1655 lines
48 KiB
Go
1655 lines
48 KiB
Go
package server
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import (
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"bufio"
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"bytes"
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"encoding/base64"
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"encoding/json"
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"expvar"
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"fmt"
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"io"
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"io/ioutil"
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"net"
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"net/http"
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"net/http/pprof"
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"os"
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"strconv"
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"strings"
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"syscall"
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"crypto/tls"
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"crypto/x509"
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"code.google.com/p/go.net/websocket"
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"github.com/docker/libcontainer/user"
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"github.com/gorilla/mux"
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log "github.com/Sirupsen/logrus"
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"github.com/docker/docker/api"
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"github.com/docker/docker/daemon/networkdriver/portallocator"
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"github.com/docker/docker/engine"
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"github.com/docker/docker/pkg/listenbuffer"
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"github.com/docker/docker/pkg/parsers"
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"github.com/docker/docker/pkg/stdcopy"
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"github.com/docker/docker/pkg/systemd"
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"github.com/docker/docker/pkg/version"
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"github.com/docker/docker/registry"
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"github.com/docker/docker/utils"
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)
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var (
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activationLock chan struct{}
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)
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type HttpServer struct {
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srv *http.Server
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l net.Listener
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}
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func (s *HttpServer) Serve() error {
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return s.srv.Serve(s.l)
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}
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func (s *HttpServer) Close() error {
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return s.l.Close()
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}
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type HttpApiFunc func(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error
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func hijackServer(w http.ResponseWriter) (io.ReadCloser, io.Writer, error) {
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conn, _, err := w.(http.Hijacker).Hijack()
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if err != nil {
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return nil, nil, err
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}
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// Flush the options to make sure the client sets the raw mode
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conn.Write([]byte{})
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return conn, conn, nil
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}
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func closeStreams(streams ...interface{}) {
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for _, stream := range streams {
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if tcpc, ok := stream.(interface {
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CloseWrite() error
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}); ok {
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tcpc.CloseWrite()
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} else if closer, ok := stream.(io.Closer); ok {
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closer.Close()
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}
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}
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}
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// Check to make sure request's Content-Type is application/json
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func checkForJson(r *http.Request) error {
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ct := r.Header.Get("Content-Type")
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// No Content-Type header is ok as long as there's no Body
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if ct == "" {
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if r.Body == nil || r.ContentLength == 0 {
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return nil
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}
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}
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// Otherwise it better be json
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if api.MatchesContentType(ct, "application/json") {
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return nil
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}
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return fmt.Errorf("Content-Type specified (%s) must be 'application/json'", ct)
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}
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//If we don't do this, POST method without Content-type (even with empty body) will fail
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func parseForm(r *http.Request) error {
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if r == nil {
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return nil
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}
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if err := r.ParseForm(); err != nil && !strings.HasPrefix(err.Error(), "mime:") {
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return err
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}
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return nil
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}
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func parseMultipartForm(r *http.Request) error {
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if err := r.ParseMultipartForm(4096); err != nil && !strings.HasPrefix(err.Error(), "mime:") {
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return err
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}
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return nil
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}
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func httpError(w http.ResponseWriter, err error) {
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statusCode := http.StatusInternalServerError
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// FIXME: this is brittle and should not be necessary.
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// If we need to differentiate between different possible error types, we should
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// create appropriate error types with clearly defined meaning.
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errStr := strings.ToLower(err.Error())
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if strings.Contains(errStr, "no such") {
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statusCode = http.StatusNotFound
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} else if strings.Contains(errStr, "bad parameter") {
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statusCode = http.StatusBadRequest
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} else if strings.Contains(errStr, "conflict") {
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statusCode = http.StatusConflict
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} else if strings.Contains(errStr, "impossible") {
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statusCode = http.StatusNotAcceptable
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} else if strings.Contains(errStr, "wrong login/password") {
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statusCode = http.StatusUnauthorized
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} else if strings.Contains(errStr, "hasn't been activated") {
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statusCode = http.StatusForbidden
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}
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if err != nil {
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log.Errorf("HTTP Error: statusCode=%d %s", statusCode, err.Error())
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http.Error(w, err.Error(), statusCode)
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}
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}
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func writeJSON(w http.ResponseWriter, code int, v engine.Env) error {
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w.Header().Set("Content-Type", "application/json")
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w.WriteHeader(code)
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return v.Encode(w)
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}
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func streamJSON(job *engine.Job, w http.ResponseWriter, flush bool) {
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w.Header().Set("Content-Type", "application/json")
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if flush {
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job.Stdout.Add(utils.NewWriteFlusher(w))
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} else {
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job.Stdout.Add(w)
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}
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}
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func getBoolParam(value string) (bool, error) {
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if value == "" {
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return false, nil
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}
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ret, err := strconv.ParseBool(value)
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if err != nil {
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return false, fmt.Errorf("Bad parameter")
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}
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return ret, nil
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}
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func postAuth(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
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var (
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authConfig, err = ioutil.ReadAll(r.Body)
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job = eng.Job("auth")
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stdoutBuffer = bytes.NewBuffer(nil)
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)
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if err != nil {
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return err
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}
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job.Setenv("authConfig", string(authConfig))
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job.Stdout.Add(stdoutBuffer)
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if err = job.Run(); err != nil {
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return err
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}
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if status := engine.Tail(stdoutBuffer, 1); status != "" {
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var env engine.Env
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env.Set("Status", status)
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return writeJSON(w, http.StatusOK, env)
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}
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w.WriteHeader(http.StatusNoContent)
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return nil
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}
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func getVersion(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
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w.Header().Set("Content-Type", "application/json")
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eng.ServeHTTP(w, r)
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return nil
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}
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func postContainersKill(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
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if vars == nil {
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return fmt.Errorf("Missing parameter")
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}
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if err := parseForm(r); err != nil {
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return err
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}
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job := eng.Job("kill", vars["name"])
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if sig := r.Form.Get("signal"); sig != "" {
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job.Args = append(job.Args, sig)
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}
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if err := job.Run(); err != nil {
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return err
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}
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w.WriteHeader(http.StatusNoContent)
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return nil
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}
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func postContainersPause(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
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if vars == nil {
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return fmt.Errorf("Missing parameter")
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}
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if err := parseForm(r); err != nil {
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return err
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}
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job := eng.Job("pause", vars["name"])
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if err := job.Run(); err != nil {
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return err
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}
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w.WriteHeader(http.StatusNoContent)
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return nil
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}
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func postContainersUnpause(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
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if vars == nil {
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return fmt.Errorf("Missing parameter")
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}
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if err := parseForm(r); err != nil {
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return err
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}
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job := eng.Job("unpause", vars["name"])
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if err := job.Run(); err != nil {
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return err
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}
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w.WriteHeader(http.StatusNoContent)
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return nil
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}
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func getContainersExport(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
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if vars == nil {
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return fmt.Errorf("Missing parameter")
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}
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job := eng.Job("export", vars["name"])
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job.Stdout.Add(w)
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if err := job.Run(); err != nil {
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return err
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}
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return nil
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}
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func getImagesJSON(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
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if err := parseForm(r); err != nil {
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return err
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}
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var (
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err error
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outs *engine.Table
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job = eng.Job("images")
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)
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job.Setenv("filters", r.Form.Get("filters"))
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// FIXME this parameter could just be a match filter
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job.Setenv("filter", r.Form.Get("filter"))
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job.Setenv("all", r.Form.Get("all"))
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if version.GreaterThanOrEqualTo("1.7") {
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streamJSON(job, w, false)
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} else if outs, err = job.Stdout.AddListTable(); err != nil {
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return err
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}
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if err := job.Run(); err != nil {
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return err
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}
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if version.LessThan("1.7") && outs != nil { // Convert to legacy format
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outsLegacy := engine.NewTable("Created", 0)
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for _, out := range outs.Data {
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for _, repoTag := range out.GetList("RepoTags") {
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repo, tag := parsers.ParseRepositoryTag(repoTag)
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outLegacy := &engine.Env{}
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outLegacy.Set("Repository", repo)
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outLegacy.SetJson("Tag", tag)
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outLegacy.Set("Id", out.Get("Id"))
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outLegacy.SetInt64("Created", out.GetInt64("Created"))
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outLegacy.SetInt64("Size", out.GetInt64("Size"))
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outLegacy.SetInt64("VirtualSize", out.GetInt64("VirtualSize"))
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outsLegacy.Add(outLegacy)
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}
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}
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w.Header().Set("Content-Type", "application/json")
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if _, err := outsLegacy.WriteListTo(w); err != nil {
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return err
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}
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}
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return nil
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}
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func getImagesViz(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
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if version.GreaterThan("1.6") {
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w.WriteHeader(http.StatusNotFound)
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return fmt.Errorf("This is now implemented in the client.")
