func (s *S) TestCreateContainerForward(c *gocheck.C) {
cmutex.Lock()
oldClusterNodes := clusterNodes
clusterNodes = map[string]string{
"server": "http://localhost:8081",
}
cmutex.Unlock()
defer func() {
cmutex.Lock()
clusterNodes = oldClusterNodes
cmutex.Unlock()
}()
err := newImage("tsuru/python", s.server.URL())
c.Assert(err, gocheck.IsNil)
client, err := dockerClient.NewClient(s.server.URL())
c.Assert(err, gocheck.IsNil)
images, err := client.ListImages(true)
c.Assert(err, gocheck.IsNil)
cmds := []string{"ps", "-ef"}
app := testing.NewFakeApp("myapp", "python", 1)
cont := container{Name: "myName", AppName: app.GetName(), Type: app.GetPlatform(), Status: "created"}
context := action.FWContext{Previous: cont, Params: []interface{}{app, images[0].ID, cmds}}
r, err := createContainer.Forward(context)
c.Assert(err, gocheck.IsNil)
cont = r.(container)
defer cont.remove()
c.Assert(cont, gocheck.FitsTypeOf, container{})
c.Assert(cont.ID, gocheck.Not(gocheck.Equals), "")
c.Assert(cont.HostAddr, gocheck.Equals, "localhost")
dcli, err := dockerClient.NewClient(s.server.URL())
c.Assert(err, gocheck.IsNil)
cc, err := dcli.InspectContainer(cont.ID)
c.Assert(err, gocheck.IsNil)
c.Assert(cc.State.Running, gocheck.Equals, false)
}
func (s *SchedulerSuite) TestSchedulerSchedule(c *gocheck.C) {
server0, err := testing.NewServer(nil)
c.Assert(err, gocheck.IsNil)
defer server0.Stop()
server1, err := testing.NewServer(nil)
c.Assert(err, gocheck.IsNil)
defer server1.Stop()
server2, err := testing.NewServer(nil)
c.Assert(err, gocheck.IsNil)
defer server2.Stop()
var buf bytes.Buffer
client, _ := dcli.NewClient(server0.URL())
client.PullImage(dcli.PullImageOptions{Repository: "tsuru/python"}, &buf)
client, _ = dcli.NewClient(server1.URL())
client.PullImage(dcli.PullImageOptions{Repository: "tsuru/python"}, &buf)
client, _ = dcli.NewClient(server2.URL())
client.PullImage(dcli.PullImageOptions{Repository: "tsuru/python"}, &buf)
a1 := app.App{Name: "impius", Teams: []string{"tsuruteam", "nodockerforme"}}
a2 := app.App{Name: "mirror", Teams: []string{"tsuruteam"}}
a3 := app.App{Name: "dedication", Teams: []string{"nodockerforme"}}
cont1 := container{ID: "1", Name: "impius1", AppName: a1.Name}
cont2 := container{ID: "2", Name: "mirror1", AppName: a2.Name}
cont3 := container{ID: "3", Name: "dedication1", AppName: a3.Name}
err = s.storage.Apps().Insert(a1, a2, a3)
c.Assert(err, gocheck.IsNil)
defer s.storage.Apps().RemoveAll(bson.M{"name": bson.M{"$in": []string{a1.Name, a2.Name, a3.Name}}})
coll := s.storage.Collection(schedulerCollection)
err = coll.Insert(
node{ID: "server0", Address: server0.URL(), Teams: []string{"tsuruteam"}},
node{ID: "server1", Address: server1.URL(), Teams: []string{"tsuruteam"}},
node{ID: "server2", Address: server2.URL()},
)
c.Assert(err, gocheck.IsNil)
defer coll.RemoveAll(bson.M{"_id": bson.M{"$in": []string{"server0", "server1", "server2"}}})
contColl := collection()
err = contColl.Insert(
cont1, cont2, cont3,
)
c.Assert(err, gocheck.IsNil)
defer contColl.RemoveAll(bson.M{"name": bson.M{"$in": []string{cont1.Name, cont2.Name, cont3.Name}}})
var scheduler segregatedScheduler
