108 lines
2.6 KiB
Go
108 lines
2.6 KiB
Go
package cluster // import "github.com/docker/docker/daemon/cluster"
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import (
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"context"
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apitypes "github.com/docker/docker/api/types"
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types "github.com/docker/docker/api/types/swarm"
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"github.com/docker/docker/daemon/cluster/convert"
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"github.com/docker/docker/errdefs"
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swarmapi "github.com/moby/swarmkit/v2/api"
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"google.golang.org/grpc"
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)
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// GetNodes returns a list of all nodes known to a cluster.
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func (c *Cluster) GetNodes(options apitypes.NodeListOptions) ([]types.Node, error) {
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c.mu.RLock()
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defer c.mu.RUnlock()
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state := c.currentNodeState()
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if !state.IsActiveManager() {
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return nil, c.errNoManager(state)
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}
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filters, err := newListNodesFilters(options.Filters)
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if err != nil {
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return nil, err
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}
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ctx, cancel := c.getRequestContext()
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defer cancel()
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r, err := state.controlClient.ListNodes(
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ctx,
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&swarmapi.ListNodesRequest{Filters: filters},
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grpc.MaxCallRecvMsgSize(defaultRecvSizeForListResponse),
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)
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if err != nil {
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return nil, err
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}
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nodes := make([]types.Node, 0, len(r.Nodes))
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for _, node := range r.Nodes {
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nodes = append(nodes, convert.NodeFromGRPC(*node))
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}
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return nodes, nil
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}
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// GetNode returns a node based on an ID.
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func (c *Cluster) GetNode(input string) (types.Node, error) {
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var node *swarmapi.Node
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if err := c.lockedManagerAction(func(ctx context.Context, state nodeState) error {
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n, err := getNode(ctx, state.controlClient, input)
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if err != nil {
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return err
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}
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node = n
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return nil
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}); err != nil {
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return types.Node{}, err
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}
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return convert.NodeFromGRPC(*node), nil
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}
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// UpdateNode updates existing nodes properties.
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func (c *Cluster) UpdateNode(input string, version uint64, spec types.NodeSpec) error {
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return c.lockedManagerAction(func(_ context.Context, state nodeState) error {
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nodeSpec, err := convert.NodeSpecToGRPC(spec)
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if err != nil {
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return errdefs.InvalidParameter(err)
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}
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ctx, cancel := c.getRequestContext()
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defer cancel()
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currentNode, err := getNode(ctx, state.controlClient, input)
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if err != nil {
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return err
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}
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_, err = state.controlClient.UpdateNode(
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ctx,
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&swarmapi.UpdateNodeRequest{
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NodeID: currentNode.ID,
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Spec: &nodeSpec,
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NodeVersion: &swarmapi.Version{
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Index: version,
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},
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},
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)
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return err
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})
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}
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// RemoveNode removes a node from a cluster
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func (c *Cluster) RemoveNode(input string, force bool) error {
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return c.lockedManagerAction(func(ctx context.Context, state nodeState) error {
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node, err := getNode(ctx, state.controlClient, input)
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if err != nil {
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return err
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}
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_, err = state.controlClient.RemoveNode(ctx, &swarmapi.RemoveNodeRequest{NodeID: node.ID, Force: force})
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return err
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})
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}
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