func Init() {
var volumesDir string
if user, err := user.Current(); err == nil {
volumesDir = fmt.Sprintf("/tmp/serviced-%s/var/isvcs", user.Username)
} else {
volumesDir = "/tmp/serviced/var/isvcs"
}
Mgr = NewManager("unix:///var/run/docker.sock", imagesDir(), volumesDir)
if err := Mgr.Register(elasticsearch); err != nil {
glog.Fatalf("%s", err)
}
if err := Mgr.Register(zookeeper); err != nil {
glog.Fatalf("%s", err)
}
if err := Mgr.Register(logstash); err != nil {
glog.Fatalf("%s", err)
}
if err := Mgr.Register(opentsdb); err != nil {
glog.Fatalf("%s", err)
}
if err := Mgr.Register(celery); err != nil {
glog.Fatalf("%s", err)
}
}
func (d *daemon) startRPC() {
if options.DebugPort > 0 {
go func() {
if err := http.ListenAndServe(fmt.Sprintf(":%d", options.DebugPort), nil); err != nil {
glog.Errorf("Unable to bind to debug port %s. Is another instance running?", err)
return
}
}()
}
listener, err := net.Listen("tcp", options.Listen)
if err != nil {
glog.Fatalf("Unable to bind to port %s. Is another instance running?")
}
rpcutils.SetDialTimeout(options.RPCDialTimeout)
d.rpcServer.HandleHTTP(rpc.DefaultRPCPath, rpc.DefaultDebugPath)
glog.V(0).Infof("Listening on %s", listener.Addr().String())
go func() {
for {
conn, err := listener.Accept()
if err != nil {
glog.Fatalf("Error accepting connections: %s", err)
}
go d.rpcServer.ServeCodec(jsonrpc.NewServerCodec(conn))
}
}()
}
func editService(service *dao.Service, editor string) error {
serviceJson, err := json.MarshalIndent(service, " ", " ")
if err != nil {
glog.Fatalf("Problem marshaling service object: %s", err)
}
var reader io.Reader
if terminal.IsTerminal(syscall.Stdin) {
editorPath, err := findEditor(editor)
if err != nil {
fmt.Printf("%s\n", err)
return err
}
f, err := ioutil.TempFile("", fmt.Sprintf("serviced_edit_%s_", service.Id))
if err != nil {
glog.Fatalf("Could not write tempfile: %s", err)
}
defer f.Close()
defer os.Remove(f.Name())
_, err = f.Write(serviceJson)
if err != nil {
glog.Fatalf("Problem writing service json to file: %s", err)
}
editorCmd := exec.Command(editorPath, f.Name())
editorCmd.Stdout = os.Stdout
editorCmd.Stdin = os.Stdin
editorCmd.Stderr = os.Stderr
err = editorCmd.Run()
if err != nil {
glog.Fatal("Editor command returned error: %s", err)
}
_, err = f.Seek(0, 0)
if err != nil {
glog.Fatal("Could not seek to begining of tempfile: %s", err)
}
reader = f
} else {
_, err = os.Stdout.Write(serviceJson)
if err != nil {
glog.Fatal("Could not write service to terminal's stdout: %s", err)
}
reader = os.Stdin
}
serviceJson, err = ioutil.ReadAll(reader)
if err != nil {
glog.Fatal("Could not read tempfile back in: %s", err)
}
err = json.Unmarshal(serviceJson, &service)
if err != nil {
glog.Fatal("Could not parse json: %s", err)
}
return nil
}
func (d *daemon) startISVCS() {
isvcs.Init()
isvcs.Mgr.SetVolumesDir(path.Join(options.VarPath, "isvcs"))
if err := isvcs.Mgr.SetConfigurationOption("elasticsearch-serviced", "cluster", d.getEsClusterName("elasticsearch-serviced")); err != nil {
glog.Fatalf("Could not set es-serviced option: %s", err)
}
if err := isvcs.Mgr.SetConfigurationOption("elasticsearch-logstash", "cluster", d.getEsClusterName("elasticsearch-logstash")); err != nil {
glog.Fatalf("Could not set es-logstash option: %s", err)
}
if err := d.initISVCS(); err != nil {
glog.Fatalf("Could not start isvcs: %s", err)
}
}
//SetUpSuite is run before the tests to ensure elastic, zookeeper etc. are running.