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}
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eng.ServeHTTP(w, r)
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return nil
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}
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func getInfo(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
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w.Header().Set("Content-Type", "application/json")
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eng.ServeHTTP(w, r)
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return nil
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}
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func getEvents(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
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if err := parseForm(r); err != nil {
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return err
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}
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var job = eng.Job("events")
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streamJSON(job, w, true)
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job.Setenv("since", r.Form.Get("since"))
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job.Setenv("until", r.Form.Get("until"))
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job.Setenv("filters", r.Form.Get("filters"))
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return job.Run()
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}
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func getImagesHistory(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
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if vars == nil {
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return fmt.Errorf("Missing parameter")
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}
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var job = eng.Job("history", vars["name"])
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streamJSON(job, w, false)
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if err := job.Run(); err != nil {
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return err
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}
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return nil
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}
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func getContainersChanges(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
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if vars == nil {
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return fmt.Errorf("Missing parameter")
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}
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var job = eng.Job("container_changes", vars["name"])
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streamJSON(job, w, false)
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return job.Run()
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}
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func getContainersTop(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
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if version.LessThan("1.4") {
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return fmt.Errorf("top was improved a lot since 1.3, Please upgrade your docker client.")
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}
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if vars == nil {
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return fmt.Errorf("Missing parameter")
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}
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if err := parseForm(r); err != nil {
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return err
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}
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job := eng.Job("top", vars["name"], r.Form.Get("ps_args"))
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streamJSON(job, w, false)
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return job.Run()
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}
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func getContainersJSON(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
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if err := parseForm(r); err != nil {
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return err
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}
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var (
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err error
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outs *engine.Table
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job = eng.Job("containers")
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)
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job.Setenv("all", r.Form.Get("all"))
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job.Setenv("size", r.Form.Get("size"))
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job.Setenv("since", r.Form.Get("since"))
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job.Setenv("before", r.Form.Get("before"))
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job.Setenv("limit", r.Form.Get("limit"))
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job.Setenv("filters", r.Form.Get("filters"))
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|
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if version.GreaterThanOrEqualTo("1.5") {
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streamJSON(job, w, false)
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} else if outs, err = job.Stdout.AddTable(); err != nil {
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return err
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}
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if err = job.Run(); err != nil {
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return err
|
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}
|
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if version.LessThan("1.5") { // Convert to legacy format
|
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for _, out := range outs.Data {
|
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ports := engine.NewTable("", 0)
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ports.ReadListFrom([]byte(out.Get("Ports")))
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out.Set("Ports", api.DisplayablePorts(ports))
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}
|
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w.Header().Set("Content-Type", "application/json")
|
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if _, err = outs.WriteListTo(w); err != nil {
|
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return err
|
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}
|
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}
|
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return nil
|
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}
|
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|
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func getContainersStats(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
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if err := parseForm(r); err != nil {
|
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return err
|
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}
|
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if vars == nil {
|
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return fmt.Errorf("Missing parameter")
|
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}
|
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name := vars["name"]
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job := eng.Job("container_stats", name)
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streamJSON(job, w, true)
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return job.Run()
|
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}
|
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|
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func getContainersLogs(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
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if err := parseForm(r); err != nil {
|
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return err
