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extensions.go
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extensions.go
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// +build go1.7
package vmutils
// Copyright 2017 Microsoft Corporation
//
// 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.
import (
"encoding/base64"
"encoding/json"
"fmt"
vm "github.com/Azure/azure-sdk-for-go/services/classic/management/virtualmachine"
)
const (
dockerPublicConfigVersion = 2
)
func AddAzureVMExtensionConfiguration(role *vm.Role, name, publisher, version, referenceName, state string,
publicConfigurationValue, privateConfigurationValue []byte) error {
if role == nil {
return fmt.Errorf(errParamNotSpecified, "role")
}
extension := vm.ResourceExtensionReference{
Name: name,
Publisher: publisher,
Version: version,
ReferenceName: referenceName,
State: state,
}
if len(privateConfigurationValue) != 0 {
extension.ParameterValues = append(extension.ParameterValues, vm.ResourceExtensionParameter{
Key: "ignored",
Value: base64.StdEncoding.EncodeToString(privateConfigurationValue),
Type: "Private",
})
}
if len(publicConfigurationValue) != 0 {
extension.ParameterValues = append(extension.ParameterValues, vm.ResourceExtensionParameter{
Key: "ignored",
Value: base64.StdEncoding.EncodeToString(publicConfigurationValue),
Type: "Public",
})
}
if role.ResourceExtensionReferences == nil {
role.ResourceExtensionReferences = &[]vm.ResourceExtensionReference{}
}
extensionList := append(*role.ResourceExtensionReferences, extension)
role.ResourceExtensionReferences = &extensionList
return nil
}
// AddAzureDockerVMExtensionConfiguration adds the DockerExtension to the role
// configuratioon and opens a port "dockerPort"
// TODO(ahmetalpbalkan) Deprecate this and move to 'docker-machine' codebase.
func AddAzureDockerVMExtensionConfiguration(role *vm.Role, dockerPort int, version string) error {
if role == nil {
return fmt.Errorf(errParamNotSpecified, "role")
}
if err := ConfigureWithExternalPort(role, "docker", dockerPort, dockerPort, vm.InputEndpointProtocolTCP); err != nil {
return err
}
publicConfiguration, err := createDockerPublicConfig(dockerPort)
if err != nil {
return err
}
privateConfiguration, err := json.Marshal(dockerPrivateConfig{})
if err != nil {
return err
}
return AddAzureVMExtensionConfiguration(role,
"DockerExtension", "MSOpenTech.Extensions",
version, "DockerExtension", "enable",
publicConfiguration, privateConfiguration)
}
func createDockerPublicConfig(dockerPort int) ([]byte, error) {
return json.Marshal(dockerPublicConfig{DockerPort: dockerPort, Version: dockerPublicConfigVersion})
}
type dockerPublicConfig struct {
DockerPort int `json:"dockerport"`
Version int `json:"version"`
}
type dockerPrivateConfig struct{}