344 lines
11 KiB
Go
344 lines
11 KiB
Go
package aws
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import (
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"fmt"
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"log"
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"net/http"
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"strings"
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"github.com/hashicorp/go-cleanhttp"
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"github.com/hashicorp/go-multierror"
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"github.com/hashicorp/terraform/helper/logging"
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"github.com/hashicorp/terraform/terraform"
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"crypto/tls"
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"github.com/aws/aws-sdk-go/aws"
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"github.com/aws/aws-sdk-go/aws/awserr"
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"github.com/aws/aws-sdk-go/aws/request"
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"github.com/aws/aws-sdk-go/aws/session"
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"github.com/aws/aws-sdk-go/service/apigateway"
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"github.com/aws/aws-sdk-go/service/applicationautoscaling"
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"github.com/aws/aws-sdk-go/service/autoscaling"
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"github.com/aws/aws-sdk-go/service/cloudformation"
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"github.com/aws/aws-sdk-go/service/cloudfront"
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"github.com/aws/aws-sdk-go/service/cloudtrail"
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"github.com/aws/aws-sdk-go/service/cloudwatch"
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"github.com/aws/aws-sdk-go/service/cloudwatchevents"
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"github.com/aws/aws-sdk-go/service/cloudwatchlogs"
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"github.com/aws/aws-sdk-go/service/codecommit"
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"github.com/aws/aws-sdk-go/service/codedeploy"
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"github.com/aws/aws-sdk-go/service/directoryservice"
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"github.com/aws/aws-sdk-go/service/dynamodb"
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"github.com/aws/aws-sdk-go/service/ec2"
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"github.com/aws/aws-sdk-go/service/ecr"
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"github.com/aws/aws-sdk-go/service/ecs"
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"github.com/aws/aws-sdk-go/service/efs"
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"github.com/aws/aws-sdk-go/service/elasticache"
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"github.com/aws/aws-sdk-go/service/elasticbeanstalk"
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elasticsearch "github.com/aws/aws-sdk-go/service/elasticsearchservice"
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"github.com/aws/aws-sdk-go/service/elastictranscoder"
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"github.com/aws/aws-sdk-go/service/elb"
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"github.com/aws/aws-sdk-go/service/emr"
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"github.com/aws/aws-sdk-go/service/firehose"
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"github.com/aws/aws-sdk-go/service/glacier"
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"github.com/aws/aws-sdk-go/service/iam"
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"github.com/aws/aws-sdk-go/service/kinesis"
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"github.com/aws/aws-sdk-go/service/kms"
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"github.com/aws/aws-sdk-go/service/lambda"
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"github.com/aws/aws-sdk-go/service/opsworks"
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"github.com/aws/aws-sdk-go/service/rds"
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"github.com/aws/aws-sdk-go/service/redshift"
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"github.com/aws/aws-sdk-go/service/route53"
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"github.com/aws/aws-sdk-go/service/s3"
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"github.com/aws/aws-sdk-go/service/ses"
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"github.com/aws/aws-sdk-go/service/simpledb"
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"github.com/aws/aws-sdk-go/service/sns"
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"github.com/aws/aws-sdk-go/service/sqs"
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"github.com/aws/aws-sdk-go/service/sts"
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)
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type Config struct {
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AccessKey string
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SecretKey string
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CredsFilename string
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Profile string
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Token string
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Region string
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MaxRetries int
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AllowedAccountIds []interface{}
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ForbiddenAccountIds []interface{}
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DynamoDBEndpoint string
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KinesisEndpoint string
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Ec2Endpoint string
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IamEndpoint string
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ElbEndpoint string
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Insecure bool
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}
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type AWSClient struct {
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cfconn *cloudformation.CloudFormation
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cloudfrontconn *cloudfront.CloudFront
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cloudtrailconn *cloudtrail.CloudTrail
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cloudwatchconn *cloudwatch.CloudWatch
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cloudwatchlogsconn *cloudwatchlogs.CloudWatchLogs
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cloudwatcheventsconn *cloudwatchevents.CloudWatchEvents
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dsconn *directoryservice.DirectoryService
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dynamodbconn *dynamodb.DynamoDB
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ec2conn *ec2.EC2
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ecrconn *ecr.ECR
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ecsconn *ecs.ECS
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efsconn *efs.EFS
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elbconn *elb.ELB
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emrconn *emr.EMR
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esconn *elasticsearch.ElasticsearchService
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apigateway *apigateway.APIGateway
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appautoscalingconn *applicationautoscaling.ApplicationAutoScaling
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autoscalingconn *autoscaling.AutoScaling
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s3conn *s3.S3
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sesConn *ses.SES
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simpledbconn *simpledb.SimpleDB
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sqsconn *sqs.SQS
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snsconn *sns.SNS
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stsconn *sts.STS
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redshiftconn *redshift.Redshift
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r53conn *route53.Route53
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accountid string
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region string
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rdsconn *rds.RDS
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iamconn *iam.IAM
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kinesisconn *kinesis.Kinesis
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kmsconn *kms.KMS
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firehoseconn *firehose.Firehose
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elasticacheconn *elasticache.ElastiCache
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elasticbeanstalkconn *elasticbeanstalk.ElasticBeanstalk
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elastictranscoderconn *elastictranscoder.ElasticTranscoder
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lambdaconn *lambda.Lambda
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opsworksconn *opsworks.OpsWorks
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glacierconn *glacier.Glacier
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codedeployconn *codedeploy.CodeDeploy
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codecommitconn *codecommit.CodeCommit
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}
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// Client configures and returns a fully initialized AWSClient
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func (c *Config) Client() (interface{}, error) {
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// Get the auth and region. This can fail if keys/regions were not
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// specified and we're attempting to use the environment.