config := docker.Config{Cmd: []string{"/usr/sbin/sshd", "-D"}, Image: "tsuru/python"}
opts := dcli.CreateContainerOptions{Name: cont1.Name}
node, _, err := scheduler.Schedule(opts, &config)
c.Assert(err, gocheck.IsNil)
c.Check(node, gocheck.Equals, "server1")
config = docker.Config{Cmd: []string{"/usr/sbin/sshd", "-D"}, Image: "tsuru/python"}
opts = dcli.CreateContainerOptions{Name: cont2.Name}
node, _, err = scheduler.Schedule(opts, &config)
c.Assert(err, gocheck.IsNil)
c.Check(node == "server0" || node == "server1", gocheck.Equals, true)
config = docker.Config{Cmd: []string{"/usr/sbin/sshd", "-D"}, Image: "tsuru/python"}
opts = dcli.CreateContainerOptions{Name: cont3.Name}
node, _, err = scheduler.Schedule(opts, &config)
c.Assert(err, gocheck.IsNil)
c.Check(node, gocheck.Equals, "server2")
}
func NewDockerClient(endpoint string) (*docker.Client, error) {
if strings.HasPrefix(endpoint, "unix:") {
return docker.NewClient(endpoint)
} else if tlsVerify || tlsEnabled() {
if tlsVerify {
if e, err := pathExists(tlsCaCert); !e || err != nil {
return nil, errors.New("TLS verification was requested, but CA cert does not exist")
}
}
return docker.NewTLSClient(endpoint, tlsCert, tlsKey, tlsCaCert)
}
return docker.NewClient(endpoint)
}
func (s *S) TestNewContainer(c *gocheck.C) {
oldClusterNodes := clusterNodes
clusterNodes = map[string]string{"server": s.server.URL()}
defer func() { clusterNodes = oldClusterNodes }()
err := newImage("tsuru/python", s.server.URL())
c.Assert(err, gocheck.IsNil)
app := testing.NewFakeApp("app-name", "python", 1)
rtesting.FakeRouter.AddBackend(app.GetName())
defer rtesting.FakeRouter.RemoveBackend(app.GetName())
cont, err := newContainer(app, getImage(app), []string{"docker", "run"})
c.Assert(err, gocheck.IsNil)
defer s.removeTestContainer(&cont)
c.Assert(cont.ID, gocheck.Not(gocheck.Equals), "")
c.Assert(cont, gocheck.FitsTypeOf, container{})
c.Assert(cont.AppName, gocheck.Equals, app.GetName())
c.Assert(cont.Type, gocheck.Equals, app.GetPlatform())
u, _ := url.Parse(s.server.URL())
host, _, _ := net.SplitHostPort(u.Host)
c.Assert(cont.HostAddr, gocheck.Equals, host)
port, err := getPort()
c.Assert(err, gocheck.IsNil)
c.Assert(cont.Port, gocheck.Equals, port)
user, err := config.GetString("docker:ssh:user")
c.Assert(err, gocheck.IsNil)
dcli, _ := dockerClient.NewClient(s.server.URL())
container, err := dcli.InspectContainer(cont.ID)
c.Assert(err, gocheck.IsNil)
c.Assert(container.Config.User, gocheck.Equals, user)
}
func (d *DockerDriver) Open(ctx *ExecContext, handleID string) (DriverHandle, error) {
cleanupContainer, err := strconv.ParseBool(d.config.ReadDefault("docker.cleanup.container", "true"))
if err != nil {
return nil, fmt.Errorf("Unable to parse docker.cleanup.container: %s", err)
}
cleanupImage, err := strconv.ParseBool(d.config.ReadDefault("docker.cleanup.image", "true"))
if err != nil {
return nil, fmt.Errorf("Unable to parse docker.cleanup.image: %s", err)
}
// Split the handle
pidBytes := []byte(strings.TrimPrefix(handleID, "DOCKER:"))
pid := &dockerPID{}
err = json.Unmarshal(pidBytes, pid)
if err != nil {
return nil, fmt.Errorf("Failed to parse handle '%s': %v", handleID, err)
}
