diff options
Diffstat (limited to 'pkg')
-rw-r--r-- | pkg/api/handlers/compat/exec.go | 104 | ||||
-rw-r--r-- | pkg/api/handlers/types.go | 8 | ||||
-rw-r--r-- | pkg/api/server/register_exec.go | 16 |
3 files changed, 120 insertions, 8 deletions
diff --git a/pkg/api/handlers/compat/exec.go b/pkg/api/handlers/compat/exec.go new file mode 100644 index 000000000..1fa50d23b --- /dev/null +++ b/pkg/api/handlers/compat/exec.go @@ -0,0 +1,104 @@ +package compat + +import ( + "encoding/json" + "fmt" + "net/http" + "strings" + + "github.com/containers/libpod/libpod" + "github.com/containers/libpod/libpod/define" + "github.com/containers/libpod/pkg/api/handlers" + "github.com/containers/libpod/pkg/api/handlers/utils" + "github.com/gorilla/mux" + "github.com/pkg/errors" +) + +// ExecCreateHandler creates an exec session for a given container. +func ExecCreateHandler(w http.ResponseWriter, r *http.Request) { + runtime := r.Context().Value("runtime").(*libpod.Runtime) + + input := new(handlers.ExecCreateConfig) + if err := json.NewDecoder(r.Body).Decode(&input); err != nil { + utils.InternalServerError(w, errors.Wrapf(err, "error decoding request body as JSON")) + return + } + + ctrName := utils.GetName(r) + ctr, err := runtime.LookupContainer(ctrName) + if err != nil { + utils.ContainerNotFound(w, ctrName, err) + return + } + + libpodConfig := new(libpod.ExecConfig) + libpodConfig.Command = input.Cmd + libpodConfig.Terminal = input.Tty + libpodConfig.AttachStdin = input.AttachStdin + libpodConfig.AttachStderr = input.AttachStderr + libpodConfig.AttachStdout = input.AttachStdout + if input.DetachKeys != "" { + libpodConfig.DetachKeys = &input.DetachKeys + } + libpodConfig.Environment = make(map[string]string) + for _, envStr := range input.Env { + split := strings.SplitN(envStr, "=", 2) + if len(split) != 2 { + utils.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest, errors.Errorf("environment variable %q badly formed, must be key=value", envStr)) + return + } + libpodConfig.Environment[split[0]] = split[1] + } + libpodConfig.WorkDir = input.WorkingDir + libpodConfig.Privileged = input.Privileged + libpodConfig.User = input.User + + sessID, err := ctr.ExecCreate(libpodConfig) + if err != nil { + if errors.Cause(err) == define.ErrCtrStateInvalid { + // Check if the container is paused. If so, return a 409 + state, err := ctr.State() + if err == nil { + // Ignore the error != nil case. We're already + // throwing an InternalServerError below. + if state == define.ContainerStatePaused { + utils.Error(w, "Container is paused", http.StatusConflict, errors.Errorf("cannot create exec session as container %s is paused", ctr.ID())) + return + } + } + } + utils.InternalServerError(w, err) + return + } + + resp := new(handlers.ExecCreateResponse) + resp.ID = sessID + + utils.WriteResponse(w, http.StatusCreated, resp) +} + +// ExecInspectHandler inspects a given exec session. +func ExecInspectHandler(w http.ResponseWriter, r *http.Request) { + runtime := r.Context().Value("runtime").(*libpod.Runtime) + + sessionID := mux.Vars(r)["id"] + sessionCtr, err := runtime.GetExecSessionContainer(sessionID) + if err != nil { + utils.Error(w, fmt.Sprintf("No such exec session: %s", sessionID), http.StatusNotFound, err) + return + } + + session, err := sessionCtr.ExecSession(sessionID) + if err != nil { + utils.InternalServerError(w, errors.Wrapf(err, "error retrieving exec session %s from container %s", sessionID, sessionCtr.ID())) + return + } + + inspectOut, err := session.Inspect() + if err != nil { + utils.InternalServerError(w, err) + return + } + + utils.WriteResponse(w, http.StatusOK, inspectOut) +} diff --git a/pkg/api/handlers/types.go b/pkg/api/handlers/types.go index c6b70251b..6fa776d0f 100644 --- a/pkg/api/handlers/types.go +++ b/pkg/api/handlers/types.go @@ -177,6 +177,14 @@ type ImageTreeResponse struct { Layers []ImageLayer `json:"layers"` } +type ExecCreateConfig struct { + docker.ExecConfig +} + +type ExecCreateResponse struct { + docker.IDResponse +} + func EventToApiEvent(e *events.Event) *Event { return &Event{dockerEvents.Message{ Type: e.Type.String(), diff --git a/pkg/api/server/register_exec.go b/pkg/api/server/register_exec.go index d27d21a04..71fb50307 100644 --- a/pkg/api/server/register_exec.go +++ b/pkg/api/server/register_exec.go @@ -8,7 +8,7 @@ import ( ) func (s *APIServer) registerExecHandlers(r *mux.Router) error { - // swagger:operation POST /containers/{name}/create compat createExec + // swagger:operation POST /containers/{name}/exec compat createExec // --- // tags: // - exec (compat) @@ -74,9 +74,9 @@ func (s *APIServer) registerExecHandlers(r *mux.Router) error { // description: container is paused // 500: // $ref: "#/responses/InternalError" - r.Handle(VersionedPath("/containers/{name}/create"), s.APIHandler(compat.UnsupportedHandler)).Methods(http.MethodPost) + r.Handle(VersionedPath("/containers/{name}/exec"), s.APIHandler(compat.ExecCreateHandler)).Methods(http.MethodPost) // Added non version path to URI to support docker non versioned paths - r.Handle("/containers/{name}/create", s.APIHandler(compat.UnsupportedHandler)).Methods(http.MethodPost) + r.Handle("/containers/{name}/exec", s.APIHandler(compat.ExecCreateHandler)).Methods(http.MethodPost) // swagger:operation POST /exec/{id}/start compat startExec // --- // tags: @@ -169,15 +169,15 @@ func (s *APIServer) registerExecHandlers(r *mux.Router) error { // $ref: "#/responses/NoSuchExecInstance" // 500: // $ref: "#/responses/InternalError" - r.Handle(VersionedPath("/exec/{id}/json"), s.APIHandler(compat.UnsupportedHandler)).Methods(http.MethodGet) + r.Handle(VersionedPath("/exec/{id}/json"), s.APIHandler(compat.ExecInspectHandler)).Methods(http.MethodGet) // Added non version path to URI to support docker non versioned paths - r.Handle("/exec/{id}/json", s.APIHandler(compat.UnsupportedHandler)).Methods(http.MethodGet) + r.Handle("/exec/{id}/json", s.APIHandler(compat.ExecInspectHandler)).Methods(http.MethodGet) /* libpod api follows */ - // swagger:operation POST /libpod/containers/{name}/create libpod libpodCreateExec + // swagger:operation POST /libpod/containers/{name}/exec libpod libpodCreateExec // --- // tags: // - exec @@ -243,7 +243,7 @@ func (s *APIServer) registerExecHandlers(r *mux.Router) error { // description: container is paused // 500: // $ref: "#/responses/InternalError" - r.Handle(VersionedPath("/libpod/containers/{name}/create"), s.APIHandler(compat.UnsupportedHandler)).Methods(http.MethodPost) + r.Handle(VersionedPath("/libpod/containers/{name}/exec"), s.APIHandler(compat.ExecCreateHandler)).Methods(http.MethodPost) // swagger:operation POST /libpod/exec/{id}/start libpod libpodStartExec // --- // tags: @@ -332,6 +332,6 @@ func (s *APIServer) registerExecHandlers(r *mux.Router) error { // $ref: "#/responses/NoSuchExecInstance" // 500: // $ref: "#/responses/InternalError" - r.Handle(VersionedPath("/libpod/exec/{id}/json"), s.APIHandler(compat.UnsupportedHandler)).Methods(http.MethodGet) + r.Handle(VersionedPath("/libpod/exec/{id}/json"), s.APIHandler(compat.ExecInspectHandler)).Methods(http.MethodGet) return nil } |