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80 lines
2.5 KiB
80 lines
2.5 KiB
/*
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Copyright 2015 The Kubernetes Authors All rights reserved.
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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 registry
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import (
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"fmt"
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"io/ioutil"
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"log"
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"github.com/ghodss/yaml"
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"github.com/kubernetes/deployment-manager/common"
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)
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// FilebasedCredentialProvider provides credentials for registries.
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type FilebasedCredentialProvider struct {
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// Actual backing store
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backingCredentialProvider common.CredentialProvider
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}
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// NamedRegistryCredential associates a name with a RegistryCredential.
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type NamedRegistryCredential struct {
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Name string `json:"name,omitempty"`
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common.RegistryCredential
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}
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// NewFilebasedCredentialProvider creates a file based credential provider.
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func NewFilebasedCredentialProvider(filename string) (common.CredentialProvider, error) {
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icp := NewInmemCredentialProvider()
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c, err := readCredentialsFile(filename)
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if err != nil {
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return &FilebasedCredentialProvider{}, err
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}
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for _, nc := range c {
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log.Printf("Adding credential %s", nc.Name)
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icp.SetCredential(nc.Name, &nc.RegistryCredential)
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}
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return &FilebasedCredentialProvider{icp}, nil
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}
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func readCredentialsFile(filename string) ([]NamedRegistryCredential, error) {
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bytes, err := ioutil.ReadFile(filename)
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if err != nil {
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return []NamedRegistryCredential{}, err
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}
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return parseCredentials(bytes)
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}
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func parseCredentials(bytes []byte) ([]NamedRegistryCredential, error) {
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r := []NamedRegistryCredential{}
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if err := yaml.Unmarshal(bytes, &r); err != nil {
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return []NamedRegistryCredential{}, fmt.Errorf("cannot unmarshal credentials file (%#v)", err)
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}
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return r, nil
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}
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// GetCredential returns a credential by name.
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func (fcp *FilebasedCredentialProvider) GetCredential(name string) (*common.RegistryCredential, error) {
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return fcp.backingCredentialProvider.GetCredential(name)
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}
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// SetCredential sets a credential by name.
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func (fcp *FilebasedCredentialProvider) SetCredential(name string, credential *common.RegistryCredential) error {
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return fmt.Errorf("SetCredential operation not supported with FilebasedCredentialProvider")
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}
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