94 lines
2.7 KiB
Go
94 lines
2.7 KiB
Go
/*
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Copyright 2020 The Kruise 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 cloneset
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import (
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"context"
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"fmt"
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appsv1alpha1 "github.com/openkruise/kruise-api/apps/v1alpha1"
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"github.com/openkruise/kruise-tools/pkg/api"
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"github.com/openkruise/kruise-tools/pkg/conversion"
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"github.com/openkruise/kruise-tools/pkg/creation"
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apps "k8s.io/api/apps/v1"
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"k8s.io/apimachinery/pkg/api/errors"
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"k8s.io/client-go/rest"
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"sigs.k8s.io/controller-runtime/pkg/client"
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"sigs.k8s.io/controller-runtime/pkg/client/apiutil"
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)
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type control struct {
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client client.Client
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}
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func NewControl(cfg *rest.Config) (creation.Control, error) {
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scheme := api.GetScheme()
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c, err := rest.HTTPClientFor(cfg)
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if err != nil {
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return nil, err
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}
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mapper, err := apiutil.NewDynamicRESTMapper(cfg, c)
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if err != nil {
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return nil, err
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}
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ctrl := &control{}
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if ctrl.client, err = client.New(cfg, client.Options{Scheme: scheme, Mapper: mapper}); err != nil {
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return nil, err
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}
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return ctrl, nil
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}
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func (c *control) Create(src api.ResourceRef, dst api.ResourceRef, opts creation.Options) error {
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if src.GetGroupVersionKind() != api.DeploymentKind {
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return fmt.Errorf("invalid src type, currently only support %v", api.DeploymentKind.String())
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} else if dst.GetGroupVersionKind() != api.CloneSetKind {
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return fmt.Errorf("invalid dst type, must be %v", api.CloneSetKind.String())
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}
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if err := c.ensureCloneSetNotExists(dst); err != nil {
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return err
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}
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srcDeployment, err := c.getDeployment(src)
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if err != nil {
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return err
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}
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dstCloneSet := conversion.DeploymentToCloneSet(srcDeployment, dst.Name)
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return c.client.Create(context.TODO(), dstCloneSet)
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}
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func (c *control) getDeployment(ref api.ResourceRef) (*apps.Deployment, error) {
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d := &apps.Deployment{}
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if err := c.client.Get(context.TODO(), ref.GetNamespacedName(), d); err != nil {
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return nil, fmt.Errorf("failed to get %v: %v", ref, err)
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}
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return d, nil
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}
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func (c *control) ensureCloneSetNotExists(ref api.ResourceRef) error {
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cs := &appsv1alpha1.CloneSet{}
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if err := c.client.Get(context.TODO(), ref.GetNamespacedName(), cs); err == nil {
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return fmt.Errorf("cloneset %v already exists", ref.GetNamespacedName())
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} else if !errors.IsNotFound(err) {
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return fmt.Errorf("failed to get %v: %v", ref, err)
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}
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return nil
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}
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