110 lines
3 KiB
Go
110 lines
3 KiB
Go
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package main
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import (
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"os"
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"path/filepath"
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"text/template"
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"github.com/kubernetes-incubator/cri-o/server"
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"github.com/opencontainers/runc/libcontainer/selinux"
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"github.com/urfave/cli"
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)
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const (
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ocidRoot = "/var/lib/ocid"
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conmonPath = "/usr/libexec/ocid/conmon"
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pausePath = "/usr/libexec/ocid/pause"
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)
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var commentedConfigTemplate = template.Must(template.New("config").Parse(`
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# The "ocid" table contains all of the server options.
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[ocid]
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# root is a path to the "root directory". OCID stores all of its state
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# data, including container images, in this directory.
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root = "{{ .Root }}"
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# sandbox_dir is the directory where ocid will store all of its sandbox
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# state and other information.
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sandbox_dir = "{{ .SandboxDir }}"
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# container_dir is the directory where ocid will store all of its
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# container state and other information.
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container_dir = "{{ .ContainerDir }}"
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# The "ocid.api" table contains settings for the kubelet/gRPC
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# interface (which is also used by ocic).
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[ocid.api]
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# listen is the path to the AF_LOCAL socket on which ocid will listen.
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listen = "{{ .Listen }}"
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# The "ocid.runtime" table contains settings pertaining to the OCI
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# runtime used and options for how to set up and manage the OCI runtime.
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[ocid.runtime]
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# runtime is a path to the OCI runtime which ocid will be using.
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runtime = "{{ .Runtime }}"
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# conmon is the path to conmon binary, used for managing the runtime.
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conmon = "{{ .Conmon }}"
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# selinux indicates whether or not SELinux will be used for pod
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# separation on the host. If you enable this flag, SELinux must be running
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# on the host.
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selinux = {{ .SELinux }}
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# The "ocid.image" table contains settings pertaining to the
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# management of OCI images.
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[ocid.image]
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# pause is the path to the statically linked pause container binary, used
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# as the entrypoint for infra containers.
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pause = "{{ .Pause }}"
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`))
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// DefaultConfig returns the default configuration for ocid.
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func DefaultConfig() *server.Config {
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return &server.Config{
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RootConfig: server.RootConfig{
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Root: ocidRoot,
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SandboxDir: filepath.Join(ocidRoot, "sandboxes"),
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ContainerDir: filepath.Join(ocidRoot, "containers"),
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},
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APIConfig: server.APIConfig{
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Listen: "/var/run/ocid.sock",
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},
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RuntimeConfig: server.RuntimeConfig{
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Runtime: "/usr/bin/runc",
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Conmon: conmonPath,
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SELinux: selinux.SelinuxEnabled(),
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},
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ImageConfig: server.ImageConfig{
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Pause: pausePath,
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ImageStore: filepath.Join(ocidRoot, "store"),
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},
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}
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}
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var configCommand = cli.Command{
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Name: "config",
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Usage: "generate ocid configuration files",
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Flags: []cli.Flag{
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cli.BoolFlag{
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Name: "default",
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Usage: "output the default configuration",
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},
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},
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Action: func(c *cli.Context) error {
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// At this point, app.Before has already parsed the user's chosen
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// config file. So no need to handle that here.
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config := c.App.Metadata["config"].(*server.Config)
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if c.Bool("default") {
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config = DefaultConfig()
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}
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// Output the commented config.
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return commentedConfigTemplate.ExecuteTemplate(os.Stdout, "config", config)
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},
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}
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