95 lines
2.9 KiB
Go
95 lines
2.9 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 commands
|
|
|
|
import (
|
|
"os"
|
|
"path/filepath"
|
|
|
|
"github.com/GoogleContainerTools/kaniko/pkg/dockerfile"
|
|
"github.com/pkg/errors"
|
|
|
|
"github.com/GoogleContainerTools/kaniko/pkg/util"
|
|
v1 "github.com/google/go-containerregistry/pkg/v1"
|
|
"github.com/moby/buildkit/frontend/dockerfile/instructions"
|
|
"github.com/sirupsen/logrus"
|
|
)
|
|
|
|
type WorkdirCommand struct {
|
|
BaseCommand
|
|
cmd *instructions.WorkdirCommand
|
|
snapshotFiles []string
|
|
}
|
|
|
|
// For testing
|
|
var mkdirAllWithPermissions = util.MkdirAllWithPermissions
|
|
|
|
func (w *WorkdirCommand) ExecuteCommand(config *v1.Config, buildArgs *dockerfile.BuildArgs) error {
|
|
logrus.Info("Cmd: workdir")
|
|
workdirPath := w.cmd.Path
|
|
replacementEnvs := buildArgs.ReplacementEnvs(config.Env)
|
|
resolvedWorkingDir, err := util.ResolveEnvironmentReplacement(workdirPath, replacementEnvs, true)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if filepath.IsAbs(resolvedWorkingDir) {
|
|
config.WorkingDir = resolvedWorkingDir
|
|
} else {
|
|
if config.WorkingDir != "" {
|
|
config.WorkingDir = filepath.Join(config.WorkingDir, resolvedWorkingDir)
|
|
} else {
|
|
config.WorkingDir = filepath.Join("/", resolvedWorkingDir)
|
|
}
|
|
}
|
|
logrus.Infof("Changed working directory to %s", config.WorkingDir)
|
|
|
|
// Only create and snapshot the dir if it didn't exist already
|
|
w.snapshotFiles = []string{}
|
|
if _, err := os.Stat(config.WorkingDir); os.IsNotExist(err) {
|
|
uid, gid := int64(-1), int64(-1)
|
|
|
|
if config.User != "" {
|
|
logrus.Debugf("Fetching uid and gid for USER '%s'", config.User)
|
|
uid, gid, err = util.GetUserGroup(config.User, replacementEnvs)
|
|
if err != nil {
|
|
return errors.Wrapf(err, "identifying uid and gid for user %s", config.User)
|
|
}
|
|
}
|
|
|
|
logrus.Infof("Creating directory %s with uid %d and gid %d", config.WorkingDir, uid, gid)
|
|
w.snapshotFiles = append(w.snapshotFiles, config.WorkingDir)
|
|
if err := mkdirAllWithPermissions(config.WorkingDir, 0755, uid, gid); err != nil {
|
|
return errors.Wrapf(err, "creating workdir %s", config.WorkingDir)
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// FilesToSnapshot returns the workingdir, which should have been created if it didn't already exist
|
|
func (w *WorkdirCommand) FilesToSnapshot() []string {
|
|
return w.snapshotFiles
|
|
}
|
|
|
|
// String returns some information about the command for the image config history
|
|
func (w *WorkdirCommand) String() string {
|
|
return w.cmd.String()
|
|
}
|
|
|
|
func (w *WorkdirCommand) MetadataOnly() bool {
|
|
return false
|
|
}
|