Beispiel #1
0
func (j *PatchEnvironmentRequest) Execute(resp jobs.Response) {
	if err := j.Write(true); err != nil {
		resp.Failure(ErrEnvironmentUpdateFailed)
		return
	}
	resp.Success(jobs.ResponseOk)
}
Beispiel #2
0
func (j *ListContainersRequest) Execute(resp jobs.Response) {
	r := &ListContainersResponse{make(ContainerUnitResponses, 0)}

	if err := unitsMatching(reContainerUnits, func(name string, unit *dbus.UnitStatus) {
		if unit.LoadState == "not-found" || unit.LoadState == "masked" {
			return
		}
		r.Containers = append(r.Containers, ContainerUnitResponse{
			UnitResponse{
				name,
				unit.ActiveState,
				unit.SubState,
			},
			unit.LoadState,
			unit.JobType,
			"",
		})
	}); err != nil {
		log.Printf("list_units: Unable to list units from systemd: %v", err)
		resp.Failure(ErrListContainersFailed)
		return
	}

	r.Sort()
	resp.SuccessWithData(jobs.ResponseOk, r)
}
Beispiel #3
0
func (j *CreateKeysRequest) Execute(resp jobs.Response) {
	failedKeys := []KeyFailure{}
	for i := range j.Keys {
		key := j.Keys[i]

		locator, err := key.Create()
		if err != nil {
			failedKeys = append(failedKeys, KeyFailure{i, &key, err})
			continue
		}

		for k := range j.Permissions {
			if err := j.Permissions[k].Create(locator); err != nil {
				failedKeys = append(failedKeys, KeyFailure{i, &key, err})
				continue
			}
		}
	}

	if len(failedKeys) > 0 {
		data := make([]KeyStructuredFailure, len(failedKeys))
		for i := range failedKeys {
			data[i] = KeyStructuredFailure{failedKeys[i].Index, failedKeys[i].Reason.Error()}
			log.Printf("Failure %d: %+v", failedKeys[i].Index, failedKeys[i].Reason)
		}
		resp.Failure(jobs.StructuredJobError{jobs.SimpleError{jobs.ResponseError, "Not all keys were completed"}, data})
	} else {
		resp.Success(jobs.ResponseOk)
	}
}
Beispiel #4
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func (j AddAliasRequest) Execute(resp jobs.Response) {
	value, ok := router.GlobalRoutes[j.Frontend]
	if ok {
		router.AddAlias(j.Alias, value.Name)
	} else {
		router.CreateFrontend(j.Frontend, j.Alias)
	}
	resp.Success(jobs.ResponseOk)
}
Beispiel #5
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func (j CreateFrontendRequest) Execute(resp jobs.Response) {
	value, ok := router.GlobalRoutes[j.Frontend]
	if !ok {
		router.CreateFrontend(j.Frontend, j.Alias)
	} else {
		log.Printf("Error : Frontend %s already exists.", value.Name)
	}
	resp.Success(jobs.ResponseOk)
}
Beispiel #6
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func (j *LinkContainersRequest) Execute(resp jobs.Response) {
	for i := range j.Links {
		if errw := j.Links[i].NetworkLinks.Write(j.Links[i].Id.NetworkLinksPathFor(), false); errw != nil {
			resp.Failure(ErrLinkContainersFailed)
			return
		}
	}

	resp.Success(jobs.ResponseOk)
}
Beispiel #7
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func (j *ContainerPortsRequest) Execute(resp jobs.Response) {
	portPairs, err := containers.GetExistingPorts(j.Id)
	if err != nil {
		log.Printf("job_container_ports_log: Unable to find unit: %s\n", err.Error())
		resp.Failure(ErrContainerNotFound)
		return
	}

	resp.SuccessWithData(jobs.ResponseAccepted, ContainerPortsResponse{portPairs})
}
Beispiel #8
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func (j *ContainerLogRequest) Execute(resp jobs.Response) {
	if _, err := os.Stat(j.Id.UnitPathFor()); err != nil {
		resp.Failure(ErrContainerNotFound)
		return
	}

