vendor: update swarmkit to cb6d8131

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
This commit is contained in:
Tonis Tiigi 2016-08-09 11:49:39 -07:00
parent 19a3289250
commit 3b555a575d
38 changed files with 1419 additions and 576 deletions

View file

@ -140,7 +140,7 @@ clone git github.com/docker/docker-credential-helpers v0.3.0
clone git github.com/docker/containerd 0ac3cd1be170d180b2baed755e8f0da547ceb267
# cluster
clone git github.com/docker/swarmkit e1c0d64515d839b76e2ef33d396c74933753ffaf
clone git github.com/docker/swarmkit cb6d81316727941665594f153434e5ce2e425c9b
clone git github.com/golang/mock bd3c8e81be01eef76d4b503f5e687d2d1354d2d9
clone git github.com/gogo/protobuf 43a2e0b1c32252bfbbdf81f7faa7a88fb3fa4028
clone git github.com/cloudflare/cfssl b895b0549c0ff676f92cf09ba971ae02bb41367b

View file

@ -4,6 +4,7 @@ import (
"fmt"
"math/rand"
"reflect"
"sync"
"time"
"github.com/docker/swarmkit/api"
@ -31,11 +32,13 @@ type Agent struct {
sessionq chan sessionOperation
worker Worker
started chan struct{}
ready chan struct{}
stopped chan struct{} // requests shutdown
closed chan struct{} // only closed in run
err error // read only after closed is closed
started chan struct{}
startOnce sync.Once // start only once
ready chan struct{}
stopped chan struct{} // requests shutdown
stopOnce sync.Once // only allow stop to be called once
closed chan struct{} // only closed in run
err error // read only after closed is closed
}
// New returns a new agent, ready for task dispatch.
@ -59,57 +62,50 @@ func New(config *Config) (*Agent, error) {
// Start begins execution of the agent in the provided context, if not already
// started.
//
// Start returns an error if the agent has already started.
func (a *Agent) Start(ctx context.Context) error {
select {
case <-a.started:
select {
case <-a.closed:
return a.err
case <-a.stopped:
return errAgentStopped
case <-ctx.Done():
return ctx.Err()
default:
return errAgentStarted
}
case <-ctx.Done():
return ctx.Err()
default:
}
err := errAgentStarted
close(a.started)
go a.run(ctx)
a.startOnce.Do(func() {
close(a.started)
go a.run(ctx)
err = nil // clear error above, only once.
})
return nil
return err
}
// Stop shuts down the agent, blocking until full shutdown. If the agent is not
// started, Stop will block until Started.
// started, Stop will block until the agent has fully shutdown.
func (a *Agent) Stop(ctx context.Context) error {
select {
case <-a.started:
select {
case <-a.closed:
return a.err
case <-a.stopped:
select {
case <-a.closed:
return a.err
case <-ctx.Done():
return ctx.Err()
}
case <-ctx.Done():
return ctx.Err()
default:
close(a.stopped)
// recurse and wait for closure
return a.Stop(ctx)
}
case <-ctx.Done():
return ctx.Err()
default:
return errAgentNotStarted
}
a.stop()
// wait till closed or context cancelled
select {
case <-a.closed:
return nil
case <-ctx.Done():
return ctx.Err()
}
}
// stop signals the agent shutdown process, returning true if this call was the
// first to actually shutdown the agent.
func (a *Agent) stop() bool {
var stopped bool
a.stopOnce.Do(func() {
close(a.stopped)
stopped = true
})
return stopped
}
// Err returns the error that caused the agent to shutdown or nil. Err blocks
@ -133,7 +129,7 @@ func (a *Agent) run(ctx context.Context) {
defer cancel()
defer close(a.closed) // full shutdown.
ctx = log.WithLogger(ctx, log.G(ctx).WithField("module", "agent"))
ctx = log.WithModule(ctx, "agent")
log.G(ctx).Debugf("(*Agent).run")
defer log.G(ctx).Debugf("(*Agent).run exited")
@ -197,11 +193,6 @@ func (a *Agent) run(ctx context.Context) {
sessionq = nil
// if we're here before <-registered, do nothing for that event
registered = nil
// Bounce the connection.
if a.config.Picker != nil {
a.config.Picker.Reset()
}
case <-session.closed:
log.G(ctx).Debugf("agent: rebuild session")
@ -218,6 +209,7 @@ func (a *Agent) run(ctx context.Context) {
if a.err == nil {
a.err = ctx.Err()
}
session.close()
return
}

View file

@ -7,7 +7,7 @@ import (
"github.com/docker/swarmkit/agent/exec"
"github.com/docker/swarmkit/api"
"github.com/docker/swarmkit/picker"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials"
)
// Config provides values for an Agent.
@ -19,15 +19,6 @@ type Config struct {
// updated with managers weights as observed by the agent.
Managers picker.Remotes
// Conn specifies the client connection Agent will use.
Conn *grpc.ClientConn
// Picker is the picker used by Conn.
// TODO(aaronl): This is only part of the config to allow resetting the
// GRPC connection. This should be refactored to address the coupling
// between Conn and Picker.
Picker *picker.Picker
// Executor specifies the executor to use for the agent.
Executor exec.Executor
@ -36,11 +27,14 @@ type Config struct {
// NotifyRoleChange channel receives new roles from session messages.
NotifyRoleChange chan<- api.NodeRole
// Credentials is credentials for grpc connection to manager.
Credentials credentials.TransportAuthenticator
}
func (c *Config) validate() error {
if c.Conn == nil {
return fmt.Errorf("agent: Connection is required")
if c.Credentials == nil {
return fmt.Errorf("agent: Credentials is required")
}
if c.Executor == nil {

View file

@ -10,10 +10,11 @@ var (
ErrClosed = errors.New("agent: closed")
errNodeNotRegistered = fmt.Errorf("node not registered")
errNodeStarted = errors.New("node: already started")
errNodeNotStarted = errors.New("node: not started")
errAgentNotStarted = errors.New("agent: not started")
errAgentStarted = errors.New("agent: already started")
errAgentStopped = errors.New("agent: stopped")
errAgentNotStarted = errors.New("agent: not started")
errTaskNoContoller = errors.New("agent: no task controller")
errTaskNotAssigned = errors.New("agent: task not assigned")

View file

@ -2,11 +2,11 @@ package exec
import (
"fmt"
"reflect"
"time"
"github.com/Sirupsen/logrus"
"github.com/docker/swarmkit/api"
"github.com/docker/swarmkit/api/equality"
"github.com/docker/swarmkit/log"
"github.com/docker/swarmkit/protobuf/ptypes"
"github.com/pkg/errors"
@ -186,7 +186,7 @@ func Do(ctx context.Context, task *api.Task, ctlr Controller) (*api.TaskStatus,
defer func() {
logStateChange(ctx, task.DesiredState, task.Status.State, status.State)
if !reflect.DeepEqual(status, task.Status) {
if !equality.TaskStatusesEqualStable(status, &task.Status) {
status.Timestamp = ptypes.MustTimestampProto(time.Now())
}
}()

View file

@ -3,7 +3,7 @@ package agent
import "golang.org/x/net/context"
// runctx blocks until the function exits, closed is closed, or the context is
// cancelled. Call as part os go statement.
// cancelled. Call as part of go statement.
func runctx(ctx context.Context, closed chan struct{}, errs chan error, fn func(ctx context.Context) error) {
select {
case errs <- fn(ctx):

View file

@ -89,7 +89,9 @@ type Node struct {
nodeID string
nodeMembership api.NodeSpec_Membership
started chan struct{}
startOnce sync.Once
stopped chan struct{}
stopOnce sync.Once
ready chan struct{} // closed when agent has completed registration and manager(if enabled) is ready to receive control requests
certificateRequested chan struct{} // closed when certificate issue request has been sent by node
closed chan struct{}
@ -137,26 +139,15 @@ func NewNode(c *NodeConfig) (*Node, error) {
// Start starts a node instance.
func (n *Node) Start(ctx context.Context) error {
select {
case <-n.started:
select {
case <-n.closed:
return n.err
case <-n.stopped:
return errAgentStopped
case <-ctx.Done():
return ctx.Err()
default:
return errAgentStarted
}
case <-ctx.Done():
return ctx.Err()
default:
}
err := errNodeStarted
close(n.started)
go n.run(ctx)
return nil
n.startOnce.Do(func() {
close(n.started)
go n.run(ctx)
err = nil // clear error above, only once.
})
return err
}
func (n *Node) run(ctx context.Context) (err error) {
@ -166,7 +157,7 @@ func (n *Node) run(ctx context.Context) (err error) {
}()
ctx, cancel := context.WithCancel(ctx)
defer cancel()
ctx = log.WithLogger(ctx, log.G(ctx).WithField("module", "node"))
ctx = log.WithModule(ctx, "node")
go func() {
select {
@ -325,27 +316,19 @@ func (n *Node) run(ctx context.Context) (err error) {
func (n *Node) Stop(ctx context.Context) error {
select {
case <-n.started:
select {
case <-n.closed:
return n.err
case <-n.stopped:
select {
case <-n.closed:
return n.err
case <-ctx.Done():
return ctx.Err()
}
case <-ctx.Done():
return ctx.Err()
default:
close(n.stopped)
// recurse and wait for closure
return n.Stop(ctx)
}
default:
return errNodeNotStarted
}
n.stopOnce.Do(func() {
close(n.stopped)
})
select {
case <-n.closed:
return nil
case <-ctx.Done():
return ctx.Err()
default:
return errAgentNotStarted
}
}
@ -361,31 +344,21 @@ func (n *Node) Err(ctx context.Context) error {
}
func (n *Node) runAgent(ctx context.Context, db *bolt.DB, creds credentials.TransportAuthenticator, ready chan<- struct{}) error {
var manager api.Peer
select {
case <-ctx.Done():
case manager = <-n.remotes.WaitSelect(ctx):
case <-n.remotes.WaitSelect(ctx):
}
if ctx.Err() != nil {
return ctx.Err()
}
picker := picker.NewPicker(n.remotes, manager.Addr)
conn, err := grpc.Dial(manager.Addr,
grpc.WithPicker(picker),
grpc.WithTransportCredentials(creds),
grpc.WithBackoffMaxDelay(maxSessionFailureBackoff))
if err != nil {
return err
}
agent, err := New(&Config{
Hostname: n.config.Hostname,
Managers: n.remotes,
Executor: n.config.Executor,
DB: db,
Conn: conn,
Picker: picker,
NotifyRoleChange: n.roleChangeReq,
Credentials: creds,
})
if err != nil {
return err