d.logger.Printf("[INFO] driver.docker: re-attaching to docker process: %s", handleID)
// Initialize docker API client
dockerEndpoint := d.config.ReadDefault("docker.endpoint", "unix:///var/run/docker.sock")
client, err := docker.NewClient(dockerEndpoint)
if err != nil {
return nil, fmt.Errorf("Failed to connect to docker.endpoint (%s): %s", dockerEndpoint, err)
}
// Look for a running container with this ID
containers, err := client.ListContainers(docker.ListContainersOptions{
Filters: map[string][]string{
"id": []string{pid.ContainerID},
},
})
if err != nil {
return nil, fmt.Errorf("Failed to query for container %s: %v", pid.ContainerID, err)
}
found := false
for _, container := range containers {
if container.ID == pid.ContainerID {
found = true
}
}
if !found {
return nil, fmt.Errorf("Failed to find container %s: %v", pid.ContainerID, err)
}
// Return a driver handle
h := &dockerHandle{
client: client,
cleanupContainer: cleanupContainer,
cleanupImage: cleanupImage,
logger: d.logger,
imageID: pid.ImageID,
containerID: pid.ContainerID,
doneCh: make(chan struct{}),
waitCh: make(chan error, 1),
}
go h.run()
return h, nil
}
// ListContainers returns a slice of all containers in the cluster matching the
// given criteria.
func (c *Cluster) ListContainers(opts dcli.ListContainersOptions) ([]docker.APIContainers, error) {
nodes, err := c.scheduler.Nodes()
if err != nil {
return nil, err
}
var wg sync.WaitGroup
result := make(chan []docker.APIContainers, len(nodes))
errs := make(chan error, len(nodes))
for _, n := range nodes {
wg.Add(1)
client, _ := dcli.NewClient(n.Address)
go func(n node) {
defer wg.Done()
if containers, err := n.ListContainers(opts); err != nil {
errs <- err
} else {
result <- containers
}
}(node{id: n.ID, Client: client})
}
wg.Wait()
var group []docker.APIContainers
for {
select {
case containers := <-result:
group = append(group, containers...)
case err = <-errs:
default:
return group, err
}
}
}
func (s *S) TestProvisionRemoveOldUnitForward(c *gocheck.C) {
err := newImage("tsuru/python", s.server.URL())
c.Assert(err, gocheck.IsNil)
container, err := s.newContainer(nil)
c.Assert(err, gocheck.IsNil)
defer rtesting.FakeRouter.RemoveBackend(container.AppName)
client, err := dockerClient.NewClient(s.server.URL())
c.Assert(err, gocheck.IsNil)
err = client.StartContainer(container.ID, nil)
c.Assert(err, gocheck.IsNil)
app := testing.NewFakeApp(container.AppName, "python", 0)
unit := provision.Unit{
Name: container.ID,
AppName: app.GetName(),
Type: app.GetPlatform(),
Ip: container.HostAddr,
Status: provision.StatusBuilding,
}
context := action.FWContext{Params: []interface{}{app, "", *container}, Previous: unit}
result, err := provisionRemoveOldUnit.Forward(context)
c.Assert(err, gocheck.IsNil)
retUnit := result.(provision.Unit)
c.Assert(retUnit, gocheck.DeepEquals, unit)
_, err = getContainer(container.ID)
c.Assert(err, gocheck.NotNil)
}
func createClient() {
var (
dockerEndpoint string
err error
)
if dockerEndpoint = os.Getenv("DOCKER_HOST"); len(dockerEndpoint) == 0 {
dockerEndpoint = "unix:///var/run/docker.sock"
}
if debug {
log.Println("Connecting to Docker daemon via:", dockerEndpoint)
}