|
|
}
|
|
if vars == nil {
|
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return fmt.Errorf("Missing parameter")
|
|
}
|
|
|
|
var (
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inspectJob = eng.Job("container_inspect", vars["name"])
|
|
logsJob = eng.Job("logs", vars["name"])
|
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c, err = inspectJob.Stdout.AddEnv()
|
|
)
|
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if err != nil {
|
|
return err
|
|
}
|
|
logsJob.Setenv("follow", r.Form.Get("follow"))
|
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logsJob.Setenv("tail", r.Form.Get("tail"))
|
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logsJob.Setenv("stdout", r.Form.Get("stdout"))
|
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logsJob.Setenv("stderr", r.Form.Get("stderr"))
|
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logsJob.Setenv("timestamps", r.Form.Get("timestamps"))
|
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// Validate args here, because we can't return not StatusOK after job.Run() call
|
|
stdout, stderr := logsJob.GetenvBool("stdout"), logsJob.GetenvBool("stderr")
|
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if !(stdout || stderr) {
|
|
return fmt.Errorf("Bad parameters: you must choose at least one stream")
|
|
}
|
|
if err = inspectJob.Run(); err != nil {
|
|
return err
|
|
}
|
|
|
|
var outStream, errStream io.Writer
|
|
outStream = utils.NewWriteFlusher(w)
|
|
|
|
if c.GetSubEnv("Config") != nil && !c.GetSubEnv("Config").GetBool("Tty") && version.GreaterThanOrEqualTo("1.6") {
|
|
errStream = stdcopy.NewStdWriter(outStream, stdcopy.Stderr)
|
|
outStream = stdcopy.NewStdWriter(outStream, stdcopy.Stdout)
|
|
} else {
|
|
errStream = outStream
|
|
}
|
|
|
|
logsJob.Stdout.Add(outStream)
|
|
logsJob.Stderr.Set(errStream)
|
|
if err := logsJob.Run(); err != nil {
|
|
fmt.Fprintf(outStream, "Error running logs job: %s\n", err)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func postImagesTag(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
|
if err := parseForm(r); err != nil {
|
|
return err
|
|
}
|
|
if vars == nil {
|
|
return fmt.Errorf("Missing parameter")
|
|
}
|
|
|
|
job := eng.Job("tag", vars["name"], r.Form.Get("repo"), r.Form.Get("tag"))
|
|
job.Setenv("force", r.Form.Get("force"))
|
|
if err := job.Run(); err != nil {
|
|
return err
|
|
}
|
|
w.WriteHeader(http.StatusCreated)
|
|
return nil
|
|
}
|
|
|
|
func postCommit(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
|
if err := parseForm(r); err != nil {
|
|
return err
|
|
}
|
|
var (
|
|
config engine.Env
|
|
env engine.Env
|
|
job = eng.Job("commit", r.Form.Get("container"))
|
|
stdoutBuffer = bytes.NewBuffer(nil)
|
|
)
|
|
|
|
if err := checkForJson(r); err != nil {
|
|
return err
|
|
}
|
|
|
|
if err := config.Decode(r.Body); err != nil {
|
|
log.Errorf("%s", err)
|
|
}
|
|
|
|
if r.FormValue("pause") == "" && version.GreaterThanOrEqualTo("1.13") {
|
|
job.Setenv("pause", "1")
|
|
} else {
|
|
job.Setenv("pause", r.FormValue("pause"))
|
|
}
|
|
|
|
job.Setenv("repo", r.Form.Get("repo"))
|
|
job.Setenv("tag", r.Form.Get("tag"))
|
|
job.Setenv("author", r.Form.Get("author"))
|
|
job.Setenv("comment", r.Form.Get("comment"))
|
|
job.SetenvList("changes", r.Form["changes"])
|
|
job.SetenvSubEnv("config", &config)
|
|
|
|
job.Stdout.Add(stdoutBuffer)
|
|
if err := job.Run(); err != nil {
|
|
return err
|
|
}
|
|
env.Set("Id", engine.Tail(stdoutBuffer, 1))
|
|
return writeJSON(w, http.StatusCreated, env)
|
|
}
|
|
|
|
// Creates an image from Pull or from Import
|
|
func postImagesCreate(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
|
if err := parseForm(r); err != nil {
|
|
return err
|
|
}
|
|
|
|
var (
|
|
image = r.Form.Get("fromImage")
|
|
repo = r.Form.Get("repo")
|
|
tag = r.Form.Get("tag")
|
|
job *engine.Job
|
|
)
|
|
authEncoded := r.Header.Get("X-Registry-Auth")
|
|
authConfig := ®istry.AuthConfig{}
|
|
if authEncoded != "" {
|
|
authJson := base64.NewDecoder(base64.URLEncoding, strings.NewReader(authEncoded))
|
|
if err := json.NewDecoder(authJson).Decode(authConfig); err != nil {
|
|
// for a pull it is not an error if no auth was given
|
|
// to increase compatibility with the existing api it is defaulting to be empty
|
|
authConfig = ®istry.AuthConfig{}
|
|
}
|
|
}
|
|
if image != "" { //pull
|
|
if tag == "" {
|
|
image, tag = parsers.ParseRepositoryTag(image)
|
|
}
|
|
metaHeaders := map[string][]string{}
|
|
for k, v := range r.Header {
|
|
if strings.HasPrefix(k, "X-Meta-") {
|
|
metaHeaders[k] = v
|
|
}
|
|
}
|
|
job = eng.Job("pull", image, tag)
|
|
job.SetenvBool("parallel", version.GreaterThan("1.3"))
|
|
job.SetenvJson("metaHeaders", metaHeaders)
|
|
job.SetenvJson("authConfig", authConfig)
|
|
} else { //import
|
|
if tag == "" {
|
|
repo, tag = parsers.ParseRepositoryTag(repo)
|
|
}
|
|
job = eng.Job("import", r.Form.Get("fromSrc"), repo, tag)
|
|
job.Stdin.Add(r.Body)
|
|
job.SetenvList("changes", r.Form["changes"])
|
|
}
|
|
|
|
if version.GreaterThan("1.0") {
|
|
job.SetenvBool("json", true)
|
|
streamJSON(job, w, true)
|
|
} else {
|
|
job.Stdout.Add(utils.NewWriteFlusher(w))
|
|
}
|
|
if err := job.Run(); err != nil {
|
|
if !job.Stdout.Used() {
|
|
return err
|
|
}
|
|
sf := utils.NewStreamFormatter(version.GreaterThan("1.0"))
|
|
w.Write(sf.FormatError(err))
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func getImagesSearch(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
|
if err := parseForm(r); err != nil {
|
|
return err
|
|
}
|
|
var (
|
|
authEncoded = r.Header.Get("X-Registry-Auth")
|
|
authConfig = ®istry.AuthConfig{}
|
|
metaHeaders = map[string][]string{}
|
|
)
|
|
|
|
if authEncoded != "" {
|
|
authJson := base64.NewDecoder(base64.URLEncoding, strings.NewReader(authEncoded))
|
|
if err := json.NewDecoder(authJson).Decode(authConfig); err != nil {
|
|
// for a search it is not an error if no auth was given
|
|
// to increase compatibility with the existing api it is defaulting to be empty
|
|
authConfig = ®istry.AuthConfig{}
|
|
}
|
|
}
|
|
for k, v := range r.Header {
|
|
if strings.HasPrefix(k, "X-Meta-") {
|
|
metaHeaders[k] = v
|
|
}
|
|
}
|
|
|
|
var job = eng.Job("search", r.Form.Get("term"))
|
|
job.SetenvJson("metaHeaders", metaHeaders)
|
|
job.SetenvJson("authConfig", authConfig)
|
|
streamJSON(job, w, false)
|
|
|
|
return job.Run()
|
|
}
|
|
|
|
func postImagesPush(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
|
if vars == nil {
|
|
return fmt.Errorf("Missing parameter")
|
|
}
|
|
|
|
metaHeaders := map[string][]string{}
|
|
for k, v := range r.Header {
|
|
if strings.HasPrefix(k, "X-Meta-") {
|
|
metaHeaders[k] = v
|
|
}
|
|
}
|
|
if err := parseForm(r); err != nil {
|
|
return err
|
|
}
|
|
authConfig := ®istry.AuthConfig{}
|
|
|
|
authEncoded := r.Header.Get("X-Registry-Auth")
|
|
if authEncoded != "" {
|
|
// the new format is to handle the authConfig as a header
|
|
authJson := base64.NewDecoder(base64.URLEncoding, strings.NewReader(authEncoded))
|
|
if err := json.NewDecoder(authJson).Decode(authConfig); err != nil {
|
|
// to increase compatibility to existing api it is defaulting to be empty
|
|
authConfig = ®istry.AuthConfig{}
|
|
}
|
|
} else {
|
|
// the old format is supported for compatibility if there was no authConfig header
|
|
if err := json.NewDecoder(r.Body).Decode(authConfig); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
job := eng.Job("push", vars["name"])
|
|
job.SetenvJson("metaHeaders", metaHeaders)
|
|
job.SetenvJson("authConfig", authConfig)
|
|
job.Setenv("tag", r.Form.Get("tag"))
|
|
if version.GreaterThan("1.0") {
|
|
job.SetenvBool("json", true)
|
|
streamJSON(job, w, true)
|
|
} else {
|
|
job.Stdout.Add(utils.NewWriteFlusher(w))
|
|
}
|
|
|
|
if err := job.Run(); err != nil {
|
|
if !job.Stdout.Used() {
|
|
return err
|
|
}
|
|
sf := utils.NewStreamFormatter(version.GreaterThan("1.0"))
|
|
w.Write(sf.FormatError(err))
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func getImagesGet(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
|
if vars == nil {
|
|
return fmt.Errorf("Missing parameter")
|
|
}
|
|
if err := parseForm(r); err != nil {
|
|
return err
|
|
}
|
|
if version.GreaterThan("1.0") {
|
|
w.Header().Set("Content-Type", "application/x-tar")
|
|
}
|
|
var job *engine.Job
|
|
if name, ok := vars["name"]; ok {
|
|
job = eng.Job("image_export", name)
|
|
} else {
|
|
job = eng.Job("image_export", r.Form["names"]...)
