forked from LaconicNetwork/kompose
86 lines
3.0 KiB
Go
86 lines
3.0 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors All rights reserved
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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 docker
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import (
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"bytes"
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dockerlib "github.com/fsouza/go-dockerclient"
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"github.com/novln/docker-parser"
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"github.com/pkg/errors"
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log "github.com/sirupsen/logrus"
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)
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// Push will provide methods for interaction with API regarding pushing images
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type Push struct {
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Client dockerlib.Client
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}
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/*
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PushImage push a Docker image via the Docker API. Takes the image name,
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parses the URL details and then push based on environment authentication
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credentials.
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*/
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func (c *Push) PushImage(fullImageName string) error {
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outputBuffer := bytes.NewBuffer(nil)
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// Using https://github.com/novln/docker-parser in order to parse the appropriate
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// name and registry.
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parsedImage, err := dockerparser.Parse(fullImageName)
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if err != nil {
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return err
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}
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image, registry := parsedImage.Name(), parsedImage.Registry()
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log.Infof("Pushing image '%s' to registry '%s'", image, registry)
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// Let's setup the push and authentication options
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options := dockerlib.PushImageOptions{
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Name: fullImageName,
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Registry: parsedImage.Registry(),
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OutputStream: outputBuffer,
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}
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// Retrieve the authentication configuration file
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// Files checked as per https://godoc.org/github.com/fsouza/go-dockerclient#NewAuthConfigurationsFromFile
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// $DOCKER_CONFIG/config.json, $HOME/.docker/config.json , $HOME/.dockercfg
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credentials, err := dockerlib.NewAuthConfigurationsFromDockerCfg()
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if err != nil {
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return errors.Wrap(err, "Unable to retrieve .docker/config.json authentication details. Check that 'docker login' works successfully on the command line.")
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}
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// Push the image to the repository (based on the URL)
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// We will iterate through all available authentication configurations until we find one that pushes successfully
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// and then return nil.
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if len(credentials.Configs) > 1 {
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log.Info("Multiple authentication credentials detected. Will try each configuration.")
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}
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for k, v := range credentials.Configs {
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log.Infof("Attempting authentication credentials '%s", k)
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err = c.Client.PushImage(options, v)
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if err != nil {
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log.Errorf("Unable to push image '%s' to registry '%s'. Error: %s", image, registry, err)
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} else {
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log.Debugf("Image '%s' push output:\n%s", image, outputBuffer)
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log.Infof("Successfully pushed image '%s' to registry '%s'", image, registry)
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return nil
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}
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}
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return errors.New("unable to push docker image(s). Check that `docker login` works successfully on the command line")
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}
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