func (dt *DaoTest) SetUpSuite(c *C) {
docker.SetUseRegistry(true)
dt.Port = 9202
isvcs.Init()
isvcs.Mgr.SetVolumesDir("/tmp/serviced-test")
esServicedClusterName, _ := utils.NewUUID36()
if err := isvcs.Mgr.SetConfigurationOption("elasticsearch-serviced", "cluster", esServicedClusterName); err != nil {
c.Fatalf("Could not set elasticsearch-serviced clustername: %s", err)
}
esLogstashClusterName, _ := utils.NewUUID36()
if err := isvcs.Mgr.SetConfigurationOption("elasticsearch-logstash", "cluster", esLogstashClusterName); err != nil {
c.Fatalf("Could not set elasticsearch-logstash clustername: %s", err)
}
isvcs.Mgr.Wipe()
if err := isvcs.Mgr.Start(); err != nil {
c.Fatalf("Could not start es container: %s", err)
}
dt.MappingsFile = "controlplane.json"
dt.FacadeTest.SetUpSuite(c)
dsn := coordzk.NewDSN([]string{"127.0.0.1:2181"}, time.Second*15).String()
glog.Infof("zookeeper dsn: %s", dsn)
zClient, err := coordclient.New("zookeeper", dsn, "", nil)
if err != nil {
glog.Fatalf("Could not start es container: %s", err)
}
zzk.InitializeLocalClient(zClient)
dt.zkConn, err = zzk.GetLocalConnection("/")
if err != nil {
c.Fatalf("could not get zk connection %v", err)
}
dt.Dao, err = NewControlSvc("localhost", int(dt.Port), dt.Facade, "/tmp", "rsync", 4979, time.Minute*5, "localhost:5000", MockStorageDriver{})
if err != nil {
glog.Fatalf("Could not start es container: %s", err)
} else {
for i := 0; i < 10; i += 1 {
id := strconv.Itoa(i)
dt.Dao.RemoveService(id, &unused)
}
for i := 100; i < 110; i += 1 {
id := strconv.Itoa(i)
dt.Dao.RemoveService(id, &unused)
}
}
}
func resourcesDir() string {
path, err := filepath.EvalSymlinks(localDir("resources"))
if err != nil {
glog.Fatalf("Could not evaluate %s, not following symlinks: %s", localDir("resources"), err)
}
return path
}
// GetLocalConnection acquires a connection from the local zookeeper client
func GetLocalConnection(path string) (client.Connection, error) {
localclient, ok := manager[local]
if !ok || localclient.Client == nil {
glog.Fatalf("zClient has not been initialized!")
}
return localclient.GetConnection(path)
}
func init() {
var err error
dockerPortBinding := portBinding{
HostIp: "0.0.0.0",
HostIpOverride: "", // docker registry should always be open
HostPort: registryPort,
}
defaultHealthCheck := healthCheckDefinition{
healthCheck: registryHealthCheck,
Interval: DEFAULT_HEALTHCHECK_INTERVAL,
Timeout: DEFAULT_HEALTHCHECK_TIMEOUT,
}
healthChecks := map[string]healthCheckDefinition{
DEFAULT_HEALTHCHECK_NAME: defaultHealthCheck,
}
command := `DOCKER_REGISTRY_CONFIG=/docker-registry/config/config_sample.yml SETTINGS_FLAVOR=serviced exec docker-registry`
dockerRegistry, err = NewIService(
IServiceDefinition{
Name: "docker-registry",
Repo: IMAGE_REPO,
Tag: IMAGE_TAG,
Command: func() string { return command },
PortBindings: []portBinding{dockerPortBinding},
Volumes: map[string]string{"registry": "/tmp/registry"},
HealthChecks: healthChecks,
},
)
if err != nil {
glog.Fatalf("Error initializing docker-registry container: %s", err)
}
}
// serviced docker sync
func (c *ServicedCli) cmdRegistrySync(ctx *cli.Context) {
err := c.driver.RegistrySync()
if err != nil {
glog.Fatalf("error syncing docker images to local registry: %s", err)
}
}
// elasticsearchHealthCheck() determines if elasticsearch is healthy
func elasticsearchHealthCheck() error {
start := time.Now()
lastError := time.Now()
minUptime := time.Second * 2
timeout := time.Second * 30
schemaFile := localDir("resources/controlplane.json")
for {
if healthResponse, err := cluster.Health(true); err == nil && (healthResponse.Status == "green" || healthResponse.Status == "yellow") {
if buffer, err := os.Open(schemaFile); err != nil {
glog.Fatalf("problem reading %s", err)
return err
} else {
http.Post("http://localhost:9200/controlplane", "application/json", buffer)
buffer.Close()
}
} else {
lastError = time.Now()
glog.V(2).Infof("Still trying to connect to elastic: %v: %s", err, healthResponse)
}
if time.Since(lastError) > minUptime {
break
}
if time.Since(start) > timeout {
return fmt.Errorf("Could not startup elastic search container.")
}
time.Sleep(time.Millisecond * 1000)
}
glog.Info("elasticsearch container started, browser at http://localhost:9200/_plugin/head/")
return nil
}
func (c *ServicedCli) cmdSquash(ctx *cli.Context) {
imageName := ""
baseLayer := ""
newName := ""
args := ctx.Args()
switch len(ctx.Args()) {
case 3:
newName = args[2]
fallthrough
case 2:
baseLayer = args[1]
fallthrough
case 1:
imageName = args[0]
break
default:
cli.ShowCommandHelp(ctx, "squash")
return
}
imageID, err := c.driver.Squash(imageName, baseLayer, newName, ctx.String("tempdir"))
if err != nil {
glog.Fatalf("error squashing: %s", err)
}
fmt.Println(imageID)
}
func (cli *ServicedCli) CmdEditService(args ...string) error {
cmd := Subcmd("edit-service", "[SERVICE_ID]", "edit a service")
var editor string
cmd.StringVar(&editor, "editor", os.Getenv("EDITOR"), "editor to use to edit service definition, also controlled by $EDITOR var")
if err := cmd.Parse(args); err != nil {
cmd.Usage()
return nil
}
if len(cmd.Args()) != 1 {
cmd.Usage()
return nil
}
client := getClient()
var service dao.Service
err := client.GetService(cmd.Arg(0), &service)
if err != nil {
glog.Fatalf("Could not get service %s: %v", cmd.Arg(0), err)
}
err = editService(&service, editor)
var unused int
err = client.UpdateService(service, &unused)
return err
}
// Anytime the available service definitions are modified
// we need to restart the logstash container so it can write out
// its new filter set.