	w := resp.SuccessWithWrite(jobs.ResponseOk, true, false)
	err := systemd.WriteLogsTo(w, j.Id.UnitNameFor(), 30, time.After(30*time.Second))
	if err != nil {
		log.Printf("job_container_log: Unable to fetch journal logs: %s\n", err.Error())
	}
}
Beispiel #9
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func (j GetRoutesRequest) Execute(resp jobs.Response) {
	// router.ReadRoutes()
	var out string
	if j.Frontend == "*" {
		out = router.PrintRoutes()
	} else {
		out = router.PrintFrontendRoutes(j.Frontend)
	}
	fmt.Println(out)
	resp.SuccessWithData(jobs.ResponseOk, &out)
	// fmt.Fprintf(w, out)
}
Beispiel #10
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func (j *ContainerStatusRequest) Execute(resp jobs.Response) {
	if _, err := os.Stat(j.Id.UnitPathFor()); err != nil {
		//log.Printf("container_status: Can't stat unit: %v", err)
		resp.Failure(ErrContainerNotFound)
		return
	}

	w := resp.SuccessWithWrite(jobs.ResponseOk, true, false)
	err := systemd.WriteStatusTo(w, j.Id.UnitNameFor())
	if err != nil {
		log.Printf("container_status: Unable to fetch container status logs: %s\n", err.Error())
	}
}
Beispiel #11
0
func (j *ListBuildsRequest) Execute(resp jobs.Response) {
	r := ListBuildsResponse{make(UnitResponses, 0)}

	if err := unitsMatching(reBuildUnits, func(name string, unit *dbus.UnitStatus) {
		r.Builds = append(r.Builds, UnitResponse{
			name,
			unit.ActiveState,
			unit.SubState,
		})
	}); err != nil {
		log.Printf("list_units: Unable to list units from systemd: %v", err)
		resp.Failure(ErrListContainersFailed)
		return
	}
	sort.Sort(r.Builds)
	resp.SuccessWithData(jobs.ResponseOk, r)
}
Beispiel #12
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func (j UpdateFrontendRequest) Execute(resp jobs.Response) {
	// detach empty frontends
	for _, frontend := range j.Frontends {
		if frontend.BackendId == "" {
			frontend.Remove()
		}
	}

	errs := []backendError{}
	for _, backend := range j.Backends {
		if err := utils.WriteToPathExclusive(backend.Id.BackendPathFor(), 0554, backend); err != nil {
			errs = append(errs, backendError{backend.Id, err})
		}
	}
	if len(errs) != 0 {
		log.Printf("Unable to persist some backends: %+v", errs)
		resp.Failure(ErrBackendWriteFailed)
		return
	}
	resp.Success(jobs.ResponseOk)
}
Beispiel #13
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func (j *PutEnvironmentRequest) Execute(resp jobs.Response) {
	if err := j.Fetch(100 * 1024); err != nil {
		resp.Failure(ErrEnvironmentUpdateFailed)
		return
	}
	if err := j.Write(false); err != nil {
		resp.Failure(ErrEnvironmentUpdateFailed)
		return
	}

	resp.Success(jobs.ResponseOk)
}
Beispiel #14
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func (j *ContentRequest) Execute(resp jobs.Response) {
	switch j.Type {
	case ContentTypeEnvironment:
		id, errr := containers.NewIdentifier(j.Locator)
		if errr != nil {
			resp.Failure(jobs.SimpleError{jobs.ResponseInvalidRequest, fmt.Sprintf("Invalid environment identifier: %s", errr.Error())})
			return
		}
		file, erro := os.Open(id.EnvironmentPathFor())
		if erro != nil {
			resp.Failure(ErrEnvironmentNotFound)
			return
		}
		defer file.Close()
		w := resp.SuccessWithWrite(jobs.ResponseOk, false, false)
		if _, err := io.Copy(w, file); err != nil {
			log.Printf("job_content: Unable to write environment file: %+v", err)
			return
		}
	}
}
Beispiel #15
0
func (j *ListImagesRequest) Execute(resp jobs.Response) {
	// TODO: config item for docker port
	dockerClient, err := docker.NewClient(j.DockerSocket)

	if err != nil {
		log.Printf("job_list_images: Couldn't connect to docker: %+v", err)
		resp.Failure(ErrListImagesFailed)
		return
	}

	imgs, err := dockerClient.ListImages(false)

	if err != nil {
		log.Printf("job_list_images: Couldn't connect to docker: %+v", err)
		resp.Failure(ErrListImagesFailed)
		return
	}

	w := resp.SuccessWithWrite(jobs.ResponseAccepted, true, false)
	for _, img := range imgs {
		fmt.Fprintf(w, "%+v\n", img.RepoTags[0])
	}
}
Beispiel #16
0
func (j DeleteFrontendRequest) Execute(resp jobs.Response) {
	router.DeleteFrontend(j.Frontend)
	resp.Success(jobs.ResponseOk)
}
Beispiel #17
0
func (req *InstallContainerRequest) Execute(resp jobs.Response) {
	id := req.Id
	unitName := id.UnitNameFor()
	unitPath := id.UnitPathFor()
	unitVersionPath := id.VersionedUnitPathFor(req.RequestIdentifier.String())

	socketUnitName := id.SocketUnitNameFor()
	socketUnitPath := id.SocketUnitPathFor()
	var socketActivationType string
	if req.SocketActivation {
		socketActivationType = "enabled"
		if !req.SkipSocketProxy {
			socketActivationType = "proxied"
		}
	}

