vendor: initial vendor

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>

vendor/github.com/containerd/containerd/api/services/containers/v1/containers.proto

@@ -0,0 +1,163 @@
+syntax = "proto3";
+
+package containerd.services.containers.v1;
+
+import weak "gogoproto/gogo.proto";
+import "google/protobuf/any.proto";
+import "google/protobuf/empty.proto";
+import "google/protobuf/field_mask.proto";
+import "google/protobuf/timestamp.proto";
+
+option go_package = "github.com/containerd/containerd/api/services/containers/v1;containers";
+
+// Containers provides metadata storage for containers used in the execution
+// service.
+//
+// The objects here provide an state-independent view of containers for use in
+// management and resource pinning. From that perspective, containers do not
+// have a "state" but rather this is the set of resources that will be
+// considered in use by the container.
+//
+// From the perspective of the execution service, these objects represent the
+// base parameters for creating a container process.
+//
+// In general, when looking to add fields for this type, first ask yourself
+// whether or not the function of the field has to do with runtime execution or
+// is invariant of the runtime state of the container. If it has to do with
+// runtime, or changes as the "container" is started and stops, it probably
+// doesn't belong on this object.
+service Containers {
+	rpc Get(GetContainerRequest) returns (GetContainerResponse);
+	rpc List(ListContainersRequest) returns (ListContainersResponse);
+	rpc ListStream(ListContainersRequest) returns (stream ListContainerMessage);
+	rpc Create(CreateContainerRequest) returns (CreateContainerResponse);
+	rpc Update(UpdateContainerRequest) returns (UpdateContainerResponse);
+	rpc Delete(DeleteContainerRequest) returns (google.protobuf.Empty);
+}
+
+message Container {
+	// ID is the user-specified identifier.
+	//
+	// This field may not be updated.
+	string id = 1;
+
+	// Labels provides an area to include arbitrary data on containers.
+	//
+	// The combined size of a key/value pair cannot exceed 4096 bytes.
+	//
+	// Note that to add a new value to this field, read the existing set and
+	// include the entire result in the update call.
+	map<string, string> labels  = 2;
+
+	// Image contains the reference of the image used to build the
+	// specification and snapshots for running this container.
+	//
+	// If this field is updated, the spec and rootfs needed to updated, as well.
+	string image = 3;
+
+	message Runtime {
+		// Name is the name of the runtime.
+		string name = 1;
+		// Options specify additional runtime initialization options.
+		google.protobuf.Any options = 2;
+	}
+	// Runtime specifies which runtime to use for executing this container.
+	Runtime runtime = 4;
+
+	// Spec to be used when creating the container. This is runtime specific.
+	google.protobuf.Any spec = 5;
+
+	// Snapshotter specifies the snapshotter name used for rootfs
+	string snapshotter = 6;
+
+	// SnapshotKey specifies the snapshot key to use for the container's root
+	// filesystem. When starting a task from this container, a caller should
+	// look up the mounts from the snapshot service and include those on the
+	// task create request.
+	//
+	// Snapshots referenced in this field will not be garbage collected.
+	//
+	// This field is set to empty when the rootfs is not a snapshot.
+	//
+	// This field may be updated.
+	string snapshot_key = 7;
+
+	// CreatedAt is the time the container was first created.
+	google.protobuf.Timestamp created_at = 8 [(gogoproto.stdtime) = true, (gogoproto.nullable) = false];
+
+	// UpdatedAt is the last time the container was mutated.
+	google.protobuf.Timestamp updated_at = 9 [(gogoproto.stdtime) = true, (gogoproto.nullable) = false];
+
+	// Extensions allow clients to provide zero or more blobs that are directly
+	// associated with the container. One may provide protobuf, json, or other
+	// encoding formats. The primary use of this is to further decorate the
+	// container object with fields that may be specific to a client integration.
+	//
+	// The key portion of this map should identify a "name" for the extension
+	// that should be unique against other extensions. When updating extension
+	// data, one should only update the specified extension using field paths
+	// to select a specific map key.
+	map<string, google.protobuf.Any> extensions = 10 [(gogoproto.nullable) = false];
+}
+
+message GetContainerRequest {
+	string id = 1;
+}
+
+message GetContainerResponse {
+	Container container = 1 [(gogoproto.nullable) = false];
+}
+
+message ListContainersRequest {
+	// Filters contains one or more filters using the syntax defined in the
+	// containerd filter package.
+	//
+	// The returned result will be those that match any of the provided
+	// filters. Expanded, containers that match the following will be
+	// returned:
+	//
+	//   filters[0] or filters[1] or ... or filters[n-1] or filters[n]
+	//
+	// If filters is zero-length or nil, all items will be returned.
+	repeated string filters = 1;
+}
+
+message ListContainersResponse {
+	repeated Container containers = 1 [(gogoproto.nullable) = false];
+}
+
+message CreateContainerRequest {
+	Container container = 1 [(gogoproto.nullable) = false];
+}
+
+message CreateContainerResponse {
+	Container container = 1 [(gogoproto.nullable) = false];
+}
+
+// UpdateContainerRequest updates the metadata on one or more container.
+//
+// The operation should follow semantics described in
+// https://developers.google.com/protocol-buffers/docs/reference/csharp/class/google/protobuf/well-known-types/field-mask,
+// unless otherwise qualified.
+message UpdateContainerRequest {
+	// Container provides the target values, as declared by the mask, for the update.
+	//
+	// The ID field must be set.
+	Container container = 1 [(gogoproto.nullable) = false];
+
+	// UpdateMask specifies which fields to perform the update on. If empty,
+	// the operation applies to all fields.
+	google.protobuf.FieldMask update_mask = 2;
+}
+
+message UpdateContainerResponse {
+	Container container = 1 [(gogoproto.nullable) = false];
+}
+
+message DeleteContainerRequest {
+	string id = 1;
+}
+
+message ListContainerMessage {
+	Container container = 1;
+}