client, err = docker.NewClient(dockerEndpoint)
if err != nil {
log.Fatal(err)
}
dockerVersion, err = client.Version()
if err != nil {
log.Fatal("Could not connect to Docker daemon: ", err)
}
if debug {
showDockerVersion()
}
}
func NewServiceRuntime(configStore *config.Store, dns, hostIP string) *ServiceRuntime {
var err error
var client *docker.Client
dockerZero, err := dockerBridgeIp()
if err != nil {
log.Fatalf("ERROR: Unable to find docker0 bridge: %s", err)
}
endpoint := GetEndpoint()
if certPath := os.Getenv("DOCKER_CERT_PATH"); certPath != "" {
cert := certPath + "/cert.pem"
key := certPath + "/key.pem"
ca := certPath + "/ca.pem"
client, err = docker.NewTLSClient(endpoint, cert, key, ca)
} else {
client, err = docker.NewClient(endpoint)
}
if err != nil {
log.Fatalf("ERROR: Unable to initialize docker client: %s: %s", err, endpoint)
}
client.HTTPClient.Timeout = 60 * time.Second
return &ServiceRuntime{
dns: dns,
configStore: configStore,
hostIP: hostIP,
dockerIP: dockerZero,
dockerClient: client,
}
}
// Run runs a slug process
func Run(slugUrl string, cmd ...string) (*dcli.Container, error) {
docker, err := dcli.NewClient(getRandomServer())
if err != nil {
return nil, err
}
port := strconv.Itoa(getRandomPort())
opts := dcli.CreateContainerOptions{
"",
&dcli.Config{
Cmd: cmd,
Env: []string{"PORT=" + port, "SLUG_URL=" + slugUrl},
PortSpecs: []string{port + "/tcp"},
Image: "flynn/slugrunner",
Tty: true,
},
}
container, err := docker.CreateContainer(opts)
if err != nil {
return nil, err
}
err = docker.StartContainer(container.ID, &dcli.HostConfig{})
if err != nil {
return nil, err
}
return docker.InspectContainer(container.ID)
}
func (s *S) TestRemoveUnitInSameHostAsAnotherUnitShouldEnqueueAnotherBind(c *gocheck.C) {
err := newImage("tsuru/python", s.server.URL())
c.Assert(err, gocheck.IsNil)
c1, err := s.newContainer(nil)
c.Assert(err, gocheck.IsNil)
c2, err := s.newContainer(nil)
c.Assert(err, gocheck.IsNil)
defer rtesting.FakeRouter.RemoveBackend(c1.AppName)
client, err := dockerClient.NewClient(s.server.URL())
c.Assert(err, gocheck.IsNil)
err = client.StartContainer(c1.ID, nil)
c.Assert(err, gocheck.IsNil)
a := testing.NewFakeApp(c1.AppName, "python", 0)
var p dockerProvisioner
err = p.RemoveUnit(a, c1.ID)
c.Assert(err, gocheck.IsNil)
_, err = getContainer(c1.ID)
c.Assert(err, gocheck.NotNil)
_, err = getContainer(c2.ID)
c.Assert(err, gocheck.IsNil)
q, err := getQueue()
c.Assert(err, gocheck.IsNil)
message, err := q.Get(1e6)
c.Assert(err, gocheck.IsNil)
expected := &queue.Message{Action: app.BindService, Args: []string{a.GetName(), c2.ID}}
c.Assert(message, gocheck.DeepEquals, expected)
}
func validateDockerInfo() (string, string) {
client, err := dclient.NewClient(*docker.ArgDockerEndpoint)
if err == nil {
info, err := client.Info()
if err == nil {
execDriver := info.Get("ExecutionDriver")
storageDriver := info.Get("Driver")
desc := fmt.Sprintf("Docker exec driver is %s. Storage driver is %s.\n", execDriver, storageDriver)
if docker.UseSystemd() {
desc += "\tsystemd is being used to create cgroups.\n"
} else {
desc += "\tCgroups are being created through cgroup filesystem.\n"
}
