Browse code

Move "create" to daemon/create.go

This is part of an effort to break apart the deprecated server/ package

Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)

Solomon Hykes authored on 2014/08/01 05:36:42
Showing 4 changed files
1 1
new file mode 100644
... ...
@@ -0,0 +1,86 @@
0
+package daemon
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+
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+import (
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+	"github.com/docker/docker/engine"
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+	"github.com/docker/docker/graph"
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+	"github.com/docker/docker/pkg/parsers"
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+	"github.com/docker/docker/runconfig"
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+)
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+
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+func (daemon *Daemon) ContainerCreate(job *engine.Job) engine.Status {
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+	var name string
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+	if len(job.Args) == 1 {
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+		name = job.Args[0]
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+	} else if len(job.Args) > 1 {
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+		return job.Errorf("Usage: %s", job.Name)
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+	}
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+	config := runconfig.ContainerConfigFromJob(job)
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+	if config.Memory != 0 && config.Memory < 524288 {
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+		return job.Errorf("Minimum memory limit allowed is 512k")
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+	}
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+	if config.Memory > 0 && !daemon.SystemConfig().MemoryLimit {
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+		job.Errorf("Your kernel does not support memory limit capabilities. Limitation discarded.\n")
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+		config.Memory = 0
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+	}
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+	if config.Memory > 0 && !daemon.SystemConfig().SwapLimit {
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+		job.Errorf("Your kernel does not support swap limit capabilities. Limitation discarded.\n")
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+		config.MemorySwap = -1
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+	}
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+	container, buildWarnings, err := daemon.Create(config, name)
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+	if err != nil {
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+		if daemon.Graph().IsNotExist(err) {
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+			_, tag := parsers.ParseRepositoryTag(config.Image)
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+			if tag == "" {
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+				tag = graph.DEFAULTTAG
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+			}
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+			return job.Errorf("No such image: %s (tag: %s)", config.Image, tag)
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+		}
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+		return job.Error(err)
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+	}
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+	if !container.Config.NetworkDisabled && daemon.SystemConfig().IPv4ForwardingDisabled {
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+		job.Errorf("IPv4 forwarding is disabled.\n")
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+	}
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+	job.Eng.Job("log", "create", container.ID, daemon.Repositories().ImageName(container.Image)).Run()
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+	// FIXME: this is necessary because daemon.Create might return a nil container
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+	// with a non-nil error. This should not happen! Once it's fixed we
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+	// can remove this workaround.
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+	if container != nil {
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+		job.Printf("%s\n", container.ID)
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+	}
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+	for _, warning := range buildWarnings {
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+		job.Errorf("%s\n", warning)
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+	}
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+	return engine.StatusOK
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+}
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+
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+// Create creates a new container from the given configuration with a given name.
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+func (daemon *Daemon) Create(config *runconfig.Config, name string) (*Container, []string, error) {
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+	var (
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+		container *Container
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+		warnings  []string
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+	)
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+
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+	img, err := daemon.repositories.LookupImage(config.Image)
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+	if err != nil {
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+		return nil, nil, err
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+	}
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+	if err := daemon.checkImageDepth(img); err != nil {
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+		return nil, nil, err
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+	}
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+	if warnings, err = daemon.mergeAndVerifyConfig(config, img); err != nil {
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+		return nil, nil, err
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+	}
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+	if container, err = daemon.newContainer(name, config, img); err != nil {
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+		return nil, nil, err
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+	}
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+	if err := daemon.createRootfs(container, img); err != nil {
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+		return nil, nil, err
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+	}
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+	if err := container.ToDisk(); err != nil {
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+		return nil, nil, err
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+	}
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+	if err := daemon.Register(container); err != nil {
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+		return nil, nil, err
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+	}
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+	return container, warnings, nil
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+}
... ...
@@ -123,6 +123,9 @@ func (daemon *Daemon) Install(eng *engine.Engine) error {
123 123
 	if err := eng.Register("export", daemon.ContainerExport); err != nil {
124 124
 		return err
125 125
 	}
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+	if err := eng.Register("create", daemon.ContainerCreate); err != nil {
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+		return err
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+	}
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 	return nil
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 }
128 131
 
... ...
@@ -403,38 +406,6 @@ func (daemon *Daemon) restore() error {
403 403
 	return nil
404 404
 }
405 405
 