|
|
}
|
|
job.Stdout.Add(w)
|
|
return job.Run()
|
|
}
|
|
|
|
func postImagesLoad(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
|
job := eng.Job("load")
|
|
job.Stdin.Add(r.Body)
|
|
return job.Run()
|
|
}
|
|
|
|
func postContainersCreate(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
|
if err := parseForm(r); err != nil {
|
|
return nil
|
|
}
|
|
var (
|
|
out engine.Env
|
|
job = eng.Job("create", r.Form.Get("name"))
|
|
outWarnings []string
|
|
stdoutBuffer = bytes.NewBuffer(nil)
|
|
warnings = bytes.NewBuffer(nil)
|
|
)
|
|
|
|
if err := checkForJson(r); err != nil {
|
|
return err
|
|
}
|
|
|
|
if err := job.DecodeEnv(r.Body); err != nil {
|
|
return err
|
|
}
|
|
// Read container ID from the first line of stdout
|
|
job.Stdout.Add(stdoutBuffer)
|
|
// Read warnings from stderr
|
|
job.Stderr.Add(warnings)
|
|
if err := job.Run(); err != nil {
|
|
return err
|
|
}
|
|
// Parse warnings from stderr
|
|
scanner := bufio.NewScanner(warnings)
|
|
for scanner.Scan() {
|
|
outWarnings = append(outWarnings, scanner.Text())
|
|
}
|
|
out.Set("Id", engine.Tail(stdoutBuffer, 1))
|
|
out.SetList("Warnings", outWarnings)
|
|
|
|
return writeJSON(w, http.StatusCreated, out)
|
|
}
|
|
|
|
func postContainersRestart(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
|
if err := parseForm(r); err != nil {
|
|
return err
|
|
}
|
|
if vars == nil {
|
|
return fmt.Errorf("Missing parameter")
|
|
}
|
|
job := eng.Job("restart", vars["name"])
|
|
job.Setenv("t", r.Form.Get("t"))
|
|
if err := job.Run(); err != nil {
|
|
return err
|
|
}
|
|
w.WriteHeader(http.StatusNoContent)
|
|
return nil
|
|
}
|
|
|
|
func postContainerRename(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
|
if err := parseForm(r); err != nil {
|
|
return err
|
|
}
|
|
if vars == nil {
|
|
return fmt.Errorf("Missing parameter")
|
|
}
|
|
|
|
newName := r.URL.Query().Get("name")
|
|
job := eng.Job("container_rename", vars["name"], newName)
|
|
job.Setenv("t", r.Form.Get("t"))
|
|
if err := job.Run(); err != nil {
|
|
return err
|
|
}
|
|
w.WriteHeader(http.StatusNoContent)
|
|
return nil
|
|
}
|
|
|
|
func deleteContainers(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
|
if err := parseForm(r); err != nil {
|
|
return err
|
|
}
|
|
if vars == nil {
|
|
return fmt.Errorf("Missing parameter")
|
|
}
|
|
job := eng.Job("rm", vars["name"])
|
|
|
|
job.Setenv("forceRemove", r.Form.Get("force"))
|
|
|
|
job.Setenv("removeVolume", r.Form.Get("v"))
|
|
job.Setenv("removeLink", r.Form.Get("link"))
|
|
if err := job.Run(); err != nil {
|
|
return err
|
|
}
|
|
w.WriteHeader(http.StatusNoContent)
|
|
return nil
|
|
}
|
|
|
|
func deleteImages(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
|
if err := parseForm(r); err != nil {
|
|
return err
|
|
}
|
|
if vars == nil {
|
|
return fmt.Errorf("Missing parameter")
|
|
}
|
|
var job = eng.Job("image_delete", vars["name"])
|
|
streamJSON(job, w, false)
|
|
job.Setenv("force", r.Form.Get("force"))
|
|
job.Setenv("noprune", r.Form.Get("noprune"))
|
|
|
|
return job.Run()
|
|
}
|
|
|
|
func postContainersStart(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
|
if vars == nil {
|
|
return fmt.Errorf("Missing parameter")
|
|
}
|
|
var (
|
|
name = vars["name"]
|
|
job = eng.Job("start", name)
|
|
)
|
|
|
|
// If contentLength is -1, we can assumed chunked encoding
|
|
// or more technically that the length is unknown
|
|
// http://golang.org/src/pkg/net/http/request.go#L139
|
|
// net/http otherwise seems to swallow any headers related to chunked encoding
|
|
// including r.TransferEncoding
|
|
// allow a nil body for backwards compatibility
|
|
if r.Body != nil && (r.ContentLength > 0 || r.ContentLength == -1) {
|
|
if err := checkForJson(r); err != nil {
|
|
return err
|
|
}
|
|
|
|
if err := job.DecodeEnv(r.Body); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
if err := job.Run(); err != nil {
|
|
if err.Error() == "Container already started" {
|
|
w.WriteHeader(http.StatusNotModified)
|
|
return nil
|
|
}
|
|
return err
|
|
}
|
|
w.WriteHeader(http.StatusNoContent)
|
|
return nil
|
|
}
|
|
|
|
func postContainersStop(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
|
if err := parseForm(r); err != nil {
|
|
return err
|
|
}
|
|
if vars == nil {
|
|
return fmt.Errorf("Missing parameter")
|
|
}
|
|
job := eng.Job("stop", vars["name"])
|
|
job.Setenv("t", r.Form.Get("t"))
|
|
if err := job.Run(); err != nil {
|
|
if err.Error() == "Container already stopped" {
|
|
w.WriteHeader(http.StatusNotModified)
|
|
return nil
|
|
}
|
|
return err
|
|
}
|
|
w.WriteHeader(http.StatusNoContent)
|
|
return nil
|
|
}
|
|
|
|
func postContainersWait(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
|
if vars == nil {
|
|
return fmt.Errorf("Missing parameter")
|
|
}
|
|
var (
|
|
env engine.Env
|
|
stdoutBuffer = bytes.NewBuffer(nil)
|
|
job = eng.Job("wait", vars["name"])
|
|
)
|
|
job.Stdout.Add(stdoutBuffer)
|
|
if err := job.Run(); err != nil {
|
|
return err
|
|
}
|
|
|
|
env.Set("StatusCode", engine.Tail(stdoutBuffer, 1))
|
|
return writeJSON(w, http.StatusOK, env)
|
|
}
|
|
|
|
func postContainersResize(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
|
if err := parseForm(r); err != nil {
|
|
return err
|
|
}
|
|
if vars == nil {
|
|
return fmt.Errorf("Missing parameter")
|
|
}
|
|
if err := eng.Job("resize", vars["name"], r.Form.Get("h"), r.Form.Get("w")).Run(); err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func postContainersAttach(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
|
if err := parseForm(r); err != nil {
|
|
return err
|
|
}
|
|
if vars == nil {
|
|
return fmt.Errorf("Missing parameter")
|
|
}
|
|
|
|
var (
|
|
job = eng.Job("container_inspect", vars["name"])
|
|
c, err = job.Stdout.AddEnv()
|
|
)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if err = job.Run(); err != nil {
|
|
return err
|
|
}
|
|
|
|
inStream, outStream, err := hijackServer(w)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer closeStreams(inStream, outStream)
|
|
|
|
var errStream io.Writer
|
|
|
|
if _, ok := r.Header["Upgrade"]; ok {
|
|
fmt.Fprintf(outStream, "HTTP/1.1 101 UPGRADED\r\nContent-Type: application/vnd.docker.raw-stream\r\nConnection: Upgrade\r\nUpgrade: tcp\r\n\r\n")
|
|
} else {
|
|
fmt.Fprintf(outStream, "HTTP/1.1 200 OK\r\nContent-Type: application/vnd.docker.raw-stream\r\n\r\n")
|
|
}
|
|
|
|
if c.GetSubEnv("Config") != nil && !c.GetSubEnv("Config").GetBool("Tty") && version.GreaterThanOrEqualTo("1.6") {
|
|
errStream = stdcopy.NewStdWriter(outStream, stdcopy.Stderr)
|
|
outStream = stdcopy.NewStdWriter(outStream, stdcopy.Stdout)
|
|
} else {
|
|
errStream = outStream
|
|
}
|
|
|
|