// This method depends on the elasticsearch container being up and running.
func reloadLogstashContainerImpl(ctx datastore.Context, f *Facade) error {
templates, err := f.GetServiceTemplates(ctx)
if err != nil {
glog.Fatalf("Could not write logstash configuration: %s", err)
}
if err := writeLogstashConfiguration(templates); err != nil {
glog.Fatalf("Could not write logstash configuration: %s", err)
return err
}
glog.V(2).Info("Starting logstash container")
if err := isvcs.Mgr.Notify("restart logstash"); err != nil {
glog.Fatalf("Could not start logstash container: %s", err)
return err
}
return nil
}
// Print the list of available services.
func (cli *ServicedCli) CmdServices(args ...string) error {
cmd := Subcmd("services", "[CMD]", "Show services")
var verbose bool
cmd.BoolVar(&verbose, "verbose", false, "Show JSON representation for each service")
var raw bool
cmd.BoolVar(&raw, "raw", false, "Don't show the header line")
var ascii bool
if os.Getenv("SERVICED_ASCII") == "1" {
ascii = true
}
cmd.BoolVar(&ascii, "ascii", ascii, "use ascii characters for service tree (env SERVICED_ASCII=1 will default to ascii)")
if err := cmd.Parse(args); err != nil {
return nil
}
if ascii {
tree_charset = tree_ascii
}
controlPlane := getClient()
var services []*dao.Service
err := controlPlane.GetServices(&empty, &services)
if err != nil {
glog.Fatalf("Could not get services: %v", err)
}
if verbose == false {
svcMap := &svcStub{}
svcMap.value = &dao.Service{}
generateSvcMap("", services, svcMap)
svcMap.treePrint(raw)
} else {
servicesJson, err := json.MarshalIndent(services, " ", " ")
if err != nil {
glog.Fatalf("Problem marshaling services object: %s", err)
}
fmt.Printf("%s\n", servicesJson)
}
return err
}
func (f *Forwarder) Exec(cfg *ProcessConfig) *ProcessInstance {
// TODO: make me more extensible
urlAddr, err := url.Parse(f.addr)
if err != nil {
glog.Fatalf("Not a valid path: %s (%v)", f.addr, err)
}
host := fmt.Sprintf("http://%s:50000/", strings.Split(urlAddr.Host, ":")[0])
// Dial the remote ProcessServer
client, err := socketio.Dial(host)
if err != nil {
glog.Fatalf("Unable to contact remote process server: %v", err)
}
client.On("connect", func(ns *socketio.NameSpace) {
if ns.Session.Values[PROCESSKEY] == nil {
ns.Emit("process", cfg)
} else {
glog.Fatalf("Trying to connect to a stale process!")
}
})
ns := client.Of("")
proc := &ProcessInstance{
Stdin: make(chan byte, 1024),
Stdout: make(chan byte, 1024),
Stderr: make(chan byte, 1024),
Result: make(chan Result),
}
client.On("disconnect", func(ns *socketio.NameSpace) {
glog.Infof("Disconnected!")