	// attempt to download the environment if it is remote
	env := req.Environment
	if env != nil {
		if err := env.Fetch(100 * 1024); err != nil {
			resp.Failure(ErrContainerCreateFailed)
			return
		}
		if env.Empty() {
			env = nil
		}
	}

	// open and lock the base path (to prevent simultaneous updates)
	state, exists, err := utils.OpenFileExclusive(unitPath, 0664)
	if err != nil {
		log.Print("install_container: Unable to lock unit file: ", err)
		resp.Failure(ErrContainerCreateFailed)
	}
	defer state.Close()

	// write a new file to disk that describes the new service
	unit, err := utils.CreateFileExclusive(unitVersionPath, 0664)
	if err != nil {
		log.Print("install_container: Unable to open unit file definition: ", err)
		resp.Failure(ErrContainerCreateFailed)
		return
	}
	defer unit.Close()

	// if this is an existing container, read the currently reserved ports
	existingPorts := port.PortPairs{}
	if exists {
		existingPorts, err = containers.GetExistingPorts(id)
		if err != nil {
			if _, ok := err.(*os.PathError); !ok {
				log.Print("install_container: Unable to read existing ports from file: ", err)
				resp.Failure(ErrContainerCreateFailed)
				return
			}
		}
	}

	// allocate and reserve ports for this container
	reserved, erra := port.AtomicReserveExternalPorts(unitVersionPath, req.Ports, existingPorts)
	if erra != nil {
		log.Printf("install_container: Unable to reserve external ports: %+v", erra)
		resp.Failure(ErrContainerCreateFailedPortsReserved)
		return
	}
	if len(reserved) > 0 {
		resp.WritePendingSuccess(PendingPortMappingName, reserved)
	}

	var portSpec string
	if req.Simple && len(reserved) == 0 {
		portSpec = "-P"
	} else {
		portSpec = dockerPortSpec(reserved)
	}

	// write the environment to disk
	var environmentPath string
	if env != nil {
		if errw := env.Write(false); errw != nil {
			resp.Failure(ErrContainerCreateFailed)
			return
		}
		environmentPath = env.Id.EnvironmentPathFor()
	}

	// write the network links (if any) to disk
	if req.NetworkLinks != nil {
		if errw := req.NetworkLinks.Write(id.NetworkLinksPathFor(), false); errw != nil {
			resp.Failure(ErrContainerCreateFailed)
			return
		}
	}

	slice := "container-small"

	// write the definition unit file
	args := csystemd.ContainerUnit{
		Id:       id,
		Image:    req.Image,
		PortSpec: portSpec,
		Slice:    slice + ".slice",

		Isolate: req.Isolate,

		ReqId: req.RequestIdentifier.String(),

		HomeDir:         id.HomePath(),
		RunDir:          id.RunPathFor(),
		EnvironmentPath: environmentPath,
		ExecutablePath:  filepath.Join("/", "usr", "bin", "gear"),
		IncludePath:     "",

		PortPairs:            reserved,
		SocketUnitName:       socketUnitName,
		SocketActivationType: socketActivationType,

		DockerFeatures: config.SystemDockerFeatures,
	}

	var templateName string
	switch {
	case req.SocketActivation:
		templateName = "SOCKETACTIVATED"
	case config.SystemDockerFeatures.ForegroundRun:
		templateName = "FOREGROUND"
	default:
		templateName = "SIMPLE"
	}

	if erre := csystemd.ContainerUnitTemplate.ExecuteTemplate(unit, templateName, args); erre != nil {
		log.Printf("install_container: Unable to output template: %+v", erre)
		resp.Failure(ErrContainerCreateFailed)
		defer os.Remove(unitVersionPath)
		return
	}
	if err := unit.Close(); err != nil {
		log.Printf("install_container: Unable to finish writing unit: %+v", err)
		resp.Failure(ErrContainerCreateFailed)
		defer os.Remove(unitVersionPath)
		return
	}

