mirror of
https://github.com/GoogleContainerTools/kaniko
synced 2026-10-03 14:06:38 +02:00
Christian Jantz
65d7b0a9aa
* added switch to extract different sources as build context * first rough implementation of aws s3 * added buildcontext package and interface * added GetBuildContext func to buildcontext.go added fallback to gcs renamed GC struct to GCS * improved the default behavior of build context retrieval * renamed gc:// to gs:// in order to follow common standards * renamed struct File to Dir and some cleanup work * moved context.tar suffix to the buildcontext processors where it is needed * added buildcontext retrieval as struct variable added fallback if prefix in bucket specifier is present * cleanup if structures * added prefix to s3 * WIP * Fixed build context bugs * refactored build context
78 lines
2.4 KiB
Go
78 lines
2.4 KiB
Go
/*
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Copyright 2018 Google LLC
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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 buildcontext
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import (
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"os"
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"path/filepath"
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"cloud.google.com/go/storage"
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"github.com/GoogleContainerTools/kaniko/pkg/constants"
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"github.com/GoogleContainerTools/kaniko/pkg/util"
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"github.com/sirupsen/logrus"
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"golang.org/x/net/context"
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)
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// GCS struct for Google Cloud Storage processing
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type GCS struct {
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context string
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}
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func (g *GCS) UnpackTarFromBuildContext() (string, error) {
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bucket, item := util.GetBucketAndItem(g.context)
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return constants.BuildContextDir, unpackTarFromGCSBucket(bucket, item, constants.BuildContextDir)
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}
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// unpackTarFromGCSBucket unpacks the context.tar.gz file in the given bucket to the given directory
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func unpackTarFromGCSBucket(bucketName, item, directory string) error {
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// Get the tar from the bucket
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tarPath, err := getTarFromBucket(bucketName, item, directory)
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if err != nil {
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return err
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}
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logrus.Debug("Unpacking source context tar...")
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if err := util.UnpackCompressedTar(tarPath, directory); err != nil {
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return err
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}
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// Remove the tar so it doesn't interfere with subsequent commands
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logrus.Debugf("Deleting %s", tarPath)
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return os.Remove(tarPath)
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}
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// getTarFromBucket gets context.tar.gz from the GCS bucket and saves it to the filesystem
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// It returns the path to the tar file
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func getTarFromBucket(bucketName, item, directory string) (string, error) {
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ctx := context.Background()
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client, err := storage.NewClient(ctx)
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if err != nil {
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return "", err
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}
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bucket := client.Bucket(bucketName)
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// Get the tarfile context.tar.gz from the GCS bucket, and save it to a tar object
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reader, err := bucket.Object(item).NewReader(ctx)
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if err != nil {
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return "", err
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}
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defer reader.Close()
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tarPath := filepath.Join(directory, constants.ContextTar)
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if err := util.CreateFile(tarPath, reader, 0600, 0, 0); err != nil {
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return "", err
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}
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logrus.Debugf("Copied tarball %s from GCS bucket %s to %s", constants.ContextTar, bucketName, tarPath)
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return tarPath, nil
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}
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