proc.Disconnect()
proc.Close()
})
go proc.ReadResponse(ns)
go proc.WriteRequest(ns)
go client.Run()
return proc
}
func (d *daemon) getEsClusterName(Type string) string {
filename := path.Join(options.VarPath, "isvcs", Type+".clustername")
clusterName := ""
data, err := ioutil.ReadFile(filename)
if err != nil || len(data) <= 0 {
clusterName, err = utils.NewUUID36()
if err != nil {
glog.Fatalf("could not generate uuid: %s", err)
}
if err := os.MkdirAll(path.Dir(filename), 0770); err != nil {
glog.Fatalf("could not create dir %s: %s", path.Dir(filename), err)
}
if err := ioutil.WriteFile(filename, []byte(clusterName), 0600); err != nil {
glog.Fatalf("could not write clustername to %s: %s", filename, err)
}
} else {
clusterName = strings.TrimSpace(string(data))
}
return clusterName
}
func TestBackup_parseTarInfo(t *testing.T) {
output := bytes.NewBufferString(`
drwxr-xr-x root/root 0 2014-08-22 13:04 ./
drwxr-xr-x root/root 0 2014-08-22 13:04 ./images/
-rw-r--r-- root/root 1801870336 2014-08-22 13:04 ./images/2.tar
-rw-r--r-- root/root 520972800 2014-08-22 13:04 ./images/0.tar
`)
tparse := func(ts string) time.Time {
result, err := time.Parse("2006-01-02 15:04", ts)
if err != nil {
t.Fatalf("Could not parse time: %s", err)
}
return result
}
expected := []tarinfo{
{"drwxr-xr-x", "root", "root", 0, tparse("2014-08-22 13:04"), "./"},
{"drwxr-xr-x", "root", "root", 0, tparse("2014-08-22 13:04"), "./images/"},
{"-rw-r--r--", "root", "root", 1801870336, tparse("2014-08-22 13:04"), "./images/2.tar"},
{"-rw-r--r--", "root", "root", 520972800, tparse("2014-08-22 13:04"), "./images/0.tar"},
}
tf, err := new(tarfile).init(output.Bytes())
if err != nil {
glog.Fatalf("Could not parse: %s", err)
}
actual := []tarinfo(*tf)
if len(expected) != len(actual) {
t.Fatalf("Mismatch (Expected: %v) (Actual: %v)", expected, actual)
}
for i := range expected {
if expected[i].Permission != actual[i].Permission {
t.Errorf("Mismatch (Expected: %v) (Actual: %v)", expected[i], actual[i])
} else if expected[i].Owner != actual[i].Owner {
t.Errorf("Mismatch (Expected: %v) (Actual: %v)", expected[i], actual[i])
} else if expected[i].Group != actual[i].Group {
t.Errorf("Mismatch (Expected: %v) (Actual: %v)", expected[i], actual[i])
} else if expected[i].Size != actual[i].Size {
t.Errorf("Mismatch (Expected: %v) (Actual: %v)", expected[i], actual[i])
} else if !expected[i].Timestamp.Equal(actual[i].Timestamp) {
t.Errorf("Mismatch (Expected: %v) (Actual: %v)", expected[i], actual[i])
} else if strings.TrimSpace(expected[i].Filename) != actual[i].Filename {
t.Errorf("Mismatch (Expected: \"%v\") (Actual: \"%v\")", expected[i].Filename, actual[i].Filename)
}
}
}
// Deploy a service template into the given pool
func (cli *ServicedCli) CmdDeployTemplate(args ...string) error {
cmd := Subcmd("deploy-template", "[OPTIONS] TEMPLATE_ID POOL_ID DEPLOYMENT_ID", "Deploy TEMPLATE_ID into POOL_ID with a new id DEPLOYMENT_ID")
if err := cmd.Parse(args); err != nil {
return err
}
deployreq := dao.ServiceTemplateDeploymentRequest{cmd.Arg(1), cmd.Arg(0), cmd.Arg(2)}
var unused int
if err := getClient().DeployTemplate(deployreq, &unused); err != nil {
glog.Fatalf("Could not deploy service template: %v", err)
}
fmt.Println("OK")
return nil
}
// List the service templates associated with the control plane.
func (cli *ServicedCli) CmdTemplates(args ...string) error {
cmd := Subcmd("templates", "[OPTIONS]", "List templates")
var verbose bool
cmd.BoolVar(&verbose, "verbose", false, "Show JSON representation for each template")
var raw bool
cmd.BoolVar(&raw, "raw", false, "Don't show header line")
if err := cmd.Parse(args); err != nil {
return err
}
c := getClient()
var serviceTemplates map[string]*dao.ServiceTemplate
var unused int
err := c.GetServiceTemplates(unused, &serviceTemplates)
if err != nil {
glog.Fatalf("Could not get list of templates: %s", err)
}
if verbose == false {
outfmt := "%-36s %-16s %-32.32s\n"
if raw == false {
fmt.Printf("%-36s %-16s %-32s\n", "TEMPLATE ID", "NAME", "DESCRIPTION")
} else {
outfmt = "%s|%s|%s\n"
}
for id, t := range serviceTemplates {
fmt.Printf(outfmt, id, t.Name, t.Description)
}
} else {
for id, template := range serviceTemplates {
if t, err := json.MarshalIndent(template, " ", " "); err == nil {
if verbose {
fmt.Printf("%s: %s\n", id, t)
}
}
}
}
return err
}
func init() {
isvcs.Init()
isvcs.Mgr.SetVolumesDir("/tmp/serviced-test")
isvcs.Mgr.Wipe()
controlPlaneDao, err = NewControlSvc("localhost", 9200, addresses)
if err != nil {
glog.Fatalf("Could not start es container: %s", err)
} else {
for i := 0; i < 10; i += 1 {
id := strconv.Itoa(i)
controlPlaneDao.RemoveService(id, &unused)
}
for i := 100; i < 110; i += 1 {
id := strconv.Itoa(i)
controlPlaneDao.RemoveService(id, &unused)
}
}
}
// Remove a service template associated with the control plane.
func (cli *ServicedCli) CmdRemoveTemplate(args ...string) error {
cmd := Subcmd("remove-template", "[OPTIONS]", "Remove a service template")
if err := cmd.Parse(args); err != nil {
return err
}
if len(cmd.Args()) != 1 {
cmd.Usage()
return nil
}
var unused int
if err := getClient().RemoveServiceTemplate(cmd.Arg(0), &unused); err != nil {
glog.Fatalf("Could not remove service template: %v", err)
}
fmt.Println("OK")
return nil
}
func (c *Controller) checkPrereqs(prereqsPassed chan bool, rpcDead chan struct{}) error {
if len(c.prereqs) == 0 {
glog.Infof("No prereqs to pass.")