View file

@ -6,6 +6,7 @@ import (
"github.com/docker/swarmkit/api"
"github.com/docker/swarmkit/log"
"github.com/docker/swarmkit/picker"
"github.com/docker/swarmkit/protobuf/ptypes"
"golang.org/x/net/context"
"google.golang.org/grpc"
@ -27,6 +28,9 @@ var (
// flow into the agent, such as task assignment, are called back into the
// agent through errs, messages and tasks.
type session struct {
conn *grpc.ClientConn
addr string
agent *Agent
sessionID string
session api.Dispatcher_SessionClient
@ -41,12 +45,27 @@ type session struct {
func newSession(ctx context.Context, agent *Agent, delay time.Duration) *session {
s := &session{
agent: agent,
errs: make(chan error),
errs: make(chan error, 1),
messages: make(chan *api.SessionMessage),
tasks: make(chan *api.TasksMessage),
registered: make(chan struct{}),
closed: make(chan struct{}),
}
peer, err := agent.config.Managers.Select()
if err != nil {
s.errs <- err
return s
}
cc, err := grpc.Dial(peer.Addr,
grpc.WithTransportCredentials(agent.config.Credentials),
grpc.WithTimeout(dispatcherRPCTimeout),
)
if err != nil {
s.errs <- err
return s
}
s.addr = peer.Addr
s.conn = cc
go s.run(ctx, delay)
return s
@ -77,8 +96,6 @@ func (s *session) run(ctx context.Context, delay time.Duration) {
func (s *session) start(ctx context.Context) error {
log.G(ctx).Debugf("(*session).start")
client := api.NewDispatcherClient(s.agent.config.Conn)
description, err := s.agent.config.Executor.Describe(ctx)
if err != nil {
log.G(ctx).WithError(err).WithField("executor", s.agent.config.Executor).
@ -103,6 +120,8 @@ func (s *session) start(ctx context.Context) error {
// Need to run Session in a goroutine since there's no way to set a
// timeout for an individual Recv call in a stream.
go func() {
client := api.NewDispatcherClient(s.conn)
stream, err = client.Session(sessionCtx, &api.SessionRequest{
Description: description,
})
@ -133,7 +152,7 @@ func (s *session) start(ctx context.Context) error {
func (s *session) heartbeat(ctx context.Context) error {
log.G(ctx).Debugf("(*session).heartbeat")
client := api.NewDispatcherClient(s.agent.config.Conn)
client := api.NewDispatcherClient(s.conn)
heartbeat := time.NewTimer(1) // send out a heartbeat right away
defer heartbeat.Stop()
@ -195,7 +214,7 @@ func (s *session) handleSessionMessage(ctx context.Context, msg *api.SessionMess
func (s *session) watch(ctx context.Context) error {
log.G(ctx).Debugf("(*session).watch")
client := api.NewDispatcherClient(s.agent.config.Conn)
client := api.NewDispatcherClient(s.conn)
watch, err := client.Tasks(ctx, &api.TasksRequest{
SessionID: s.sessionID})
if err != nil {
@ -221,7 +240,7 @@ func (s *session) watch(ctx context.Context) error {
// sendTaskStatus uses the current session to send the status of a single task.
func (s *session) sendTaskStatus(ctx context.Context, taskID string, status *api.TaskStatus) error {
client := api.NewDispatcherClient(s.agent.config.Conn)
client := api.NewDispatcherClient(s.conn)
if _, err := client.UpdateTaskStatus(ctx, &api.UpdateTaskStatusRequest{
SessionID: s.sessionID,
Updates: []*api.UpdateTaskStatusRequest_TaskStatusUpdate{
@ -262,7 +281,7 @@ func (s *session) sendTaskStatuses(ctx context.Context, updates ...*api.UpdateTa
return updates, ctx.Err()
}
client := api.NewDispatcherClient(s.agent.config.Conn)
client := api.NewDispatcherClient(s.conn)
n := batchSize
if len(updates) < n {
@ -285,6 +304,10 @@ func (s *session) close() error {
case <-s.closed:
return errSessionClosed
default:
if s.conn != nil {
s.agent.config.Managers.ObserveIfExists(api.Peer{Addr: s.addr}, -picker.DefaultObservationWeight)
s.conn.Close()
}
close(s.closed)
return nil
}

View file

@ -68,7 +68,7 @@ func (tm *taskManager) run(ctx context.Context) {
ctx, cancelAll := context.WithCancel(ctx)
defer cancelAll() // cancel all child operations on exit.
ctx = log.WithLogger(ctx, log.G(ctx).WithField("module", "taskmanager"))
ctx = log.WithModule(ctx, "taskmanager")
var (
opctx context.Context

View file

@ -57,7 +57,7 @@ func (w *worker) Init(ctx context.Context) error {
w.mu.Lock()
defer w.mu.Unlock()
ctx = log.WithLogger(ctx, log.G(ctx).WithField("module", "worker"))
ctx = log.WithModule(ctx, "worker")
// TODO(stevvooe): Start task cleanup process.

View file

@ -668,12 +668,12 @@ func encodeVarintCa(data []byte, offset int, v uint64) int {
type raftProxyCAServer struct {
local CAServer
connSelector *raftpicker.ConnSelector
connSelector raftpicker.Interface
cluster raftpicker.RaftCluster
ctxMods []func(context.Context) (context.Context, error)
}
func NewRaftProxyCAServer(local CAServer, connSelector *raftpicker.ConnSelector, cluster raftpicker.RaftCluster, ctxMod func(context.Context) (context.Context, error)) CAServer {
func NewRaftProxyCAServer(local CAServer, connSelector raftpicker.Interface, cluster raftpicker.RaftCluster, ctxMod func(context.Context) (context.Context, error)) CAServer {
redirectChecker := func(ctx context.Context) (context.Context, error) {
s, ok := transport.StreamFromContext(ctx)
if !ok {
@ -724,17 +724,30 @@ func (p *raftProxyCAServer) GetRootCACertificate(ctx context.Context, r *GetRoot
if err != nil {
return nil, err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
return NewCAClient(conn).GetRootCACertificate(ctx, r)
}
type raftProxyNodeCAServer struct {
local NodeCAServer
connSelector *raftpicker.ConnSelector
connSelector raftpicker.Interface
cluster raftpicker.RaftCluster
ctxMods []func(context.Context) (context.Context, error)
}
func NewRaftProxyNodeCAServer(local NodeCAServer, connSelector *raftpicker.ConnSelector, cluster raftpicker.RaftCluster, ctxMod func(context.Context) (context.Context, error)) NodeCAServer {
func NewRaftProxyNodeCAServer(local NodeCAServer, connSelector raftpicker.Interface, cluster raftpicker.RaftCluster, ctxMod func(context.Context) (context.Context, error)) NodeCAServer {
redirectChecker := func(ctx context.Context) (context.Context, error) {
s, ok := transport.StreamFromContext(ctx)
if !ok {
@ -785,6 +798,19 @@ func (p *raftProxyNodeCAServer) IssueNodeCertificate(ctx context.Context, r *Iss
if err != nil {
return nil, err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
return NewNodeCAClient(conn).IssueNodeCertificate(ctx, r)
}
@ -801,6 +827,19 @@ func (p *raftProxyNodeCAServer) NodeCertificateStatus(ctx context.Context, r *No
if err != nil {
return nil, err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
return NewNodeCAClient(conn).NodeCertificateStatus(ctx, r)
}

View file

@ -4239,12 +4239,12 @@ func encodeVarintControl(data []byte, offset int, v uint64) int {
type raftProxyControlServer struct {
local ControlServer
connSelector *raftpicker.ConnSelector
connSelector raftpicker.Interface
cluster raftpicker.RaftCluster
ctxMods []func(context.Context) (context.Context, error)
}
func NewRaftProxyControlServer(local ControlServer, connSelector *raftpicker.ConnSelector, cluster raftpicker.RaftCluster, ctxMod func(context.Context) (context.Context, error)) ControlServer {
func NewRaftProxyControlServer(local ControlServer, connSelector raftpicker.Interface, cluster raftpicker.RaftCluster, ctxMod func(context.Context) (context.Context, error)) ControlServer {
redirectChecker := func(ctx context.Context) (context.Context, error) {
s, ok := transport.StreamFromContext(ctx)
if !ok {
@ -4295,6 +4295,19 @@ func (p *raftProxyControlServer) GetNode(ctx context.Context, r *GetNodeRequest)
if err != nil {
return nil, err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
return NewControlClient(conn).GetNode(ctx, r)
}
@ -4311,6 +4324,19 @@ func (p *raftProxyControlServer) ListNodes(ctx context.Context, r *ListNodesRequ
if err != nil {
return nil, err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
return NewControlClient(conn).ListNodes(ctx, r)
}
@ -4327,6 +4353,19 @@ func (p *raftProxyControlServer) UpdateNode(ctx context.Context, r *UpdateNodeRe
if err != nil {
return nil, err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
return NewControlClient(conn).UpdateNode(ctx, r)
}
@ -4343,6 +4382,19 @@ func (p *raftProxyControlServer) RemoveNode(ctx context.Context, r *RemoveNodeRe
if err != nil {
return nil, err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
return NewControlClient(conn).RemoveNode(ctx, r)
}
@ -4359,6 +4411,19 @@ func (p *raftProxyControlServer) GetTask(ctx context.Context, r *GetTaskRequest)
if err != nil {
return nil, err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
return NewControlClient(conn).GetTask(ctx, r)
}
@ -4375,6 +4440,19 @@ func (p *raftProxyControlServer) ListTasks(ctx context.Context, r *ListTasksRequ
if err != nil {
return nil, err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
return NewControlClient(conn).ListTasks(ctx, r)
}
@ -4391,6 +4469,19 @@ func (p *raftProxyControlServer) RemoveTask(ctx context.Context, r *RemoveTaskRe
if err != nil {
return nil, err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
return NewControlClient(conn).RemoveTask(ctx, r)
}
@ -4407,6 +4498,19 @@ func (p *raftProxyControlServer) GetService(ctx context.Context, r *GetServiceRe
if err != nil {
return nil, err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
return NewControlClient(conn).GetService(ctx, r)
}
@ -4423,6 +4527,19 @@ func (p *raftProxyControlServer) ListServices(ctx context.Context, r *ListServic
if err != nil {
return nil, err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
return NewControlClient(conn).ListServices(ctx, r)
}
@ -4439,6 +4556,19 @@ func (p *raftProxyControlServer) CreateService(ctx context.Context, r *CreateSer
if err != nil {
return nil, err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
return NewControlClient(conn).CreateService(ctx, r)
}
@ -4455,6 +4585,19 @@ func (p *raftProxyControlServer) UpdateService(ctx context.Context, r *UpdateSer
if err != nil {
return nil, err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
return NewControlClient(conn).UpdateService(ctx, r)
}
@ -4471,6 +4614,19 @@ func (p *raftProxyControlServer) RemoveService(ctx context.Context, r *RemoveSer
if err != nil {
return nil, err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
return NewControlClient(conn).RemoveService(ctx, r)
}
@ -4487,6 +4643,19 @@ func (p *raftProxyControlServer) GetNetwork(ctx context.Context, r *GetNetworkRe
if err != nil {
return nil, err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
return NewControlClient(conn).GetNetwork(ctx, r)
}
@ -4503,6 +4672,19 @@ func (p *raftProxyControlServer) ListNetworks(ctx context.Context, r *ListNetwor
if err != nil {
return nil, err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
return NewControlClient(conn).ListNetworks(ctx, r)
}
@ -4519,6 +4701,19 @@ func (p *raftProxyControlServer) CreateNetwork(ctx context.Context, r *CreateNet
if err != nil {
return nil, err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
return NewControlClient(conn).CreateNetwork(ctx, r)
}
@ -4535,6 +4730,19 @@ func (p *raftProxyControlServer) RemoveNetwork(ctx context.Context, r *RemoveNet
if err != nil {
return nil, err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
return NewControlClient(conn).RemoveNetwork(ctx, r)
}
@ -4551,6 +4759,19 @@ func (p *raftProxyControlServer) GetCluster(ctx context.Context, r *GetClusterRe
if err != nil {
return nil, err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
return NewControlClient(conn).GetCluster(ctx, r)
}
@ -4567,6 +4788,19 @@ func (p *raftProxyControlServer) ListClusters(ctx context.Context, r *ListCluste
if err != nil {
return nil, err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
return NewControlClient(conn).ListClusters(ctx, r)
}
@ -4583,6 +4817,19 @@ func (p *raftProxyControlServer) UpdateCluster(ctx context.Context, r *UpdateClu
if err != nil {
return nil, err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
return NewControlClient(conn).UpdateCluster(ctx, r)
}