	// swap the new definition with the old one
	if err := utils.AtomicReplaceLink(unitVersionPath, unitPath); err != nil {
		log.Printf("install_container: Failed to activate new unit: %+v", err)
		resp.Failure(ErrContainerCreateFailed)
		return
	}
	state.Close()

	// write whether this container should be started on next boot
	if req.Started {
		if errs := csystemd.SetUnitStartOnBoot(id, true); errs != nil {
			log.Print("install_container: Unable to write container boot link: ", err)
			resp.Failure(ErrContainerCreateFailed)
			return
		}
	}

	// Generate the socket file and ignore failures
	paths := []string{unitPath}
	if req.SocketActivation {
		if err := writeSocketUnit(socketUnitPath, &args); err == nil {
			paths = []string{unitPath, socketUnitPath}
		}
	}

	if err := systemd.EnableAndReloadUnit(systemd.Connection(), unitName, paths...); err != nil {
		log.Printf("install_container: Could not enable container %s (%v): %v", unitName, paths, err)
		resp.Failure(ErrContainerCreateFailed)
		return
	}

	if req.Started {
		if req.SocketActivation {
			// Start the socket file, not the service and ignore failures
			if err := systemd.Connection().StartUnitJob(socketUnitName, "replace"); err != nil {
				log.Printf("install_container: Could not start container socket %s: %v", socketUnitName, err)
				resp.Failure(ErrContainerCreateFailed)
				return
			}
		} else {
			if err := systemd.Connection().StartUnitJob(unitName, "replace"); err != nil {
				log.Printf("install_container: Could not start container %s: %v", unitName, err)
				resp.Failure(ErrContainerCreateFailed)
				return
			}

		}
	}

	w := resp.SuccessWithWrite(jobs.ResponseAccepted, true, false)
	if req.Started {
		fmt.Fprintf(w, "Container %s is starting\n", id)
	} else {
		fmt.Fprintf(w, "Container %s is installed\n", id)
	}
}
Beispiel #18
0
func (j CreateRepositoryRequest) Execute(resp jobs.Response) {
	unitName := fmt.Sprintf("job-create-repo-%s.service", j.RequestId.String())
	path := j.Id.HomePath()

	if _, err := os.Stat(path); err == nil || !os.IsNotExist(err) {
		resp.Failure(ErrRepositoryAlreadyExists)
		return
	}

	conn, errc := systemd.NewConnection()
	if errc != nil {
		log.Print("create_repository:", errc)
		return
	}

	if err := conn.Subscribe(); err != nil {
		log.Print("create_repository:", err)
		return
	}
	defer conn.Unsubscribe()

	// make subscription global for efficiency
	changes, errch := conn.SubscribeUnitsCustom(1*time.Second, 2,
		func(s1 *dbus.UnitStatus, s2 *dbus.UnitStatus) bool {
			return true
		},
		func(unit string) bool {
			return unit != unitName
		})

	stdout, err := systemd.ProcessLogsForUnit(unitName)
	if err != nil {
		stdout = utils.EmptyReader
		log.Printf("create_repository: Unable to fetch build logs: %+v", err)
	}
	defer stdout.Close()

	startCmd := []string{
		filepath.Join("/", "usr", "bin", "gear"),
		"init-repo",
		string(j.Id),
	}
	if j.CloneUrl != "" {
		startCmd = append(startCmd, j.CloneUrl)
	}

	status, err := conn.StartTransientUnit(
		unitName,
		"fail",
		dbus.PropExecStart(startCmd, true),
		dbus.PropDescription(fmt.Sprintf("Create repository %s", j.Id)),
		dbus.PropRemainAfterExit(true),
		dbus.PropSlice("githost.slice"),
	)
	if err != nil {
		log.Printf("create_repository: Could not start unit %s: %s", unitName, systemd.SprintSystemdError(err))
		resp.Failure(ErrRepositoryCreateFailed)
		return
	} else if status != "done" {
		log.Printf("create_repository: Unit did not return 'done'")
		resp.Failure(ErrRepositoryCreateFailed)
		return
	}

	w := resp.SuccessWithWrite(jobs.ResponseAccepted, true, false)
	go io.Copy(w, stdout)

wait:
	for {
		select {
		case c := <-changes:
			if changed, ok := c[unitName]; ok {
				if changed.SubState != "running" {
					fmt.Fprintf(w, "Repository created succesfully\n")
					break wait
				}
			}
		case err := <-errch:
			fmt.Fprintf(w, "Error %+v\n", err)
		case <-time.After(10 * time.Second):
			log.Print("create_repository:", "timeout")
			break wait
		}
	}

