146 lines
4.3 KiB
Go
146 lines
4.3 KiB
Go
/*
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Copyright 2023 The Karmada 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 karmada
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import (
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"errors"
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"fmt"
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clientset "k8s.io/client-go/kubernetes"
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"k8s.io/client-go/rest"
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operatorv1alpha1 "github.com/karmada-io/karmada/operator/pkg/apis/operator/v1alpha1"
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"github.com/karmada-io/karmada/operator/pkg/constants"
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tasks "github.com/karmada-io/karmada/operator/pkg/tasks/deinit"
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"github.com/karmada-io/karmada/operator/pkg/util"
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"github.com/karmada-io/karmada/operator/pkg/workflow"
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)
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// DeInitOptions defines all the Deinit workflow options.
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type DeInitOptions struct {
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Name string
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Namespace string
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Kubeconfig *rest.Config
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HostCluster *operatorv1alpha1.HostCluster
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Karmada *operatorv1alpha1.Karmada
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}
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// DeInitOpt defines a type of function to set DeInitOptions values.
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type DeInitOpt func(o *DeInitOptions)
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var _ tasks.DeInitData = &deInitData{}
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// deInitData defines all the runtime information used when ruing deinit workflow;
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// this data is shared across all the tasks of workflow.
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type deInitData struct {
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name string
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namespace string
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remoteClient clientset.Interface
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}
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// NewDeInitDataJob initializes a deInit job with a list of sub tasks. and build
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// deinit runData object
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func NewDeInitDataJob(opt *DeInitOptions) *workflow.Job {
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deInitJob := workflow.NewJob()
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deInitJob.AppendTask(tasks.NewRemoveComponentTask(opt.Karmada))
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deInitJob.AppendTask(tasks.NewCleanupCertTask(opt.Karmada))
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deInitJob.AppendTask(tasks.NewCleanupKubeconfigTask())
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deInitJob.SetDataInitializer(func() (workflow.RunData, error) {
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localClusterClient, err := clientset.NewForConfig(opt.Kubeconfig)
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if err != nil {
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return nil, fmt.Errorf("error when creating local cluster client, err: %w", err)
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}
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// if there is no endpoint info, we are consider that the local cluster
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// is remote cluster to install karmada.
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var remoteClient clientset.Interface
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if util.IsInCluster(opt.HostCluster) {
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remoteClient = localClusterClient
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} else {
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remoteClient, err = util.BuildClientFromSecretRef(localClusterClient, opt.HostCluster.SecretRef)
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if err != nil {
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return nil, fmt.Errorf("error when creating cluster client to install karmada, err: %w", err)
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}
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}
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if len(opt.Name) == 0 || len(opt.Namespace) == 0 {
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return nil, errors.New("unexpected empty name or namespace")
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}
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return &deInitData{
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name: opt.Name,
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namespace: opt.Namespace,
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remoteClient: remoteClient,
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}, nil
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})
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return deInitJob
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}
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func (data *deInitData) GetName() string {
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return data.name
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}
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func (data *deInitData) GetNamespace() string {
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return data.namespace
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}
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func (data *deInitData) RemoteClient() clientset.Interface {
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return data.remoteClient
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}
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// NewJobDeInitOptions calls all of DeInitOpt func to initialize a DeInitOptions.
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// if there is not DeInitOpt functions, it will return a default DeInitOptions.
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func NewJobDeInitOptions(opts ...DeInitOpt) *DeInitOptions {
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options := defaultJobDeInitOptions()
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for _, c := range opts {
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c(options)
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}
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return options
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}
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func defaultJobDeInitOptions() *DeInitOptions {
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return &DeInitOptions{
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Name: "karmada",
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Namespace: constants.KarmadaSystemNamespace,
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HostCluster: &operatorv1alpha1.HostCluster{},
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}
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}
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// NewDeInitOptWithKarmada returns a DeInitOpt function to initialize DeInitOptions with karmada resource
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func NewDeInitOptWithKarmada(karmada *operatorv1alpha1.Karmada) DeInitOpt {
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return func(o *DeInitOptions) {
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o.Karmada = karmada
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o.Name = karmada.GetName()
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o.Namespace = karmada.GetNamespace()
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if karmada.Spec.HostCluster != nil {
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o.HostCluster = karmada.Spec.HostCluster
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}
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}
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}
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// NewDeInitOptWithKubeconfig returns a DeInitOpt function to set kubeconfig to DeInitOptions with rest config
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func NewDeInitOptWithKubeconfig(config *rest.Config) DeInitOpt {
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return func(o *DeInitOptions) {
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o.Kubeconfig = config
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}
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}
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