View file

@ -1072,12 +1072,12 @@ func encodeVarintDispatcher(data []byte, offset int, v uint64) int {
type raftProxyDispatcherServer struct {
local DispatcherServer
connSelector *raftpicker.ConnSelector
connSelector raftpicker.Interface
cluster raftpicker.RaftCluster
ctxMods []func(context.Context) (context.Context, error)
}
func NewRaftProxyDispatcherServer(local DispatcherServer, connSelector *raftpicker.ConnSelector, cluster raftpicker.RaftCluster, ctxMod func(context.Context) (context.Context, error)) DispatcherServer {
func NewRaftProxyDispatcherServer(local DispatcherServer, connSelector raftpicker.Interface, cluster raftpicker.RaftCluster, ctxMod func(context.Context) (context.Context, error)) DispatcherServer {
redirectChecker := func(ctx context.Context) (context.Context, error) {
s, ok := transport.StreamFromContext(ctx)
if !ok {
@ -1128,6 +1128,19 @@ func (p *raftProxyDispatcherServer) Session(r *SessionRequest, stream Dispatcher
if err != nil {
return err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
clientStream, err := NewDispatcherClient(conn).Session(ctx, r)
if err != nil {
@ -1162,6 +1175,19 @@ func (p *raftProxyDispatcherServer) Heartbeat(ctx context.Context, r *HeartbeatR
if err != nil {
return nil, err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
return NewDispatcherClient(conn).Heartbeat(ctx, r)
}
@ -1178,6 +1204,19 @@ func (p *raftProxyDispatcherServer) UpdateTaskStatus(ctx context.Context, r *Upd
if err != nil {
return nil, err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
return NewDispatcherClient(conn).UpdateTaskStatus(ctx, r)
}
@ -1194,6 +1233,19 @@ func (p *raftProxyDispatcherServer) Tasks(r *TasksRequest, stream Dispatcher_Tas
if err != nil {
return err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
clientStream, err := NewDispatcherClient(conn).Tasks(ctx, r)
if err != nil {

View file

@ -19,3 +19,11 @@ func TasksEqualStable(a, b *api.Task) bool {
return reflect.DeepEqual(&copyA, &copyB)
}
// TaskStatusesEqualStable compares the task status excluding timestamp fields.
func TaskStatusesEqualStable(a, b *api.TaskStatus) bool {
copyA, copyB := *a, *b
copyA.Timestamp, copyB.Timestamp = nil, nil
return reflect.DeepEqual(&copyA, &copyB)
}

View file

@ -319,12 +319,12 @@ func encodeVarintHealth(data []byte, offset int, v uint64) int {
type raftProxyHealthServer struct {
local HealthServer
connSelector *raftpicker.ConnSelector
connSelector raftpicker.Interface
cluster raftpicker.RaftCluster
ctxMods []func(context.Context) (context.Context, error)
}
func NewRaftProxyHealthServer(local HealthServer, connSelector *raftpicker.ConnSelector, cluster raftpicker.RaftCluster, ctxMod func(context.Context) (context.Context, error)) HealthServer {
func NewRaftProxyHealthServer(local HealthServer, connSelector raftpicker.Interface, cluster raftpicker.RaftCluster, ctxMod func(context.Context) (context.Context, error)) HealthServer {
redirectChecker := func(ctx context.Context) (context.Context, error) {
s, ok := transport.StreamFromContext(ctx)
if !ok {
@ -375,6 +375,19 @@ func (p *raftProxyHealthServer) Check(ctx context.Context, r *HealthCheckRequest
if err != nil {
return nil, err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
return NewHealthClient(conn).Check(ctx, r)
}

View file

@ -1438,12 +1438,12 @@ func encodeVarintRaft(data []byte, offset int, v uint64) int {
type raftProxyRaftServer struct {
local RaftServer
connSelector *raftpicker.ConnSelector
connSelector raftpicker.Interface
cluster raftpicker.RaftCluster
ctxMods []func(context.Context) (context.Context, error)
}
func NewRaftProxyRaftServer(local RaftServer, connSelector *raftpicker.ConnSelector, cluster raftpicker.RaftCluster, ctxMod func(context.Context) (context.Context, error)) RaftServer {
func NewRaftProxyRaftServer(local RaftServer, connSelector raftpicker.Interface, cluster raftpicker.RaftCluster, ctxMod func(context.Context) (context.Context, error)) RaftServer {
redirectChecker := func(ctx context.Context) (context.Context, error) {
s, ok := transport.StreamFromContext(ctx)
if !ok {
@ -1494,6 +1494,19 @@ func (p *raftProxyRaftServer) ProcessRaftMessage(ctx context.Context, r *Process
if err != nil {
return nil, err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
return NewRaftClient(conn).ProcessRaftMessage(ctx, r)
}
@ -1510,17 +1523,30 @@ func (p *raftProxyRaftServer) ResolveAddress(ctx context.Context, r *ResolveAddr
if err != nil {
return nil, err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
return NewRaftClient(conn).ResolveAddress(ctx, r)
}
type raftProxyRaftMembershipServer struct {
local RaftMembershipServer
connSelector *raftpicker.ConnSelector
connSelector raftpicker.Interface
cluster raftpicker.RaftCluster
ctxMods []func(context.Context) (context.Context, error)
}
func NewRaftProxyRaftMembershipServer(local RaftMembershipServer, connSelector *raftpicker.ConnSelector, cluster raftpicker.RaftCluster, ctxMod func(context.Context) (context.Context, error)) RaftMembershipServer {
func NewRaftProxyRaftMembershipServer(local RaftMembershipServer, connSelector raftpicker.Interface, cluster raftpicker.RaftCluster, ctxMod func(context.Context) (context.Context, error)) RaftMembershipServer {
redirectChecker := func(ctx context.Context) (context.Context, error) {
s, ok := transport.StreamFromContext(ctx)
if !ok {
@ -1571,6 +1597,19 @@ func (p *raftProxyRaftMembershipServer) Join(ctx context.Context, r *JoinRequest
if err != nil {
return nil, err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
return NewRaftMembershipClient(conn).Join(ctx, r)
}
@ -1587,6 +1626,19 @@ func (p *raftProxyRaftMembershipServer) Leave(ctx context.Context, r *LeaveReque
if err != nil {
return nil, err
}
defer func() {
if err != nil {
errStr := err.Error()
if strings.Contains(errStr, grpc.ErrClientConnClosing.Error()) ||
strings.Contains(errStr, grpc.ErrClientConnTimeout.Error()) ||
strings.Contains(errStr, "connection error") ||
grpc.Code(err) == codes.Internal {
p.connSelector.Reset()
}
}
}()
return NewRaftMembershipClient(conn).Leave(ctx, r)
}

View file

@ -432,8 +432,14 @@ type ContainerSpec struct {
// Dir defines the working directory to set for the container process.
Dir string `protobuf:"bytes,6,opt,name=dir,proto3" json:"dir,omitempty"`
// User specifies the user that should be employed to run the container.
User string `protobuf:"bytes,7,opt,name=user,proto3" json:"user,omitempty"`
Mounts []Mount `protobuf:"bytes,8,rep,name=mounts" json:"mounts"`
//
// Note that the primary group may be specified by appending the group name
// or id to the user name, separated by a `:`. This syntax is
// `<user>:<group>`.
User string `protobuf:"bytes,7,opt,name=user,proto3" json:"user,omitempty"`
// Groups specifies supplementary groups available to the user.
Groups []string `protobuf:"bytes,11,rep,name=groups" json:"groups,omitempty"`
Mounts []Mount `protobuf:"bytes,8,rep,name=mounts" json:"mounts"`
// StopGracePeriod the grace period for stopping the container before
// forcefully killing the container.
StopGracePeriod *docker_swarmkit_v11.Duration `protobuf:"bytes,9,opt,name=stop_grace_period,json=stopGracePeriod" json:"stop_grace_period,omitempty"`
@ -688,6 +694,13 @@ func (m *ContainerSpec) Copy() *ContainerSpec {
}
}
if m.Groups != nil {
o.Groups = make([]string, 0, len(m.Groups))
for _, v := range m.Groups {
o.Groups = append(o.Groups, v)
}
}
if m.Mounts != nil {
o.Mounts = make([]Mount, 0, len(m.Mounts))
for _, v := range m.Mounts {
@ -881,7 +894,7 @@ func (this *ContainerSpec) GoString() string {
if this == nil {
return "nil"
}
s := make([]string, 0, 14)
s := make([]string, 0, 15)
s = append(s, "&api.ContainerSpec{")
s = append(s, "Image: "+fmt.Sprintf("%#v", this.Image)+",\n")
keysForLabels := make([]string, 0, len(this.Labels))
@ -902,6 +915,7 @@ func (this *ContainerSpec) GoString() string {
s = append(s, "Env: "+fmt.Sprintf("%#v", this.Env)+",\n")
s = append(s, "Dir: "+fmt.Sprintf("%#v", this.Dir)+",\n")
s = append(s, "User: "+fmt.Sprintf("%#v", this.User)+",\n")
s = append(s, "Groups: "+fmt.Sprintf("%#v", this.Groups)+",\n")
if this.Mounts != nil {
s = append(s, "Mounts: "+fmt.Sprintf("%#v", this.Mounts)+",\n")
}
@ -1424,6 +1438,21 @@ func (m *ContainerSpec) MarshalTo(data []byte) (int, error) {
}
i += n16
}
if len(m.Groups) > 0 {
for _, s := range m.Groups {
data[i] = 0x5a
i++
l = len(s)
for l >= 1<<7 {
data[i] = uint8(uint64(l)&0x7f | 0x80)
l >>= 7
i++
}
data[i] = uint8(l)
i++
i += copy(data[i:], s)
}
}
return i, nil
}
@ -1838,6 +1867,12 @@ func (m *ContainerSpec) Size() (n int) {
l = m.PullOptions.Size()
n += 1 + l + sovSpecs(uint64(l))
}
if len(m.Groups) > 0 {
for _, s := range m.Groups {
l = len(s)
n += 1 + l + sovSpecs(uint64(l))
}
}
return n
}
@ -2048,6 +2083,7 @@ func (this *ContainerSpec) String() string {
`Mounts:` + strings.Replace(strings.Replace(fmt.Sprintf("%v", this.Mounts), "Mount", "Mount", 1), `&`, ``, 1) + `,`,
`StopGracePeriod:` + strings.Replace(fmt.Sprintf("%v", this.StopGracePeriod), "Duration", "docker_swarmkit_v11.Duration", 1) + `,`,
`PullOptions:` + strings.Replace(fmt.Sprintf("%v", this.PullOptions), "ContainerSpec_PullOptions", "ContainerSpec_PullOptions", 1) + `,`,
`Groups:` + fmt.Sprintf("%v", this.Groups) + `,`,
`}`,
}, "")
return s
@ -3371,6 +3407,35 @@ func (m *ContainerSpec) Unmarshal(data []byte) error {
return err
}
iNdEx = postIndex
case 11:
if wireType != 2 {
return fmt.Errorf("proto: wrong wireType = %d for field Groups", wireType)
}
var stringLen uint64
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowSpecs
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := data[iNdEx]
iNdEx++
stringLen |= (uint64(b) & 0x7F) << shift
if b < 0x80 {
break
}
}
intStringLen := int(stringLen)
if intStringLen < 0 {
return ErrInvalidLengthSpecs
}
postIndex := iNdEx + intStringLen
if postIndex > l {
return io.ErrUnexpectedEOF
}
m.Groups = append(m.Groups, string(data[iNdEx:postIndex]))
iNdEx = postIndex
default:
iNdEx = preIndex
skippy, err := skipSpecs(data[iNdEx:])
@ -4123,89 +4188,89 @@ var (
)
var fileDescriptorSpecs = []byte{
// 1332 bytes of a gzipped FileDescriptorProto
// 1344 bytes of a gzipped FileDescriptorProto
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0xe6, 0xcd, 0xef, 0xf7, 0x66, 0xe6, 0xbd, 0xdf, 0xbc, 0xb7, 0x06, 0x3b, 0x89, 0xb9, 0x9b, 0x34,
0x63, 0x11, 0xc9, 0x88, 0x10, 0x2f, 0x72, 0x8f, 0xb8, 0x68, 0x26, 0x0f, 0x99, 0x18, 0x1e, 0xf9,
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0xdf, 0x3d, 0x5b, 0x2b, 0x3c, 0xc6, 0xdf, 0xef, 0xf8, 0xfb, 0x0b, 0x7f, 0x07, 0x45, 0xf3, 0x87,
0xe3, 0xc3, 0x7f, 0x03, 0x00, 0x00, 0xff, 0xff, 0xa4, 0x46, 0x7c, 0xf6, 0xcf, 0x0c, 0x00, 0x00,
}

View file

@ -160,8 +160,15 @@ message ContainerSpec {
string dir = 6;
// User specifies the user that should be employed to run the container.
//
// Note that the primary group may be specified by appending the group name
// or id to the user name, separated by a `:`. This syntax is
// `<user>:<group>`.
string user = 7;
// Groups specifies supplementary groups available to the user.
repeated string groups = 11;
repeated Mount mounts = 8 [(gogoproto.nullable) = false];
// StopGracePeriod the grace period for stopping the container before

