Ankit ChawlaandGitHub
b27043518f
Treat \"resource not found\" as a successful delete if ignorenotfound flag passed while deletion of Fission resource.
133 lines
3.5 KiB
Go
133 lines
3.5 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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"github.com/fission/fission/pkg/fission-cli/cmd"
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flagkey "github.com/fission/fission/pkg/fission-cli/flag/key"
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"github.com/fission/fission/pkg/fission-cli/util"
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)
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type DeleteSubCommand struct {
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cmd.CommandActioner
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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(input cli.Input) error {
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return (&DeleteSubCommand{}).do(input)
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}
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func (opts *DeleteSubCommand) do(input cli.Input) error {
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err := opts.complete(input)
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if err != nil {
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return err
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}
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return opts.run(input)
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}
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func (opts *DeleteSubCommand) complete(input cli.Input) error {
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opts.name = input.String(flagkey.PkgName)
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opts.namespace = input.String(flagkey.NamespacePackage)
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opts.deleteOrphans = input.Bool(flagkey.PkgOrphan)
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opts.force = input.Bool(flagkey.PkgForce)
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if len(opts.name) == 0 && !opts.deleteOrphans {
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return errors.Errorf("need --%v or --%v flag", flagkey.PkgName, flagkey.PkgOrphan)
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}
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return nil
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}
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func (opts *DeleteSubCommand) run(input cli.Input) error {
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if len(opts.name) != 0 {
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_, err := opts.Client().V1().Package().Get(&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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if input.Bool(flagkey.IgnoreNotFound) && util.IsNotFound(err) {
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return nil
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}
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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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}
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// TODO improve list speed when --orphan
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if opts.deleteOrphans {
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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.Interface, pkgNamespace string) error {
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pkgList, err := client.V1().Package().List(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.ObjectMeta.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.ObjectMeta.Name))
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}
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if len(fnList) == 0 {
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err = deletePackage(client, pkg.ObjectMeta.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.Interface, pkgName string, pkgNamespace string) error {
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return client.V1().Package().Delete(&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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