03d11bcf4e
Add a new docker integration with kubelet using the new runtime API. This change adds the package with some skeletons, and implements some of the basic operations.
86 lines
2.5 KiB
Go
86 lines
2.5 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package dockershim
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import (
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"fmt"
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dockertypes "github.com/docker/engine-api/types"
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runtimeApi "k8s.io/kubernetes/pkg/kubelet/api/v1alpha1/runtime"
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)
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// This file implements methods in ImageManagerService.
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// ListImages lists existing images.
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func (ds *dockerService) ListImages(filter *runtimeApi.ImageFilter) ([]*runtimeApi.Image, error) {
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opts := dockertypes.ImageListOptions{}
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if filter != nil {
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if imgSpec := filter.GetImage(); imgSpec != nil {
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opts.MatchName = imgSpec.GetImage()
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}
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}
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images, err := ds.client.ListImages(opts)
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if err != nil {
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return nil, err
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}
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result := []*runtimeApi.Image{}
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for _, i := range images {
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apiImage, err := toRuntimeAPIImage(&i)
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if err != nil {
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// TODO: log an error message?
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continue
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}
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result = append(result, apiImage)
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}
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return result, nil
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}
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// ImageStatus returns the status of the image.
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func (ds *dockerService) ImageStatus(image *runtimeApi.ImageSpec) (*runtimeApi.Image, error) {
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images, err := ds.ListImages(&runtimeApi.ImageFilter{Image: image})
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if err != nil {
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return nil, err
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}
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if len(images) != 1 {
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return nil, fmt.Errorf("ImageStatus returned more than one image: %+v", images)
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}
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return images[0], nil
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}
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// PullImage pulls a image with authentication config.
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func (ds *dockerService) PullImage(image *runtimeApi.ImageSpec, auth *runtimeApi.AuthConfig) error {
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// TODO: add default tags for images or should this be done by kubelet?
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return ds.client.PullImage(image.GetImage(),
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dockertypes.AuthConfig{
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Username: auth.GetUsername(),
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Password: auth.GetPassword(),
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ServerAddress: auth.GetServerAddress(),
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IdentityToken: auth.GetIdentityToken(),
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RegistryToken: auth.GetRegistryToken(),
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},
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dockertypes.ImagePullOptions{},
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)
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}
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// RemoveImage removes the image.
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func (ds *dockerService) RemoveImage(image *runtimeApi.ImageSpec) error {
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_, err := ds.client.RemoveImage(image.GetImage(), dockertypes.ImageRemoveOptions{PruneChildren: true})
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return err
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}
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