View file

@ -57,19 +57,17 @@ const (
RootCAExpiration = "630720000s"
// DefaultNodeCertExpiration represents the default expiration for node certificates (3 months)
DefaultNodeCertExpiration = 2160 * time.Hour
// CertBackdate represents the amount of time each certificate is backdated to try to avoid
// clock drift issues.
CertBackdate = 1 * time.Hour
// CertLowerRotationRange represents the minimum fraction of time that we will wait when randomly
// choosing our next certificate rotation
CertLowerRotationRange = 0.5
// CertUpperRotationRange represents the maximum fraction of time that we will wait when randomly
// choosing our next certificate rotation
CertUpperRotationRange = 0.8
// MinNodeCertExpiration represents the minimum expiration for node certificates (25 + 5 minutes)
// X - 5 > CertUpperRotationRange * X <=> X < 5/(1 - CertUpperRotationRange)
// Since we're issuing certificates 5 minutes in the past to get around clock drifts, and
// we're selecting a random rotation distribution range from CertLowerRotationRange to
// CertUpperRotationRange, we need to ensure that we don't accept an expiration time that will
// make a node able to randomly choose the next rotation after the expiration of the certificate.
MinNodeCertExpiration = 30 * time.Minute
// MinNodeCertExpiration represents the minimum expiration for node certificates
MinNodeCertExpiration = 1 * time.Hour
)
// ErrNoLocalRootCA is an error type used to indicate that the local root CA

View file

@ -109,12 +109,6 @@ func (s *SecurityConfig) UpdateRootCA(cert, key []byte, certExpiry time.Duration
return err
}
// DefaultPolicy is the default policy used by the signers to ensure that the only fields
// from the remote CSRs we trust are: PublicKey, PublicKeyAlgorithm and SignatureAlgorithm.
func DefaultPolicy() *cfconfig.Signing {
return SigningPolicy(DefaultNodeCertExpiration)
}
// SigningPolicy creates a policy used by the signer to ensure that the only fields
// from the remote CSRs we trust are: PublicKey, PublicKeyAlgorithm and SignatureAlgorithm.
// It receives the duration a certificate will be valid for
@ -124,10 +118,14 @@ func SigningPolicy(certExpiry time.Duration) *cfconfig.Signing {
certExpiry = DefaultNodeCertExpiration
}
// Add the backdate
certExpiry = certExpiry + CertBackdate
return &cfconfig.Signing{
Default: &cfconfig.SigningProfile{
Usage: []string{"signing", "key encipherment", "server auth", "client auth"},
Expiry: certExpiry,
Usage: []string{"signing", "key encipherment", "server auth", "client auth"},
Expiry: certExpiry,
Backdate: CertBackdate,
// Only trust the key components from the CSR. Everything else should
// come directly from API call params.
CSRWhitelist: &cfconfig.CSRWhitelist{
@ -396,7 +394,7 @@ func RenewTLSConfig(ctx context.Context, s *SecurityConfig, baseCertDir string,
// calculateRandomExpiry returns a random duration between 50% and 80% of the original
// duration
func calculateRandomExpiry(expiresIn time.Duration) time.Duration {
if expiresIn.Minutes() < 1 {
if expiresIn.Minutes() <= 1 {
return time.Second
}

View file

@ -306,8 +306,7 @@ func (s *Server) Run(ctx context.Context) error {
s.mu.Unlock()
defer s.wg.Done()
logger := log.G(ctx).WithField("module", "ca")
ctx = log.WithLogger(ctx, logger)
ctx = log.WithModule(ctx, "ca")
// Retrieve the channels to keep track of changes in the cluster
// Retrieve all the currently registered nodes

View file

@ -1,6 +1,8 @@
package log
import (
"path"
"github.com/Sirupsen/logrus"
"golang.org/x/net/context"
)
@ -16,7 +18,10 @@ var (
L = logrus.NewEntry(logrus.StandardLogger())
)
type loggerKey struct{}
type (
loggerKey struct{}
moduleKey struct{}
)
// WithLogger returns a new context with the provided logger. Use in
// combination with logger.WithField(s) for great effect.
@ -35,3 +40,42 @@ func GetLogger(ctx context.Context) *logrus.Entry {
return logger.(*logrus.Entry)
}
// WithModule adds the module to the context, appending it with a slash if a
// module already exists. A module is just an roughly correlated defined by the
// call tree for a given context.
//
// As an example, we might have a "node" module already part of a context. If
// this function is called with "tls", the new value of module will be
// "node/tls".
//
// Modules represent the call path. If the new module and last module are the
// same, a new module entry will not be created. If the new module and old
// older module are the same but separated by other modules, the cycle will be
// represented by the module path.
func WithModule(ctx context.Context, module string) context.Context {
parent := GetModulePath(ctx)
if parent != "" {
// don't re-append module when module is the same.
if path.Base(parent) == module {
return ctx
}
module = path.Join(parent, module)
}
ctx = WithLogger(ctx, GetLogger(ctx).WithField("module", module))
return context.WithValue(ctx, moduleKey{}, module)
}
// GetModulePath returns the module path for the provided context. If no module
// is set, an empty string is returned.
func GetModulePath(ctx context.Context) string {
module := ctx.Value(moduleKey{})
if module == nil {
return ""
}
return module.(string)
}

View file

@ -9,10 +9,10 @@
// allocation, they all have to agree on that. The way this achieved
// in `allocator` is by creating a `taskBallot` to which all task
// allocators register themselves as mandatory voters. For each task
// that needs allocation, each allocator indepdently votes to indicate
// that needs allocation, each allocator independently votes to indicate
// the completion of their allocation. Once all registered voters have
// voted then the task is moved to ALLOCATED state.
//
// Other than the coordination needed for task ALLOCATED state, all
// the allocators function fairly indepdently.
// the allocators function fairly independently.
package allocator

View file

@ -193,7 +193,7 @@ func (a *Allocator) doNetworkInit(ctx context.Context) error {
}
for _, s := range services {
if !serviceAllocationNeeded(s, nc) {
if nc.nwkAllocator.IsServiceAllocated(s) {
continue
}
@ -304,7 +304,7 @@ func (a *Allocator) doNetworkAlloc(ctx context.Context, ev events.Event) {
case state.EventCreateService:
s := v.Service.Copy()
if !serviceAllocationNeeded(s, nc) {
if nc.nwkAllocator.IsServiceAllocated(s) {
break
}
@ -315,7 +315,7 @@ func (a *Allocator) doNetworkAlloc(ctx context.Context, ev events.Event) {
case state.EventUpdateService:
s := v.Service.Copy()
if !serviceAllocationNeeded(s, nc) {
if nc.nwkAllocator.IsServiceAllocated(s) {
break
}
@ -326,13 +326,13 @@ func (a *Allocator) doNetworkAlloc(ctx context.Context, ev events.Event) {
case state.EventDeleteService:
s := v.Service.Copy()
if serviceAllocationNeeded(s, nc) {
break
}
if err := nc.nwkAllocator.ServiceDeallocate(s); err != nil {
log.G(ctx).Errorf("Failed deallocation during delete of service %s: %v", s.ID, err)
}
// Remove it from unallocatedServices just in case
// it's still there.
delete(nc.unallocatedServices, s.ID)
case state.EventCreateNode, state.EventUpdateNode, state.EventDeleteNode:
a.doNodeAlloc(ctx, nc, ev)
case state.EventCreateTask, state.EventUpdateTask, state.EventDeleteTask:
@ -382,23 +382,6 @@ func (a *Allocator) doNodeAlloc(ctx context.Context, nc *networkContext, ev even
}
}
// serviceAllocationNeeded returns if a service needs allocation or not.
func serviceAllocationNeeded(s *api.Service, nc *networkContext) bool {
// Service needs allocation if:
// Spec has network attachments and endpoint resolution mode is VIP OR
// Spec has non-zero number of exposed ports and ingress routing is SwarmPort
if (len(s.Spec.Networks) != 0 &&
(s.Spec.Endpoint == nil ||
(s.Spec.Endpoint != nil &&
s.Spec.Endpoint.Mode == api.ResolutionModeVirtualIP))) ||
(s.Spec.Endpoint != nil &&
len(s.Spec.Endpoint.Ports) != 0) {
return !nc.nwkAllocator.IsServiceAllocated(s)
}
return false
}
// taskRunning checks whether a task is either actively running, or in the
// process of starting up.
func taskRunning(t *api.Task) bool {
@ -420,7 +403,7 @@ func taskReadyForNetworkVote(t *api.Task, s *api.Service, nc *networkContext) bo
// network configured or service endpoints have been
// allocated.
return (len(t.Networks) == 0 || nc.nwkAllocator.IsTaskAllocated(t)) &&
(s == nil || !serviceAllocationNeeded(s, nc))
(s == nil || nc.nwkAllocator.IsServiceAllocated(s))
}
func taskUpdateNetworks(t *api.Task, networks []*api.NetworkAttachment) {
@ -599,6 +582,22 @@ func (a *Allocator) allocateService(ctx context.Context, nc *networkContext, s *
return err
}
// If the service doesn't expose ports any more and if we have
// any lingering virtual IP references for ingress network
// clean them up here.
if s.Spec.Endpoint == nil || len(s.Spec.Endpoint.Ports) == 0 {
if s.Endpoint != nil {
for i, vip := range s.Endpoint.VirtualIPs {
if vip.NetworkID == nc.ingressNetwork.ID {
n := len(s.Endpoint.VirtualIPs)
s.Endpoint.VirtualIPs[i], s.Endpoint.VirtualIPs[n-1] = s.Endpoint.VirtualIPs[n-1], nil
s.Endpoint.VirtualIPs = s.Endpoint.VirtualIPs[:n-1]
break
}
}
}
}
if err := a.store.Update(func(tx store.Tx) error {
for {
err := store.UpdateService(tx, s)
@ -670,7 +669,7 @@ func (a *Allocator) allocateTask(ctx context.Context, nc *networkContext, tx sto
return nil, fmt.Errorf("could not find service %s", t.ServiceID)
}
if serviceAllocationNeeded(s, nc) {
if !nc.nwkAllocator.IsServiceAllocated(s) {
return nil, fmt.Errorf("service %s to which this task %s belongs has pending allocations", s.ID, t.ID)
}
@ -733,7 +732,7 @@ func (a *Allocator) procUnallocatedNetworks(ctx context.Context, nc *networkCont
func (a *Allocator) procUnallocatedServices(ctx context.Context, nc *networkContext) {
for _, s := range nc.unallocatedServices {
if serviceAllocationNeeded(s, nc) {
if !nc.nwkAllocator.IsServiceAllocated(s) {
if err := a.allocateService(ctx, nc, s); err != nil {
log.G(ctx).Debugf("Failed allocation of unallocated service %s: %v", s.ID, err)
continue