	stdout.Close()
}
Beispiel #19
0
func (j GitArchiveContentRequest) Execute(resp jobs.Response) {
	w := resp.SuccessWithWrite(jobs.ResponseOk, false, false)
	if err := writeGitRepositoryArchive(w, j.RepositoryId.RepositoryPathFor(), j.Ref); err != nil {
		log.Printf("job_content: Invalid git repository stream: %v", err)
	}
}
Beispiel #20
0
func (h *HttpTransport) ExecuteRemote(baseUrl *url.URL, job RemoteExecutable, res jobs.Response) error {
	reader, writer := io.Pipe()
	httpreq, errn := http.NewRequest(job.HttpMethod(), baseUrl.String(), reader)
	if errn != nil {
		return errn
	}

	id := job.MarshalRequestIdentifier()
	if len(id) == 0 {
		id = jobs.NewRequestIdentifier()
	}

	query := &url.Values{}
	job.MarshalUrlQuery(query)

	req := httpreq
	req.Header.Set("X-Request-Id", id.String())
	req.Header.Set("If-Match", "api="+ApiVersion())
	req.Header.Set("Content-Type", "application/json")
	//TODO: introduce API version per job
	//TODO: content request signing for GETs
	req.URL.Path = job.HttpPath()
	req.URL.RawQuery = query.Encode()
	go func() {
		if err := job.MarshalHttpRequestBody(writer); err != nil {
			log.Printf("http_remote: Error when writing to http: %v", err)
			writer.CloseWithError(err)
		} else {
			writer.Close()
		}
	}()

	resp, err := h.client.Do(req)
	if err != nil {
		return err
	}
	defer resp.Body.Close()

	isJson := resp.Header.Get("Content-Type") == "application/json"

	switch code := resp.StatusCode; {
	case code == 202:
		if isJson {
			return errors.New("Decoding of streaming JSON has not been implemented")
		}
		data, err := job.UnmarshalHttpResponse(resp.Header, nil, ResponseTable)
		if err != nil {
			return err
		}
		if pending, ok := data.(map[string]interface{}); ok {
			for k := range pending {
				res.WritePendingSuccess(k, pending[k])
			}
		}
		w := res.SuccessWithWrite(jobs.ResponseOk, false, false)
		if _, err := io.Copy(w, resp.Body); err != nil {
			return err
		}
	case code == 204:
		data, err := job.UnmarshalHttpResponse(resp.Header, nil, ResponseTable)
		if err != nil {
			return err
		}
		if pending, ok := data.(map[string]interface{}); ok {
			for k := range pending {
				res.WritePendingSuccess(k, pending[k])
			}
		}
		res.Success(jobs.ResponseOk)
	case code >= 200 && code < 300:
		if !isJson {
			return errors.New(fmt.Sprintf("remote: Response with %d status code had content type %s (should be application/json)", code, resp.Header.Get("Content-Type")))
		}
		data, err := job.UnmarshalHttpResponse(nil, resp.Body, ResponseJson)
		if err != nil {
			return err
		}
		res.SuccessWithData(jobs.ResponseOk, data)
	default:
		if isJson {
			decoder := json.NewDecoder(resp.Body)
			data := httpFailureResponse{}
			if err := decoder.Decode(&data); err != nil {
				return err
			}
			res.Failure(jobs.SimpleError{jobs.ResponseError, data.Message})
			return nil
		}
		io.Copy(os.Stderr, resp.Body)
		res.Failure(jobs.SimpleError{jobs.ResponseError, "Unable to decode response."})
	}
	return nil
}
Beispiel #21
0
func (j DeleteRouteRequest) Execute(resp jobs.Response) {
	// TODO
	resp.Success(jobs.ResponseOk)
}
Beispiel #22
0
func (j *BuildImageRequest) Execute(resp jobs.Response) {
	w := resp.SuccessWithWrite(jobs.ResponseAccepted, true, false)

	fmt.Fprintf(w, "Processing build-image request:\n")
	// TODO: download source, add bind-mount

	unitName := containers.JobIdentifier(j.Name).UnitNameForBuild()
	unitDescription := fmt.Sprintf("Builder for %s", j.Tag)

	stdout, err := systemd.ProcessLogsForUnit(unitName)
	if err != nil {
		stdout = utils.EmptyReader
		log.Printf("job_build_image: Unable to fetch build logs: %s, %+v", err.Error(), err)
	}
	defer stdout.Close()

	conn, errc := systemd.NewConnection()
	if errc != nil {
		log.Print("job_build_image:", errc)
		fmt.Fprintf(w, "Unable to watch start status", errc)
		return
	}

	if err := conn.Subscribe(); err != nil {
		log.Print("job_build_image:", err)
		fmt.Fprintf(w, "Unable to watch start status", errc)
		return
	}
	defer conn.Unsubscribe()