vendor/github.com/containerd/containerd/api/services/content/v1/content.proto

@@ -0,0 +1,318 @@
+syntax = "proto3";
+
+package containerd.services.content.v1;
+
+import weak "gogoproto/gogo.proto";
+import "google/protobuf/field_mask.proto";
+import "google/protobuf/timestamp.proto";
+import "google/protobuf/empty.proto";
+
+option go_package = "github.com/containerd/containerd/api/services/content/v1;content";
+
+// Content provides access to a content addressable storage system.
+service Content {
+	// Info returns information about a committed object.
+	//
+	// This call can be used for getting the size of content and checking for
+	// existence.
+	rpc Info(InfoRequest) returns (InfoResponse);
+
+	// Update updates content metadata.
+	//
+	// This call can be used to manage the mutable content labels. The
+	// immutable metadata such as digest, size, and committed at cannot
+	// be updated.
+	rpc Update(UpdateRequest) returns (UpdateResponse);
+
+	// List streams the entire set of content as Info objects and closes the
+	// stream.
+	//
+	// Typically, this will yield a large response, chunked into messages.
+	// Clients should make provisions to ensure they can handle the entire data
+	// set.
+	rpc List(ListContentRequest) returns (stream ListContentResponse);
+
+	// Delete will delete the referenced object.
+	rpc Delete(DeleteContentRequest) returns (google.protobuf.Empty);
+
+	// Read allows one to read an object based on the offset into the content.
+	//
+	// The requested data may be returned in one or more messages.
+	rpc Read(ReadContentRequest) returns (stream ReadContentResponse);
+
+	// Status returns the status for a single reference.
+	rpc Status(StatusRequest) returns (StatusResponse);
+
+	// ListStatuses returns the status of ongoing object ingestions, started via
+	// Write.
+	//
+	// Only those matching the regular expression will be provided in the
+	// response. If the provided regular expression is empty, all ingestions
+	// will be provided.
+	rpc ListStatuses(ListStatusesRequest) returns (ListStatusesResponse);
+
+	// Write begins or resumes writes to a resource identified by a unique ref.
+	// Only one active stream may exist at a time for each ref.
+	//
+	// Once a write stream has started, it may only write to a single ref, thus
+	// once a stream is started, the ref may be omitted on subsequent writes.
+	//
+	// For any write transaction represented by a ref, only a single write may
+	// be made to a given offset. If overlapping writes occur, it is an error.
+	// Writes should be sequential and implementations may throw an error if
+	// this is required.
+	//
+	// If expected_digest is set and already part of the content store, the
+	// write will fail.
+	//
+	// When completed, the commit flag should be set to true. If expected size
+	// or digest is set, the content will be validated against those values.
+	rpc Write(stream WriteContentRequest) returns (stream WriteContentResponse);
+
+	// Abort cancels the ongoing write named in the request. Any resources
+	// associated with the write will be collected.
+	rpc Abort(AbortRequest) returns (google.protobuf.Empty);
+}
+
+message Info {
+	// Digest is the hash identity of the blob.
+	string digest = 1 [(gogoproto.customtype) = "github.com/opencontainers/go-digest.Digest", (gogoproto.nullable) = false];
+
+	// Size is the total number of bytes in the blob.
+	int64 size = 2;
+
+	// CreatedAt provides the time at which the blob was committed.
+	google.protobuf.Timestamp created_at = 3 [(gogoproto.stdtime) = true, (gogoproto.nullable) = false];
+
+	// UpdatedAt provides the time the info was last updated.
+	google.protobuf.Timestamp updated_at = 4 [(gogoproto.stdtime) = true, (gogoproto.nullable) = false];
+
+	// Labels are arbitrary data on snapshots.
+	//
+	// The combined size of a key/value pair cannot exceed 4096 bytes.
+	map<string, string> labels  = 5;
+}
+
+message InfoRequest {
+	string digest = 1 [(gogoproto.customtype) = "github.com/opencontainers/go-digest.Digest", (gogoproto.nullable) = false];
+}
+
+message InfoResponse {
+	Info info = 1 [(gogoproto.nullable) = false];
+}
+
+message UpdateRequest {
+	Info info = 1 [(gogoproto.nullable) = false];
+
+	// UpdateMask specifies which fields to perform the update on. If empty,
+	// the operation applies to all fields.
+	//
+	// In info, Digest, Size, and CreatedAt are immutable,
+	// other field may be updated using this mask.
+	// If no mask is provided, all mutable field are updated.
+	google.protobuf.FieldMask update_mask = 2;
+}
+
+message UpdateResponse {
+	Info info = 1 [(gogoproto.nullable) = false];
+}
+
+message ListContentRequest {
+	// Filters contains one or more filters using the syntax defined in the
+	// containerd filter package.
+	//
+	// The returned result will be those that match any of the provided
+	// filters. Expanded, containers that match the following will be
+	// returned:
+	//
+	//   filters[0] or filters[1] or ... or filters[n-1] or filters[n]
+	//
+	// If filters is zero-length or nil, all items will be returned.
+	repeated string filters = 1;
+}
+
+message ListContentResponse {
+	repeated Info info = 1 [(gogoproto.nullable) = false];
+}
+
+message DeleteContentRequest {
+	// Digest specifies which content to delete.
+	string digest = 1 [(gogoproto.customtype) = "github.com/opencontainers/go-digest.Digest", (gogoproto.nullable) = false];
+}
+
+// ReadContentRequest defines the fields that make up a request to read a portion of
+// data from a stored object.
+message ReadContentRequest {
+	// Digest is the hash identity to read.
+	string digest = 1 [(gogoproto.customtype) = "github.com/opencontainers/go-digest.Digest", (gogoproto.nullable) = false];
+
+	// Offset specifies the number of bytes from the start at which to begin
+	// the read. If zero or less, the read will be from the start. This uses
+	// standard zero-indexed semantics.
+	int64 offset = 2;
+
+	// size is the total size of the read. If zero, the entire blob will be
+	// returned by the service.
+	int64 size = 3;
+}
+
+// ReadContentResponse carries byte data for a read request.
+message ReadContentResponse {
+	int64 offset = 1; // offset of the returned data
+	bytes data = 2; // actual data
+}
+
+message Status {
+	google.protobuf.Timestamp started_at = 1 [(gogoproto.stdtime) = true, (gogoproto.nullable) = false];
+	google.protobuf.Timestamp updated_at = 2 [(gogoproto.stdtime) = true, (gogoproto.nullable) = false];
+	string ref = 3;
+	int64 offset = 4;
+	int64 total = 5;
+	string expected = 6 [(gogoproto.customtype) = "github.com/opencontainers/go-digest.Digest", (gogoproto.nullable) = false];
+}
+
+
+message StatusRequest {
+	string ref = 1;
+}
+
+message StatusResponse {
+	Status status = 1;
+}
+
+message ListStatusesRequest {
+	repeated string filters = 1;
+}
+
+message ListStatusesResponse {
+	repeated Status statuses = 1 [(gogoproto.nullable) = false];
+}
+
+// WriteAction defines the behavior of a WriteRequest.
+enum WriteAction {
+	option (gogoproto.goproto_enum_prefix) = false;
+	option (gogoproto.enum_customname) = "WriteAction";
+
+	// WriteActionStat instructs the writer to return the current status while
+	// holding the lock on the write.
+	STAT = 0 [(gogoproto.enumvalue_customname) = "WriteActionStat"];
+
+	// WriteActionWrite sets the action for the write request to write data.
+	//
+	// Any data included will be written at the provided offset. The
+	// transaction will be left open for further writes.
+	//
+	// This is the default.
+	WRITE = 1 [(gogoproto.enumvalue_customname) = "WriteActionWrite"];
+
+	// WriteActionCommit will write any outstanding data in the message and
+	// commit the write, storing it under the digest.
+	//
+	// This can be used in a single message to send the data, verify it and
+	// commit it.
+	//
+	// This action will always terminate the write.
+	COMMIT = 2 [(gogoproto.enumvalue_customname) = "WriteActionCommit"];
+}
+
+// WriteContentRequest writes data to the request ref at offset.
+message WriteContentRequest {
+	// Action sets the behavior of the write.
+	//
+	// When this is a write and the ref is not yet allocated, the ref will be
+	// allocated and the data will be written at offset.
+	//
+	// If the action is write and the ref is allocated, it will accept data to
+	// an offset that has not yet been written.
+	//
+	// If the action is write and there is no data, the current write status
+	// will be returned. This works differently from status because the stream
+	// holds a lock.
+	WriteAction action = 1;
+
+	// Ref identifies the pre-commit object to write to.
+	string ref = 2;
+
+	// Total can be set to have the service validate the total size of the
+	// committed content.
+	//
+	// The latest value before or with the commit action message will be use to
+	// validate the content. If the offset overflows total, the service may
+	// report an error. It is only required on one message for the write.
+	//
+	// If the value is zero or less, no validation of the final content will be
+	// performed.
+	int64 total = 3;
+
+	// Expected can be set to have the service validate the final content against
+	// the provided digest.
+	//
+	// If the digest is already present in the object store, an AlreadyExists
+	// error will be returned.
+	//
+	// Only the latest version will be used to check the content against the
+	// digest. It is only required to include it on a single message, before or
+	// with the commit action message.
+	string expected = 4 [(gogoproto.customtype) = "github.com/opencontainers/go-digest.Digest", (gogoproto.nullable) = false];
+
+	// Offset specifies the number of bytes from the start at which to begin
+	// the write. For most implementations, this means from the start of the
+	// file. This uses standard, zero-indexed semantics.
+	//
+	// If the action is write, the remote may remove all previously written
+	// data after the offset. Implementations may support arbitrary offsets but
+	// MUST support reseting this value to zero with a write. If an
+	// implementation does not support a write at a particular offset, an
+	// OutOfRange error must be returned.
+	int64 offset = 5;
+
+	// Data is the actual bytes to be written.
+	//
+	// If this is empty and the message is not a commit, a response will be
+	// returned with the current write state.
+	bytes data = 6;
+
+	// Labels are arbitrary data on snapshots.
+	//
+	// The combined size of a key/value pair cannot exceed 4096 bytes.
+	map<string, string> labels  = 7;
+}
+
+// WriteContentResponse is returned on the culmination of a write call.
+message WriteContentResponse {
+	// Action contains the action for the final message of the stream. A writer
+	// should confirm that they match the intended result.
+	WriteAction action = 1;
+
+	// StartedAt provides the time at which the write began.
+	//
+	// This must be set for stat and commit write actions. All other write
+	// actions may omit this.
+	google.protobuf.Timestamp started_at = 2 [(gogoproto.stdtime) = true, (gogoproto.nullable) = false];
+
+	// UpdatedAt provides the last time of a successful write.
+	//
+	// This must be set for stat and commit write actions. All other write
+	// actions may omit this.
+	google.protobuf.Timestamp updated_at = 3 [(gogoproto.stdtime) = true, (gogoproto.nullable) = false];
+
+	// Offset is the current committed size for the write.
+	int64 offset = 4;
+
+	// Total provides the current, expected total size of the write.
+	//
+	// We include this to provide consistency with the Status structure on the
+	// client writer.
+	//
+	// This is only valid on the Stat and Commit response.
+	int64 total = 5;
+
+	// Digest, if present, includes the digest up to the currently committed
+	// bytes. If action is commit, this field will be set. It is implementation
+	// defined if this is set for other actions.
+	string digest = 6 [(gogoproto.customtype) = "github.com/opencontainers/go-digest.Digest", (gogoproto.nullable) = false];
+}
+
+message AbortRequest {
+	string ref = 1;
+}