if strings.Contains(execDriver, "native") {
stateFile := docker.DockerStateDir()
if !utils.FileExists(stateFile) {
desc += fmt.Sprintf("\tDocker container state directory %q is not accessible.\n", stateFile)
return Unsupported, desc
}
desc += fmt.Sprintf("\tDocker container state directory is at %q and is accessible.\n", stateFile)
return Recommended, desc
} else if strings.Contains(execDriver, "lxc") {
return Supported, desc
}
return Unknown, desc
}
}
return Unknown, "Docker remote API not reachable\n\t"
}
func (s *S) TestProvisionerStopSkipAlreadyStoppedContainers(c *gocheck.C) {
dcli, _ := dockerClient.NewClient(s.server.URL())
app := testing.NewFakeApp("almah", "static", 2)
p := dockerProvisioner{}
container, err := s.newContainer(&newContainerOpts{AppName: app.GetName()})
c.Assert(err, gocheck.IsNil)
defer s.removeTestContainer(container)
err = dcli.StartContainer(container.ID, nil)
c.Assert(err, gocheck.IsNil)
dockerContainer, err := dcli.InspectContainer(container.ID)
c.Assert(err, gocheck.IsNil)
c.Assert(dockerContainer.State.Running, gocheck.Equals, true)
container2, err := s.newContainer(&newContainerOpts{AppName: app.GetName()})
c.Assert(err, gocheck.IsNil)
defer s.removeTestContainer(container2)
err = dcli.StartContainer(container2.ID, nil)
c.Assert(err, gocheck.IsNil)
err = dcli.StopContainer(container2.ID, 1)
c.Assert(err, gocheck.IsNil)
container2.setStatus(provision.StatusStopped.String())
dockerContainer2, err := dcli.InspectContainer(container2.ID)
c.Assert(err, gocheck.IsNil)
c.Assert(dockerContainer2.State.Running, gocheck.Equals, false)
err = p.Stop(app)
c.Assert(err, gocheck.IsNil)
dockerContainer, err = dcli.InspectContainer(container.ID)
c.Assert(err, gocheck.IsNil)
c.Assert(dockerContainer.State.Running, gocheck.Equals, false)
dockerContainer2, err = dcli.InspectContainer(container2.ID)
c.Assert(err, gocheck.IsNil)
c.Assert(dockerContainer2.State.Running, gocheck.Equals, false)
}
func NewClient(endpoint string) (*dockerClient.Client, error) {
client, err := dockerClient.NewClient(endpoint)
if err != nil {
return nil, err
}
retry := false
for i := 0; i < (MAX_WAIT / INTERVAL); i++ {
_, err = client.Info()
if err == nil {
break
}
retry = true
log.Infof("Waiting for Docker at %s", endpoint)
time.Sleep(INTERVAL * time.Millisecond)
}
if err != nil {
return nil, err
}
if retry {
log.Infof("Connected to Docker at %s", endpoint)
}
return client, nil
}
func CreateCassandraAndStart(name, port string) (*docker.Container, error) {
endpoint := "unix:///var/run/docker.sock"
client, err := docker.NewClient(endpoint)
if err != nil {
return nil, err
}
hostConf := &docker.HostConfig{
PortBindings: map[docker.Port][]docker.PortBinding{
docker.Port("9042/tcp"): []docker.PortBinding{{
HostIP: "0.0.0.0",
HostPort: port,
}},
},
}
/*hostConf := &docker.HostConfig{
PublishAllPorts: true,
}*/
opts := docker.CreateContainerOptions{
Name: name,
Config: &docker.Config{
Image: "spotify/cassandra:latest",
},
HostConfig: hostConf,
}
container, err := client.CreateContainer(opts)
if err != nil {
return nil, err
}
return container, client.StartContainer(container.ID, hostConf)
}
func main() {
fmt.Println("dockerapi started...")