prereqsPassed <- true
return nil
}
healthCheckInterval := time.Tick(1 * time.Second)
for {
select {
case <-rpcDead:
glog.Fatalf("Exiting, RPC server has gone away")
case <-healthCheckInterval:
failedAny := false
for _, script := range c.prereqs {
glog.Infof("Running prereq command: %s", script.Script)
cmd := exec.Command("sh", "-c", script.Script)
err := cmd.Run()
if err != nil {
msg := fmt.Sprintf("Not starting service yet, waiting on prereq: %s", script.Name)
glog.Warning(msg)
fmt.Fprintln(os.Stderr, msg)
failedAny = true
break
} else {
glog.Infof("Passed prereq [%s].", script.Name)
}
}
if !failedAny {
glog.Infof("Passed all prereqs.")
prereqsPassed <- true
return nil
}
}
}
return nil
}
func (c *ServicedCli) cmdResetRegistry(ctx *cli.Context) {
if err := c.driver.ResetRegistry(); err != nil {
glog.Fatalf("error while resetting the registry: %s", err)
}
}
func (svc *IService) create() (*docker.Container, error) {
var config dockerclient.Config
cd := &docker.ContainerDefinition{
dockerclient.CreateContainerOptions{Name: svc.name(), Config: &config},
dockerclient.HostConfig{},
}
config.Image = commons.JoinRepoTag(svc.Repo, svc.Tag)
config.Cmd = []string{"/bin/sh", "-c", svc.Command()}
// NOTE: USE WITH CARE!
// Enabling host networking for an isvc may expose ports
// of the isvcs to access outside of the serviced host, potentially
// compromising security.
if svc.HostNetwork {
cd.NetworkMode = "host"
glog.Warningf("Host networking enabled for isvc %s", svc.Name)
}
// attach all exported ports
if svc.PortBindings != nil && len(svc.PortBindings) > 0 {
config.ExposedPorts = make(map[dockerclient.Port]struct{})
cd.PortBindings = make(map[dockerclient.Port][]dockerclient.PortBinding)
for _, binding := range svc.PortBindings {
port := dockerclient.Port(fmt.Sprintf("%d", binding.HostPort))
config.ExposedPorts[port] = struct{}{}
portBinding := dockerclient.PortBinding{
HostIp: getHostIp(binding),
HostPort: port.Port(),
}
cd.PortBindings[port] = append(cd.PortBindings[port], portBinding)
}
}
glog.V(1).Infof("Bindings for %s = %v", svc.Name, cd.PortBindings)
// copy any links to other isvcs
if svc.Links != nil && len(svc.Links) > 0 {
// To use a link, the source container must be instantiated already, so
// the service using a link can't be in the first start group.
//
// FIXME: Other sanity checks we could add - make sure that the source
// container is not in the same group or a later group
if svc.StartGroup == 0 {
glog.Fatalf("isvc %s can not use docker Links with StartGroup=0", svc.Name)
}
cd.Links = make([]string, len(svc.Links))
copy(cd.Links, svc.Links)
glog.V(1).Infof("Links for %s = %v", svc.Name, cd.Links)
}
// attach all exported volumes
config.Volumes = make(map[string]struct{})
cd.Binds = []string{}
// service-specific volumes
if svc.Volumes != nil && len(svc.Volumes) > 0 {
for src, dest := range svc.Volumes {
hostpath := svc.getResourcePath(src)
if exists, _ := isDir(hostpath); !exists {
if err := os.MkdirAll(hostpath, 0777); err != nil {
glog.Errorf("could not create %s on host: %s", hostpath, err)
return nil, err
}
}
cd.Binds = append(cd.Binds, fmt.Sprintf("%s:%s", hostpath, dest))
config.Volumes[dest] = struct{}{}
}
}
// global volumes
if isvcsVolumes != nil && len(isvcsVolumes) > 0 {
for src, dest := range isvcsVolumes {
if exists, _ := isDir(src); !exists {
glog.Warningf("Could not mount source %s: path does not exist", src)
continue
}
cd.Binds = append(cd.Binds, fmt.Sprintf("%s:%s", src, dest))
config.Volumes[dest] = struct{}{}
}
}
// attach environment variables
for key, val := range envPerService[svc.Name] {
config.Env = append(config.Env, fmt.Sprintf("%s=%s", key, val))
}
return docker.NewContainer(cd, false, 5*time.Second, nil, nil)
}
func init() {
if mappingError != nil {
glog.Fatalf("error creating addressassignment: %v", mappingError)
}
}
// configureContainer creates and populates two structures, a docker client Config and a docker client HostConfig structure
// that are used to create and start a container respectively. The information used to populate the structures is pulled from
// the service, serviceState, and conn values that are passed into configureContainer.