vendor/github.com/containerd/containerd/api/services/diff/v1/diff.proto

@@ -0,0 +1,62 @@
+syntax = "proto3";
+
+package containerd.services.diff.v1;
+
+import weak "gogoproto/gogo.proto";
+import "github.com/containerd/containerd/api/types/mount.proto";
+import "github.com/containerd/containerd/api/types/descriptor.proto";
+
+option go_package = "github.com/containerd/containerd/api/services/diff/v1;diff";
+
+// Diff service creates and applies diffs
+service Diff {
+	// Apply applies the content associated with the provided digests onto
+	// the provided mounts. Archive content will be extracted and
+	// decompressed if necessary.
+	rpc Apply(ApplyRequest) returns (ApplyResponse);
+
+	// Diff creates a diff between the given mounts and uploads the result
+	// to the content store.
+	rpc Diff(DiffRequest) returns (DiffResponse);
+}
+
+message ApplyRequest {
+	// Diff is the descriptor of the diff to be extracted
+	containerd.types.Descriptor diff = 1;
+
+	repeated containerd.types.Mount mounts = 2;
+}
+
+message ApplyResponse {
+	// Applied is the descriptor for the object which was applied.
+	// If the input was a compressed blob then the result will be
+	// the descriptor for the uncompressed blob.
+	containerd.types.Descriptor applied = 1;
+}
+
+message DiffRequest {
+	// Left are the mounts which represent the older copy
+	// in which is the base of the computed changes.
+	repeated containerd.types.Mount left = 1;
+
+	// Right are the mounts which represents the newer copy
+	// in which changes from the left were made into.
+	repeated containerd.types.Mount right = 2;
+
+	// MediaType is the media type descriptor for the created diff
+	// object
+	string media_type = 3;
+
+	// Ref identifies the pre-commit content store object. This
+	// reference can be used to get the status from the content store.
+	string ref = 4;
+
+	// Labels are the labels to apply to the generated content
+	// on content store commit.
+	map<string, string> labels = 5;
+}
+
+message DiffResponse {
+	// Diff is the descriptor of the diff which can be applied
+	containerd.types.Descriptor diff = 3;
+}

vendor/github.com/containerd/containerd/api/services/events/v1/doc.go

@@ -0,0 +1,18 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+// Package events defines the event pushing and subscription service.
+package events

vendor/github.com/containerd/containerd/api/services/events/v1/events.proto

@@ -0,0 +1,56 @@
+syntax = "proto3";
+
+package containerd.services.events.v1;
+
+import weak "github.com/containerd/containerd/protobuf/plugin/fieldpath.proto";
+import weak "gogoproto/gogo.proto";
+import "google/protobuf/any.proto";
+import "google/protobuf/empty.proto";
+import "google/protobuf/timestamp.proto";
+
+option go_package = "github.com/containerd/containerd/api/services/events/v1;events";
+
+service Events {
+	// Publish an event to a topic.
+	//
+	// The event will be packed into a timestamp envelope with the namespace
+	// introspected from the context. The envelope will then be dispatched.
+	rpc Publish(PublishRequest) returns (google.protobuf.Empty);
+
+	// Forward sends an event that has already been packaged into an envelope
+	// with a timestamp and namespace.
+	//
+	// This is useful if earlier timestamping is required or when forwarding on
+	// behalf of another component, namespace or publisher.
+	rpc Forward(ForwardRequest) returns (google.protobuf.Empty);
+
+	// Subscribe to a stream of events, possibly returning only that match any
+	// of the provided filters.
+	//
+	// Unlike many other methods in containerd, subscribers will get messages
+	// from all namespaces unless otherwise specified. If this is not desired,
+	// a filter can be provided in the format 'namespace==<namespace>' to
+	// restrict the received events.
+	rpc Subscribe(SubscribeRequest) returns (stream Envelope);
+}
+
+message PublishRequest {
+	string topic = 1;
+	google.protobuf.Any event = 2;
+}
+
+message ForwardRequest {
+	Envelope envelope = 1;
+}
+
+message SubscribeRequest {
+	repeated string filters = 1;
+}
+
+message Envelope {
+	option (containerd.plugin.fieldpath) = true;
+	google.protobuf.Timestamp timestamp = 1 [(gogoproto.stdtime) = true, (gogoproto.nullable) = false];
+	string namespace = 2;
+	string topic = 3;
+	google.protobuf.Any event = 4;
+}