time.Sleep(time.Millisecond * 5000)
fmt.Println("action: " + ACTION)
fmt.Println("containers: " + CONTAINERS)
var containers = strings.Split(CONTAINERS, ",")
var docker *dockerapi.Client
var err error
docker, err = dockerapi.NewClient(DOCKER_HOST)
if err != nil {
fmt.Println(err.Error())
}
err = docker.Ping()
for i := range containers {
fmt.Println(ACTION + " issued for " + containers[i])
switch ACTION {
case "stop":
err = docker.StopContainer(containers[i], 5)
case "start":
err = docker.StartContainer(containers[i], nil)
default:
fmt.Println(ACTION + " unsupported action")
}
if err != nil {
fmt.Println(err.Error())
}
time.Sleep(time.Millisecond * 2000)
}
}
func (d *DockerDriver) Fingerprint(cfg *config.Config, node *structs.Node) (bool, error) {
// Initialize docker API client
dockerEndpoint := d.config.ReadDefault("docker.endpoint", "unix:///var/run/docker.sock")
client, err := docker.NewClient(dockerEndpoint)
if err != nil {
return false, nil
}
_, err = strconv.ParseBool(d.config.ReadDefault("docker.cleanup.container", "true"))
if err != nil {
return false, fmt.Errorf("Unable to parse docker.cleanup.container: %s", err)
}
_, err = strconv.ParseBool(d.config.ReadDefault("docker.cleanup.image", "true"))
if err != nil {
return false, fmt.Errorf("Unable to parse docker.cleanup.image: %s", err)
}
env, err := client.Version()
if err != nil {
// Check the "no such file" error if the unix file is missing
if strings.Contains(err.Error(), "no such file") {
return false, nil
}
// We connected to the daemon but couldn't read the version so something
// is broken.
return false, err
}
node.Attributes["driver.docker"] = "true"
node.Attributes["driver.docker.version"] = env.Get("Version")
return true, nil
}
func newDockerClient() (*docker.Client, error) {
if len(*tlscert) == 0 {
return docker.NewClient(*serverIP)
} else {
return docker.NewTLSClient(*serverIP, *tlscert, *tlskey, *tlscacert)
}
}
func testDockerClientNames(t *testing.T) {
assert := require.New(t)
client, err := dockerClient.NewClient(config.DOCKER_HOST)
assert.NoError(err, "")
c, err := client.CreateContainer(dockerClient.CreateContainerOptions{
Name: "foo",
Config: &dockerClient.Config{
Image: "ubuntu",
},
})
assert.NoError(err, "")
assert.Equal("foo", c.Name)
c2, err := client.InspectContainer(c.ID)
assert.NoError(err, "")
assert.Equal("/foo", c2.Name)
c2, err = inspect(client, c.ID)
assert.NoError(err, "")
assert.Equal("foo", c2.Name)
client.RemoveContainer(dockerClient.RemoveContainerOptions{
ID: c2.ID,
Force: true,
})
}
func DockerStop(w rest.ResponseWriter, r *rest.Request) {
logit.Info.Println("DockerStop called")
req := DockerStopRequest{}
err := r.DecodeJsonPayload(&req)
if err != nil {
logit.Error.Println(err.Error())
rest.Error(w, err.Error(), http.StatusInternalServerError)
return
}
docker, err3 := dockerapi.NewClient("unix://var/run/docker.sock")
if err3 != nil {
logit.Error.Println("can't get connection to docker socket")
rest.Error(w, err3.Error(), http.StatusInternalServerError)
return
}
err3 = docker.StopContainer(req.ContainerName, 10)
if err3 != nil {
logit.Error.Println("can't stop container " + req.ContainerName)
rest.Error(w, err3.Error(), http.StatusInternalServerError)
return
}
var response DockerStopResponse
response.Output = "success"
w.WriteJson(&response)
}
func Init() {
docker, err := dcli.NewClient("http://127.0.0.1:4243")
DockerClient = docker
if err != nil {
revel.ERROR.Fatal(err)
}
}
// New creates a new execution engine using the yaml config files in the
// specified directory. Only disableApparmor for development, docker alone isn't
// sufficient to fully sandbox the code.