View file

@ -165,15 +165,29 @@ func (na *NetworkAllocator) ServiceAllocate(s *api.Service) (err error) {
}
}()
// If ResolutionMode is DNSRR do not try allocating VIPs.
if s.Spec.Endpoint != nil && s.Spec.Endpoint.Mode == api.ResolutionModeDNSRoundRobin {
return
}
if s.Endpoint == nil {
s.Endpoint = &api.Endpoint{
Spec: s.Spec.Endpoint.Copy(),
s.Endpoint = &api.Endpoint{}
}
s.Endpoint.Spec = s.Spec.Endpoint.Copy()
// If ResolutionMode is DNSRR do not try allocating VIPs, but
// free any VIP from previous state.
if s.Spec.Endpoint != nil && s.Spec.Endpoint.Mode == api.ResolutionModeDNSRoundRobin {
if s.Endpoint != nil {
for _, vip := range s.Endpoint.VirtualIPs {
if err := na.deallocateVIP(vip); err != nil {
// don't bail here, deallocate as many as possible.
log.L.WithError(err).
WithField("vip.network", vip.NetworkID).
WithField("vip.addr", vip.Addr).Error("error deallocating vip")
}
}
s.Endpoint.VirtualIPs = nil
}
delete(na.services, s.ID)
return
}
// First allocate VIPs for all the pre-populated endpoint attachments
@ -198,7 +212,6 @@ outer:
s.Endpoint.VirtualIPs = append(s.Endpoint.VirtualIPs, vip)
}
s.Endpoint.Spec = s.Spec.Endpoint.Copy()
na.services[s.ID] = struct{}{}
return
@ -232,7 +245,7 @@ func (na *NetworkAllocator) IsAllocated(n *api.Network) bool {
return ok
}
// IsTaskAllocated returns if the passed task has it's network resources allocated or not.
// IsTaskAllocated returns if the passed task has its network resources allocated or not.
func (na *NetworkAllocator) IsTaskAllocated(t *api.Task) bool {
// If the task is not found in the allocated set, then it is
// not allocated.
@ -245,7 +258,7 @@ func (na *NetworkAllocator) IsTaskAllocated(t *api.Task) bool {
return false
}
// To determine whether the task has it's resources allocated,
// To determine whether the task has its resources allocated,
// we just need to look at one network(in case of
// multi-network attachment). This is because we make sure we
// allocate for every network or we allocate for none.
@ -269,13 +282,30 @@ func (na *NetworkAllocator) IsTaskAllocated(t *api.Task) bool {
return true
}
// IsServiceAllocated returns if the passed service has it's network resources allocated or not.
// IsServiceAllocated returns if the passed service has its network resources allocated or not.
func (na *NetworkAllocator) IsServiceAllocated(s *api.Service) bool {
if _, ok := na.services[s.ID]; !ok {
return false
// If endpoint mode is VIP and allocator does not have the
// service in VIP allocated set then it is not allocated.
if len(s.Spec.Networks) != 0 &&
(s.Spec.Endpoint == nil ||
s.Spec.Endpoint.Mode == api.ResolutionModeVirtualIP) {
if _, ok := na.services[s.ID]; !ok {
return false
}
}
if s.Spec.Endpoint != nil {
// If the endpoint mode is DNSRR and allocator has the service
// in VIP allocated set then we return not allocated to make
// sure the allocator triggers networkallocator to free up the
// resources if any.
if s.Spec.Endpoint != nil && s.Spec.Endpoint.Mode == api.ResolutionModeDNSRoundRobin {
if _, ok := na.services[s.ID]; ok {
return false
}
}
if (s.Spec.Endpoint != nil && len(s.Spec.Endpoint.Ports) != 0) ||
(s.Endpoint != nil && len(s.Endpoint.Ports) != 0) {
return na.portAllocator.isPortsAllocated(s)
}

View file

@ -186,7 +186,7 @@ func (s *Server) ListClusters(ctx context.Context, request *api.ListClustersRequ
}
// redactClusters is a method that enforces a whitelist of fields that are ok to be
// returned in the Cluster object. It should filter out all senstive information.
// returned in the Cluster object. It should filter out all sensitive information.
func redactClusters(clusters []*api.Cluster) []*api.Cluster {
var redactedClusters []*api.Cluster
// Only add public fields to the new clusters

View file

@ -0,0 +1,12 @@
package hackpicker
// AddrSelector is interface which should track cluster for its leader address.
type AddrSelector interface {
LeaderAddr() (string, error)
}
// RaftCluster is interface which combines useful methods for clustering.
type RaftCluster interface {
AddrSelector
IsLeader() bool
}

View file

@ -0,0 +1,141 @@
// Package hackpicker is temporary solution to provide more seamless experience
// for controlapi. It has drawback of slow reaction to leader change, but it
// tracks leader automatically without erroring out to client.
package hackpicker
import (
"sync"
"golang.org/x/net/context"
"google.golang.org/grpc"
"google.golang.org/grpc/transport"
)
// picker always picks address of cluster leader.
type picker struct {
mu sync.Mutex
addr string
raft AddrSelector
conn *grpc.Conn
cc *grpc.ClientConn
}
// Init does initial processing for the Picker, e.g., initiate some connections.
func (p *picker) Init(cc *grpc.ClientConn) error {
p.cc = cc
return nil
}
func (p *picker) initConn() error {
if p.conn == nil {
conn, err := grpc.NewConn(p.cc)
if err != nil {
return err
}
p.conn = conn
}
return nil
}
// Pick blocks until either a transport.ClientTransport is ready for the upcoming RPC
// or some error happens.
func (p *picker) Pick(ctx context.Context) (transport.ClientTransport, error) {
p.mu.Lock()
if err := p.initConn(); err != nil {
p.mu.Unlock()
return nil, err
}
p.mu.Unlock()
addr, err := p.raft.LeaderAddr()
if err != nil {
return nil, err
}
p.mu.Lock()
if p.addr != addr {
p.addr = addr
p.conn.NotifyReset()
}
p.mu.Unlock()
return p.conn.Wait(ctx)
}
// PickAddr picks a peer address for connecting. This will be called repeated for
// connecting/reconnecting.
func (p *picker) PickAddr() (string, error) {
addr, err := p.raft.LeaderAddr()
if err != nil {
return "", err
}
p.mu.Lock()
p.addr = addr
p.mu.Unlock()
return addr, nil
}
// State returns the connectivity state of the underlying connections.
func (p *picker) State() (grpc.ConnectivityState, error) {
return p.conn.State(), nil
}
// WaitForStateChange blocks until the state changes to something other than
// the sourceState. It returns the new state or error.
func (p *picker) WaitForStateChange(ctx context.Context, sourceState grpc.ConnectivityState) (grpc.ConnectivityState, error) {
return p.conn.WaitForStateChange(ctx, sourceState)
}
// Reset the current connection and force a reconnect to another address.
func (p *picker) Reset() error {
p.conn.NotifyReset()
return nil
}
// Close closes all the Conn's owned by this Picker.
func (p *picker) Close() error {
return p.conn.Close()
}
// ConnSelector is struct for obtaining connection with raftpicker.
type ConnSelector struct {
mu sync.Mutex
cc *grpc.ClientConn
cluster RaftCluster
opts []grpc.DialOption
}
// NewConnSelector returns new ConnSelector with cluster and grpc.DialOpts which
// will be used for Dial on first call of Conn.
func NewConnSelector(cluster RaftCluster, opts ...grpc.DialOption) *ConnSelector {
return &ConnSelector{
cluster: cluster,
opts: opts,
}
}
// Conn returns *grpc.ClientConn with picker which picks raft cluster leader.
// Internal connection estabilished lazily on this call.
// It can return error if cluster wasn't ready at the moment of initial call.
func (c *ConnSelector) Conn() (*grpc.ClientConn, error) {
c.mu.Lock()
defer c.mu.Unlock()
if c.cc != nil {
return c.cc, nil
}
addr, err := c.cluster.LeaderAddr()
if err != nil {
return nil, err
}
picker := &picker{raft: c.cluster, addr: addr}
opts := append(c.opts, grpc.WithPicker(picker))
cc, err := grpc.Dial(addr, opts...)
if err != nil {
return nil, err
}
c.cc = cc
return c.cc, nil
}
// Reset does nothing for hackpicker.
func (c *ConnSelector) Reset() error {
return nil
}

View file

@ -182,7 +182,7 @@ func validateServiceSpec(spec *api.ServiceSpec) error {
// checkPortConflicts does a best effort to find if the passed in spec has port
// conflicts with existing services.
func (s *Server) checkPortConflicts(spec *api.ServiceSpec) error {
func (s *Server) checkPortConflicts(spec *api.ServiceSpec, serviceID string) error {
if spec.Endpoint == nil {
return nil
}
@ -215,17 +215,21 @@ func (s *Server) checkPortConflicts(spec *api.ServiceSpec) error {
}
for _, service := range services {
// If service ID is the same (and not "") then this is an update
if serviceID != "" && serviceID == service.ID {
continue
}
if service.Spec.Endpoint != nil {
for _, pc := range service.Spec.Endpoint.Ports {
if reqPorts[pcToString(pc)] {
return grpc.Errorf(codes.InvalidArgument, "port '%d' is already in use by service %s", pc.PublishedPort, service.ID)
return grpc.Errorf(codes.InvalidArgument, "port '%d' is already in use by service '%s' (%s)", pc.PublishedPort, service.Spec.Annotations.Name, service.ID)
}
}
}
if service.Endpoint != nil {
for _, pc := range service.Endpoint.Ports {
if reqPorts[pcToString(pc)] {
return grpc.Errorf(codes.InvalidArgument, "port '%d' is already in use by service %s", pc.PublishedPort, service.ID)
return grpc.Errorf(codes.InvalidArgument, "port '%d' is already in use by service '%s' (%s)", pc.PublishedPort, service.Spec.Annotations.Name, service.ID)
}
}
}
@ -243,7 +247,7 @@ func (s *Server) CreateService(ctx context.Context, request *api.CreateServiceRe
return nil, err
}
if err := s.checkPortConflicts(request.Spec); err != nil {
if err := s.checkPortConflicts(request.Spec, ""); err != nil {
return nil, err
}
@ -309,7 +313,7 @@ func (s *Server) UpdateService(ctx context.Context, request *api.UpdateServiceRe
}
if request.Spec.Endpoint != nil && !reflect.DeepEqual(request.Spec.Endpoint, service.Spec.Endpoint) {
if err := s.checkPortConflicts(request.Spec); err != nil {
if err := s.checkPortConflicts(request.Spec, request.ServiceID); err != nil {
return nil, err
}
}