vendor/github.com/containerd/containerd/api/services/images/v1/docs.go

@@ -0,0 +1,17 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package images

vendor/github.com/containerd/containerd/api/services/images/v1/images.proto

@@ -0,0 +1,124 @@
+syntax = "proto3";
+
+package containerd.services.images.v1;
+
+import weak "gogoproto/gogo.proto";
+import "google/protobuf/empty.proto";
+import "google/protobuf/field_mask.proto";
+import "google/protobuf/timestamp.proto";
+import "github.com/containerd/containerd/api/types/descriptor.proto";
+
+option go_package = "github.com/containerd/containerd/api/services/images/v1;images";
+
+// Images is a service that allows one to register images with containerd.
+//
+// In containerd, an image is merely the mapping of a name to a content root,
+// described by a descriptor. The behavior and state of image is purely
+// dictated by the type of the descriptor.
+//
+// From the perspective of this service, these references are mostly shallow,
+// in that the existence of the required content won't be validated until
+// required by consuming services.
+//
+// As such, this can really be considered a "metadata service".
+service Images {
+	// Get returns an image by name.
+	rpc Get(GetImageRequest) returns (GetImageResponse);
+
+	// List returns a list of all images known to containerd.
+	rpc List(ListImagesRequest) returns (ListImagesResponse);
+
+	// Create an image record in the metadata store.
+	//
+	// The name of the image must be unique.
+	rpc Create(CreateImageRequest) returns (CreateImageResponse);
+
+	// Update assigns the name to a given target image based on the provided
+	// image.
+	rpc Update(UpdateImageRequest) returns (UpdateImageResponse);
+
+	// Delete deletes the image by name.
+	rpc Delete(DeleteImageRequest) returns (google.protobuf.Empty);
+}
+
+message Image {
+	// Name provides a unique name for the image.
+	//
+	// Containerd treats this as the primary identifier.
+	string name = 1;
+
+	// Labels provides free form labels for the image. These are runtime only
+	// and do not get inherited into the package image in any way.
+	//
+	// Labels may be updated using the field mask.
+	// The combined size of a key/value pair cannot exceed 4096 bytes.
+	map<string, string> labels = 2;
+
+	// Target describes the content entry point of the image.
+	containerd.types.Descriptor target = 3 [(gogoproto.nullable) = false];
+
+	// CreatedAt is the time the image was first created.
+	google.protobuf.Timestamp created_at = 7 [(gogoproto.stdtime) = true, (gogoproto.nullable) = false];
+
+	// UpdatedAt is the last time the image was mutated.
+	google.protobuf.Timestamp updated_at = 8 [(gogoproto.stdtime) = true, (gogoproto.nullable) = false];
+}
+
+message GetImageRequest {
+	string name = 1;
+}
+
+message GetImageResponse {
+	Image image = 1;
+}
+
+message CreateImageRequest {
+	Image image = 1 [(gogoproto.nullable) = false];
+}
+
+message CreateImageResponse {
+	Image image = 1 [(gogoproto.nullable) = false];
+}
+
+message UpdateImageRequest {
+	// Image provides a full or partial image for update.
+	//
+	// The name field must be set or an error will be returned.
+	Image image = 1 [(gogoproto.nullable) = false];
+
+	// UpdateMask specifies which fields to perform the update on. If empty,
+	// the operation applies to all fields.
+	google.protobuf.FieldMask update_mask = 2;
+}
+
+message UpdateImageResponse {
+	Image image = 1 [(gogoproto.nullable) = false];
+}
+
+message ListImagesRequest {
+	// Filters contains one or more filters using the syntax defined in the
+	// containerd filter package.
+	//
+	// The returned result will be those that match any of the provided
+	// filters. Expanded, images that match the following will be
+	// returned:
+	//
+	//   filters[0] or filters[1] or ... or filters[n-1] or filters[n]
+	//
+	// If filters is zero-length or nil, all items will be returned.
+	repeated string filters = 1;
+}
+
+message ListImagesResponse {
+	repeated Image images = 1 [(gogoproto.nullable) = false];
+}
+
+message DeleteImageRequest {
+	string name = 1;
+
+	// Sync indicates that the delete and cleanup should be done
+	// synchronously before returning to the caller
+	//
+	// Default is false
+	bool sync = 2;
+}

vendor/github.com/containerd/containerd/api/services/introspection/v1/doc.go

@@ -0,0 +1,17 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package introspection

vendor/github.com/containerd/containerd/api/services/introspection/v1/introspection.proto

@@ -0,0 +1,81 @@
+syntax = "proto3";
+
+package containerd.services.introspection.v1;
+
+import "github.com/containerd/containerd/api/types/platform.proto";
+import "google/rpc/status.proto";
+import weak "gogoproto/gogo.proto";
+
+option go_package = "github.com/containerd/containerd/api/services/introspection/v1;introspection";
+
+service Introspection {
+	// Plugins returns a list of plugins in containerd.
+	//
+	// Clients can use this to detect features and capabilities when using
+	// containerd.
+	rpc Plugins(PluginsRequest) returns (PluginsResponse);
+}
+
+message Plugin {
+	// Type defines the type of plugin.
+	//
+	// See package plugin for a list of possible values. Non core plugins may
+	// define their own values during registration.
+	string type = 1;
+
+	// ID identifies the plugin uniquely in the system.
+	string id = 2;
+
+	// Requires lists the plugin types required by this plugin.
+	repeated string requires = 3;
+
+	// Platforms enumerates the platforms this plugin will support.
+	//
+	// If values are provided here, the plugin will only be operable under the
+	// provided platforms.
+	//
+	// If this is empty, the plugin will work across all platforms.
+	//
+	// If the plugin prefers certain platforms over others, they should be
+	// listed from most to least preferred.
+	repeated types.Platform platforms = 4 [(gogoproto.nullable) = false];
+
+	// Exports allows plugins to provide values about state or configuration to
+	// interested parties.
+	//
+	// One example is exposing the configured path of a snapshotter plugin.
+	map<string, string> exports = 5;
+
+	// Capabilities allows plugins to communicate feature switches to allow
+	// clients to detect features that may not be on be default or may be
+	// different from version to version.
+	//
+	// Use this sparingly.
+	repeated string capabilities = 6;
+
+	// InitErr will be set if the plugin fails initialization.
+	//
+	// This means the plugin may have been registered but a non-terminal error
+	// was encountered during initialization.
+	//
+	// Plugins that have this value set cannot be used.
+	google.rpc.Status init_err = 7;
+}
+
+message PluginsRequest {
+	// Filters contains one or more filters using the syntax defined in the
+	// containerd filter package.
+	//
+	// The returned result will be those that match any of the provided
+	// filters. Expanded, plugins that match the following will be
+	// returned:
+	//
+	//   filters[0] or filters[1] or ... or filters[n-1] or filters[n]
+	//
+	// If filters is zero-length or nil, all items will be returned.
+	repeated string filters = 1;
+}
+
+message PluginsResponse {
+	repeated Plugin plugins = 1 [(gogoproto.nullable) = false];
+}

vendor/github.com/containerd/containerd/api/services/leases/v1/doc.go

@@ -0,0 +1,17 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package leases

