forked from LaconicNetwork/kompose
e2f9084003
This adds support for building and pushing docker containers when you perform either `kompose convert` or `kompose up`. Docker Compose files who have build parameters with their respective image and build keys will automatically be both built and pushed.
81 lines
2.4 KiB
Go
81 lines
2.4 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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log "github.com/Sirupsen/logrus"
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dockerlib "github.com/fsouza/go-dockerclient"
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"github.com/kubernetes-incubator/kompose/pkg/utils/archive"
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"github.com/pkg/errors"
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"io/ioutil"
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"os"
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"path"
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"strings"
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)
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type Build struct {
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Client dockerlib.Client
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}
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/*
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Build a Docker image via the Docker API. Takes the source directory
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and image name and then builds the appropriate image. Tarball is utilized
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in order to make building easier.
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*/
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func (c *Build) BuildImage(source string, image string) error {
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log.Infof("Building image '%s' from directory '%s'", image, path.Base(source))
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// Create a temporary file for tarball image packaging
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tmpFile, err := ioutil.TempFile("/tmp", "kompose-image-build-")
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if err != nil {
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return err
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}
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log.Debugf("Created temporary file %v for Docker image tarballing", tmpFile.Name())
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// Create a tarball of the source directory in order to build the resulting image
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err = archive.CreateTarball(strings.Join([]string{source, ""}, "/"), tmpFile.Name())
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if err != nil {
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return errors.Wrap(err, "Unable to create a tarball")
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}
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// Load the file into memory
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tarballSource, err := os.Open(tmpFile.Name())
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if err != nil {
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return errors.Wrap(err, "Unable to load tarball into memory")
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}
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// Let's create all the options for the image building.
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outputBuffer := bytes.NewBuffer(nil)
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opts := dockerlib.BuildImageOptions{
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Name: image,
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InputStream: tarballSource,
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OutputStream: outputBuffer,
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}
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// Build it!
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if err := c.Client.BuildImage(opts); err != nil {
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return errors.Wrap(err, "Unable to build image. For more output, use -v or --verbose when converting.")
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}
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log.Infof("Image '%s' from directory '%s' built successfully", image, path.Base(source))
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log.Debugf("Image %s build output:\n%s", image, outputBuffer)
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return nil
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}
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