api

type ContainerManager interface {
	// CreateContainer creates a new container in specified PodSandbox.
	CreateContainer(podSandboxID string, config *runtimeApi.ContainerConfig, sandboxConfig *runtimeApi.PodSandboxConfig) (string, error)
	// StartContainer starts the container.
	StartContainer(containerID string) error
	// StopContainer stops a running container with a grace period (i.e., timeout).
	StopContainer(containerID string, timeout int64) error
	// RemoveContainer removes the container.
	RemoveContainer(containerID string) error
	// ListContainers lists all containers by filters.
	ListContainers(filter *runtimeApi.ContainerFilter) ([]*runtimeApi.Container, error)
	// ContainerStatus returns the status of the container.
	ContainerStatus(containerID string) (*runtimeApi.ContainerStatus, error)
	// Exec executes a command in the container.
	Exec(containerID string, cmd []string, tty bool, stdin io.Reader, stdout, stderr io.WriteCloser) error
}

type ImageManagerService interface {
	// ListImages lists the existing images.
	ListImages(filter *runtimeApi.ImageFilter) ([]*runtimeApi.Image, error)
	// ImageStatus returns the status of the image.
	ImageStatus(image *runtimeApi.ImageSpec) (*runtimeApi.Image, error)
	// PullImage pulls an image with the authentication config.
	PullImage(image *runtimeApi.ImageSpec, auth *runtimeApi.AuthConfig) error
	// RemoveImage removes the image.
	RemoveImage(image *runtimeApi.ImageSpec) error
}

type PodSandboxManager interface {
	// CreatePodSandbox creates a pod-level sandbox.
	// The definition of PodSandbox is at https://github.com/kubernetes/kubernetes/pull/25899
	CreatePodSandbox(config *runtimeApi.PodSandboxConfig) (string, error)
	// StopPodSandbox stops the sandbox. If there are any running containers in the
	// sandbox, they should be force terminated.
	StopPodSandbox(podSandboxID string) error
	// RemovePodSandbox removes the sandbox. If there are running containers in the
	// sandbox, they should be forcibly removed.
	RemovePodSandbox(podSandboxID string) error
	// PodSandboxStatus returns the Status of the PodSandbox.
	PodSandboxStatus(podSandboxID string) (*runtimeApi.PodSandboxStatus, error)
	// ListPodSandbox returns a list of Sandbox.
	ListPodSandbox(filter *runtimeApi.PodSandboxFilter) ([]*runtimeApi.PodSandbox, error)
}

type RuntimeService interface {
	RuntimeVersioner
	ContainerManager
	PodSandboxManager
}

type RuntimeVersioner interface {
	// Version returns the runtime name, runtime version and runtime API version
	Version(apiVersion string) (*runtimeApi.VersionResponse, error)
}