	// make subscription global for efficiency
	var (
		changes <-chan map[string]*dbus.UnitStatus
		errch   <-chan error
	)
	if resp.StreamResult() {
		changes, errch = conn.SubscribeUnitsCustom(1*time.Second, 2,
			func(s1 *dbus.UnitStatus, s2 *dbus.UnitStatus) bool {
				return true
			},
			func(unit string) bool {
				return unit != unitName
			})
	}

	fmt.Fprintf(w, "Running sti build unit: %s\n", unitName)
	log.Printf("build_image: Running build %s", unitName)

	var startCmd []string

	if _, err := os.Stat(gearBinaryPath); err != nil {
		log.Println("gear executable is not installed on system; using sti builder image")
		startCmd = []string{
			"/usr/bin/docker", "run",
			"-rm",
			"-v", "/run/docker.sock:/run/docker.sock",
			"-t", buildImage,
			"sti", "build", j.Source, j.BaseImage, j.Tag,
			"-U", "unix:///run/docker.sock",
		}
	} else {
		startCmd = []string{
			gearBinaryPath, "build", j.Source, j.BaseImage, j.Tag,
		}
	}

	if j.RuntimeImage != "" {
		startCmd = append(startCmd, "--runtime-image")
		startCmd = append(startCmd, j.RuntimeImage)
	}

	if j.Clean {
		startCmd = append(startCmd, "--clean")
	}

	if j.Verbose {
		startCmd = append(startCmd, "--debug")
	}

	if j.CallbackUrl != "" {
		startCmd = append(startCmd, "--callbackUrl="+j.CallbackUrl)
	}

	log.Printf("build_image: Will execute %v", startCmd)
	status, err := systemd.Connection().StartTransientUnit(
		unitName,
		"fail",
		dbus.PropExecStart(startCmd, true),
		dbus.PropDescription(unitDescription),
		dbus.PropRemainAfterExit(true),
		dbus.PropSlice("container-small.slice"),
	)

	if err != nil {
		errType := reflect.TypeOf(err)
		fmt.Fprintf(w, "Unable to start build container for this image due to (%s): %s\n", errType, err.Error())
		return
	} else if status != "done" {
		fmt.Fprintf(w, "Build did not complete successfully: %s\n", status)
	} else {
		fmt.Fprintf(w, "Sti build is running\n")
	}

	if resp.StreamResult() {
		go io.Copy(w, stdout)
	wait:
		for {
			select {
			case c := <-changes:
				if changed, ok := c[unitName]; ok {
					if changed.SubState != "running" {
						fmt.Fprintf(w, "Build completed\n")
						break wait
					}
				}
			case err := <-errch:
				fmt.Fprintf(w, "Error %+v\n", err)
			case <-time.After(25 * time.Second):
				log.Print("job_build_image:", "timeout")
				break wait
			}
		}
	}
}
Beispiel #23
0
func (j *runContainer) Execute(resp jobs.Response) {
	command := j.UnitCommand()
	unitName := containers.JobIdentifier(j.Name).UnitNameFor()
	unitDescription := fmt.Sprintf("Execute image '%s': %s %s", j.Image, j.Command, strings.Join(command, " "))

	var (
		stdout  io.ReadCloser
		changes <-chan map[string]*dbus.UnitStatus
		errch   <-chan error
	)

	if resp.StreamResult() {
		r, err := systemd.ProcessLogsForUnit(unitName)
		if err != nil {
			r = utils.EmptyReader
			log.Printf("run_container: Unable to fetch container run logs: %s, %+v", err.Error(), err)
		}
		defer r.Close()

		conn, errc := systemd.NewConnection()
		if errc != nil {
			log.Print("run_container:", errc)
			return
		}

		if err := conn.Subscribe(); err != nil {
			log.Print("run_container:", err)
			return
		}
		defer conn.Unsubscribe()

