131 lines
3.3 KiB
Go
131 lines
3.3 KiB
Go
/*
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Copyright 2019 The Fission Authors.
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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 _package
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import (
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"fmt"
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"github.com/pkg/errors"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"github.com/fission/fission/pkg/controller/client"
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"github.com/fission/fission/pkg/fission-cli/cliwrapper/cli"
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cmdutils "github.com/fission/fission/pkg/fission-cli/cmd"
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)
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type DeleteSubCommand struct {
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client *client.Client
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name string
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namespace string
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deleteOrphans bool
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force bool
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}
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func Delete(flags cli.Input) error {
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opts := DeleteSubCommand{
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client: cmdutils.GetServer(flags),
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}
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return opts.do(flags)
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}
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func (opts *DeleteSubCommand) do(flags cli.Input) error {
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err := opts.complete(flags)
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if err != nil {
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return err
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}
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return opts.run(flags)
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}
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func (opts *DeleteSubCommand) complete(flags cli.Input) error {
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opts.name = flags.String("name")
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opts.namespace = flags.String("pkgNamespace")
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opts.deleteOrphans = flags.Bool("orphan")
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opts.force = flags.Bool("f")
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if len(opts.name) == 0 && !opts.deleteOrphans {
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return errors.New("need --name argument or --orphan flag")
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}
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if len(opts.name) != 0 && opts.deleteOrphans {
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return errors.New("need either --name argument or --orphan flag")
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}
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return nil
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}
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func (opts *DeleteSubCommand) run(flags cli.Input) error {
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if len(opts.name) != 0 {
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_, err := opts.client.PackageGet(&metav1.ObjectMeta{
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Namespace: opts.namespace,
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Name: opts.name,
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})
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if err != nil {
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return errors.Wrap(err, "find package")
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}
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fnList, err := GetFunctionsByPackage(opts.client, opts.name, opts.namespace)
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if err != nil {
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return err
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}
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if !opts.force && len(fnList) > 0 {
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return errors.New("Package is used by at least one function, use -f to force delete")
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}
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err = deletePackage(opts.client, opts.name, opts.namespace)
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if err != nil {
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return err
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}
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fmt.Printf("Package '%v' deleted\n", opts.name)
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} else {
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err := deleteOrphanPkgs(opts.client, opts.namespace)
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if err != nil {
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return errors.Wrap(err, "deleting orphan packages")
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}
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fmt.Println("Orphan packages deleted")
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}
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return nil
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}
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func deleteOrphanPkgs(client *client.Client, pkgNamespace string) error {
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pkgList, err := client.PackageList(pkgNamespace)
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if err != nil {
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return err
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}
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// range through all packages and find out the ones not referenced by any function
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for _, pkg := range pkgList {
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fnList, err := GetFunctionsByPackage(client, pkg.Metadata.Name, pkgNamespace)
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if err != nil {
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return errors.Wrap(err, fmt.Sprintf("get functions sharing package %s", pkg.Metadata.Name))
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}
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if len(fnList) == 0 {
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err = deletePackage(client, pkg.Metadata.Name, pkgNamespace)
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if err != nil {
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return err
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}
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}
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}
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return nil
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}
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func deletePackage(client *client.Client, pkgName string, pkgNamespace string) error {
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return client.PackageDelete(&metav1.ObjectMeta{
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Namespace: pkgNamespace,
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Name: pkgName,
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})
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}
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