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package auth
// Copyright (c) Microsoft and contributors. 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.
import (
"os"
"strings"
"github.com/Azure/go-autorest/autorest"
"github.com/Azure/go-autorest/autorest/azure"
"github.com/Azure/go-autorest/autorest/azure/auth"
)
// NewAuthorizerFromEnvironment creates a keyvault dataplane Authorizer configured from environment variables in the order:
// 1. Client credentials
// 2. Client certificate
// 3. Username password
// 4. MSI
func NewAuthorizerFromEnvironment() (autorest.Authorizer, error) {
res, err := getResource()
if err != nil {
return nil, err
}
return auth.NewAuthorizerFromEnvironmentWithResource(*res)
}
// NewAuthorizerFromFile creates a keyvault dataplane Authorizer configured from a configuration file
func NewAuthorizerFromFile(baseURI string) (autorest.Authorizer, error) {
res, err := getResource()
if err != nil {
return nil, err
}
return auth.NewAuthorizerFromFileWithResource(*res)
}
// NewAuthorizerFromCLI creates a keyvault dataplane Authorizer configured from Azure CLI 2.0 for local development scenarios.
func NewAuthorizerFromCLI() (autorest.Authorizer, error) {
res, err := getResource()
if err != nil {
return nil, err
}
return auth.NewAuthorizerFromCLIWithResource(*res)
}
func getResource() (*string, error) {
envName := os.Getenv("AZURE_ENVIRONMENT")
var env azure.Environment
var err error
if envName == "" {
env = azure.PublicCloud
} else {
env, err = azure.EnvironmentFromName(envName)
if err != nil {
return nil, err
}
}
resource := os.Getenv("AZURE_KEYVAULT_RESOURCE")
if resource == "" {
resource = strings.TrimSuffix(env.KeyVaultEndpoint, "/")
}
return &resource, nil
}
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