77 lines
2.3 KiB
Go
77 lines
2.3 KiB
Go
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// +build linux
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package main
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import (
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"encoding/json"
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"os"
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"time"
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"github.com/opencontainers/runc/libcontainer/utils"
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"github.com/urfave/cli"
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)
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// cState represents the platform agnostic pieces relating to a running
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// container's status and state. Note: The fields in this structure adhere to
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// the opencontainers/runtime-spec/specs-go requirement for json fields that must be returned
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// in a state command.
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type cState struct {
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// Version is the OCI version for the container
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Version string `json:"ociVersion"`
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// ID is the container ID
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ID string `json:"id"`
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// InitProcessPid is the init process id in the parent namespace
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InitProcessPid int `json:"pid"`
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// Bundle is the path on the filesystem to the bundle
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Bundle string `json:"bundlePath"`
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// Rootfs is a path to a directory containing the container's root filesystem.
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Rootfs string `json:"rootfsPath"`
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// Status is the current status of the container, running, paused, ...
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Status string `json:"status"`
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// Created is the unix timestamp for the creation time of the container in UTC
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Created time.Time `json:"created"`
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// Annotations is the user defined annotations added to the config.
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Annotations map[string]string `json:"annotations,omitempty"`
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}
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var stateCommand = cli.Command{
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Name: "state",
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Usage: "output the state of a container",
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ArgsUsage: `<container-id>
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Where "<container-id>" is your name for the instance of the container.`,
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Description: `The state command outputs current state information for the
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instance of a container.`,
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Action: func(context *cli.Context) error {
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container, err := getContainer(context)
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if err != nil {
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return err
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}
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containerStatus, err := container.Status()
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if err != nil {
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return err
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}
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state, err := container.State()
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if err != nil {
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return err
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}
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bundle, annotations := utils.Annotations(state.Config.Labels)
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cs := cState{
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Version: state.BaseState.Config.Version,
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ID: state.BaseState.ID,
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InitProcessPid: state.BaseState.InitProcessPid,
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Status: containerStatus.String(),
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Bundle: bundle,
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Rootfs: state.BaseState.Config.Rootfs,
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Created: state.BaseState.Created,
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Annotations: annotations,
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}
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data, err := json.MarshalIndent(cs, "", " ")
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if err != nil {
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return err
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}
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os.Stdout.Write(data)
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return nil
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},
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}
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