func configureContainer(a *HostAgent, client *ControlClient,
svc *service.Service, serviceState *servicestate.ServiceState,
virtualAddressSubnet string) (*dockerclient.Config, *dockerclient.HostConfig, error) {
cfg := &dockerclient.Config{}
hcfg := &dockerclient.HostConfig{}
//get this service's tenantId for volume mapping
var tenantID string
err := client.GetTenantId(svc.ID, &tenantID)
if err != nil {
glog.Errorf("Failed getting tenantID for service: %s, %s", svc.ID, err)
return nil, nil, err
}
// get the system user
unused := 0
systemUser := user.User{}
err = client.GetSystemUser(unused, &systemUser)
if err != nil {
glog.Errorf("Unable to get system user account for agent %s", err)
return nil, nil, err
}
glog.V(1).Infof("System User %v", systemUser)
cfg.Image = svc.ImageID
// get the endpoints
cfg.ExposedPorts = make(map[dockerclient.Port]struct{})
hcfg.PortBindings = make(map[dockerclient.Port][]dockerclient.PortBinding)
if svc.Endpoints != nil {
glog.V(1).Info("Endpoints for service: ", svc.Endpoints)
for _, endpoint := range svc.Endpoints {
if endpoint.Purpose == "export" { // only expose remote endpoints
var port uint16
port = endpoint.PortNumber
if endpoint.PortTemplate != "" {
t := template.Must(template.New("PortTemplate").Funcs(funcmap).Parse(endpoint.PortTemplate))
b := bytes.Buffer{}
err := t.Execute(&b, serviceState)
if err == nil {
j, err := strconv.Atoi(b.String())
if err != nil {
glog.Errorf("%+v", err)
} else if j > 0 {
port = uint16(j)
}
}
}
var p string
switch endpoint.Protocol {
case commons.UDP:
p = fmt.Sprintf("%d/%s", port, "udp")
default:
p = fmt.Sprintf("%d/%s", port, "tcp")
}
cfg.ExposedPorts[dockerclient.Port(p)] = struct{}{}
hcfg.PortBindings[dockerclient.Port(p)] = append(hcfg.PortBindings[dockerclient.Port(p)], dockerclient.PortBinding{})
}
}
}
if len(tenantID) == 0 && len(svc.Volumes) > 0 {
// FIXME: find a better way of handling this error condition
glog.Fatalf("Could not get tenant ID and need to mount a volume, service state: %s, service id: %s", serviceState.ID, svc.ID)
}
// Make sure the image exists locally.
if _, err = docker.FindImage(svc.ImageID, true); err != nil {
glog.Errorf("can't find docker image %s: %s", svc.ImageID, err)
return nil, nil, err
}
cfg.Volumes = make(map[string]struct{})
hcfg.Binds = []string{}
if err := injectContext(svc, serviceState, client); err != nil {
glog.Errorf("Error injecting context: %s", err)
return nil, nil, err
}
for _, volume := range svc.Volumes {
if volume.Type != "" && volume.Type != "dfs" {
continue
}
resourcePath, err := a.setupVolume(tenantID, svc, volume)
if err != nil {
return nil, nil, err
}
binding := fmt.Sprintf("%s:%s", resourcePath, volume.ContainerPath)
cfg.Volumes[strings.Split(binding, ":")[1]] = struct{}{}
hcfg.Binds = append(hcfg.Binds, strings.TrimSpace(binding))
}
dir, binary, err := ExecPath()
if err != nil {
glog.Errorf("Error getting exec path: %v", err)
return nil, nil, err
}
volumeBinding := fmt.Sprintf("%s:/serviced", dir)
cfg.Volumes[strings.Split(volumeBinding, ":")[1]] = struct{}{}
hcfg.Binds = append(hcfg.Binds, strings.TrimSpace(volumeBinding))
// bind mount everything we need for logstash-forwarder
if len(svc.LogConfigs) != 0 {
const LOGSTASH_CONTAINER_DIRECTORY = "/usr/local/serviced/resources/logstash"
logstashPath := utils.ResourcesDir() + "/logstash"
binding := fmt.Sprintf("%s:%s", logstashPath, LOGSTASH_CONTAINER_DIRECTORY)
cfg.Volumes[LOGSTASH_CONTAINER_DIRECTORY] = struct{}{}
hcfg.Binds = append(hcfg.Binds, binding)
glog.V(1).Infof("added logstash bind mount: %s", binding)
}
// specify temporary volume paths for docker to create
tmpVolumes := []string{"/tmp"}
for _, volume := range svc.Volumes {
if volume.Type == "tmp" {
tmpVolumes = append(tmpVolumes, volume.ContainerPath)
}
}
for _, path := range tmpVolumes {
cfg.Volumes[path] = struct{}{}
glog.V(4).Infof("added temporary docker container path: %s", path)
}
// add arguments to mount requested directory (if requested)
glog.V(2).Infof("Checking Mount options for service %#v", svc)
for _, bindMountString := range a.mount {
glog.V(2).Infof("bindmount is %#v", bindMountString)
splitMount := strings.Split(bindMountString, ",")
numMountArgs := len(splitMount)
if numMountArgs == 2 || numMountArgs == 3 {
requestedImage := splitMount[0]
glog.V(2).Infof("mount requestedImage %#v", requestedImage)