func New(confPath string, disableApparmor bool) (result *Engine, err error) {
result = &Engine{}
configs, err := filepath.Glob(confPath + "/lang-*.yml")
if err != nil {
return
}
if len(configs) < 1 {
err = fmt.Errorf("no languages found at path '%s'", confPath)
return
}
result.client, err = docker.NewClient(endpoint)
if err != nil {
return
}
for _, config := range configs {
var lang *Language
lang, err = loadLanguage(config)
if err != nil {
err = fmt.Errorf("Error loading language '%s': %s", config, err)
// fail everything if one language fails to load
return
}
lang.client = result.client
if disableApparmor {
lang.disableAppArmor()
}
result.languages = append(result.languages, lang)
}
return
}
func (s *S) newContainer() (*container, error) {
container := container{
AppName: "container",
ID: "id",
IP: "10.10.10.10",
HostPort: "3333",
Port: "8888",
}
rtesting.FakeRouter.AddBackend(container.AppName)
rtesting.FakeRouter.AddRoute(container.AppName, container.getAddress())
client, err := dockerClient.NewClient(s.server.URL())
if err != nil {
return nil, err
}
config := docker.Config{
Image: "tsuru/python",
Cmd: []string{"ps"},
PortSpecs: []string{"8888"},
}
c, err := client.CreateContainer(&config)
if err != nil {
return nil, err
}
container.ID = c.ID
err = s.conn.Collection(s.collName).Insert(&container)
if err != nil {
return nil, err
}
return &container, err
}
func init() {
var err error
client, err = docker.NewClient("unix:///var/run/docker.sock")
if err != nil {
fmt.Fprintf(os.Stderr, "Error connecting to docker: %s\n", err.Error())
}
}
func main() {
flag.Parse()
log.SetOutput(os.Stdout)
log.SetLevel(log.DebugLevel)
var client *docker.Client
if os.Getenv("DOCKER_HOST") != "" {
var err error
certPath := os.Getenv("DOCKER_CERT_PATH")
client, err = docker.NewTLSClient(os.Getenv("DOCKER_HOST"), path.Join(certPath, "cert.pem"), path.Join(certPath, "key.pem"), path.Join(certPath, "ca.pem"))
if err != nil {
log.Fatal(err)
}
} else {
var err error
client, err = docker.NewClient("unix:///var/run/docker.sock")
if err != nil {
log.Fatal(err)
}
}
handler := Handler{docker: client, domain: fmt.Sprintf("%s.", *domain)}
server := dns.Server{}
server.Handler = &handler
server.Net = *network
server.Addr = *addr
err := server.ListenAndServe()
if err != nil {
log.Fatal(err)
}
}
func main() {
host := os.Getenv("DOCKER_HOST")
if host == "" {
log.Fatalln("Please provide DOCKER_HOST environment variable!")
}
client, err := docker.NewClient(host)
if err != nil {
log.Fatalln(err)
}
gateway := NewGateway(client)
if gateway.DefaultDomain == "" {
log.Fatalln("Please provide GW_DOMAIN environment variable!")
