secrets.go

/*
Copyright 2015 Google Inc. All rights reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package client

import (
	"errors"
	"fmt"

	"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
	"github.com/GoogleCloudPlatform/kubernetes/pkg/labels"
	"github.com/GoogleCloudPlatform/kubernetes/pkg/watch"
)

type SecretsNamespacer interface {
	Secrets(namespace string) SecretsInterface
}

type SecretsInterface interface {
	Create(secret *api.Secret) (*api.Secret, error)
	Update(secret *api.Secret) (*api.Secret, error)
	Delete(name string) error
	List(label, field labels.Selector) (*api.SecretList, error)
	Get(name string) (*api.Secret, error)
	Watch(label, field labels.Selector, resourceVersion string) (watch.Interface, error)
}

// events implements Secrets interface
type secrets struct {
	client    *Client
	namespace string
}

// newSecrets returns a new secrets object.
func newSecrets(c *Client, ns string) *secrets {
	return &secrets{
		client:    c,
		namespace: ns,
	}
}

func (s *secrets) Create(secret *api.Secret) (*api.Secret, error) {
	if s.namespace != "" && secret.Namespace != s.namespace {
		return nil, fmt.Errorf("can't create a secret with namespace '%v' in namespace '%v'", secret.Namespace, s.namespace)
	}

	result := &api.Secret{}
	err := s.client.Post().
		Namespace(secret.Namespace).
		Resource("secrets").
		Body(secret).
		Do().
		Into(result)

	return result, err
}

// List returns a list of secrets matching the selectors.
func (s *secrets) List(label, field labels.Selector) (*api.SecretList, error) {
	result := &api.SecretList{}

	err := s.client.Get().
		Namespace(s.namespace).
		Resource("secrets").
		SelectorParam(api.LabelSelectorQueryParam(s.client.APIVersion()), label).
		SelectorParam(api.FieldSelectorQueryParam(s.client.APIVersion()), field).
		Do().
		Into(result)

	return result, err
}

// Get returns the given secret, or an error.
func (s *secrets) Get(name string) (*api.Secret, error) {
	if len(name) == 0 {
		return nil, errors.New("name is required parameter to Get")
	}

	result := &api.Secret{}
	err := s.client.Get().
		Namespace(s.namespace).
		Resource("secrets").
		Name(name).
		Do().
		Into(result)

	return result, err
}

// Watch starts watching for secrets matching the given selectors.
func (s *secrets) Watch(label, field labels.Selector, resourceVersion string) (watch.Interface, error) {
	return s.client.Get().
		Prefix("watch").
		Namespace(s.namespace).
		Resource("secrets").
		Param("resourceVersion", resourceVersion).
		SelectorParam(api.LabelSelectorQueryParam(s.client.APIVersion()), label).
		SelectorParam(api.FieldSelectorQueryParam(s.client.APIVersion()), field).
		Watch()
}

func (s *secrets) Delete(name string) error {
	return s.client.Delete().
		Namespace(s.namespace).
		Resource("secrets").
		Name(name).
		Do().
		Error()
}

func (s *secrets) Update(secret *api.Secret) (result *api.Secret, err error) {
	result = &api.Secret{}
	if len(secret.ResourceVersion) == 0 {
		err = fmt.Errorf("invalid update object, missing resource version: %v", secret)
		return
	}

	err = s.client.Put().
		Namespace(s.namespace).
		Resource("secrets").
		Name(secret.Name).
		Body(secret).
		Do().
		Into(result)

	return
}