diff options
| -rw-r--r-- | cmd/podman/pods/create.go | 4 | ||||
| -rw-r--r-- | completions/bash/podman | 1 | ||||
| -rw-r--r-- | docs/source/markdown/podman-pod-create.1.md | 4 | ||||
| -rw-r--r-- | libpod/options.go | 12 | ||||
| -rw-r--r-- | libpod/pod.go | 1 | ||||
| -rw-r--r-- | libpod/runtime_pod_infra_linux.go | 3 | ||||
| -rw-r--r-- | pkg/domain/entities/pods.go | 22 | ||||
| -rw-r--r-- | pkg/specgen/generate/pod_create.go | 3 | ||||
| -rw-r--r-- | pkg/specgen/podspecgen.go | 3 | ||||
| -rw-r--r-- | test/e2e/pod_start_test.go | 19 |
10 files changed, 63 insertions, 9 deletions
diff --git a/cmd/podman/pods/create.go b/cmd/podman/pods/create.go index 5ed5fa57c..51b7a7d52 100644 --- a/cmd/podman/pods/create.go +++ b/cmd/podman/pods/create.go @@ -53,6 +53,7 @@ func init() { flags.AddFlagSet(common.GetNetFlags()) flags.StringVar(&createOptions.CGroupParent, "cgroup-parent", "", "Set parent cgroup for the pod") flags.BoolVar(&createOptions.Infra, "infra", true, "Create an infra container associated with the pod to share namespaces with") + flags.StringVar(&createOptions.InfraConmonPidFile, "infra-conmon-pidfile", "", "Path to the file that will receive the POD of the infra container's conmon") flags.StringVar(&createOptions.InfraImage, "infra-image", containerConfig.Engine.InfraImage, "The image of the infra container to associate with the pod") flags.StringVar(&createOptions.InfraCommand, "infra-command", containerConfig.Engine.InfraCommand, "The command to run on the infra container when the pod is started") flags.StringSliceVar(&labelFile, "label-file", []string{}, "Read in a line delimited file of labels") @@ -83,6 +84,9 @@ func create(cmd *cobra.Command, args []string) error { if !createOptions.Infra { logrus.Debugf("Not creating an infra container") + if cmd.Flag("infra-conmon-pidfile").Changed { + return errors.New("cannot set infra-conmon-pid without an infra container") + } if cmd.Flag("infra-command").Changed { return errors.New("cannot set infra-command without an infra container") } diff --git a/completions/bash/podman b/completions/bash/podman index 0e4b60b14..6dbe645fe 100644 --- a/completions/bash/podman +++ b/completions/bash/podman @@ -3098,6 +3098,7 @@ _podman_pod_create() { --dns-opt --dns-search --infra-command + --infra-conmon-pidfile --infra-image --ip --label-file diff --git a/docs/source/markdown/podman-pod-create.1.md b/docs/source/markdown/podman-pod-create.1.md index 489c9b32e..de6b600f0 100644 --- a/docs/source/markdown/podman-pod-create.1.md +++ b/docs/source/markdown/podman-pod-create.1.md @@ -47,6 +47,10 @@ Set a hostname to the pod Create an infra container and associate it with the pod. An infra container is a lightweight container used to coordinate the shared kernel namespace of a pod. Default: true. +**--infra-conmon-pidfile**=*file* + +Write the pid of the infra container's **conmon** process to a file. As **conmon** runs in a separate process than Podman, this is necessary when using systemd to manage Podman containers and pods. + **--infra-command**=*command* The command that will be run to start the infra container. Default: "/pause". diff --git a/libpod/options.go b/libpod/options.go index 75d098815..5a0f60093 100644 --- a/libpod/options.go +++ b/libpod/options.go @@ -1550,6 +1550,18 @@ func WithPodCreateCommand() PodCreateOption { } } +// WithInfraConmonPidFile sets the path to a custom conmon PID file for the +// infra container. +func WithInfraConmonPidFile(path string) PodCreateOption { + return func(pod *Pod) error { + if pod.valid { + return define.ErrPodFinalized + } + pod.config.InfraContainer.ConmonPidFile = path + return nil + } +} + // WithPodLabels sets the labels of a pod. func WithPodLabels(labels map[string]string) PodCreateOption { return func(pod *Pod) error { diff --git a/libpod/pod.go b/libpod/pod.go index 38fe1fd2c..7af78fa07 100644 --- a/libpod/pod.go +++ b/libpod/pod.go @@ -83,6 +83,7 @@ type podState struct { // InfraContainerConfig is the configuration for the pod's infra container type InfraContainerConfig struct { + ConmonPidFile string `json:"conmonPidFile"` HasInfraContainer bool `json:"makeInfraContainer"` HostNetwork bool `json:"infraHostNetwork,omitempty"` PortBindings []ocicni.PortMapping `json:"infraPortBindings"` diff --git a/libpod/runtime_pod_infra_linux.go b/libpod/runtime_pod_infra_linux.go index 06a7b3936..a0dee3aa1 100644 --- a/libpod/runtime_pod_infra_linux.go +++ b/libpod/runtime_pod_infra_linux.go @@ -130,6 +130,9 @@ func (r *Runtime) makeInfraContainer(ctx context.Context, p *Pod, imgName, rawIm options = append(options, WithRootFSFromImage(imgID, imgName, rawImageName)) options = append(options, WithName(containerName)) options = append(options, withIsInfra()) + if len(p.config.InfraContainer.ConmonPidFile) > 0 { + options = append(options, WithConmonPidFile(p.config.InfraContainer.ConmonPidFile)) + } return r.newContainer(ctx, g.Config, options...) } diff --git a/pkg/domain/entities/pods.go b/pkg/domain/entities/pods.go index a85333c75..fc76ddd41 100644 --- a/pkg/domain/entities/pods.go +++ b/pkg/domain/entities/pods.go @@ -103,15 +103,16 @@ type PodRmReport struct { } type PodCreateOptions struct { - CGroupParent string - Hostname string - Infra bool - InfraImage string - InfraCommand string - Labels map[string]string - Name string - Net *NetOptions - Share []string + CGroupParent string + Hostname string + Infra bool + InfraImage string + InfraCommand string + InfraConmonPidFile string + Labels map[string]string + Name string + Net *NetOptions + Share []string } type PodCreateReport struct { @@ -127,6 +128,9 @@ func (p PodCreateOptions) ToPodSpecGen(s *specgen.PodSpecGenerator) { if len(p.InfraCommand) > 0 { s.InfraCommand = strings.Split(p.InfraCommand, " ") } + if len(p.InfraConmonPidFile) > 0 { + s.InfraConmonPidFile = p.InfraConmonPidFile + } s.InfraImage = p.InfraImage s.SharedNamespaces = p.Share diff --git a/pkg/specgen/generate/pod_create.go b/pkg/specgen/generate/pod_create.go index 51b7835b2..5ccb1ba80 100644 --- a/pkg/specgen/generate/pod_create.go +++ b/pkg/specgen/generate/pod_create.go @@ -94,5 +94,8 @@ func createPodOptions(p *specgen.PodSpecGenerator) ([]libpod.PodCreateOption, er } options = append(options, libpod.WithPodCgroups()) options = append(options, libpod.WithPodCreateCommand()) + if len(p.InfraConmonPidFile) > 0 { + options = append(options, libpod.WithInfraConmonPidFile(p.InfraConmonPidFile)) + } return options, nil } diff --git a/pkg/specgen/podspecgen.go b/pkg/specgen/podspecgen.go index 11976233a..600d27004 100644 --- a/pkg/specgen/podspecgen.go +++ b/pkg/specgen/podspecgen.go @@ -25,6 +25,9 @@ type PodBasicConfig struct { // InfraCommand and InfraImages in this struct. // Optional. NoInfra bool `json:"no_infra,omitempty"` + // InfraConmonPidFile is a custom path to store the infra container's + // conmon PID. + InfraConmonPidFile string `json:"infra_conmon_pid_file,omitempty"` // InfraCommand sets the command that will be used to start the infra // container. // If not set, the default set in the Libpod configuration file will be diff --git a/test/e2e/pod_start_test.go b/test/e2e/pod_start_test.go index 4502a76ed..99285d1e1 100644 --- a/test/e2e/pod_start_test.go +++ b/test/e2e/pod_start_test.go @@ -193,4 +193,23 @@ var _ = Describe("Podman pod start", func() { Expect(session.ExitCode()).To(Equal(0)) Expect(podmanTest.NumberOfContainersRunning()).To(Equal(20)) // 10*(infra+top) }) + + It("podman pod create --infra-conmon-pod create + start", func() { + tmpDir, err := ioutil.TempDir("", "") + Expect(err).To(BeNil()) + tmpFile := tmpDir + "podID" + defer os.RemoveAll(tmpDir) + + podName := "rudolph" + // Create a pod with --infra-conmon-pid. + session := podmanTest.Podman([]string{"pod", "create", "--name", podName, "--infra-conmon-pidfile", tmpFile}) + session.WaitWithDefaultTimeout() + Expect(session.ExitCode()).To(Equal(0)) + + session = podmanTest.Podman([]string{"pod", "start", podName}) + session.WaitWithDefaultTimeout() + Expect(session.ExitCode()).To(Equal(0)) + Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1)) // infra + }) + }) |