}
listener := NewListener(client, gateway)
listener.Init()
go listener.Start()
listenHost := getEnvVar("GW_HOST", "0.0.0.0")
listenPort := getEnvVar("GW_PORT", "2377")
err = gateway.Start(listenHost + ":" + listenPort)
if err != nil {
log.Fatalln(err)
}
}
// dockerClient creates *docker.Client. In test / dev mode we can use ENV vars
// to connect to the docker daemon. In production mode we will read
// docker.endpoint from the config file.
func (d *DockerDriver) dockerClient() (*docker.Client, error) {
if client != nil {
return client, nil
}
var err error
createClient.Do(func() {
// Default to using whatever is configured in docker.endpoint. If this is
// not specified we'll fall back on NewClientFromEnv which reads config from
// the DOCKER_* environment variables DOCKER_HOST, DOCKER_TLS_VERIFY, and
// DOCKER_CERT_PATH. This allows us to lock down the config in production
// but also accept the standard ENV configs for dev and test.
dockerEndpoint := d.config.Read("docker.endpoint")
if dockerEndpoint != "" {
cert := d.config.Read("docker.tls.cert")
key := d.config.Read("docker.tls.key")
ca := d.config.Read("docker.tls.ca")
if cert+key+ca != "" {
d.logger.Printf("[DEBUG] driver.docker: using TLS client connection to %s", dockerEndpoint)
client, err = docker.NewTLSClient(dockerEndpoint, cert, key, ca)
} else {
d.logger.Printf("[DEBUG] driver.docker: using standard client connection to %s", dockerEndpoint)
client, err = docker.NewClient(dockerEndpoint)
}
return
}
d.logger.Println("[DEBUG] driver.docker: using client connection initialized from environment")
client, err = docker.NewClientFromEnv()
})
return client, err
}
func notmain() {
client, err := dcli.NewClient("http://127.0.0.1:4243")
if err != nil {
panic(err)
}
outReader, outWriter := io.Pipe()
errReader, errWriter := io.Pipe()
runner := NewRunner(client, "ruby", "puts \"yo i'm rubby #{7*7}\"")
runner.OutStream = outWriter
runner.ErrStream = errWriter
go tailOutput("stdout", outReader)
go tailOutput("stderr", errReader)
log.Println("Running code...")
if _, err := runner.Run(10000); err != nil {
panic(err)
}
outReader.Close()
errReader.Close()
time.Sleep(1e9)
}
// Get a *docker.Client, either using the endpoint passed in, or using
// DOCKER_HOST, DOCKER_TLS_VERIFY, and DOCKER_CERT path per their spec
func getDockerClient(dockerEndpoint string) (*docker.Client, error) {
if len(dockerEndpoint) > 0 {
glog.Infof("Connecting to docker on %s", dockerEndpoint)
return docker.NewClient(dockerEndpoint)
}
return docker.NewClientFromEnv()
}
func (s *S) TestRemoveContainerIgnoreErrors(c *gocheck.C) {
handler, cleanup := startSSHAgentServer("")
defer cleanup()
fexec := &etesting.FakeExecutor{}
setExecut(fexec)
defer setExecut(nil)
err := newImage("tsuru/python", s.server.URL())
c.Assert(err, gocheck.IsNil)
container, err := s.newContainer(nil)
c.Assert(err, gocheck.IsNil)
defer s.removeTestContainer(container)
client, _ := dockerClient.NewClient(s.server.URL())
err = client.RemoveContainer(container.ID)
c.Assert(err, gocheck.IsNil)
err = container.remove()
c.Assert(err, gocheck.IsNil)
c.Assert(handler.requests[0].Method, gocheck.Equals, "DELETE")
c.Assert(handler.requests[0].URL.Path, gocheck.Equals, "/container/"+container.IP)
coll := collection()
defer coll.Close()
err = coll.FindId(container.ID).One(&container)
c.Assert(err, gocheck.NotNil)
c.Assert(err.Error(), gocheck.Equals, "not found")
c.Assert(rtesting.FakeRouter.HasRoute(container.AppName, container.getAddress()), gocheck.Equals, false)
}