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-// Create creates a new container from the given configuration with a given name.
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-func (daemon *Daemon) Create(config *runconfig.Config, name string) (*Container, []string, error) {
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-	var (
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-		container *Container
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-		warnings  []string
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-	)
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-
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-	img, err := daemon.repositories.LookupImage(config.Image)
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-	if err != nil {
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-		return nil, nil, err
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-	}
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-	if err := daemon.checkImageDepth(img); err != nil {
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-		return nil, nil, err
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-	}
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-	if warnings, err = daemon.mergeAndVerifyConfig(config, img); err != nil {
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-		return nil, nil, err
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-	}
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-	if container, err = daemon.newContainer(name, config, img); err != nil {
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-		return nil, nil, err
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-	}
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-	if err := daemon.createRootfs(container, img); err != nil {
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-		return nil, nil, err
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-	}
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-	if err := container.ToDisk(); err != nil {
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-		return nil, nil, err
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-	}
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-	if err := daemon.Register(container); err != nil {
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-		return nil, nil, err
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-	}
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-	return container, warnings, nil
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-}
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-
438 406
 func (daemon *Daemon) checkImageDepth(img *image.Image) error {
439 407
 	// We add 2 layers to the depth because the container's rw and
440 408
 	// init layer add to the restriction
... ...
@@ -21,9 +21,7 @@ import (
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 	"github.com/docker/docker/daemon"
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 	"github.com/docker/docker/engine"
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-	"github.com/docker/docker/graph"
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 	"github.com/docker/docker/pkg/graphdb"
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-	"github.com/docker/docker/pkg/parsers"
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 	"github.com/docker/docker/pkg/tailfile"
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 	"github.com/docker/docker/runconfig"
29 27
 	"github.com/docker/docker/utils"
... ...
@@ -263,52 +261,6 @@ func (srv *Server) ContainerCommit(job *engine.Job) engine.Status {
263 263
 	return engine.StatusOK
264 264
 }
265 265
 
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-func (srv *Server) ContainerCreate(job *engine.Job) engine.Status {
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-	var name string
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-	if len(job.Args) == 1 {
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-		name = job.Args[0]
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-	} else if len(job.Args) > 1 {
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-		return job.Errorf("Usage: %s", job.Name)
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-	}
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-	config := runconfig.ContainerConfigFromJob(job)
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-	if config.Memory != 0 && config.Memory < 524288 {
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-		return job.Errorf("Minimum memory limit allowed is 512k")
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-	}
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-	if config.Memory > 0 && !srv.daemon.SystemConfig().MemoryLimit {
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-		job.Errorf("Your kernel does not support memory limit capabilities. Limitation discarded.\n")
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-		config.Memory = 0
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-	}
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-	if config.Memory > 0 && !srv.daemon.SystemConfig().SwapLimit {
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-		job.Errorf("Your kernel does not support swap limit capabilities. Limitation discarded.\n")
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-		config.MemorySwap = -1
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-	}
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-	container, buildWarnings, err := srv.daemon.Create(config, name)
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-	if err != nil {
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-		if srv.daemon.Graph().IsNotExist(err) {
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-			_, tag := parsers.ParseRepositoryTag(config.Image)
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-			if tag == "" {
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-				tag = graph.DEFAULTTAG
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-			}
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-			return job.Errorf("No such image: %s (tag: %s)", config.Image, tag)
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-		}
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-		return job.Error(err)
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-	}
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-	if !container.Config.NetworkDisabled && srv.daemon.SystemConfig().IPv4ForwardingDisabled {
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-		job.Errorf("IPv4 forwarding is disabled.\n")
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-	}
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-	srv.LogEvent("create", container.ID, srv.daemon.Repositories().ImageName(container.Image))
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-	// FIXME: this is necessary because daemon.Create might return a nil container
301
-	// with a non-nil error. This should not happen! Once it's fixed we
302
-	// can remove this workaround.
303
-	if container != nil {
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-		job.Printf("%s\n", container.ID)
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-	}
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-	for _, warning := range buildWarnings {
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-		job.Errorf("%s\n", warning)
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-	}
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-	return engine.StatusOK
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-}
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-
312 266
 func (srv *Server) ContainerRestart(job *engine.Job) engine.Status {
313 267
 	if len(job.Args) != 1 {
314 268
 		return job.Errorf("Usage: %s CONTAINER\n", job.Name)
... ...
@@ -86,7 +86,6 @@ func InitServer(job *engine.Job) engine.Status {
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 	job.Eng.Hack_SetGlobalVar("httpapi.daemon", srv.daemon)
87 87
 
88 88
 	for name, handler := range map[string]engine.Handler{
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-		"create":           srv.ContainerCreate,
90 89
 		"stop":             srv.ContainerStop,
91 90
 		"restart":          srv.ContainerRestart,
92 91
 		"start":            srv.ContainerStart,