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| // Runtime service defines the public APIs for remote container runtimes
service RuntimeService {
// Version returns the runtime name, runtime version, and runtime API version.
rpc Version(VersionRequest) returns (VersionResponse) {}
// RunPodSandbox creates and starts a pod-level sandbox. Runtimes must ensure
// the sandbox is in the ready state on success.
rpc RunPodSandbox(RunPodSandboxRequest) returns (RunPodSandboxResponse) {}
// StopPodSandbox stops any running process that is part of the sandbox and
// reclaims network resources (e.g., IP addresses) allocated to the sandbox.
// If there are any running containers in the sandbox, they must be forcibly
// terminated.
// This call is idempotent, and must not return an error if all relevant
// resources have already been reclaimed. kubelet will call StopPodSandbox
// at least once before calling RemovePodSandbox. It will also attempt to
// reclaim resources eagerly, as soon as a sandbox is not needed. Hence,
// multiple StopPodSandbox calls are expected.
rpc StopPodSandbox(StopPodSandboxRequest) returns (StopPodSandboxResponse) {}
// RemovePodSandbox removes the sandbox. If there are any running containers
// in the sandbox, they must be forcibly terminated and removed.
// This call is idempotent, and must not return an error if the sandbox has
// already been removed.
rpc RemovePodSandbox(RemovePodSandboxRequest) returns (RemovePodSandboxResponse) {}
// PodSandboxStatus returns the status of the PodSandbox. If the PodSandbox is not
// present, returns an error.
rpc PodSandboxStatus(PodSandboxStatusRequest) returns (PodSandboxStatusResponse) {}
// ListPodSandbox returns a list of PodSandboxes.
rpc ListPodSandbox(ListPodSandboxRequest) returns (ListPodSandboxResponse) {}
// CreateContainer creates a new container in specified PodSandbox
rpc CreateContainer(CreateContainerRequest) returns (CreateContainerResponse) {}
// StartContainer starts the container.
rpc StartContainer(StartContainerRequest) returns (StartContainerResponse) {}
// StopContainer stops a running container with a grace period (i.e., timeout).
// This call is idempotent, and must not return an error if the container has
// already been stopped.
// The runtime must forcibly kill the container after the grace period is
// reached.
rpc StopContainer(StopContainerRequest) returns (StopContainerResponse) {}
// RemoveContainer removes the container. If the container is running, the
// container must be forcibly removed.
// This call is idempotent, and must not return an error if the container has
// already been removed.
rpc RemoveContainer(RemoveContainerRequest) returns (RemoveContainerResponse) {}
// ListContainers lists all containers by filters.
rpc ListContainers(ListContainersRequest) returns (ListContainersResponse) {}
// ContainerStatus returns status of the container. If the container is not
// present, returns an error.
rpc ContainerStatus(ContainerStatusRequest) returns (ContainerStatusResponse) {}
// UpdateContainerResources updates ContainerConfig of the container.
rpc UpdateContainerResources(UpdateContainerResourcesRequest) returns (UpdateContainerResourcesResponse) {}
// ReopenContainerLog asks runtime to reopen the stdout/stderr log file
// for the container. This is often called after the log file has been
// rotated. If the container is not running, container runtime can choose
// to either create a new log file and return nil, or return an error.
// Once it returns error, new container log file MUST NOT be created.
rpc ReopenContainerLog(ReopenContainerLogRequest) returns (ReopenContainerLogResponse) {}
// ExecSync runs a command in a container synchronously.
rpc ExecSync(ExecSyncRequest) returns (ExecSyncResponse) {}
// Exec prepares a streaming endpoint to execute a command in the container.
rpc Exec(ExecRequest) returns (ExecResponse) {}
// Attach prepares a streaming endpoint to attach to a running container.
rpc Attach(AttachRequest) returns (AttachResponse) {}
// PortForward prepares a streaming endpoint to forward ports from a PodSandbox.
rpc PortForward(PortForwardRequest) returns (PortForwardResponse) {}
// ContainerStats returns stats of the container. If the container does not
// exist, the call returns an error.
rpc ContainerStats(ContainerStatsRequest) returns (ContainerStatsResponse) {}
// ListContainerStats returns stats of all running containers.
rpc ListContainerStats(ListContainerStatsRequest) returns (ListContainerStatsResponse) {}
// PodSandboxStats returns stats of the pod sandbox. If the pod sandbox does not
// exist, the call returns an error.
rpc PodSandboxStats(PodSandboxStatsRequest) returns (PodSandboxStatsResponse) {}
// ListPodSandboxStats returns stats of the pod sandboxes matching a filter.
rpc ListPodSandboxStats(ListPodSandboxStatsRequest) returns (ListPodSandboxStatsResponse) {}
// UpdateRuntimeConfig updates the runtime configuration based on the given request.
rpc UpdateRuntimeConfig(UpdateRuntimeConfigRequest) returns (UpdateRuntimeConfigResponse) {}
// Status returns the status of the runtime.
rpc Status(StatusRequest) returns (StatusResponse) {}
}
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