vendor/github.com/containerd/containerd/api/services/leases/v1/leases.proto

@@ -0,0 +1,64 @@
+syntax = "proto3";
+
+package containerd.services.leases.v1;
+
+import weak "gogoproto/gogo.proto";
+import "google/protobuf/empty.proto";
+import "google/protobuf/timestamp.proto";
+
+option go_package = "github.com/containerd/containerd/api/services/leases/v1;leases";
+
+// Leases service manages resources leases within the metadata store.
+service Leases {
+	// Create creates a new lease for managing changes to metadata. A lease
+	// can be used to protect objects from being removed.
+	rpc Create(CreateRequest) returns (CreateResponse);
+
+	// Delete deletes the lease and makes any unreferenced objects created
+	// during the lease eligible for garbage collection if not referenced
+	// or retained by other resources during the lease.
+	rpc Delete(DeleteRequest) returns (google.protobuf.Empty);
+
+	// List lists all active leases, returning the full list of
+	// leases and optionally including the referenced resources.
+	rpc List(ListRequest) returns (ListResponse);
+}
+
+// Lease is an object which retains resources while it exists.
+message Lease {
+	string id = 1;
+
+	google.protobuf.Timestamp created_at = 2 [(gogoproto.stdtime) = true, (gogoproto.nullable) = false];
+
+	map<string, string> labels = 3;
+}
+
+message CreateRequest {
+	// ID is used to identity the lease, when the id is not set the service
+	// generates a random identifier for the lease.
+	string id = 1;
+
+	map<string, string> labels = 3;
+}
+
+message CreateResponse {
+	Lease lease = 1;
+}
+
+message DeleteRequest {
+	string id = 1;
+
+	// Sync indicates that the delete and cleanup should be done
+	// synchronously before returning to the caller
+	//
+	// Default is false
+	bool sync = 2;
+}
+
+message ListRequest {
+	repeated string filters = 1;
+}
+
+message ListResponse {
+	repeated Lease leases = 1;
+}

vendor/github.com/containerd/containerd/api/services/namespaces/v1/namespace.proto

@@ -0,0 +1,92 @@
+syntax = "proto3";
+
+package containerd.services.namespaces.v1;
+
+import weak "gogoproto/gogo.proto";
+import "google/protobuf/empty.proto";
+import "google/protobuf/field_mask.proto";
+
+option go_package = "github.com/containerd/containerd/api/services/namespaces/v1;namespaces";
+
+// Namespaces provides the ability to manipulate containerd namespaces.
+//
+// All objects in the system are required to be a member of a namespace. If a
+// namespace is deleted, all objects, including containers, images and
+// snapshots, will be deleted, as well.
+//
+// Unless otherwise noted, operations in containerd apply only to the namespace
+// supplied per request.
+//
+// I hope this goes without saying, but namespaces are themselves NOT
+// namespaced.
+service Namespaces {
+	rpc Get(GetNamespaceRequest) returns (GetNamespaceResponse);
+	rpc List(ListNamespacesRequest) returns (ListNamespacesResponse);
+	rpc Create(CreateNamespaceRequest) returns (CreateNamespaceResponse);
+	rpc Update(UpdateNamespaceRequest) returns (UpdateNamespaceResponse);
+	rpc Delete(DeleteNamespaceRequest) returns (google.protobuf.Empty);
+}
+
+message Namespace {
+	string name = 1;
+
+	// Labels provides an area to include arbitrary data on namespaces.
+	//
+	// The combined size of a key/value pair cannot exceed 4096 bytes.
+	//
+	// Note that to add a new value to this field, read the existing set and
+	// include the entire result in the update call.
+	map<string, string> labels  = 2;
+}
+
+message GetNamespaceRequest {
+	string name = 1;
+}
+
+message GetNamespaceResponse {
+	Namespace namespace = 1 [(gogoproto.nullable) = false];
+}
+
+message ListNamespacesRequest {
+	string filter = 1;
+}
+
+message ListNamespacesResponse {
+	repeated Namespace namespaces = 1 [(gogoproto.nullable) = false];
+}
+
+message CreateNamespaceRequest {
+	Namespace namespace = 1 [(gogoproto.nullable) = false];
+}
+
+message CreateNamespaceResponse {
+	Namespace namespace = 1 [(gogoproto.nullable) = false];
+}
+
+// UpdateNamespaceRequest updates the metadata for a namespace.
+//
+// The operation should follow semantics described in
+// https://developers.google.com/protocol-buffers/docs/reference/csharp/class/google/protobuf/well-known-types/field-mask,
+// unless otherwise qualified.
+message UpdateNamespaceRequest {
+	// Namespace provides the target value, as declared by the mask, for the update.
+	//
+	// The namespace field must be set.
+	Namespace namespace = 1 [(gogoproto.nullable) = false];
+
+	// UpdateMask specifies which fields to perform the update on. If empty,
+	// the operation applies to all fields.
+	//
+	// For the most part, this applies only to selectively updating labels on
+	// the namespace. While field masks are typically limited to ascii alphas
+	// and digits, we just take everything after the "labels." as the map key.
+	google.protobuf.FieldMask update_mask = 2;
+}
+
+message UpdateNamespaceResponse {
+	Namespace namespace = 1 [(gogoproto.nullable) = false];
+}
+
+message DeleteNamespaceRequest {
+	string name = 1;
+}

vendor/github.com/containerd/containerd/api/services/snapshots/v1/snapshots.proto

