| /* |
| 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 containerd |
| |
| import ( |
| "context" |
| "errors" |
| "io" |
| |
| containersapi "github.com/containerd/containerd/api/services/containers/v1" |
| "github.com/containerd/containerd/containers" |
| "github.com/containerd/containerd/errdefs" |
| ptypes "github.com/gogo/protobuf/types" |
| "google.golang.org/grpc/codes" |
| "google.golang.org/grpc/status" |
| ) |
| |
| type remoteContainers struct { |
| client containersapi.ContainersClient |
| } |
| |
| var _ containers.Store = &remoteContainers{} |
| |
| // NewRemoteContainerStore returns the container Store connected with the provided client |
| func NewRemoteContainerStore(client containersapi.ContainersClient) containers.Store { |
| return &remoteContainers{ |
| client: client, |
| } |
| } |
| |
| func (r *remoteContainers) Get(ctx context.Context, id string) (containers.Container, error) { |
| resp, err := r.client.Get(ctx, &containersapi.GetContainerRequest{ |
| ID: id, |
| }) |
| if err != nil { |
| return containers.Container{}, errdefs.FromGRPC(err) |
| } |
| |
| return containerFromProto(&resp.Container), nil |
| } |
| |
| func (r *remoteContainers) List(ctx context.Context, filters ...string) ([]containers.Container, error) { |
| containers, err := r.stream(ctx, filters...) |
| if err != nil { |
| if err == errStreamNotAvailable { |
| return r.list(ctx, filters...) |
| } |
| return nil, err |
| } |
| return containers, nil |
| } |
| |
| func (r *remoteContainers) list(ctx context.Context, filters ...string) ([]containers.Container, error) { |
| resp, err := r.client.List(ctx, &containersapi.ListContainersRequest{ |
| Filters: filters, |
| }) |
| if err != nil { |
| return nil, errdefs.FromGRPC(err) |
| } |
| return containersFromProto(resp.Containers), nil |
| } |
| |
| var errStreamNotAvailable = errors.New("streaming api not available") |
| |
| func (r *remoteContainers) stream(ctx context.Context, filters ...string) ([]containers.Container, error) { |
| session, err := r.client.ListStream(ctx, &containersapi.ListContainersRequest{ |
| Filters: filters, |
| }) |
| if err != nil { |
| return nil, errdefs.FromGRPC(err) |
| } |
| var containers []containers.Container |
| for { |
| c, err := session.Recv() |
| if err != nil { |
| if err == io.EOF { |
| return containers, nil |
| } |
| if s, ok := status.FromError(err); ok { |
| if s.Code() == codes.Unimplemented { |
| return nil, errStreamNotAvailable |
| } |
| } |
| return nil, errdefs.FromGRPC(err) |
| } |
| select { |
| case <-ctx.Done(): |
| return containers, ctx.Err() |
| default: |
| containers = append(containers, containerFromProto(c.Container)) |
| } |
| } |
| } |
| |
| func (r *remoteContainers) Create(ctx context.Context, container containers.Container) (containers.Container, error) { |
| created, err := r.client.Create(ctx, &containersapi.CreateContainerRequest{ |
| Container: containerToProto(&container), |
| }) |
| if err != nil { |
| return containers.Container{}, errdefs.FromGRPC(err) |
| } |
| |
| return containerFromProto(&created.Container), nil |
| |
| } |
| |
| func (r *remoteContainers) Update(ctx context.Context, container containers.Container, fieldpaths ...string) (containers.Container, error) { |
| var updateMask *ptypes.FieldMask |
| if len(fieldpaths) > 0 { |
| updateMask = &ptypes.FieldMask{ |
| Paths: fieldpaths, |
| } |
| } |
| |
| updated, err := r.client.Update(ctx, &containersapi.UpdateContainerRequest{ |
| Container: containerToProto(&container), |
| UpdateMask: updateMask, |
| }) |
| if err != nil { |
| return containers.Container{}, errdefs.FromGRPC(err) |
| } |
| |
| return containerFromProto(&updated.Container), nil |
| |
| } |
| |
| func (r *remoteContainers) Delete(ctx context.Context, id string) error { |
| _, err := r.client.Delete(ctx, &containersapi.DeleteContainerRequest{ |
| ID: id, |
| }) |
| |
| return errdefs.FromGRPC(err) |
| |
| } |
| |
| func containerToProto(container *containers.Container) containersapi.Container { |
| return containersapi.Container{ |
| ID: container.ID, |
| Labels: container.Labels, |
| Image: container.Image, |
| Runtime: &containersapi.Container_Runtime{ |
| Name: container.Runtime.Name, |
| Options: container.Runtime.Options, |
| }, |
| Spec: container.Spec, |
| Snapshotter: container.Snapshotter, |
| SnapshotKey: container.SnapshotKey, |
| Extensions: container.Extensions, |
| } |
| } |
| |
| func containerFromProto(containerpb *containersapi.Container) containers.Container { |
| var runtime containers.RuntimeInfo |
| if containerpb.Runtime != nil { |
| runtime = containers.RuntimeInfo{ |
| Name: containerpb.Runtime.Name, |
| Options: containerpb.Runtime.Options, |
| } |
| } |
| return containers.Container{ |
| ID: containerpb.ID, |
| Labels: containerpb.Labels, |
| Image: containerpb.Image, |
| Runtime: runtime, |
| Spec: containerpb.Spec, |
| Snapshotter: containerpb.Snapshotter, |
| SnapshotKey: containerpb.SnapshotKey, |
| CreatedAt: containerpb.CreatedAt, |
| UpdatedAt: containerpb.UpdatedAt, |
| Extensions: containerpb.Extensions, |
| } |
| } |
| |
| func containersFromProto(containerspb []containersapi.Container) []containers.Container { |
| var containers []containers.Container |
| |
| for _, container := range containerspb { |
| containers = append(containers, containerFromProto(&container)) |
| } |
| |
| return containers |
| } |