View file

@ -59,7 +59,7 @@ var (
)
// Config is configuration for Dispatcher. For default you should use
// DefautConfig.
// DefaultConfig.
type Config struct {
HeartbeatPeriod time.Duration
HeartbeatEpsilon time.Duration
@ -79,13 +79,20 @@ func DefaultConfig() *Config {
}
}
// Cluster is interface which represent raft cluster. mananger/state/raft.Node
// is implenents it. This interface needed only for easier unit-testing.
// Cluster is interface which represent raft cluster. manager/state/raft.Node
// is implements it. This interface needed only for easier unit-testing.
type Cluster interface {
GetMemberlist() map[uint64]*api.RaftMember
MemoryStore() *store.MemoryStore
}
// nodeUpdate provides a new status and/or description to apply to a node
// object.
type nodeUpdate struct {
status *api.NodeStatus
description *api.NodeDescription
}
// Dispatcher is responsible for dispatching tasks and tracking agent health.
type Dispatcher struct {
mu sync.Mutex
@ -103,7 +110,14 @@ type Dispatcher struct {
taskUpdates map[string]*api.TaskStatus // indexed by task ID
taskUpdatesLock sync.Mutex
processTaskUpdatesTrigger chan struct{}
nodeUpdates map[string]nodeUpdate // indexed by node ID
nodeUpdatesLock sync.Mutex
processUpdatesTrigger chan struct{}
// for waiting for the next task/node batch update
processUpdatesLock sync.Mutex
processUpdatesCond *sync.Cond
}
// weightedPeerByNodeID is a sort wrapper for []*api.WeightedPeer
@ -118,16 +132,21 @@ func (b weightedPeerByNodeID) Swap(i, j int) { b[i], b[j] = b[j], b[i] }
// New returns Dispatcher with cluster interface(usually raft.Node).
// NOTE: each handler which does something with raft must add to Dispatcher.wg
func New(cluster Cluster, c *Config) *Dispatcher {
return &Dispatcher{
nodes: newNodeStore(c.HeartbeatPeriod, c.HeartbeatEpsilon, c.GracePeriodMultiplier, c.RateLimitPeriod),
store: cluster.MemoryStore(),
cluster: cluster,
mgrQueue: watch.NewQueue(16),
keyMgrQueue: watch.NewQueue(16),
taskUpdates: make(map[string]*api.TaskStatus),
processTaskUpdatesTrigger: make(chan struct{}, 1),
config: c,
d := &Dispatcher{
nodes: newNodeStore(c.HeartbeatPeriod, c.HeartbeatEpsilon, c.GracePeriodMultiplier, c.RateLimitPeriod),
store: cluster.MemoryStore(),
cluster: cluster,
mgrQueue: watch.NewQueue(16),
keyMgrQueue: watch.NewQueue(16),
taskUpdates: make(map[string]*api.TaskStatus),
nodeUpdates: make(map[string]nodeUpdate),
processUpdatesTrigger: make(chan struct{}, 1),
config: c,
}
d.processUpdatesCond = sync.NewCond(&d.processUpdatesLock)
return d
}
func getWeightedPeers(cluster Cluster) []*api.WeightedPeer {
@ -157,10 +176,9 @@ func (d *Dispatcher) Run(ctx context.Context) error {
d.mu.Unlock()
return fmt.Errorf("dispatcher is already running")
}
logger := log.G(ctx).WithField("module", "dispatcher")
ctx = log.WithLogger(ctx, logger)
ctx = log.WithModule(ctx, "dispatcher")
if err := d.markNodesUnknown(ctx); err != nil {
logger.Errorf(`failed to move all nodes to "unknown" state: %v`, err)
log.G(ctx).Errorf(`failed to move all nodes to "unknown" state: %v`, err)
}
configWatcher, cancel, err := store.ViewAndWatch(
d.store,
@ -214,11 +232,11 @@ func (d *Dispatcher) Run(ctx context.Context) error {
select {
case <-publishTicker.C:
publishManagers()
case <-d.processTaskUpdatesTrigger:
d.processTaskUpdates()
case <-d.processUpdatesTrigger:
d.processUpdates()
batchTimer.Reset(maxBatchInterval)
case <-batchTimer.C:
d.processTaskUpdates()
d.processUpdates()
batchTimer.Reset(maxBatchInterval)
case v := <-configWatcher:
cluster := v.(state.EventUpdateCluster)
@ -251,6 +269,14 @@ func (d *Dispatcher) Stop() error {
d.cancel()
d.mu.Unlock()
d.nodes.Clean()
d.processUpdatesLock.Lock()
// In case there are any waiters. There is no chance of any starting
// after this point, because they check if the context is canceled
// before waiting.
d.processUpdatesCond.Broadcast()
d.processUpdatesLock.Unlock()
return nil
}
@ -340,26 +366,39 @@ func (d *Dispatcher) register(ctx context.Context, nodeID string, description *a
return "", err
}
// create or update node in store
// TODO(stevvooe): Validate node specification.
var node *api.Node
err := d.store.Update(func(tx store.Tx) error {
d.store.View(func(tx store.ReadTx) {
node = store.GetNode(tx, nodeID)
if node == nil {
return ErrNodeNotFound
}
node.Description = description
node.Status = api.NodeStatus{
State: api.NodeStatus_READY,
}
return store.UpdateNode(tx, node)
})
if err != nil {
return "", err
if node == nil {
return "", ErrNodeNotFound
}
d.nodeUpdatesLock.Lock()
d.nodeUpdates[nodeID] = nodeUpdate{status: &api.NodeStatus{State: api.NodeStatus_READY}, description: description}
numUpdates := len(d.nodeUpdates)
d.nodeUpdatesLock.Unlock()
if numUpdates >= maxBatchItems {
select {
case d.processUpdatesTrigger <- struct{}{}:
case <-d.ctx.Done():
return "", d.ctx.Err()
}
}
// Wait until the node update batch happens before unblocking register.
d.processUpdatesLock.Lock()
select {
case <-d.ctx.Done():
return "", d.ctx.Err()
default:
}
d.processUpdatesCond.Wait()
d.processUpdatesLock.Unlock()
expireFunc := func() {
nodeStatus := api.NodeStatus{State: api.NodeStatus_DOWN, Message: "heartbeat failure"}
log.G(ctx).Debugf("heartbeat expiration")
@ -444,23 +483,39 @@ func (d *Dispatcher) UpdateTaskStatus(ctx context.Context, r *api.UpdateTaskStat
d.taskUpdatesLock.Unlock()
if numUpdates >= maxBatchItems {
d.processTaskUpdatesTrigger <- struct{}{}
select {
case d.processUpdatesTrigger <- struct{}{}:
case <-d.ctx.Done():
}
}
return nil, nil
}
func (d *Dispatcher) processTaskUpdates() {
func (d *Dispatcher) processUpdates() {
var (
taskUpdates map[string]*api.TaskStatus
nodeUpdates map[string]nodeUpdate
)
d.taskUpdatesLock.Lock()
if len(d.taskUpdates) == 0 {
d.taskUpdatesLock.Unlock()
return
if len(d.taskUpdates) != 0 {
taskUpdates = d.taskUpdates
d.taskUpdates = make(map[string]*api.TaskStatus)
}
taskUpdates := d.taskUpdates
d.taskUpdates = make(map[string]*api.TaskStatus)
d.taskUpdatesLock.Unlock()
d.nodeUpdatesLock.Lock()
if len(d.nodeUpdates) != 0 {
nodeUpdates = d.nodeUpdates
d.nodeUpdates = make(map[string]nodeUpdate)
}
d.nodeUpdatesLock.Unlock()
if len(taskUpdates) == 0 && len(nodeUpdates) == 0 {
return
}
log := log.G(d.ctx).WithFields(logrus.Fields{
"method": "(*Dispatcher).processTaskUpdates",
"method": "(*Dispatcher).processUpdates",
})
_, err := d.store.Batch(func(batch *store.Batch) error {
@ -494,14 +549,45 @@ func (d *Dispatcher) processTaskUpdates() {
return nil
})
if err != nil {
log.WithError(err).Error("dispatcher transaction failed")
log.WithError(err).Error("dispatcher task update transaction failed")
}
}
for nodeID, nodeUpdate := range nodeUpdates {
err := batch.Update(func(tx store.Tx) error {
logger := log.WithField("node.id", nodeID)
node := store.GetNode(tx, nodeID)
if node == nil {
logger.Errorf("node unavailable")
return nil
}
if nodeUpdate.status != nil {
node.Status = *nodeUpdate.status
}
if nodeUpdate.description != nil {
node.Description = nodeUpdate.description
}
if err := store.UpdateNode(tx, node); err != nil {
logger.WithError(err).Error("failed to update node status")
return nil
}
logger.Debug("node status updated")
return nil
})
if err != nil {
log.WithError(err).Error("dispatcher node update transaction failed")
}
}
return nil
})
if err != nil {
log.WithError(err).Error("dispatcher batch failed")
}
d.processUpdatesCond.Broadcast()
}
// Tasks is a stream of tasks state for node. Each message contains full list
@ -595,7 +681,10 @@ func (d *Dispatcher) Tasks(r *api.TasksRequest, stream api.Dispatcher_TasksServe
modificationCnt++
case state.EventUpdateTask:
if oldTask, exists := tasksMap[v.Task.ID]; exists {
if equality.TasksEqualStable(oldTask, v.Task) {
// States ASSIGNED and below are set by the orchestrator/scheduler,
// not the agent, so tasks in these states need to be sent to the
// agent even if nothing else has changed.
if equality.TasksEqualStable(oldTask, v.Task) && v.Task.Status.State > api.TaskStateAssigned {
// this update should not trigger action at agent
tasksMap[v.Task.ID] = v.Task
continue
@ -632,17 +721,17 @@ func (d *Dispatcher) nodeRemove(id string, status api.NodeStatus) error {
if err := d.isRunningLocked(); err != nil {
return err
}
// TODO(aaronl): Is it worth batching node removals?
err := d.store.Update(func(tx store.Tx) error {
node := store.GetNode(tx, id)
if node == nil {
return errors.New("node not found")
d.nodeUpdatesLock.Lock()
d.nodeUpdates[id] = nodeUpdate{status: status.Copy(), description: d.nodeUpdates[id].description}
numUpdates := len(d.nodeUpdates)
d.nodeUpdatesLock.Unlock()
if numUpdates >= maxBatchItems {
select {
case d.processUpdatesTrigger <- struct{}{}:
case <-d.ctx.Done():
}
node.Status = status
return store.UpdateNode(tx, node)
})
if err != nil {
return fmt.Errorf("failed to update node %s status to down: %v", id, err)
}
if rn := d.nodes.Delete(id); rn == nil {

View file

@ -122,7 +122,6 @@ func (k *KeyManager) updateKey(cluster *api.Cluster) error {
}
func (k *KeyManager) rotateKey(ctx context.Context) error {
log := log.G(ctx).WithField("module", "keymanager")
var (
clusters []*api.Cluster
err error
@ -132,7 +131,7 @@ func (k *KeyManager) rotateKey(ctx context.Context) error {
})
if err != nil {
log.Errorf("reading cluster config failed, %v", err)
log.G(ctx).Errorf("reading cluster config failed, %v", err)
return err
}
@ -173,7 +172,7 @@ func (k *KeyManager) rotateKey(ctx context.Context) error {
// Run starts the keymanager, it doesn't return
func (k *KeyManager) Run(ctx context.Context) error {
k.mu.Lock()
log := log.G(ctx).WithField("module", "keymanager")
ctx = log.WithModule(ctx, "keymanager")
var (
clusters []*api.Cluster
err error
@ -183,7 +182,7 @@ func (k *KeyManager) Run(ctx context.Context) error {
})
if err != nil {
log.Errorf("reading cluster config failed, %v", err)
log.G(ctx).Errorf("reading cluster config failed, %v", err)
k.mu.Unlock()
return err
}
@ -196,7 +195,7 @@ func (k *KeyManager) Run(ctx context.Context) error {
}
}
if err := k.updateKey(cluster); err != nil {
log.Errorf("store update failed %v", err)
log.G(ctx).Errorf("store update failed %v", err)
}
} else {
k.keyRing.lClock = cluster.EncryptionKeyLamportClock

View file

@ -17,6 +17,7 @@ import (
"github.com/docker/swarmkit/log"
"github.com/docker/swarmkit/manager/allocator"
"github.com/docker/swarmkit/manager/controlapi"
"github.com/docker/swarmkit/manager/controlapi/hackpicker"
"github.com/docker/swarmkit/manager/dispatcher"
"github.com/docker/swarmkit/manager/health"
"github.com/docker/swarmkit/manager/keymanager"
@ -350,11 +351,13 @@ func (m *Manager) Run(parent context.Context) error {
// creating the allocator but then use it anyway.
}
go func(keyManager *keymanager.KeyManager) {
if err := keyManager.Run(ctx); err != nil {
log.G(ctx).WithError(err).Error("keymanager failed with an error")
}
}(m.keyManager)
if m.keyManager != nil {
go func(keyManager *keymanager.KeyManager) {
if err := keyManager.Run(ctx); err != nil {
log.G(ctx).WithError(err).Error("keymanager failed with an error")
}
}(m.keyManager)
}
go func(d *dispatcher.Dispatcher) {
if err := d.Run(ctx); err != nil {
@ -385,14 +388,17 @@ func (m *Manager) Run(parent context.Context) error {
log.G(ctx).WithError(err).Error("scheduler exited with an error")
}
}(m.scheduler)
go func(taskReaper *orchestrator.TaskReaper) {
taskReaper.Run()
}(m.taskReaper)
go func(orchestrator *orchestrator.ReplicatedOrchestrator) {
if err := orchestrator.Run(ctx); err != nil {
log.G(ctx).WithError(err).Error("replicated orchestrator exited with an error")
}
}(m.replicatedOrchestrator)
go func(globalOrchestrator *orchestrator.GlobalOrchestrator) {
if err := globalOrchestrator.Run(ctx); err != nil {
log.G(ctx).WithError(err).Error("global orchestrator exited with an error")
@ -420,21 +426,34 @@ func (m *Manager) Run(parent context.Context) error {
m.scheduler.Stop()
m.scheduler = nil
m.keyManager.Stop()
m.keyManager = nil
if m.keyManager != nil {
m.keyManager.Stop()
m.keyManager = nil
}
}
m.mu.Unlock()
}
}()
proxyOpts := []grpc.DialOption{
grpc.WithBackoffMaxDelay(time.Second),
grpc.WithTimeout(5 * time.Second),
grpc.WithTransportCredentials(m.config.SecurityConfig.ClientTLSCreds),
}
cs := raftpicker.NewConnSelector(m.RaftNode, proxyOpts...)
m.connSelector = cs
// We need special connSelector for controlapi because it provides automatic
// leader tracking.
// Other APIs are using connSelector which errors out on leader change, but
// allows to react quickly to reelections.
controlAPIProxyOpts := []grpc.DialOption{
grpc.WithBackoffMaxDelay(time.Second),
grpc.WithTransportCredentials(m.config.SecurityConfig.ClientTLSCreds),
}
controlAPIConnSelector := hackpicker.NewConnSelector(m.RaftNode, controlAPIProxyOpts...)
authorize := func(ctx context.Context, roles []string) error {
// Authorize the remote roles, ensure they can only be forwarded by managers
_, err := ca.AuthorizeForwardedRoleAndOrg(ctx, roles, []string{ca.ManagerRole}, m.config.SecurityConfig.ClientTLSCreds.Organization())
@ -464,7 +483,7 @@ func (m *Manager) Run(parent context.Context) error {
// this manager rather than forwarded requests (it has no TLS
// information to put in the metadata map).
forwardAsOwnRequest := func(ctx context.Context) (context.Context, error) { return ctx, nil }
localProxyControlAPI := api.NewRaftProxyControlServer(baseControlAPI, cs, m.RaftNode, forwardAsOwnRequest)
localProxyControlAPI := api.NewRaftProxyControlServer(baseControlAPI, controlAPIConnSelector, m.RaftNode, forwardAsOwnRequest)
// Everything registered on m.server should be an authenticated
// wrapper, or a proxy wrapping an authenticated wrapper!