job = eng.Job("attach", vars["name"])
|
|
job.Setenv("logs", r.Form.Get("logs"))
|
|
job.Setenv("stream", r.Form.Get("stream"))
|
|
job.Setenv("stdin", r.Form.Get("stdin"))
|
|
job.Setenv("stdout", r.Form.Get("stdout"))
|
|
job.Setenv("stderr", r.Form.Get("stderr"))
|
|
job.Stdin.Add(inStream)
|
|
job.Stdout.Add(outStream)
|
|
job.Stderr.Set(errStream)
|
|
if err := job.Run(); err != nil {
|
|
fmt.Fprintf(outStream, "Error attaching: %s\n", err)
|
|
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func wsContainersAttach(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
|
if err := parseForm(r); err != nil {
|
|
return err
|
|
}
|
|
if vars == nil {
|
|
return fmt.Errorf("Missing parameter")
|
|
}
|
|
|
|
if err := eng.Job("container_inspect", vars["name"]).Run(); err != nil {
|
|
return err
|
|
}
|
|
|
|
h := websocket.Handler(func(ws *websocket.Conn) {
|
|
defer ws.Close()
|
|
job := eng.Job("attach", vars["name"])
|
|
job.Setenv("logs", r.Form.Get("logs"))
|
|
job.Setenv("stream", r.Form.Get("stream"))
|
|
job.Setenv("stdin", r.Form.Get("stdin"))
|
|
job.Setenv("stdout", r.Form.Get("stdout"))
|
|
job.Setenv("stderr", r.Form.Get("stderr"))
|
|
job.Stdin.Add(ws)
|
|
job.Stdout.Add(ws)
|
|
job.Stderr.Set(ws)
|
|
if err := job.Run(); err != nil {
|
|
log.Errorf("Error attaching websocket: %s", err)
|
|
}
|
|
})
|
|
h.ServeHTTP(w, r)
|
|
|
|
return nil
|
|
}
|
|
|
|
func getContainersByName(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
|
if vars == nil {
|
|
return fmt.Errorf("Missing parameter")
|
|
}
|
|
var job = eng.Job("container_inspect", vars["name"])
|
|
if version.LessThan("1.12") {
|
|
job.SetenvBool("raw", true)
|
|
}
|
|
streamJSON(job, w, false)
|
|
return job.Run()
|
|
}
|
|
|
|
func getExecByID(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
|
if vars == nil {
|
|
return fmt.Errorf("Missing parameter 'id'")
|
|
}
|
|
var job = eng.Job("execInspect", vars["id"])
|
|
streamJSON(job, w, false)
|
|
return job.Run()
|
|
}
|
|
|
|
func getImagesByName(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
|
if vars == nil {
|
|
return fmt.Errorf("Missing parameter")
|
|
}
|
|
var job = eng.Job("image_inspect", vars["name"])
|
|
if version.LessThan("1.12") {
|
|
job.SetenvBool("raw", true)
|
|
}
|
|
streamJSON(job, w, false)
|
|
return job.Run()
|
|
}
|
|
|
|
func postBuild(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
|
if version.LessThan("1.3") {
|
|
return fmt.Errorf("Multipart upload for build is no longer supported. Please upgrade your docker client.")
|
|
}
|
|
var (
|
|
authEncoded = r.Header.Get("X-Registry-Auth")
|
|
authConfig = ®istry.AuthConfig{}
|
|
configFileEncoded = r.Header.Get("X-Registry-Config")
|
|
configFile = ®istry.ConfigFile{}
|
|
job = eng.Job("build")
|
|
)
|
|
|
|
// This block can be removed when API versions prior to 1.9 are deprecated.
|
|
// Both headers will be parsed and sent along to the daemon, but if a non-empty
|
|
// ConfigFile is present, any value provided as an AuthConfig directly will
|
|
// be overridden. See BuildFile::CmdFrom for details.
|
|
if version.LessThan("1.9") && authEncoded != "" {
|
|
authJson := base64.NewDecoder(base64.URLEncoding, strings.NewReader(authEncoded))
|
|
if err := json.NewDecoder(authJson).Decode(authConfig); err != nil {
|
|
// for a pull it is not an error if no auth was given
|
|
// to increase compatibility with the existing api it is defaulting to be empty
|
|
authConfig = ®istry.AuthConfig{}
|
|
}
|
|
}
|
|
|
|
if configFileEncoded != "" {
|
|
configFileJson := base64.NewDecoder(base64.URLEncoding, strings.NewReader(configFileEncoded))
|
|
if err := json.NewDecoder(configFileJson).Decode(configFile); err != nil {
|
|
// for a pull it is not an error if no auth was given
|
|
// to increase compatibility with the existing api it is defaulting to be empty
|
|
configFile = ®istry.ConfigFile{}
|
|
}
|
|
}
|
|
|
|
if version.GreaterThanOrEqualTo("1.8") {
|
|
job.SetenvBool("json", true)
|
|
streamJSON(job, w, true)
|
|
} else {
|
|
job.Stdout.Add(utils.NewWriteFlusher(w))
|
|
}
|
|
|
|
if r.FormValue("forcerm") == "1" && version.GreaterThanOrEqualTo("1.12") {
|
|
job.Setenv("rm", "1")
|
|
} else if r.FormValue("rm") == "" && version.GreaterThanOrEqualTo("1.12") {
|
|
job.Setenv("rm", "1")
|
|
} else {
|
|
job.Setenv("rm", r.FormValue("rm"))
|
|
}
|
|
if r.FormValue("pull") == "1" && version.GreaterThanOrEqualTo("1.16") {
|
|
job.Setenv("pull", "1")
|
|
}
|
|
job.Stdin.Add(r.Body)
|
|
job.Setenv("remote", r.FormValue("remote"))
|
|
job.Setenv("dockerfile", r.FormValue("dockerfile"))
|
|
job.Setenv("t", r.FormValue("t"))
|
|
job.Setenv("q", r.FormValue("q"))
|
|
job.Setenv("nocache", r.FormValue("nocache"))
|
|
job.Setenv("forcerm", r.FormValue("forcerm"))
|
|
job.SetenvJson("authConfig", authConfig)
|
|
job.SetenvJson("configFile", configFile)
|
|
|
|
if err := job.Run(); err != nil {
|
|
if !job.Stdout.Used() {
|
|
return err
|
|
}
|
|
sf := utils.NewStreamFormatter(version.GreaterThanOrEqualTo("1.8"))
|
|
w.Write(sf.FormatError(err))
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func postContainersCopy(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
|
if vars == nil {
|
|
return fmt.Errorf("Missing parameter")
|
|
}
|
|
|
|
var copyData engine.Env
|
|
|
|
if err := checkForJson(r); err != nil {
|
|
return err
|
|
}
|
|
|
|
if err := copyData.Decode(r.Body); err != nil {
|
|
return err
|
|
}
|
|
|
|
if copyData.Get("Resource") == "" {
|
|
return fmt.Errorf("Path cannot be empty")
|
|
}
|
|
|
|
origResource := copyData.Get("Resource")
|
|
|
|
if copyData.Get("Resource")[0] == '/' {
|
|
copyData.Set("Resource", copyData.Get("Resource")[1:])
|
|
}
|
|
|
|
job := eng.Job("container_copy", vars["name"], copyData.Get("Resource"))
|
|
job.Stdout.Add(w)
|
|
w.Header().Set("Content-Type", "application/x-tar")
|
|
if err := job.Run(); err != nil {
|
|
log.Errorf("%s", err.Error())
|
|
if strings.Contains(strings.ToLower(err.Error()), "no such id") {
|
|
w.WriteHeader(http.StatusNotFound)
|
|
} else if strings.Contains(err.Error(), "no such file or directory") {
|
|
return fmt.Errorf("Could not find the file %s in container %s", origResource, vars["name"])
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func postContainerExecCreate(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
|
if err := parseForm(r); err != nil {
|
|
return nil
|
|
}
|
|
var (
|
|
out engine.Env
|
|
name = vars["name"]
|
|
job = eng.Job("execCreate", name)
|
|
stdoutBuffer = bytes.NewBuffer(nil)
|
|
)
|
|
|
|
if err := job.DecodeEnv(r.Body); err != nil {
|
|
return err
|
|
}
|
|
|
|
job.Stdout.Add(stdoutBuffer)
|
|
// Register an instance of Exec in container.
