Function generateRootfsOpts

pkg/cmd/container/create.go:450–571

(args []string, id string, ensured *imgutil.EnsuredImage, options types.ContainerCreateOptions)

}

func generateRootfsOpts(args []string, id string, ensured *imgutil.EnsuredImage, options types.ContainerCreateOptions) (opts []oci.SpecOpts, cOpts []containerd.NewContainerOpts, err error) {
	if !options.Rootfs {
		cOpts = append(cOpts,
			containerd.WithImage(ensured.Image),
			containerd.WithSnapshotter(ensured.Snapshotter),
			containerd.WithImageStopSignal(ensured.Image, "SIGTERM"),
		)

		if len(ensured.ImageConfig.Env) == 0 {
			opts = append(opts, oci.WithDefaultPathEnv)
		}
		for ind, env := range ensured.ImageConfig.Env {
			if strings.HasPrefix(env, "PATH=") {
				break
			}
			if ind == len(ensured.ImageConfig.Env)-1 {
				opts = append(opts, oci.WithDefaultPathEnv)
			}
		}
	} else {
		absRootfs, err := filepath.Abs(args[0])
		if err != nil {
			return nil, nil, err
		}
		opts = append(opts, oci.WithRootFSPath(absRootfs), oci.WithDefaultPathEnv)
	}

	entrypointPath := ""
	if ensured != nil {
		if len(ensured.ImageConfig.Entrypoint) > 0 {
			entrypointPath = ensured.ImageConfig.Entrypoint[0]
		} else if len(ensured.ImageConfig.Cmd) > 0 {
			entrypointPath = ensured.ImageConfig.Cmd[0]
		}
	}

	if !options.Rootfs && !options.EntrypointChanged {
		opts = append(opts, oci.WithImageConfigArgs(ensured.Image, args[1:]))
	} else {
		if !options.Rootfs {
			opts = append(opts, oci.WithImageConfig(ensured.Image))
		}
		var processArgs []string
		if len(options.Entrypoint) != 0 {
			processArgs = append(processArgs, options.Entrypoint...)
		}
		if len(args) > 1 {
			processArgs = append(processArgs, args[1:]...)
		}
		if len(processArgs) == 0 {
			// error message is from Podman
			return nil, nil, errors.New("no command or entrypoint provided, and no CMD or ENTRYPOINT from image")
		}

		entrypointPath = processArgs[0]

		opts = append(opts, oci.WithProcessArgs(processArgs...))
	}