Function AppContext

cmd/ctr/commands/client.go:37–57

AppContext returns the context for a command. Should only be called once per command, near the start. This will ensure the namespace is picked up and set the timeout, if one is defined.

(cliContext *cli.Context)

// This will ensure the namespace is picked up and set the timeout, if one is
// defined.
func AppContext(cliContext *cli.Context) (context.Context, context.CancelFunc) {
	var (
		ctx       = cliContext.Context
		timeout   = cliContext.Duration("timeout")
		namespace = cliContext.String("namespace")
		cancel    context.CancelFunc
	)
	ctx = namespaces.WithNamespace(ctx, namespace)
	if timeout > 0 {
		ctx, cancel = context.WithTimeout(ctx, timeout)
	} else {
		ctx, cancel = context.WithCancel(ctx)
	}
	if tm, err := epoch.SourceDateEpoch(); err != nil {
		log.L.WithError(err).Warn("Failed to read SOURCE_DATE_EPOCH")
	} else if tm != nil {
		log.L.Debugf("Using SOURCE_DATE_EPOCH: %v", tm)
		ctx = epoch.WithSourceDateEpoch(ctx, tm)
	}
	return ctx, cancel
}

// NewClient returns a new containerd client
func NewClient(cliContext *cli.Context, opts ...containerd.Opt) (*containerd.Client, context.Context, context.CancelFunc, error) {