|
|
if err := job.Run(); err != nil {
|
|
fmt.Fprintf(os.Stderr, "Error setting up exec command in container %s: %s\n", name, err)
|
|
return err
|
|
}
|
|
// Return the ID
|
|
out.Set("Id", engine.Tail(stdoutBuffer, 1))
|
|
|
|
return writeJSON(w, http.StatusCreated, out)
|
|
}
|
|
|
|
// TODO(vishh): Refactor the code to avoid having to specify stream config as part of both create and start.
|
|
func postContainerExecStart(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
|
if err := parseForm(r); err != nil {
|
|
return nil
|
|
}
|
|
var (
|
|
name = vars["name"]
|
|
job = eng.Job("execStart", name)
|
|
errOut io.Writer = os.Stderr
|
|
)
|
|
|
|
if err := job.DecodeEnv(r.Body); err != nil {
|
|
return err
|
|
}
|
|
if !job.GetenvBool("Detach") {
|
|
// Setting up the streaming http interface.
|
|
inStream, outStream, err := hijackServer(w)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer closeStreams(inStream, outStream)
|
|
|
|
var errStream io.Writer
|
|
|
|
if _, ok := r.Header["Upgrade"]; ok {
|
|
fmt.Fprintf(outStream, "HTTP/1.1 101 UPGRADED\r\nContent-Type: application/vnd.docker.raw-stream\r\nConnection: Upgrade\r\nUpgrade: tcp\r\n\r\n")
|
|
} else {
|
|
fmt.Fprintf(outStream, "HTTP/1.1 200 OK\r\nContent-Type: application/vnd.docker.raw-stream\r\n\r\n")
|
|
}
|
|
|
|
if !job.GetenvBool("Tty") && version.GreaterThanOrEqualTo("1.6") {
|
|
errStream = stdcopy.NewStdWriter(outStream, stdcopy.Stderr)
|
|
outStream = stdcopy.NewStdWriter(outStream, stdcopy.Stdout)
|
|
} else {
|
|
errStream = outStream
|
|
}
|
|
job.Stdin.Add(inStream)
|
|
job.Stdout.Add(outStream)
|
|
job.Stderr.Set(errStream)
|
|
errOut = outStream
|
|
}
|
|
// Now run the user process in container.
|
|
job.SetCloseIO(false)
|
|
if err := job.Run(); err != nil {
|
|
fmt.Fprintf(errOut, "Error starting exec command in container %s: %s\n", name, err)
|
|
return err
|
|
}
|
|
w.WriteHeader(http.StatusNoContent)
|
|
|
|
return nil
|
|
}
|
|
|
|
func postContainerExecResize(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
|
if err := parseForm(r); err != nil {
|
|
return err
|
|
}
|
|
if vars == nil {
|
|
return fmt.Errorf("Missing parameter")
|
|
}
|
|
if err := eng.Job("execResize", vars["name"], r.Form.Get("h"), r.Form.Get("w")).Run(); err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func optionsHandler(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
|
w.WriteHeader(http.StatusOK)
|
|
return nil
|
|
}
|
|
func writeCorsHeaders(w http.ResponseWriter, r *http.Request) {
|
|
w.Header().Add("Access-Control-Allow-Origin", "*")
|
|
w.Header().Add("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept, X-Registry-Auth")
|
|
w.Header().Add("Access-Control-Allow-Methods", "GET, POST, DELETE, PUT, OPTIONS")
|
|
}
|
|
|
|
func ping(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
|
|
_, err := w.Write([]byte{'O', 'K'})
|
|
return err
|
|
}
|
|
|
|
func makeHttpHandler(eng *engine.Engine, logging bool, localMethod string, localRoute string, handlerFunc HttpApiFunc, enableCors bool, dockerVersion version.Version) http.HandlerFunc {
|
|
return func(w http.ResponseWriter, r *http.Request) {
|
|
// log the request
|
|
log.Debugf("Calling %s %s", localMethod, localRoute)
|
|
|
|
if logging {
|
|
log.Infof("%s %s", r.Method, r.RequestURI)
|
|
}
|
|
|
|
if strings.Contains(r.Header.Get("User-Agent"), "Docker-Client/") {
|
|
userAgent := strings.Split(r.Header.Get("User-Agent"), "/")
|
|
if len(userAgent) == 2 && !dockerVersion.Equal(version.Version(userAgent[1])) {
|
|
log.Debugf("Warning: client and server don't have the same version (client: %s, server: %s)", userAgent[1], dockerVersion)
|
|
}
|
|
}
|
|
version := version.Version(mux.Vars(r)["version"])
|
|
if version == "" {
|
|
version = api.APIVERSION
|
|
}
|
|
if enableCors {
|
|
writeCorsHeaders(w, r)
|
|
}
|
|
|
|
if version.GreaterThan(api.APIVERSION) {
|
|
http.Error(w, fmt.Errorf("client and server don't have same version (client : %s, server: %s)", version, api.APIVERSION).Error(), http.StatusNotFound)
|
|
return
|
|
}
|
|
|
|
if err := handlerFunc(eng, version, w, r, mux.Vars(r)); err != nil {
|
|
log.Errorf("Handler for %s %s returned error: %s", localMethod, localRoute, err)
|
|
httpError(w, err)
|
|
}
|
|
}
|
|
}
|
|
|
|
// Replicated from expvar.go as not public.
