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docker.go
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docker.go
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/*
* Copyright © 2018 mritd <mritd1234@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package gcrsync
import (
"context"
"encoding/base64"
"fmt"
"io"
"io/ioutil"
"github.com/json-iterator/go"
"github.com/Sirupsen/logrus"
"github.com/latelee/gcrsync/pkg/utils"
"github.com/docker/docker/api/types"
)
func (g *Gcr) Process(imageName string) {
logrus.Infof("Process image: %s", imageName)
ctx := context.Background()
oldImageName := fmt.Sprintf(GcrRegistryTpl, g.NameSpace, imageName)
newImageName := g.DockerUser + "/" + imageName
if !g.TestMode {
// pull image
r, err := g.dockerClient.ImagePull(ctx, oldImageName, types.ImagePullOptions{})
if !utils.CheckErr(err) {
logrus.Errorf("Failed to pull image: %s", oldImageName)
return
}
io.Copy(ioutil.Discard, r)
r.Close()
logrus.Infof("Pull image: %s success.", oldImageName)
// tag it
err = g.dockerClient.ImageTag(ctx, oldImageName, newImageName)
if !utils.CheckErr(err) {
logrus.Errorf("Failed to tag image [%s] ==> [%s]", oldImageName, newImageName)
return
}
logrus.Infof("Tag image: %s success.", oldImageName)
// push image
authConfig := types.AuthConfig{
Username: g.DockerUser,
Password: g.DockerPassword,
}
encodedJSON, err := jsoniter.Marshal(authConfig)
if !utils.CheckErr(err) {
logrus.Errorln("Failed to marshal docker config")
return
}
authStr := base64.URLEncoding.EncodeToString(encodedJSON)
r, err = g.dockerClient.ImagePush(ctx, newImageName, types.ImagePushOptions{RegistryAuth: authStr})
if !utils.CheckErr(err) {
logrus.Errorf("Failed to push image: %s", newImageName)
return
}
io.Copy(ioutil.Discard, r)
r.Close()
logrus.Infof("Push image: %s success.", newImageName)
// clean image
g.dockerClient.ImageRemove(ctx, oldImageName, types.ImageRemoveOptions{})
g.dockerClient.ImageRemove(ctx, newImageName, types.ImageRemoveOptions{})
logrus.Debugf("Remove image: %s success.", oldImageName)
}
logrus.Infoln("Append README.md")
CntIter++
logrus.Infof("processing [%d/%d]", CntIter, CntTotal)
g.update <- imageName
logrus.Debugln("Done.")
}