View file

@ -2,6 +2,7 @@ package orchestrator
import (
"container/list"
"errors"
"sync"
"time"
@ -76,6 +77,9 @@ func (r *RestartSupervisor) waitRestart(ctx context.Context, oldDelay *delayedSt
if t == nil {
return nil
}
if t.DesiredState > api.TaskStateRunning {
return nil
}
service := store.GetService(tx, t.ServiceID)
if service == nil {
return nil
@ -108,6 +112,13 @@ func (r *RestartSupervisor) Restart(ctx context.Context, tx store.Tx, cluster *a
}
r.mu.Unlock()
// Sanity check: was the task shut down already by a separate call to
// Restart? If so, we must avoid restarting it, because this will create
// an extra task. This should never happen unless there is a bug.
if t.DesiredState > api.TaskStateRunning {
return errors.New("Restart called on task that was already shut down")
}
t.DesiredState = api.TaskStateShutdown
err := store.UpdateTask(tx, &t)
if err != nil {

View file

@ -163,7 +163,7 @@ func (r *ReplicatedOrchestrator) tickTasks(ctx context.Context) {
})
if err != nil {
log.G(ctx).WithError(err).Errorf("orchestator task removal batch failed")
log.G(ctx).WithError(err).Errorf("orchestrator task removal batch failed")
}
r.restartTasks = make(map[string]struct{})

View file

@ -4,136 +4,43 @@ import (
"sync"
"time"
"golang.org/x/net/context"
"github.com/Sirupsen/logrus"
"google.golang.org/grpc"
"google.golang.org/grpc/transport"
)
// picker always picks address of cluster leader.
type picker struct {
mu sync.Mutex
addr string
raft AddrSelector
conn *grpc.Conn
stop chan struct{}
done chan struct{}
// Interface is interface to replace implementation with controlapi/hackpicker.
// TODO: it should be done cooler.
type Interface interface {
Conn() (*grpc.ClientConn, error)
Reset() error
}
func newPicker(raft AddrSelector, addr string) *picker {
return &picker{
raft: raft,
addr: addr,
stop: make(chan struct{}),
done: make(chan struct{}),
}
}
// Init does initial processing for the Picker, e.g., initiate some connections.
func (p *picker) Init(cc *grpc.ClientConn) error {
conn, err := grpc.NewConn(cc)
if err != nil {
return err
}
p.conn = conn
return nil
}
// Pick blocks until either a transport.ClientTransport is ready for the upcoming RPC
// or some error happens.
func (p *picker) Pick(ctx context.Context) (transport.ClientTransport, error) {
if err := p.updateConn(); err != nil {
return nil, err
}
return p.conn.Wait(ctx)
}
// PickAddr picks a peer address for connecting. This will be called repeated for
// connecting/reconnecting.
func (p *picker) PickAddr() (string, error) {
addr, err := p.raft.LeaderAddr()
if err != nil {
return "", err
}
p.mu.Lock()
p.addr = addr
p.mu.Unlock()
return addr, nil
}
// State returns the connectivity state of the underlying connections.
func (p *picker) State() (grpc.ConnectivityState, error) {
return p.conn.State(), nil
}
// WaitForStateChange blocks until the state changes to something other than
// the sourceState. It returns the new state or error.
func (p *picker) WaitForStateChange(ctx context.Context, sourceState grpc.ConnectivityState) (grpc.ConnectivityState, error) {
return p.conn.WaitForStateChange(ctx, sourceState)
}
// Reset the current connection and force a reconnect to another address.
func (p *picker) Reset() error {
p.conn.NotifyReset()
return nil
}
// Close closes all the Conn's owned by this Picker.
func (p *picker) Close() error {
close(p.stop)
<-p.done
return p.conn.Close()
}
func (p *picker) updateConn() error {
addr, err := p.raft.LeaderAddr()
if err != nil {
return err
}
p.mu.Lock()
if p.addr != addr {
p.addr = addr
p.Reset()
}
p.mu.Unlock()
return nil
}
func (p *picker) updateLoop() {
defer close(p.done)
ticker := time.NewTicker(1 * time.Second)
defer ticker.Stop()
for {
select {
case <-ticker.C:
p.updateConn()
case <-p.stop:
return
}
}
}
// ConnSelector is struct for obtaining connection with raftpicker.
// ConnSelector is struct for obtaining connection connected to cluster leader.
type ConnSelector struct {
mu sync.Mutex
cc *grpc.ClientConn
cluster RaftCluster
opts []grpc.DialOption
picker *picker
cc *grpc.ClientConn
addr string
stop chan struct{}
}
// NewConnSelector returns new ConnSelector with cluster and grpc.DialOpts which
// will be used for Dial on first call of Conn.
// will be used for connection create.
func NewConnSelector(cluster RaftCluster, opts ...grpc.DialOption) *ConnSelector {
return &ConnSelector{
cs := &ConnSelector{
cluster: cluster,
opts: opts,
stop: make(chan struct{}),
}
go cs.updateLoop()
return cs
}
// Conn returns *grpc.ClientConn with picker which picks raft cluster leader.
// Internal connection estabilished lazily on this call.
// Conn returns *grpc.ClientConn which connected to cluster leader.
// It can return error if cluster wasn't ready at the moment of initial call.
func (c *ConnSelector) Conn() (*grpc.ClientConn, error) {
c.mu.Lock()
@ -145,23 +52,76 @@ func (c *ConnSelector) Conn() (*grpc.ClientConn, error) {
if err != nil {
return nil, err
}
c.picker = newPicker(c.cluster, addr)
go c.picker.updateLoop()
opts := append(c.opts, grpc.WithPicker(c.picker))
cc, err := grpc.Dial(addr, opts...)
cc, err := grpc.Dial(addr, c.opts...)
if err != nil {
return nil, err
}
c.cc = cc
return c.cc, nil
c.addr = addr
return cc, nil
}
// Stop cancels tracking loop for raftpicker and closes it.
func (c *ConnSelector) Stop() {
// Reset recreates underlying connection.
func (c *ConnSelector) Reset() error {
c.mu.Lock()
defer c.mu.Unlock()
if c.picker == nil {
return
if c.cc != nil {
c.cc.Close()
c.cc = nil
}
addr, err := c.cluster.LeaderAddr()
if err != nil {
logrus.WithError(err).Errorf("error obtaining leader address")
return err
}
cc, err := grpc.Dial(addr, c.opts...)
if err != nil {
logrus.WithError(err).Errorf("error reestabilishing connection to leader")
return err
}
c.cc = cc
c.addr = addr
return nil
}
// Stop cancels updating connection loop.
func (c *ConnSelector) Stop() {
close(c.stop)
}
func (c *ConnSelector) updateConn() error {
addr, err := c.cluster.LeaderAddr()
if err != nil {
return err
}
c.mu.Lock()
defer c.mu.Unlock()
if c.addr != addr {
if c.cc != nil {
c.cc.Close()
c.cc = nil
}
conn, err := grpc.Dial(addr, c.opts...)
if err != nil {
return err
}
c.cc = conn
c.addr = addr
}
return nil
}
func (c *ConnSelector) updateLoop() {
ticker := time.NewTicker(1 * time.Second)
defer ticker.Stop()
for {
select {
case <-ticker.C:
if err := c.updateConn(); err != nil {
logrus.WithError(err).Errorf("error reestabilishing connection to leader")
}
case <-c.stop:
return
}
}
c.picker.Close()
}

View file

@ -61,8 +61,8 @@ func (s *Scheduler) setupTasksList(tx store.ReadTx) error {
tasksByNode := make(map[string]map[string]*api.Task)
for _, t := range tasks {
// Ignore all tasks that have not reached ALLOCATED
// state.
if t.Status.State < api.TaskStateAllocated {
// state and tasks that no longer consume resources.
if t.Status.State < api.TaskStateAllocated || t.Status.State > api.TaskStateRunning {
continue
}
@ -109,8 +109,31 @@ func (s *Scheduler) Run(ctx context.Context) error {
// Queue all unassigned tasks before processing changes.
s.tick(ctx)
const (
// commitDebounceGap is the amount of time to wait between
// commit events to debounce them.
commitDebounceGap = 50 * time.Millisecond
// maxLatency is a time limit on the debouncing.
maxLatency = time.Second
)
var (
debouncingStarted time.Time
commitDebounceTimer *time.Timer
commitDebounceTimeout <-chan time.Time
)
pendingChanges := 0
schedule := func() {
if len(s.preassignedTasks) > 0 {
s.processPreassignedTasks(ctx)
}
if pendingChanges > 0 {
s.tick(ctx)
pendingChanges = 0
}
}
// Watch for changes.
for {
select {
@ -131,15 +154,25 @@ func (s *Scheduler) Run(ctx context.Context) error {
case state.EventDeleteNode:
s.nodeHeap.remove(v.Node.ID)
case state.EventCommit:
if len(s.preassignedTasks) > 0 {
s.processPreassignedTasks(ctx)
}
if pendingChanges > 0 {
s.tick(ctx)
pendingChanges = 0
if commitDebounceTimer != nil {
if time.Since(debouncingStarted) > maxLatency {
commitDebounceTimer.Stop()
commitDebounceTimer = nil
commitDebounceTimeout = nil
schedule()
} else {
commitDebounceTimer.Reset(commitDebounceGap)
}
} else {
commitDebounceTimer = time.NewTimer(commitDebounceGap)
commitDebounceTimeout = commitDebounceTimer.C
debouncingStarted = time.Now()
}
}
case <-commitDebounceTimeout:
schedule()
commitDebounceTimer = nil
commitDebounceTimeout = nil
case <-s.stopChan:
return nil
}

