96 lines
2.7 KiB
Go
96 lines
2.7 KiB
Go
/*
|
|
Copyright 2018 Google LLC
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package cmd
|
|
|
|
import (
|
|
"github.com/GoogleCloudPlatform/k8s-container-builder/pkg/constants"
|
|
"github.com/GoogleCloudPlatform/k8s-container-builder/pkg/dockerfile"
|
|
"github.com/GoogleCloudPlatform/k8s-container-builder/pkg/image"
|
|
"github.com/GoogleCloudPlatform/k8s-container-builder/pkg/snapshot"
|
|
"github.com/GoogleCloudPlatform/k8s-container-builder/pkg/util"
|
|
"github.com/sirupsen/logrus"
|
|
"github.com/spf13/cobra"
|
|
"io/ioutil"
|
|
"os"
|
|
)
|
|
|
|
var (
|
|
dockerfilePath string
|
|
destination string
|
|
srcContext string
|
|
logLevel string
|
|
)
|
|
|
|
func init() {
|
|
RootCmd.PersistentFlags().StringVarP(&dockerfilePath, "dockerfile", "f", "/workspace/Dockerfile", "Path to the dockerfile to be built.")
|
|
RootCmd.PersistentFlags().StringVarP(&srcContext, "context", "c", "", "Path to the dockerfile build context.")
|
|
RootCmd.PersistentFlags().StringVarP(&destination, "destination", "d", "", "Registry the final image should be pushed to (ex: gcr.io/test/example:latest)")
|
|
RootCmd.PersistentFlags().StringVarP(&logLevel, "verbosity", "v", constants.DefaultLogLevel, "Log level (debug, info, warn, error, fatal, panic")
|
|
}
|
|
|
|
var RootCmd = &cobra.Command{
|
|
Use: "executor",
|
|
PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
|
|
return util.SetLogLevel(logLevel)
|
|
},
|
|
Run: func(cmd *cobra.Command, args []string) {
|
|
if err := execute(); err != nil {
|
|
logrus.Error(err)
|
|
os.Exit(1)
|
|
}
|
|
},
|
|
}
|
|
|
|
func execute() error {
|
|
// Parse dockerfile and unpack base image to root
|
|
d, err := ioutil.ReadFile(dockerfilePath)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
stages, err := dockerfile.Parse(d)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
baseImage := stages[0].BaseName
|
|
|
|
// Unpack file system to root
|
|
logrus.Infof("Unpacking filesystem of %s...", baseImage)
|
|
if err := util.ExtractFileSystemFromImage(baseImage); err != nil {
|
|
return err
|
|
}
|
|
|
|
l := snapshot.NewLayeredMap(util.Hasher())
|
|
snapshotter := snapshot.NewSnapshotter(l, constants.RootDir)
|
|
|
|
// Take initial snapshot
|
|
if err := snapshotter.Init(); err != nil {
|
|
return err
|
|
}
|
|
|
|
// Initialize source image
|
|
sourceImage, err := image.NewSourceImage(baseImage)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
// Execute commands here
|
|
|
|
// Push the image
|
|
return image.PushImage(sourceImage, destination)
|
|
}
|