github.com/zoumo/helm@v2.5.0+incompatible/cmd/helm/installer/uninstall.go (about)

     1  /*
     2  Copyright 2016 The Kubernetes Authors All rights reserved.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package installer // import "k8s.io/helm/cmd/helm/installer"
    18  
    19  import (
    20  	apierrors "k8s.io/apimachinery/pkg/api/errors"
    21  	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
    22  	"k8s.io/client-go/pkg/apis/extensions"
    23  	"k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
    24  	coreclient "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/core/internalversion"
    25  	"k8s.io/kubernetes/pkg/kubectl"
    26  )
    27  
    28  const (
    29  	deploymentName = "tiller-deploy"
    30  	serviceName    = "tiller-deploy"
    31  )
    32  
    33  // Uninstall uses kubernetes client to uninstall tiller
    34  func Uninstall(client internalclientset.Interface, opts *Options) error {
    35  	if err := deleteService(client.Core(), opts.Namespace); err != nil {
    36  		return err
    37  	}
    38  	return deleteDeployment(client, opts.Namespace)
    39  }
    40  
    41  // deleteService deletes the Tiller Service resource
    42  func deleteService(client coreclient.ServicesGetter, namespace string) error {
    43  	err := client.Services(namespace).Delete(serviceName, &metav1.DeleteOptions{})
    44  	return ingoreNotFound(err)
    45  }
    46  
    47  // deleteDeployment deletes the Tiller Deployment resource
    48  // We need to use the reaper instead of the kube API because GC for deployment dependents
    49  // is not yet supported at the k8s server level (<= 1.5)
    50  func deleteDeployment(client internalclientset.Interface, namespace string) error {
    51  	reaper, _ := kubectl.ReaperFor(extensions.Kind("Deployment"), client)
    52  	err := reaper.Stop(namespace, deploymentName, 0, nil)
    53  	return ingoreNotFound(err)
    54  }
    55  
    56  func ingoreNotFound(err error) error {
    57  	if apierrors.IsNotFound(err) {
    58  		return nil
    59  	}
    60  	return err
    61  }