Method IsServing

client/client.go:311–323

IsServing returns true if the client can successfully connect to the containerd daemon and the healthcheck service returns the SERVING response. This call will block if a transient error is encountered during connection. A timeout can be set in the context to ensure it returns early.

(ctx context.Context)

// connection. A timeout can be set in the context to ensure it returns
// early.
func (c *Client) IsServing(ctx context.Context) (bool, error) {
	c.connMu.Lock()
	if c.conn == nil {
		c.connMu.Unlock()
		return false, fmt.Errorf("no grpc connection available: %w", errdefs.ErrUnavailable)
	}
	c.connMu.Unlock()
	r, err := c.HealthService().Check(ctx, &grpc_health_v1.HealthCheckRequest{}, grpc.WaitForReady(true))
	if err != nil {
		return false, err
	}
	return r.Status == grpc_health_v1.HealthCheckResponse_SERVING, nil
}

// Containers returns all containers created in containerd
func (c *Client) Containers(ctx context.Context, filters ...string) ([]Container, error) {