		// make subscription global for efficiency
		c, ech := conn.SubscribeUnitsCustom(1*time.Second, 2,
			func(s1 *dbus.UnitStatus, s2 *dbus.UnitStatus) bool {
				return true
			},
			func(unit string) bool {
				return unit != unitName
			})

		stdout = r
		changes = c
		errch = ech
	}

	log.Printf("run_container: Running container %s", unitName)

	status, err := systemd.Connection().StartTransientUnit(
		unitName,
		"fail",
		dbus.PropExecStart(command, true),
		dbus.PropDescription(unitDescription),
		dbus.PropRemainAfterExit(true),
		dbus.PropSlice("container.slice"),
	)

	switch {
	case err != nil:
		errType := reflect.TypeOf(err)
		resp.Failure(jobs.SimpleError{jobs.ResponseError, fmt.Sprintf("Unable to start container execution due to (%s): %s", errType, err.Error())})
		return
	case status != "done":
		resp.Failure(jobs.SimpleError{jobs.ResponseError, fmt.Sprintf("Start did not complete successfully: %s", status)})
		return
	case stdout == nil:
		resp.Success(jobs.ResponseOk)
		return
	}

	w := resp.SuccessWithWrite(jobs.ResponseAccepted, true, false)
	go io.Copy(w, stdout)

wait:
	for {
		select {
		case c := <-changes:
			if changed, ok := c[unitName]; ok {
				if changed.SubState != "running" {
					break wait
				}
			}
		case err := <-errch:
			fmt.Fprintf(w, "Error %+v\n", err)
		case <-time.After(1 * time.Minute):
			log.Print("run_container:", "timeout")
			break wait
		}
	}

	stdout.Close()
}
Beispiel #24
0
func (j *StoppedContainerStateRequest) Execute(resp jobs.Response) {
	unitName := j.Id.UnitNameFor()

	inState, tooSoon := inStateOrTooSoon(j.Id, unitName, false, false, rateLimitChanges)
	if inState {
		w := resp.SuccessWithWrite(jobs.ResponseAccepted, true, false)
		fmt.Fprintf(w, "Container %s is stopped\n", j.Id)
		return
	}
	if tooSoon {
		resp.Failure(ErrStopRequestThrottled)
		return
	}

	if errs := csystemd.SetUnitStartOnBoot(j.Id, false); errs != nil {
		log.Print("alter_container_state: Unable to persist whether the unit is started on boot: ", errs)
		resp.Failure(ErrContainerStopFailed)
		return
	}

	w := resp.SuccessWithWrite(jobs.ResponseAccepted, true, false)

	done := make(chan time.Time)
	ioerr := make(chan error)
	go func() {
		ioerr <- systemd.WriteLogsTo(w, unitName, 0, done)
	}()

	joberr := make(chan error)
	go func() {
		status, err := systemd.Connection().StopUnit(unitName, "replace")
		if err == nil && status != "done" {
			err = errors.New(fmt.Sprintf("Job status 'done' != %s", status))
		}
		joberr <- err
	}()

	var err error
	select {
	case err = <-ioerr:
		log.Printf("alter_container_state: Client hung up")
		close(ioerr)
	case err = <-joberr:
		log.Printf("alter_container_state: Stop job done")
	case <-time.After(15 * time.Second):
		log.Printf("alter_container_state: Timeout waiting for stop completion")
	}
	close(done)

	select {
	case <-ioerr:
	}

	switch {
	case systemd.IsNoSuchUnit(err):
		if _, err := os.Stat(j.Id.UnitPathFor()); err == nil {
			fmt.Fprintf(w, "Container %s is stopped\n", j.Id)
		} else {
			fmt.Fprintf(w, "No such container %s\n", j.Id)
		}
	case err != nil:
		fmt.Fprintf(w, "Could not stop container: %s\n", err.Error())
	default:
		fmt.Fprintf(w, "Container %s is stopped\n", j.Id)
	}
}
Beispiel #25
0
func (j *StartedContainerStateRequest) Execute(resp jobs.Response) {
	unitName := j.Id.UnitNameFor()
	unitPath := j.Id.UnitPathFor()

	inState, tooSoon := inStateOrTooSoon(j.Id, unitName, true, false, rateLimitChanges)
	if inState {
		w := resp.SuccessWithWrite(jobs.ResponseAccepted, true, false)
		fmt.Fprintf(w, "Container %s starting\n", j.Id)
		return
	}
	if tooSoon {
		resp.Failure(ErrStartRequestThrottled)
		return
	}

	if errs := csystemd.SetUnitStartOnBoot(j.Id, true); errs != nil {
		log.Print("alter_container_state: Unable to persist whether the unit is started on boot: ", errs)
		resp.Failure(ErrContainerStartFailed)
		return
	}