View file

@ -87,27 +87,23 @@ type Node struct {
StateDir string
Error error
raftStore *raft.MemoryStorage
memoryStore *store.MemoryStore
Config *raft.Config
opts NewNodeOptions
reqIDGen *idutil.Generator
wait *wait
wal *wal.WAL
snapshotter *snap.Snapshotter
wasLeader bool
restored bool
isMember uint32
joinAddr string
raftStore *raft.MemoryStorage
memoryStore *store.MemoryStore
Config *raft.Config
opts NewNodeOptions
reqIDGen *idutil.Generator
wait *wait
wal *wal.WAL
snapshotter *snap.Snapshotter
restored bool
signalledLeadership uint32
isMember uint32
joinAddr string
// waitProp waits for all the proposals to be terminated before
// shutting down the node.
waitProp sync.WaitGroup
// forceNewCluster is a special flag used to recover from disaster
// scenario by pointing to an existing or backed up data directory.
forceNewCluster bool
confState raftpb.ConfState
appliedIndex uint64
snapshotIndex uint64
@ -118,7 +114,7 @@ type Node struct {
doneCh chan struct{}
// removeRaftCh notifies about node deletion from raft cluster
removeRaftCh chan struct{}
removeRaftOnce sync.Once
removeRaftFunc func()
leadershipBroadcast *events.Broadcaster
// used to coordinate shutdown
@ -192,7 +188,6 @@ func NewNode(ctx context.Context, opts NewNodeOptions) *Node {
MaxInflightMsgs: cfg.MaxInflightMsgs,
Logger: cfg.Logger,
},
forceNewCluster: opts.ForceNewCluster,
stopCh: make(chan struct{}),
doneCh: make(chan struct{}),
removeRaftCh: make(chan struct{}),
@ -215,6 +210,15 @@ func NewNode(ctx context.Context, opts NewNodeOptions) *Node {
n.reqIDGen = idutil.NewGenerator(uint16(n.Config.ID), time.Now())
n.wait = newWait()
n.removeRaftFunc = func(n *Node) func() {
var removeRaftOnce sync.Once
return func() {
removeRaftOnce.Do(func() {
close(n.removeRaftCh)
})
}
}(n)
return n
}
@ -329,6 +333,8 @@ func (n *Node) Run(ctx context.Context) error {
close(n.doneCh)
}()
wasLeader := false
for {
select {
case <-n.ticker.C():
@ -348,9 +354,11 @@ func (n *Node) Run(ctx context.Context) error {
n.Config.Logger.Error(err)
}
// Send raft messages to peers
if err := n.send(rd.Messages); err != nil {
n.Config.Logger.Error(err)
if len(rd.Messages) != 0 {
// Send raft messages to peers
if err := n.send(rd.Messages); err != nil {
n.Config.Logger.Error(err)
}
}
// Apply snapshot to memory store. The snapshot
@ -358,7 +366,7 @@ func (n *Node) Run(ctx context.Context) error {
// saveToStorage.
if !raft.IsEmptySnap(rd.Snapshot) {
// Load the snapshot data into the store
if err := n.restoreFromSnapshot(rd.Snapshot.Data, n.forceNewCluster); err != nil {
if err := n.restoreFromSnapshot(rd.Snapshot.Data, false); err != nil {
n.Config.Logger.Error(err)
}
n.appliedIndex = rd.Snapshot.Metadata.Index
@ -387,12 +395,23 @@ func (n *Node) Run(ctx context.Context) error {
// if that happens we will apply them as any
// follower would.
if rd.SoftState != nil {
if n.wasLeader && rd.SoftState.RaftState != raft.StateLeader {
n.wasLeader = false
if wasLeader && rd.SoftState.RaftState != raft.StateLeader {
wasLeader = false
n.wait.cancelAll()
n.leadershipBroadcast.Write(IsFollower)
} else if !n.wasLeader && rd.SoftState.RaftState == raft.StateLeader {
n.wasLeader = true
if atomic.LoadUint32(&n.signalledLeadership) == 1 {
atomic.StoreUint32(&n.signalledLeadership, 0)
n.leadershipBroadcast.Write(IsFollower)
}
} else if !wasLeader && rd.SoftState.RaftState == raft.StateLeader {
wasLeader = true
}
}
if wasLeader && atomic.LoadUint32(&n.signalledLeadership) != 1 {
// If all the entries in the log have become
// committed, broadcast our leadership status.
if n.caughtUp() {
atomic.StoreUint32(&n.signalledLeadership, 1)
n.leadershipBroadcast.Write(IsLeader)
}
}
@ -451,17 +470,6 @@ func (n *Node) Shutdown() {
}
}
// isShutdown indicates if node was shut down.
// This method should be called under n.stopMu to avoid races with n.stop().
func (n *Node) isShutdown() bool {
select {
case <-n.Ctx.Done():
return true
default:
return false
}
}
func (n *Node) stop() {
n.stopMu.Lock()
defer n.stopMu.Unlock()
@ -476,16 +484,18 @@ func (n *Node) stop() {
_ = member.Conn.Close()
}
}
n.Stop()
n.ticker.Stop()
if err := n.wal.Close(); err != nil {
n.Config.Logger.Errorf("raft: error closing WAL: %v", err)
}
atomic.StoreUint32(&n.isMember, 0)
// TODO(stevvooe): Handle ctx.Done()
}
// IsLeader checks if we are the leader or not
func (n *Node) IsLeader() bool {
// isLeader checks if we are the leader or not, without the protection of lock
func (n *Node) isLeader() bool {
if !n.IsMember() {
return false
}
@ -496,14 +506,43 @@ func (n *Node) IsLeader() bool {
return false
}
// Leader returns the id of the leader
func (n *Node) Leader() uint64 {
// IsLeader checks if we are the leader or not, with the protection of lock
func (n *Node) IsLeader() bool {
n.stopMu.RLock()
defer n.stopMu.RUnlock()
return n.isLeader()
}
// leader returns the id of the leader, without the protection of lock
func (n *Node) leader() uint64 {
if !n.IsMember() {
return 0
}
return n.Node.Status().Lead
}
// Leader returns the id of the leader, with the protection of lock
func (n *Node) Leader() uint64 {
n.stopMu.RLock()
defer n.stopMu.RUnlock()
return n.leader()
}
// ReadyForProposals returns true if the node has broadcasted a message
// saying that it has become the leader. This means it is ready to accept
// proposals.
func (n *Node) ReadyForProposals() bool {
return atomic.LoadUint32(&n.signalledLeadership) == 1
}
func (n *Node) caughtUp() bool {
// obnoxious function that always returns a nil error
lastIndex, _ := n.raftStore.LastIndex()
return n.appliedIndex >= lastIndex
}
// Join asks to a member of the raft to propose
// a configuration change and add us as a member thus
// beginning the log replication process. This method
@ -534,12 +573,7 @@ func (n *Node) Join(ctx context.Context, req *api.JoinRequest) (*api.JoinRespons
return nil, ErrNoRaftMember
}
if n.IsStopped() {
log.WithError(ErrStopped).Errorf(ErrStopped.Error())
return nil, ErrStopped
}
if !n.IsLeader() {
if !n.isLeader() {
return nil, ErrLostLeadership
}
@ -670,11 +704,7 @@ func (n *Node) Leave(ctx context.Context, req *api.LeaveRequest) (*api.LeaveResp
return nil, ErrNoRaftMember
}
if n.IsStopped() {
return nil, ErrStopped
}
if !n.IsLeader() {
if !n.isLeader() {
return nil, ErrLostLeadership
}
@ -717,12 +747,24 @@ func (n *Node) RemoveMember(ctx context.Context, id uint64) error {
// raft state machine with the provided message on the
// receiving node
func (n *Node) ProcessRaftMessage(ctx context.Context, msg *api.ProcessRaftMessageRequest) (*api.ProcessRaftMessageResponse, error) {
if msg == nil || msg.Message == nil {
return nil, grpc.Errorf(codes.InvalidArgument, "no message provided")
}
// Don't process the message if this comes from
// a node in the remove set
if n.cluster.IsIDRemoved(msg.Message.From) {
return nil, ErrMemberRemoved
}
if msg.Message.Type == raftpb.MsgProp {
// We don't accepted forwarded proposals. Our
// current architecture depends on only the leader
// making proposals, so in-flight proposals can be
// guaranteed not to conflict.
return nil, grpc.Errorf(codes.InvalidArgument, "proposals not accepted")
}
// can't stop the raft node while an async RPC is in progress
n.stopMu.RLock()
defer n.stopMu.RUnlock()
@ -731,10 +773,6 @@ func (n *Node) ProcessRaftMessage(ctx context.Context, msg *api.ProcessRaftMessa
return nil, ErrNoRaftMember
}
if n.IsStopped() {
return nil, ErrStopped
}
if err := n.Step(n.Ctx, *msg.Message); err != nil {
return nil, err
}
@ -772,21 +810,16 @@ func (n *Node) ResolveAddress(ctx context.Context, msg *api.ResolveAddressReques
// LeaderAddr returns address of current cluster leader.
// With this method Node satisfies raftpicker.AddrSelector interface.
func (n *Node) LeaderAddr() (string, error) {
n.stopMu.RLock()
defer n.stopMu.RUnlock()
if n.isShutdown() {
return "", fmt.Errorf("raft node is shut down")
}
ctx, cancel := context.WithTimeout(n.Ctx, 10*time.Second)
defer cancel()
if err := WaitForLeader(ctx, n); err != nil {
return "", ErrNoClusterLeader
}
if n.IsStopped() {
return "", ErrStopped
if !n.IsMember() {
return "", ErrNoRaftMember
}
ms := n.cluster.Members()
l := ms[n.Leader()]
l := ms[n.leader()]
if l == nil {
return "", ErrNoClusterLeader
}
@ -864,6 +897,13 @@ func (n *Node) ProposeValue(ctx context.Context, storeAction []*api.StoreAction,
// GetVersion returns the sequence information for the current raft round.
func (n *Node) GetVersion() *api.Version {
n.stopMu.RLock()
defer n.stopMu.RUnlock()
if !n.IsMember() {
return nil
}
status := n.Node.Status()
return &api.Version{Index: status.Commit}
}
@ -921,14 +961,6 @@ func (n *Node) IsMember() bool {
return atomic.LoadUint32(&n.isMember) == 1
}
// IsStopped checks if the raft node is stopped or not
func (n *Node) IsStopped() bool {
if n.Node == nil {
return true
}
return false
}
// canSubmitProposal defines if any more proposals
// could be submitted and processed.
func (n *Node) canSubmitProposal() bool {
@ -980,6 +1012,14 @@ func (n *Node) send(messages []raftpb.Message) error {
continue
}
if m.Type == raftpb.MsgProp {
// We don't forward proposals to the leader. Our
// current architecture depends on only the leader
// making proposals, so in-flight proposals can be
// guaranteed not to conflict.
continue
}
n.asyncTasks.Add(1)
go n.sendToMember(members, m)
}
@ -1044,15 +1084,14 @@ func (n *Node) sendToMember(members map[uint64]*membership.Member, m raftpb.Mess
_, err := conn.ProcessRaftMessage(ctx, &api.ProcessRaftMessageRequest{Message: &m})
if err != nil {
if grpc.ErrorDesc(err) == ErrMemberRemoved.Error() {
n.removeRaftOnce.Do(func() {
close(n.removeRaftCh)
})
n.removeRaftFunc()
}
if m.Type == raftpb.MsgSnap {
n.ReportSnapshot(m.To, raft.SnapshotFailure)
}
if n.IsStopped() {
panic("node is nil")
if !n.IsMember() {
// node is removed from cluster or stopped
return
}
n.ReportUnreachable(m.To)
@ -1091,7 +1130,7 @@ func (n *Node) processInternalRaftRequest(ctx context.Context, r *api.InternalRa
ch := n.wait.register(r.ID, cb)
// Do this check after calling register to avoid a race.
if !n.IsLeader() {
if atomic.LoadUint32(&n.signalledLeadership) != 1 {
n.wait.cancel(r.ID)
return nil, ErrLostLeadership
}
@ -1262,13 +1301,15 @@ func (n *Node) applyRemoveNode(cc raftpb.ConfChange) (err error) {
// a follower and the leader steps down, Campaign
// to be the leader.
if cc.NodeID == n.Leader() && !n.IsLeader() {
if cc.NodeID == n.leader() && !n.isLeader() {
if err = n.Campaign(n.Ctx); err != nil {
return err
}
}
if cc.NodeID == n.Config.ID {
n.removeRaftFunc()
// wait the commit ack to be sent before closing connection
n.asyncTasks.Wait()

View file

@ -185,7 +185,7 @@ func clip(x float64) float64 {
func (mwr *remotesWeightedRandom) observe(peer api.Peer, weight float64) {
// While we have a decent, ad-hoc approach here to weight subsequent
// observerations, we may want to look into applying forward decay:
// observations, we may want to look into applying forward decay:
//
// http://dimacs.rutgers.edu/~graham/pubs/papers/fwddecay.pdf
//