hostPath := splitMount[1]
glog.V(2).Infof("mount hostPath %#v", hostPath)
// assume the container path is going to be the same as the host path
containerPath := hostPath
// if the container path is provided, use it
if numMountArgs > 2 {
containerPath = splitMount[2]
}
glog.V(2).Infof("mount containerPath %#v", containerPath)
// insert tenantId into requestedImage - see facade.DeployService
matchedRequestedImage := false
if requestedImage == "*" {
matchedRequestedImage = true
} else {
imageID, err := commons.ParseImageID(requestedImage)
if err != nil {
glog.Errorf("error parsing imageid %v: %v", requestedImage, err)
continue
}
svcImageID, err := commons.ParseImageID(svc.ImageID)
if err != nil {
glog.Errorf("error parsing service imageid %v; %v", svc.ImageID, err)
continue
}
glog.V(2).Infof("mount checking %#v and %#v ", imageID, svcImageID)
matchedRequestedImage = (imageID.Repo == svcImageID.Repo)
}
if matchedRequestedImage {
binding := fmt.Sprintf("%s:%s", hostPath, containerPath)
cfg.Volumes[strings.Split(binding, ":")[1]] = struct{}{}
hcfg.Binds = append(hcfg.Binds, strings.TrimSpace(binding))
}
} else {
glog.Warningf("Could not bind mount the following: %s", bindMountString)
}
}
// Get host IP
ips, err := utils.GetIPv4Addresses()
if err != nil {
glog.Errorf("Error getting host IP addresses: %v", err)
return nil, nil, err
}
// add arguments for environment variables
cfg.Env = append([]string{},
fmt.Sprintf("CONTROLPLANE_SYSTEM_USER=%s", systemUser.Name),
fmt.Sprintf("CONTROLPLANE_SYSTEM_PASSWORD=%s", systemUser.Password),
fmt.Sprintf("CONTROLPLANE_HOST_IPS='%s'", strings.Join(ips, " ")),
fmt.Sprintf("SERVICED_VIRTUAL_ADDRESS_SUBNET=%s", virtualAddressSubnet),
fmt.Sprintf("SERVICED_IS_SERVICE_SHELL=false"),
fmt.Sprintf("SERVICED_NOREGISTRY=%s", os.Getenv("SERVICED_NOREGISTRY")),
fmt.Sprintf("SERVICED_SERVICE_IMAGE=%s", svc.ImageID),
fmt.Sprintf("SERVICED_MAX_RPC_CLIENTS=1"),
fmt.Sprintf("SERVICED_RPC_PORT=%s", a.rpcport),
fmt.Sprintf("TZ=%s", os.Getenv("TZ")))
// add dns values to setup
for _, addr := range a.dockerDNS {
_addr := strings.TrimSpace(addr)
if len(_addr) > 0 {
cfg.Dns = append(cfg.Dns, addr)
}
}
// Add hostname if set
if svc.Hostname != "" {
cfg.Hostname = svc.Hostname
}
cfg.Cmd = append([]string{},
fmt.Sprintf("/serviced/%s", binary),
"service",
"proxy",
svc.ID,
strconv.Itoa(serviceState.InstanceID),
svc.Startup)
if svc.Privileged {
hcfg.Privileged = true
}
// Memory and CpuShares should never be negative
if svc.MemoryLimit < 0 {
cfg.Memory = 0
} else {
cfg.Memory = svc.MemoryLimit
}
if svc.CPUShares < 0 {
cfg.CpuShares = 0
} else {
cfg.CpuShares = svc.CPUShares
}
return cfg, hcfg, nil
}
func (dt *DaoTest) TestStoppingParentStopsChildren(t *C) {
svc := service.Service{
ID: "ParentServiceID",
Name: "ParentService",
Startup: "/usr/bin/ping -c localhost",
Description: "Ping a remote host a fixed number of times",
Instances: 1,
InstanceLimits: domain.MinMax{1, 1, 1},
ImageID: "test/pinger",
PoolID: "default",
DeploymentID: "deployment_id",
DesiredState: int(service.SVCRun),
Launch: "auto",
Endpoints: []service.ServiceEndpoint{},
CreatedAt: time.Now(),
UpdatedAt: time.Now(),
}
childService1 := service.Service{
ID: "childService1",
Name: "childservice1",
Launch: "auto",
PoolID: "default",
DeploymentID: "deployment_id",
Startup: "/bin/sh -c \"while true; do echo hello world 10; sleep 3; done\"",
ParentServiceID: "ParentServiceID",
}
childService2 := service.Service{
ID: "childService2",
Name: "childservice2",
Launch: "auto",
PoolID: "default",
DeploymentID: "deployment_id",
Startup: "/bin/sh -c \"while true; do echo date 10; sleep 3; done\"",
ParentServiceID: "ParentServiceID",
}
// add a service with a subservice
id := "ParentServiceID"
var err error
if err = dt.Dao.AddService(svc, &id); err != nil {
glog.Fatalf("Failed Loading Parent Service Service: %+v, %s", svc, err)
}
childService1Id := "childService1"
childService2Id := "childService2"
if err = dt.Dao.AddService(childService1, &childService1Id); err != nil {
glog.Fatalf("Failed Loading Child Service 1: %+v, %s", childService1, err)
}
if err = dt.Dao.AddService(childService2, &childService2Id); err != nil {
glog.Fatalf("Failed Loading Child Service 2: %+v, %s", childService2, err)
}
// start the service
var affected int
if err = dt.Dao.StartService(dao.ScheduleServiceRequest{id, true}, &affected); err != nil {