	if err := systemd.EnableAndReloadUnit(systemd.Connection(), unitName, unitPath); err != nil {
		if systemd.IsNoSuchUnit(err) || systemd.IsFileNotFound(err) {
			resp.Failure(ErrContainerNotFound)
			return
		}
		log.Printf("alter_container_state: Could not enable container %s: %v", unitName, err)
		resp.Failure(ErrContainerStartFailed)
		return
	}

	if err := systemd.Connection().StartUnitJob(unitName, "replace"); err != nil {
		log.Printf("alter_container_state: Could not start container %s: %v", unitName, err)
		resp.Failure(ErrContainerStartFailed)
		return
	}

	w := resp.SuccessWithWrite(jobs.ResponseAccepted, true, false)
	fmt.Fprintf(w, "Container %s starting\n", j.Id)
}
Beispiel #26
0
func (j *DeleteContainerRequest) Execute(resp jobs.Response) {
	unitName := j.Id.UnitNameFor()
	unitPath := j.Id.UnitPathFor()
	unitDefinitionsPath := j.Id.VersionedUnitsPathFor()
	idleFlagPath := j.Id.IdleUnitPathFor()
	socketUnitPath := j.Id.SocketUnitPathFor()
	homeDirPath := j.Id.BaseHomePath()
	runDirPath := j.Id.RunPathFor()
	networkLinksPath := j.Id.NetworkLinksPathFor()

	_, err := systemd.Connection().GetUnitProperties(unitName)
	switch {
	case systemd.IsNoSuchUnit(err):
		resp.Success(jobs.ResponseOk)
		return
	case err != nil:
		resp.Failure(ErrDeleteContainerFailed)
		return
	}

	if err := systemd.Connection().StopUnitJob(unitName, "fail"); err != nil {
		log.Printf("delete_container: Unable to queue stop unit job: %v", err)
	}

	ports, err := containers.GetExistingPorts(j.Id)
	if err != nil {
		if !os.IsNotExist(err) {
			log.Printf("delete_container: Unable to read existing port definitions: %v", err)
		}
		ports = port.PortPairs{}
	}

	if err := port.ReleaseExternalPorts(ports); err != nil {
		log.Printf("delete_container: Unable to release ports: %v", err)
	}

	if err := os.Remove(unitPath); err != nil && !os.IsNotExist(err) {
		resp.Failure(ErrDeleteContainerFailed)
		return
	}

	if err := os.Remove(idleFlagPath); err != nil && !os.IsNotExist(err) {
		resp.Failure(ErrDeleteContainerFailed)
		return
	}

	if err := j.Id.SetUnitStartOnBoot(false); err != nil {
		log.Printf("delete_container: Unable to clear unit boot state: %v", err)
	}

	if err := os.Remove(socketUnitPath); err != nil && !os.IsNotExist(err) {
		log.Printf("delete_container: Unable to remove socket unit path: %v", err)
	}

	if err := os.Remove(networkLinksPath); err != nil && !os.IsNotExist(err) {
		log.Printf("delete_container: Unable to remove network links file: %v", err)
	}

	if err := os.RemoveAll(unitDefinitionsPath); err != nil {
		log.Printf("delete_container: Unable to remove definitions for container: %v", err)
	}

	if err := os.RemoveAll(filepath.Dir(runDirPath)); err != nil {
		log.Printf("delete_container: Unable to remove run directory: %v", err)
	}

	if err := os.RemoveAll(filepath.Dir(homeDirPath)); err != nil {
		log.Printf("delete_container: Unable to remove home directory: %v", err)
	}

	if _, err := systemd.Connection().DisableUnitFiles([]string{unitPath, socketUnitPath}, false); err != nil {
		log.Printf("delete_container: Some units have not been disabled: %v", err)
	}

	if err := systemd.Connection().Reload(); err != nil {
		log.Printf("delete_container: Some units have not been disabled: %v", err)
	}

	resp.Success(jobs.ResponseOk)
}
Beispiel #27
0
func (j AddRouteRequest) Execute(resp jobs.Response) {
	router.AddRoute(j.Frontend, j.FrontendPath, j.BackendPath, j.Protocols, j.Endpoints)
	resp.Success(jobs.ResponseOk)
}
Beispiel #28
0
func (p *purgeContainers) Execute(res jobs.Response) {
	Clean()
	res.Success(jobs.ResponseOk)
}