|
|
func expvarHandler(w http.ResponseWriter, r *http.Request) {
|
|
w.Header().Set("Content-Type", "application/json; charset=utf-8")
|
|
fmt.Fprintf(w, "{\n")
|
|
first := true
|
|
expvar.Do(func(kv expvar.KeyValue) {
|
|
if !first {
|
|
fmt.Fprintf(w, ",\n")
|
|
}
|
|
first = false
|
|
fmt.Fprintf(w, "%q: %s", kv.Key, kv.Value)
|
|
})
|
|
fmt.Fprintf(w, "\n}\n")
|
|
}
|
|
|
|
func AttachProfiler(router *mux.Router) {
|
|
router.HandleFunc("/debug/vars", expvarHandler)
|
|
router.HandleFunc("/debug/pprof/", pprof.Index)
|
|
router.HandleFunc("/debug/pprof/cmdline", pprof.Cmdline)
|
|
router.HandleFunc("/debug/pprof/profile", pprof.Profile)
|
|
router.HandleFunc("/debug/pprof/symbol", pprof.Symbol)
|
|
router.HandleFunc("/debug/pprof/block", pprof.Handler("block").ServeHTTP)
|
|
router.HandleFunc("/debug/pprof/heap", pprof.Handler("heap").ServeHTTP)
|
|
router.HandleFunc("/debug/pprof/goroutine", pprof.Handler("goroutine").ServeHTTP)
|
|
router.HandleFunc("/debug/pprof/threadcreate", pprof.Handler("threadcreate").ServeHTTP)
|
|
}
|
|
|
|
func createRouter(eng *engine.Engine, logging, enableCors bool, dockerVersion string) *mux.Router {
|
|
r := mux.NewRouter()
|
|
if os.Getenv("DEBUG") != "" {
|
|
AttachProfiler(r)
|
|
}
|
|
m := map[string]map[string]HttpApiFunc{
|
|
"GET": {
|
|
"/_ping": ping,
|
|
"/events": getEvents,
|
|
"/info": getInfo,
|
|
"/version": getVersion,
|
|
"/images/json": getImagesJSON,
|
|
"/images/viz": getImagesViz,
|
|
"/images/search": getImagesSearch,
|
|
"/images/get": getImagesGet,
|
|
"/images/{name:.*}/get": getImagesGet,
|
|
"/images/{name:.*}/history": getImagesHistory,
|
|
"/images/{name:.*}/json": getImagesByName,
|
|
"/containers/ps": getContainersJSON,
|
|
"/containers/json": getContainersJSON,
|
|
"/containers/{name:.*}/export": getContainersExport,
|
|
"/containers/{name:.*}/changes": getContainersChanges,
|
|
"/containers/{name:.*}/json": getContainersByName,
|
|
"/containers/{name:.*}/top": getContainersTop,
|
|
"/containers/{name:.*}/logs": getContainersLogs,
|
|
"/containers/{name:.*}/stats": getContainersStats,
|
|
"/containers/{name:.*}/attach/ws": wsContainersAttach,
|
|
"/exec/{id:.*}/json": getExecByID,
|
|
},
|
|
"POST": {
|
|
"/auth": postAuth,
|
|
"/commit": postCommit,
|
|
"/build": postBuild,
|
|
"/images/create": postImagesCreate,
|
|
"/images/load": postImagesLoad,
|
|
"/images/{name:.*}/push": postImagesPush,
|
|
"/images/{name:.*}/tag": postImagesTag,
|
|
"/containers/create": postContainersCreate,
|
|
"/containers/{name:.*}/kill": postContainersKill,
|
|
"/containers/{name:.*}/pause": postContainersPause,
|
|
"/containers/{name:.*}/unpause": postContainersUnpause,
|
|
"/containers/{name:.*}/restart": postContainersRestart,
|
|
"/containers/{name:.*}/start": postContainersStart,
|
|
"/containers/{name:.*}/stop": postContainersStop,
|
|
"/containers/{name:.*}/wait": postContainersWait,
|
|
"/containers/{name:.*}/resize": postContainersResize,
|
|
"/containers/{name:.*}/attach": postContainersAttach,
|
|
"/containers/{name:.*}/copy": postContainersCopy,
|
|
"/containers/{name:.*}/exec": postContainerExecCreate,
|
|
"/exec/{name:.*}/start": postContainerExecStart,
|
|
"/exec/{name:.*}/resize": postContainerExecResize,
|
|
"/containers/{name:.*}/rename": postContainerRename,
|
|
},
|
|
"DELETE": {
|
|
"/containers/{name:.*}": deleteContainers,
|
|
"/images/{name:.*}": deleteImages,
|
|
},
|
|
"OPTIONS": {
|
|
"": optionsHandler,
|
|
},
|
|
}
|
|
|
|
for method, routes := range m {
|
|
for route, fct := range routes {
|
|
log.Debugf("Registering %s, %s", method, route)
|
|
// NOTE: scope issue, make sure the variables are local and won't be changed
|
|
localRoute := route
|
|
localFct := fct
|
|
localMethod := method
|
|
|
|
// build the handler function
|
|
f := makeHttpHandler(eng, logging, localMethod, localRoute, localFct, enableCors, version.Version(dockerVersion))
|
|
|
|
// add the new route
|
|
if localRoute == "" {
|
|
r.Methods(localMethod).HandlerFunc(f)
|
|
} else {
|
|
r.Path("/v{version:[0-9.]+}" + localRoute).Methods(localMethod).HandlerFunc(f)
|
|
r.Path(localRoute).Methods(localMethod).HandlerFunc(f)
|
|
}
|
|
}
|
|
}
|
|
|
|
return r
|
|
}
|
|
|
|
// ServeRequest processes a single http request to the docker remote api.
|
|
// FIXME: refactor this to be part of Server and not require re-creating a new
|
|
// router each time. This requires first moving ListenAndServe into Server.
|
|
func ServeRequest(eng *engine.Engine, apiversion version.Version, w http.ResponseWriter, req *http.Request) {
|
|
router := createRouter(eng, false, true, "")
|
|
// Insert APIVERSION into the request as a convenience
|
|
req.URL.Path = fmt.Sprintf("/v%s%s", apiversion, req.URL.Path)
|
|
router.ServeHTTP(w, req)
|
|
}
|
|
|
|
// serveFd creates an http.Server and sets it up to serve given a socket activated
|
|
// argument.
|
|
func serveFd(addr string, job *engine.Job) error {
|
|
r := createRouter(job.Eng, job.GetenvBool("Logging"), job.GetenvBool("EnableCors"), job.Getenv("Version"))
|
|
|
|
ls, e := systemd.ListenFD(addr)
|
|
if e != nil {
|
|
return e
|
|
}
|
|
|
|
chErrors := make(chan error, len(ls))
|
|
|
|
// We don't want to start serving on these sockets until the
|
|
// daemon is initialized and installed. Otherwise required handlers
|
|
// won't be ready.