glog.Fatalf("Unable to stop parent service: %+v, %s", svc, err)
}
// stop the parent
if err = dt.Dao.StopService(dao.ScheduleServiceRequest{id, true}, &affected); err != nil {
glog.Fatalf("Unable to stop parent service: %+v, %s", svc, err)
}
// verify the children have all stopped
var services []service.Service
var serviceRequest dao.ServiceRequest
err = dt.Dao.GetServices(serviceRequest, &services)
for _, subService := range services {
if subService.DesiredState == int(service.SVCRun) && subService.ParentServiceID == id {
t.Errorf("Was expecting child services to be stopped %v", subService)
}
}
}
func init() {
if mappingError != nil {
glog.Fatalf("error creating service mapping: %v", mappingError)
}
}
// RunShell runs a predefined service shell command via the service definition
func (a *api) RunShell(config ShellConfig) error {
client, err := a.connectDAO()
if err != nil {
return err
}
svc, err := a.GetService(config.ServiceID)
if err != nil {
return err
}
getSvc := func(svcID string) (service.Service, error) {
s := service.Service{}
err := client.GetService(svcID, &s)
return s, err
}
findChild := func(svcID, childName string) (service.Service, error) {
s := service.Service{}
err := client.FindChildService(dao.FindChildRequest{svcID, childName}, &s)
return s, err
}
if err := svc.EvaluateRunsTemplate(getSvc, findChild); err != nil {
fmt.Errorf("error evaluating service:%s Runs:%+v error:%s", svc.ID, svc.Runs, err)
}
command, ok := svc.Runs[config.Command]
if !ok {
return fmt.Errorf("command not found for service")
}
mounts, err := buildMounts(config.ServicedEndpoint, config.ServiceID, config.Mounts)
if err != nil {
return err
}
quotedArgs := utils.ShellQuoteArgs(config.Args)
command = strings.Join([]string{command, quotedArgs}, " ")
asUser := "******"
if config.Username != "" && config.Username != "root" {
asUser = fmt.Sprintf("su - %s -c ", config.Username)
}
cfg := shell.ProcessConfig{
ServiceID: config.ServiceID,
IsTTY: config.IsTTY,
SaveAs: config.SaveAs,
Mount: mounts,
Command: asUser + utils.ShellQuoteArg(command),
LogToStderr: config.LogToStderr,
}
cfg.LogStash.Enable = config.LogStash.Enable
cfg.LogStash.SettleTime, err = time.ParseDuration(config.LogStash.SettleTime)
if err != nil {
return err
}
cfg.LogStash.IdleFlushTime, err = time.ParseDuration(config.LogStash.IdleFlushTime)
if err != nil {
return err
}
// TODO: change me to use sockets
cmd, err := shell.StartDocker(&cfg, options.Endpoint)
if err != nil {
return fmt.Errorf("failed to connect to service: %s", err)
}
cmd.Stdin = os.Stdin
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
err = cmd.Run()
if _, ok := utils.GetExitStatus(err); !ok {
glog.Fatalf("abnormal termination from shell command: %s", err)
}
dockercli, err := a.connectDocker()
if err != nil {
glog.Fatalf("unable to connect to the docker service: %s", err)
}
exitcode, err := dockercli.WaitContainer(config.SaveAs)
if err != nil {
glog.Fatalf("failure waiting for container: %s", err)
}
container, err := dockercli.InspectContainer(config.SaveAs)
if err != nil {
glog.Fatalf("cannot acquire information about container: %s (%s)", config.SaveAs, err)
}
glog.V(2).Infof("Container ID: %s", container.ID)
switch exitcode {
case 0:
// Commit the container
label := ""
glog.V(0).Infof("Committing container")
if err := client.Commit(container.ID, &label); err != nil {
glog.Fatalf("Error committing container: %s (%s)", container.ID, err)
}
var layers = 0
if err := client.ImageLayerCount(container.Image, &layers); err != nil {
glog.Errorf("Counting layers for image %s", svc.ImageID)
}
if layers > layer.WARN_LAYER_COUNT {
glog.Warningf("Image '%s' number of layers (%d) approaching maximum (%d). Please squash image layers.",
svc.ImageID, layers, layer.MAX_LAYER_COUNT)
}
default:
// Delete the container
if err := dockercli.StopContainer(container.ID, 10); err != nil {
glog.Fatalf("failed to stop container: %s (%s)", container.ID, err)
} else if err := dockercli.RemoveContainer(dockerclient.RemoveContainerOptions{ID: container.ID}); err != nil {
glog.Fatalf("failed to remove container: %s (%s)", container.ID, err)
}
return fmt.Errorf("Command returned non-zero exit code %d. Container not commited.", exitcode)
}
return nil
}
func init() {
if mappingError != nil {
glog.Fatalf("error creating svcconfigfile mapping: %v", mappingError)
}
}