@@ -0,0 +1,150 @@
+syntax = "proto3";
+
+package containerd.services.snapshots.v1;
+
+import weak "gogoproto/gogo.proto";
+import "google/protobuf/empty.proto";
+import "google/protobuf/field_mask.proto";
+import "google/protobuf/timestamp.proto";
+import "github.com/containerd/containerd/api/types/mount.proto";
+
+option go_package = "github.com/containerd/containerd/api/services/snapshots/v1;snapshots";
+
+// Snapshot service manages snapshots
+service Snapshots {
+	rpc Prepare(PrepareSnapshotRequest) returns (PrepareSnapshotResponse);
+	rpc View(ViewSnapshotRequest) returns (ViewSnapshotResponse);
+	rpc Mounts(MountsRequest) returns (MountsResponse);
+	rpc Commit(CommitSnapshotRequest) returns (google.protobuf.Empty);
+	rpc Remove(RemoveSnapshotRequest) returns (google.protobuf.Empty);
+	rpc Stat(StatSnapshotRequest) returns (StatSnapshotResponse);
+	rpc Update(UpdateSnapshotRequest) returns (UpdateSnapshotResponse);
+	rpc List(ListSnapshotsRequest) returns (stream ListSnapshotsResponse);
+	rpc Usage(UsageRequest) returns (UsageResponse);
+}
+
+message PrepareSnapshotRequest {
+	string snapshotter = 1;
+	string key = 2;
+	string parent = 3;
+
+	// Labels are arbitrary data on snapshots.
+	//
+	// The combined size of a key/value pair cannot exceed 4096 bytes.
+	map<string, string> labels  = 4;
+}
+
+message PrepareSnapshotResponse {
+	repeated containerd.types.Mount mounts = 1;
+}
+
+message ViewSnapshotRequest {
+	string snapshotter = 1;
+	string key = 2;
+	string parent = 3;
+
+	// Labels are arbitrary data on snapshots.
+	//
+	// The combined size of a key/value pair cannot exceed 4096 bytes.
+	map<string, string> labels  = 4;
+}
+
+message ViewSnapshotResponse {
+	repeated containerd.types.Mount mounts = 1;
+}
+
+message MountsRequest {
+	string snapshotter = 1;
+	string key = 2;
+}
+
+message MountsResponse {
+	repeated containerd.types.Mount mounts = 1;
+}
+
+message RemoveSnapshotRequest {
+	string snapshotter = 1;
+	string key = 2;
+}
+
+message CommitSnapshotRequest {
+	string snapshotter = 1;
+	string name = 2;
+	string key = 3;
+
+	// Labels are arbitrary data on snapshots.
+	//
+	// The combined size of a key/value pair cannot exceed 4096 bytes.
+	map<string, string> labels  = 4;
+}
+
+message StatSnapshotRequest {
+	string snapshotter = 1;
+	string key = 2;
+}
+
+enum Kind {
+	option (gogoproto.goproto_enum_prefix) = false;
+	option (gogoproto.enum_customname) = "Kind";
+
+	UNKNOWN = 0 [(gogoproto.enumvalue_customname) = "KindUnknown"];
+	VIEW = 1 [(gogoproto.enumvalue_customname) = "KindView"];
+	ACTIVE = 2 [(gogoproto.enumvalue_customname) = "KindActive"];
+	COMMITTED = 3 [(gogoproto.enumvalue_customname) = "KindCommitted"];
+}
+
+message Info {
+	string name = 1;
+	string parent = 2;
+	Kind kind = 3;
+
+	// CreatedAt provides the time at which the snapshot was created.
+	google.protobuf.Timestamp created_at = 4 [(gogoproto.stdtime) = true, (gogoproto.nullable) = false];
+
+	// UpdatedAt provides the time the info was last updated.
+	google.protobuf.Timestamp updated_at = 5 [(gogoproto.stdtime) = true, (gogoproto.nullable) = false];
+
+	// Labels are arbitrary data on snapshots.
+	//
+	// The combined size of a key/value pair cannot exceed 4096 bytes.
+	map<string, string> labels  = 6;
+}
+
+message StatSnapshotResponse {
+	Info info = 1 [(gogoproto.nullable) = false];
+}
+
+message UpdateSnapshotRequest {
+	string snapshotter = 1;
+	Info info = 2 [(gogoproto.nullable) = false];
+
+	// UpdateMask specifies which fields to perform the update on. If empty,
+	// the operation applies to all fields.
+	//
+	// In info, Name, Parent, Kind, Created are immutable,
+	// other field may be updated using this mask.
+	// If no mask is provided, all mutable field are updated.
+	google.protobuf.FieldMask update_mask = 3;
+}
+
+message UpdateSnapshotResponse {
+	Info info = 1 [(gogoproto.nullable) = false];
+}
+
+message ListSnapshotsRequest{
+	string snapshotter = 1;
+}
+
+message ListSnapshotsResponse {
+	repeated Info info = 1 [(gogoproto.nullable) = false];
+}
+
+message UsageRequest {
+	string snapshotter = 1;
+	string key = 2;
+}
+
+message UsageResponse {
+	int64 size = 1;
+	int64 inodes = 2;
+}

vendor/github.com/containerd/containerd/api/services/tasks/v1/tasks.proto

@@ -0,0 +1,209 @@
+syntax = "proto3";
+
+package containerd.services.tasks.v1;
+
+import "google/protobuf/empty.proto";
+import "google/protobuf/any.proto";
+import weak "gogoproto/gogo.proto";
+import "github.com/containerd/containerd/api/types/mount.proto";
+import "github.com/containerd/containerd/api/types/metrics.proto";
+import "github.com/containerd/containerd/api/types/descriptor.proto";
+import "github.com/containerd/containerd/api/types/task/task.proto";
+import "google/protobuf/timestamp.proto";
+
+option go_package = "github.com/containerd/containerd/api/services/tasks/v1;tasks";
+
+service Tasks {
+	// Create a task.
+	rpc Create(CreateTaskRequest) returns (CreateTaskResponse);
+
+	// Start a process.
+	rpc Start(StartRequest) returns (StartResponse);
+
+	// Delete a task and on disk state.
+	rpc Delete(DeleteTaskRequest) returns (DeleteResponse);
+
+	rpc DeleteProcess(DeleteProcessRequest) returns (DeleteResponse);
+
+	rpc Get(GetRequest) returns (GetResponse);
+
+	rpc List(ListTasksRequest) returns (ListTasksResponse);
+
+	// Kill a task or process.
+	rpc Kill(KillRequest) returns (google.protobuf.Empty);
+
+	rpc Exec(ExecProcessRequest) returns (google.protobuf.Empty);
+
+	rpc ResizePty(ResizePtyRequest) returns (google.protobuf.Empty);
+
+	rpc CloseIO(CloseIORequest) returns (google.protobuf.Empty);
+
+	rpc Pause(PauseTaskRequest) returns (google.protobuf.Empty);
+
+	rpc Resume(ResumeTaskRequest) returns (google.protobuf.Empty);
+
+	rpc ListPids(ListPidsRequest) returns (ListPidsResponse);
+
+	rpc Checkpoint(CheckpointTaskRequest) returns (CheckpointTaskResponse);
+
+	rpc Update(UpdateTaskRequest) returns (google.protobuf.Empty);
+
+	rpc Metrics(MetricsRequest) returns (MetricsResponse);
+
+	rpc Wait(WaitRequest) returns (WaitResponse);
+}
+
+message CreateTaskRequest {
+	string container_id = 1;
+
+	// RootFS provides the pre-chroot mounts to perform in the shim before
+	// executing the container task.
+	//
+	// These are for mounts that cannot be performed in the user namespace.
+	// Typically, these mounts should be resolved from snapshots specified on
+	// the container object.
+	repeated containerd.types.Mount rootfs = 3;
+
+	string stdin = 4;
+	string stdout = 5;
+	string stderr = 6;
+	bool terminal = 7;
+
+	containerd.types.Descriptor checkpoint = 8;
+
+	google.protobuf.Any options = 9;
+}
+
+message CreateTaskResponse {
+	string container_id = 1;
+	uint32 pid = 2;
+}
+
+message StartRequest {
+	string container_id = 1;
+	string exec_id = 2;
+}
+
+message StartResponse {
+	uint32 pid = 1;
+}
+
+message DeleteTaskRequest {
+	string container_id = 1;
+}
+
+message DeleteResponse {
+	string id = 1;
+	uint32 pid = 2;
+	uint32 exit_status = 3;
+	google.protobuf.Timestamp exited_at = 4 [(gogoproto.stdtime) = true, (gogoproto.nullable) = false];
+}
+
+message DeleteProcessRequest {
+	string container_id = 1;
+	string exec_id = 2;
+}
+
+message GetRequest {
+	string container_id = 1;
+	string exec_id = 2;
+}
+
+message GetResponse {
+	containerd.v1.types.Process process = 1;
+}
+
+message ListTasksRequest {
+	string filter = 1;
+}
+
+message ListTasksResponse {
+	repeated containerd.v1.types.Process tasks = 1;
+}
+
+message KillRequest {
+	string container_id = 1;
+	string exec_id = 2;
+	uint32 signal = 3;
+	bool all = 4;
+}
+
+message ExecProcessRequest {
+	string container_id = 1;
+	string stdin = 2;
+	string stdout = 3;
+	string stderr = 4;
+	bool terminal = 5;
+	// Spec for starting a process in the target container.
+	//
+	// For runc, this is a process spec, for example.
+	google.protobuf.Any spec = 6;
+	// id of the exec process
+	string exec_id = 7;
+}
+
+message ExecProcessResponse {
+}
+
+message ResizePtyRequest {
+	string container_id = 1;
+	string exec_id = 2;
+	uint32 width = 3;
+	uint32 height = 4;
+}
+
+message CloseIORequest {
+	string container_id = 1;
+	string exec_id = 2;
+	bool stdin = 3;
+}
+
+message PauseTaskRequest {
+	string container_id = 1;
+}
+
+message ResumeTaskRequest {
+	string container_id = 1;
+}
+
+message ListPidsRequest {
+	string container_id = 1;
+}
+
+message ListPidsResponse {
+	// Processes includes the process ID and additional process information
+	repeated containerd.v1.types.ProcessInfo processes = 1;
+}
+
+message CheckpointTaskRequest {
+	string container_id = 1;
+	string parent_checkpoint = 2 [(gogoproto.customtype) = "github.com/opencontainers/go-digest.Digest", (gogoproto.nullable) = false];
+	google.protobuf.Any options = 3;
+}
+
+message CheckpointTaskResponse {
+	repeated containerd.types.Descriptor descriptors = 1;
+}
+
+message UpdateTaskRequest {
+	string container_id = 1;
+	google.protobuf.Any resources = 2;
+}
+
+message MetricsRequest {
+	repeated string filters = 1;
+}
+
+message MetricsResponse {
+	repeated types.Metric metrics = 1;
+}
+
+message WaitRequest {
+	string container_id = 1;
+	string exec_id = 2;
+}
+
+message WaitResponse {
+	uint32 exit_status = 1;
+	google.protobuf.Timestamp exited_at = 2 [(gogoproto.stdtime) = true, (gogoproto.nullable) = false];
+}