|
|
<-activationLock
|
|
|
|
// Since ListenFD will return one or more sockets we have
|
|
// to create a go func to spawn off multiple serves
|
|
for i := range ls {
|
|
listener := ls[i]
|
|
go func() {
|
|
httpSrv := http.Server{Handler: r}
|
|
chErrors <- httpSrv.Serve(listener)
|
|
}()
|
|
}
|
|
|
|
for i := 0; i < len(ls); i++ {
|
|
err := <-chErrors
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func lookupGidByName(nameOrGid string) (int, error) {
|
|
groupFile, err := user.GetGroupPath()
|
|
if err != nil {
|
|
return -1, err
|
|
}
|
|
groups, err := user.ParseGroupFileFilter(groupFile, func(g user.Group) bool {
|
|
return g.Name == nameOrGid || strconv.Itoa(g.Gid) == nameOrGid
|
|
})
|
|
if err != nil {
|
|
return -1, err
|
|
}
|
|
if groups != nil && len(groups) > 0 {
|
|
return groups[0].Gid, nil
|
|
}
|
|
return -1, fmt.Errorf("Group %s not found", nameOrGid)
|
|
}
|
|
|
|
func setupTls(cert, key, ca string, l net.Listener) (net.Listener, error) {
|
|
tlsCert, err := tls.LoadX509KeyPair(cert, key)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Couldn't load X509 key pair (%s, %s): %s. Key encrypted?",
|
|
cert, key, err)
|
|
}
|
|
tlsConfig := &tls.Config{
|
|
NextProtos: []string{"http/1.1"},
|
|
Certificates: []tls.Certificate{tlsCert},
|
|
// Avoid fallback on insecure SSL protocols
|
|
MinVersion: tls.VersionTLS10,
|
|
}
|
|
|
|
if ca != "" {
|
|
certPool := x509.NewCertPool()
|
|
file, err := ioutil.ReadFile(ca)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Couldn't read CA certificate: %s", err)
|
|
}
|
|
certPool.AppendCertsFromPEM(file)
|
|
tlsConfig.ClientAuth = tls.RequireAndVerifyClientCert
|
|
tlsConfig.ClientCAs = certPool
|
|
}
|
|
|
|
return tls.NewListener(l, tlsConfig), nil
|
|
}
|
|
|
|
func newListener(proto, addr string, bufferRequests bool) (net.Listener, error) {
|
|
if bufferRequests {
|
|
return listenbuffer.NewListenBuffer(proto, addr, activationLock)
|
|
}
|
|
|
|
return net.Listen(proto, addr)
|
|
}
|
|
|
|
func changeGroup(addr string, nameOrGid string) error {
|
|
gid, err := lookupGidByName(nameOrGid)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
log.Debugf("%s group found. gid: %d", nameOrGid, gid)
|
|
return os.Chown(addr, 0, gid)
|
|
}
|
|
|
|
func setSocketGroup(addr, group string) error {
|
|
if group == "" {
|
|
return nil
|
|
}
|
|
|
|
if err := changeGroup(addr, group); err != nil {
|
|
if group != "docker" {
|
|
return err
|
|
}
|
|
log.Debugf("Warning: could not chgrp %s to docker: %v", addr, err)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func setupUnixHttp(addr string, job *engine.Job) (*HttpServer, error) {
|
|
r := createRouter(job.Eng, job.GetenvBool("Logging"), job.GetenvBool("EnableCors"), job.Getenv("Version"))
|
|
|
|
if err := syscall.Unlink(addr); err != nil && !os.IsNotExist(err) {
|
|
return nil, err
|
|
}
|
|
mask := syscall.Umask(0777)
|
|
defer syscall.Umask(mask)
|
|
|
|
l, err := newListener("unix", addr, job.GetenvBool("BufferRequests"))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if err := setSocketGroup(addr, job.Getenv("SocketGroup")); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if err := os.Chmod(addr, 0660); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return &HttpServer{&http.Server{Addr: addr, Handler: r}, l}, nil
|
|
}
|
|
|
|
func allocateDaemonPort(addr string) error {
|
|
host, port, err := net.SplitHostPort(addr)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
intPort, err := strconv.Atoi(port)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
var hostIPs []net.IP
|
|
if parsedIP := net.ParseIP(host); parsedIP != nil {
|
|
hostIPs = append(hostIPs, parsedIP)
|
|
} else if hostIPs, err = net.LookupIP(host); err != nil {
|
|
return fmt.Errorf("failed to lookup %s address in host specification", host)
|
|
}
|
|
|
|
for _, hostIP := range hostIPs {
|
|
if _, err := portallocator.RequestPort(hostIP, "tcp", intPort); err != nil {
|
|
return fmt.Errorf("failed to allocate daemon listening port %d (err: %v)", intPort, err)
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func setupTcpHttp(addr string, job *engine.Job) (*HttpServer, error) {
|
|
if !job.GetenvBool("TlsVerify") {
|
|
log.Infof("/!\\ DON'T BIND ON ANY IP ADDRESS WITHOUT setting -tlsverify IF YOU DON'T KNOW WHAT YOU'RE DOING /!\\")
|
|
}
|
|
|
|
r := createRouter(job.Eng, job.GetenvBool("Logging"), job.GetenvBool("EnableCors"), job.Getenv("Version"))
|
|
|
|
l, err := newListener("tcp", addr, job.GetenvBool("BufferRequests"))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if err := allocateDaemonPort(addr); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if job.GetenvBool("Tls") || job.GetenvBool("TlsVerify") {
|
|
var tlsCa string
|
|
if job.GetenvBool("TlsVerify") {
|
|
tlsCa = job.Getenv("TlsCa")
|
|
}
|
|
l, err = setupTls(job.Getenv("TlsCert"), job.Getenv("TlsKey"), tlsCa, l)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
return &HttpServer{&http.Server{Addr: addr, Handler: r}, l}, nil
|
|
}
|
|
|
|
// NewServer sets up the required Server and does protocol specific checking.
|
|
func NewServer(proto, addr string, job *engine.Job) (Server, error) {
|
|
// Basic error and sanity checking
|
|
switch proto {
|
|
case "fd":
|
|
return nil, serveFd(addr, job)
|
|
case "tcp":
|
|
return setupTcpHttp(addr, job)
|
|
case "unix":
|
|
return setupUnixHttp(addr, job)
|
|
default:
|
|
return nil, fmt.Errorf("Invalid protocol format.")
|
|
}
|
|
}
|
|
|
|
type Server interface {
|
|
Serve() error
|
|
Close() error
|
|
}
|
|
|
|
// ServeApi loops through all of the protocols sent in to docker and spawns
|
|
// off a go routine to setup a serving http.Server for each.
|
|
func ServeApi(job *engine.Job) engine.Status {
|
|
if len(job.Args) == 0 {
|
|
return job.Errorf("usage: %s PROTO://ADDR [PROTO://ADDR ...]", job.Name)
|
|
}
|
|
var (
|
|
protoAddrs = job.Args
|
|
chErrors = make(chan error, len(protoAddrs))
|
|
)
|
|
activationLock = make(chan struct{})
|
|
|
|
for _, protoAddr := range protoAddrs {
|
|
protoAddrParts := strings.SplitN(protoAddr, "://", 2)
|
|
if len(protoAddrParts) != 2 {
|
|
return job.Errorf("usage: %s PROTO://ADDR [PROTO://ADDR ...]", job.Name)
|
|
}
|
|
go func() {
|
|
log.Infof("Listening for HTTP on %s (%s)", protoAddrParts[0], protoAddrParts[1])
|
|
srv, err := NewServer(protoAddrParts[0], protoAddrParts[1], job)
|
|
if err != nil {
|
|
chErrors <- err
|
|
return
|
|
}
|
|
chErrors <- srv.Serve()
|
|
}()
|
|
}
|
|
|
|
for i := 0; i < len(protoAddrs); i++ {
|
|
err := <-chErrors
|
|
if err != nil {
|
|
return job.Error(err)
|
|
}
|
|
}
|
|
|
|
return engine.StatusOK
|
|
}
|
|
|
|
func AcceptConnections(job *engine.Job) engine.Status {
|
|
// Tell the init daemon we are accepting requests
|
|
go systemd.SdNotify("READY=1")
|
|
|
|
// close the lock so the listeners start accepting connections
|
|
if activationLock != nil {
|
|
close(activationLock)
|
|
}
|
|
|
|
return engine.StatusOK
|
|
}
|