vendor/github.com/containerd/containerd/api/services/version/v1/version.pb.go

@@ -0,0 +1,446 @@
+// Code generated by protoc-gen-gogo. DO NOT EDIT.
+// source: github.com/containerd/containerd/api/services/version/v1/version.proto
+
+/*
+	Package version is a generated protocol buffer package.
+
+	It is generated from these files:
+		github.com/containerd/containerd/api/services/version/v1/version.proto
+
+	It has these top-level messages:
+		VersionResponse
+*/
+package version
+
+import proto "github.com/gogo/protobuf/proto"
+import fmt "fmt"
+import math "math"
+import google_protobuf "github.com/gogo/protobuf/types"
+
+// skipping weak import gogoproto "github.com/gogo/protobuf/gogoproto"
+
+import context "golang.org/x/net/context"
+import grpc "google.golang.org/grpc"
+
+import strings "strings"
+import reflect "reflect"
+
+import io "io"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.GoGoProtoPackageIsVersion2 // please upgrade the proto package
+
+type VersionResponse struct {
+	Version  string `protobuf:"bytes,1,opt,name=version,proto3" json:"version,omitempty"`
+	Revision string `protobuf:"bytes,2,opt,name=revision,proto3" json:"revision,omitempty"`
+}
+
+func (m *VersionResponse) Reset()                    { *m = VersionResponse{} }
+func (*VersionResponse) ProtoMessage()               {}
+func (*VersionResponse) Descriptor() ([]byte, []int) { return fileDescriptorVersion, []int{0} }
+
+func init() {
+	proto.RegisterType((*VersionResponse)(nil), "containerd.services.version.v1.VersionResponse")
+}
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ context.Context
+var _ grpc.ClientConn
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+const _ = grpc.SupportPackageIsVersion4
+
+// Client API for Version service
+
+type VersionClient interface {
+	Version(ctx context.Context, in *google_protobuf.Empty, opts ...grpc.CallOption) (*VersionResponse, error)
+}
+
+type versionClient struct {
+	cc *grpc.ClientConn
+}
+
+func NewVersionClient(cc *grpc.ClientConn) VersionClient {
+	return &versionClient{cc}
+}
+
+func (c *versionClient) Version(ctx context.Context, in *google_protobuf.Empty, opts ...grpc.CallOption) (*VersionResponse, error) {
+	out := new(VersionResponse)
+	err := grpc.Invoke(ctx, "/containerd.services.version.v1.Version/Version", in, out, c.cc, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// Server API for Version service
+
+type VersionServer interface {
+	Version(context.Context, *google_protobuf.Empty) (*VersionResponse, error)
+}
+
+func RegisterVersionServer(s *grpc.Server, srv VersionServer) {
+	s.RegisterService(&_Version_serviceDesc, srv)
+}
+
+func _Version_Version_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(google_protobuf.Empty)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(VersionServer).Version(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/containerd.services.version.v1.Version/Version",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(VersionServer).Version(ctx, req.(*google_protobuf.Empty))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+var _Version_serviceDesc = grpc.ServiceDesc{
+	ServiceName: "containerd.services.version.v1.Version",
+	HandlerType: (*VersionServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "Version",
+			Handler:    _Version_Version_Handler,
+		},
+	},
+	Streams:  []grpc.StreamDesc{},
+	Metadata: "github.com/containerd/containerd/api/services/version/v1/version.proto",
+}
+
+func (m *VersionResponse) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalTo(dAtA)
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *VersionResponse) MarshalTo(dAtA []byte) (int, error) {
+	var i int
+	_ = i
+	var l int
+	_ = l
+	if len(m.Version) > 0 {
+		dAtA[i] = 0xa
+		i++
+		i = encodeVarintVersion(dAtA, i, uint64(len(m.Version)))
+		i += copy(dAtA[i:], m.Version)
+	}
+	if len(m.Revision) > 0 {
+		dAtA[i] = 0x12
+		i++
+		i = encodeVarintVersion(dAtA, i, uint64(len(m.Revision)))
+		i += copy(dAtA[i:], m.Revision)
+	}
+	return i, nil
+}
+
+func encodeVarintVersion(dAtA []byte, offset int, v uint64) int {
+	for v >= 1<<7 {
+		dAtA[offset] = uint8(v&0x7f | 0x80)
+		v >>= 7
+		offset++
+	}
+	dAtA[offset] = uint8(v)
+	return offset + 1
+}
+func (m *VersionResponse) Size() (n int) {
+	var l int
+	_ = l
+	l = len(m.Version)
+	if l > 0 {
+		n += 1 + l + sovVersion(uint64(l))
+	}
+	l = len(m.Revision)
+	if l > 0 {
+		n += 1 + l + sovVersion(uint64(l))
+	}
+	return n
+}
+
+func sovVersion(x uint64) (n int) {
+	for {
+		n++
+		x >>= 7
+		if x == 0 {
+			break
+		}
+	}
+	return n
+}
+func sozVersion(x uint64) (n int) {
+	return sovVersion(uint64((x << 1) ^ uint64((int64(x) >> 63))))
+}
+func (this *VersionResponse) String() string {
+	if this == nil {
+		return "nil"
+	}
+	s := strings.Join([]string{`&VersionResponse{`,
+		`Version:` + fmt.Sprintf("%v", this.Version) + `,`,
+		`Revision:` + fmt.Sprintf("%v", this.Revision) + `,`,
+		`}`,
+	}, "")
+	return s
+}
+func valueToStringVersion(v interface{}) string {
+	rv := reflect.ValueOf(v)
+	if rv.IsNil() {
+		return "nil"
+	}
+	pv := reflect.Indirect(rv).Interface()
+	return fmt.Sprintf("*%v", pv)
+}
+func (m *VersionResponse) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowVersion
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= (uint64(b) & 0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: VersionResponse: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: VersionResponse: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Version", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowVersion
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= (uint64(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthVersion
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Version = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
+		case 2:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Revision", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowVersion
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= (uint64(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthVersion
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Revision = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
+		default:
+			iNdEx = preIndex
+			skippy, err := skipVersion(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if skippy < 0 {
+				return ErrInvalidLengthVersion
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
+func skipVersion(dAtA []byte) (n int, err error) {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return 0, ErrIntOverflowVersion
+			}
+			if iNdEx >= l {
+				return 0, io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= (uint64(b) & 0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		wireType := int(wire & 0x7)
+		switch wireType {
+		case 0:
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return 0, ErrIntOverflowVersion
+				}
+				if iNdEx >= l {
+					return 0, io.ErrUnexpectedEOF
+				}
+				iNdEx++
+				if dAtA[iNdEx-1] < 0x80 {
+					break
+				}
+			}
+			return iNdEx, nil
+		case 1:
+			iNdEx += 8
+			return iNdEx, nil
+		case 2:
+			var length int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return 0, ErrIntOverflowVersion
+				}
+				if iNdEx >= l {
+					return 0, io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				length |= (int(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			iNdEx += length
+			if length < 0 {
+				return 0, ErrInvalidLengthVersion
+			}
+			return iNdEx, nil
+		case 3:
+			for {
+				var innerWire uint64
+				var start int = iNdEx
+				for shift := uint(0); ; shift += 7 {
+					if shift >= 64 {
+						return 0, ErrIntOverflowVersion
+					}
+					if iNdEx >= l {
+						return 0, io.ErrUnexpectedEOF
+					}
+					b := dAtA[iNdEx]
+					iNdEx++
+					innerWire |= (uint64(b) & 0x7F) << shift
+					if b < 0x80 {
+						break
+					}
+				}
+				innerWireType := int(innerWire & 0x7)
+				if innerWireType == 4 {
+					break
+				}
+				next, err := skipVersion(dAtA[start:])
+				if err != nil {
+					return 0, err
+				}
+				iNdEx = start + next
+			}
+			return iNdEx, nil
+		case 4:
+			return iNdEx, nil
+		case 5:
+			iNdEx += 4
+			return iNdEx, nil
+		default:
+			return 0, fmt.Errorf("proto: illegal wireType %d", wireType)
+		}
+	}
+	panic("unreachable")
+}
+
+var (
+	ErrInvalidLengthVersion = fmt.Errorf("proto: negative length found during unmarshaling")
+	ErrIntOverflowVersion   = fmt.Errorf("proto: integer overflow")
+)
+
+func init() {
+	proto.RegisterFile("github.com/containerd/containerd/api/services/version/v1/version.proto", fileDescriptorVersion)
+}
+
+var fileDescriptorVersion = []byte{
+	// 243 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0x72, 0x4b, 0xcf, 0x2c, 0xc9,
+	0x28, 0x4d, 0xd2, 0x4b, 0xce, 0xcf, 0xd5, 0x4f, 0xce, 0xcf, 0x2b, 0x49, 0xcc, 0xcc, 0x4b, 0x2d,
+	0x4a, 0x41, 0x66, 0x26, 0x16, 0x64, 0xea, 0x17, 0xa7, 0x16, 0x95, 0x65, 0x26, 0xa7, 0x16, 0xeb,
+	0x97, 0xa5, 0x16, 0x15, 0x67, 0xe6, 0xe7, 0xe9, 0x97, 0x19, 0xc2, 0x98, 0x7a, 0x05, 0x45, 0xf9,
+	0x25, 0xf9, 0x42, 0x72, 0x08, 0x1d, 0x7a, 0x30, 0xd5, 0x7a, 0x30, 0x25, 0x65, 0x86, 0x52, 0xd2,
+	0xe9, 0xf9, 0xf9, 0xe9, 0x39, 0xa9, 0xfa, 0x60, 0xd5, 0x49, 0xa5, 0x69, 0xfa, 0xa9, 0xb9, 0x05,
+	0x25, 0x95, 0x10, 0xcd, 0x52, 0x22, 0xe9, 0xf9, 0xe9, 0xf9, 0x60, 0xa6, 0x3e, 0x88, 0x05, 0x11,
+	0x55, 0x72, 0xe7, 0xe2, 0x0f, 0x83, 0x18, 0x10, 0x94, 0x5a, 0x5c, 0x90, 0x9f, 0x57, 0x9c, 0x2a,
+	0x24, 0xc1, 0xc5, 0x0e, 0x35, 0x53, 0x82, 0x51, 0x81, 0x51, 0x83, 0x33, 0x08, 0xc6, 0x15, 0x92,
+	0xe2, 0xe2, 0x28, 0x4a, 0x2d, 0xcb, 0x04, 0x4b, 0x31, 0x81, 0xa5, 0xe0, 0x7c, 0xa3, 0x58, 0x2e,
+	0x76, 0xa8, 0x41, 0x42, 0x41, 0x08, 0xa6, 0x98, 0x1e, 0xc4, 0x49, 0x7a, 0x30, 0x27, 0xe9, 0xb9,
+	0x82, 0x9c, 0x24, 0xa5, 0xaf, 0x87, 0xdf, 0x2b, 0x7a, 0x68, 0x8e, 0x72, 0x8a, 0x3a, 0xf1, 0x50,
+	0x8e, 0xe1, 0xc6, 0x43, 0x39, 0x86, 0x86, 0x47, 0x72, 0x8c, 0x27, 0x1e, 0xc9, 0x31, 0x5e, 0x78,
+	0x24, 0xc7, 0xf8, 0xe0, 0x91, 0x1c, 0x63, 0x94, 0x03, 0xb9, 0x81, 0x6b, 0x0d, 0x65, 0x46, 0x30,
+	0x26, 0xb1, 0x81, 0x9d, 0x67, 0x0c, 0x08, 0x00, 0x00, 0xff, 0xff, 0x95, 0x0d, 0x52, 0x23, 0xa9,
+	0x01, 0x00, 0x00,
+}

vendor/github.com/containerd/containerd/api/services/version/v1/version.proto

@@ -0,0 +1,18 @@
+syntax = "proto3";
+
+package containerd.services.version.v1;
+
+import "google/protobuf/empty.proto";
+import weak "gogoproto/gogo.proto";
+
+// TODO(stevvooe): Should version service actually be versioned?
+option go_package = "github.com/containerd/containerd/api/services/version/v1;version";
+
+service Version {
+	rpc Version(google.protobuf.Empty) returns (VersionResponse);
+}
+
+message VersionResponse {
+	string version = 1;
+	string revision = 2;
+}