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var errs []error
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log.Println("[INFO] Building AWS region structure")
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err := c.ValidateRegion()
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if err != nil {
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errs = append(errs, err)
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}
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var client AWSClient
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if len(errs) == 0 {
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// store AWS region in client struct, for region specific operations such as
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// bucket storage in S3
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client.region = c.Region
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log.Println("[INFO] Building AWS auth structure")
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creds := GetCredentials(c.AccessKey, c.SecretKey, c.Token, c.Profile, c.CredsFilename)
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// Call Get to check for credential provider. If nothing found, we'll get an
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// error, and we can present it nicely to the user
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cp, err := creds.Get()
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if err != nil {
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if awsErr, ok := err.(awserr.Error); ok && awsErr.Code() == "NoCredentialProviders" {
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errs = append(errs, fmt.Errorf(`No valid credential sources found for AWS Provider.
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Please see https://terraform.io/docs/providers/aws/index.html for more information on
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providing credentials for the AWS Provider`))
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} else {
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errs = append(errs, fmt.Errorf("Error loading credentials for AWS Provider: %s", err))
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}
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return nil, &multierror.Error{Errors: errs}
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}
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log.Printf("[INFO] AWS Auth provider used: %q", cp.ProviderName)
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awsConfig := &aws.Config{
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Credentials: creds,
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Region: aws.String(c.Region),
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MaxRetries: aws.Int(c.MaxRetries),
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HTTPClient: cleanhttp.DefaultClient(),
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}
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if logging.IsDebugOrHigher() {
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awsConfig.LogLevel = aws.LogLevel(aws.LogDebugWithHTTPBody)
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awsConfig.Logger = awsLogger{}
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}
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if c.Insecure {
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transport := awsConfig.HTTPClient.Transport.(*http.Transport)
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transport.TLSClientConfig = &tls.Config{
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InsecureSkipVerify: true,
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}
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}
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// Set up base session
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sess := session.New(awsConfig)
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sess.Handlers.Build.PushFrontNamed(addTerraformVersionToUserAgent)
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// Some services exist only in us-east-1, e.g. because they manage
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// resources that can span across multiple regions, or because
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// signature format v4 requires region to be us-east-1 for global
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// endpoints:
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// http://docs.aws.amazon.com/general/latest/gr/sigv4_changes.html
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usEast1Sess := sess.Copy(&aws.Config{Region: aws.String("us-east-1")})
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// Some services have user-configurable endpoints
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awsEc2Sess := sess.Copy(&aws.Config{Endpoint: aws.String(c.Ec2Endpoint)})
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awsElbSess := sess.Copy(&aws.Config{Endpoint: aws.String(c.ElbEndpoint)})
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awsIamSess := sess.Copy(&aws.Config{Endpoint: aws.String(c.IamEndpoint)})
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dynamoSess := sess.Copy(&aws.Config{Endpoint: aws.String(c.DynamoDBEndpoint)})
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kinesisSess := sess.Copy(&aws.Config{Endpoint: aws.String(c.KinesisEndpoint)})
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// These two services need to be set up early so we can check on AccountID
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client.iamconn = iam.New(awsIamSess)
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client.stsconn = sts.New(sess)
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err = c.ValidateCredentials(client.stsconn)
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if err != nil {
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errs = append(errs, err)
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return nil, &multierror.Error{Errors: errs}
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}
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accountId, err := GetAccountId(client.iamconn, client.stsconn, cp.ProviderName)
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if err == nil {
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client.accountid = accountId
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}
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authErr := c.ValidateAccountId(client.accountid)
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if authErr != nil {
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errs = append(errs, authErr)
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}
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client.apigateway = apigateway.New(sess)
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client.appautoscalingconn = applicationautoscaling.New(sess)
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client.autoscalingconn = autoscaling.New(sess)
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client.cfconn = cloudformation.New(sess)
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client.cloudfrontconn = cloudfront.New(sess)
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client.cloudtrailconn = cloudtrail.New(sess)
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client.cloudwatchconn = cloudwatch.New(sess)
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client.cloudwatcheventsconn = cloudwatchevents.New(sess)
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client.cloudwatchlogsconn = cloudwatchlogs.New(sess)
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client.codecommitconn = codecommit.New(usEast1Sess)
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client.codedeployconn = codedeploy.New(sess)
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client.dsconn = directoryservice.New(sess)
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client.dynamodbconn = dynamodb.New(dynamoSess)
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client.ec2conn = ec2.New(awsEc2Sess)
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client.ecrconn = ecr.New(sess)
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client.ecsconn = ecs.New(sess)
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client.efsconn = efs.New(sess)
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client.elasticacheconn = elasticache.New(sess)
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client.elasticbeanstalkconn = elasticbeanstalk.New(sess)
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client.elastictranscoderconn = elastictranscoder.New(sess)
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client.elbconn = elb.New(awsElbSess)
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client.emrconn = emr.New(sess)
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client.esconn = elasticsearch.New(sess)
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client.firehoseconn = firehose.New(sess)
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client.glacierconn = glacier.New(sess)
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client.kinesisconn = kinesis.New(kinesisSess)
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client.kmsconn = kms.New(sess)
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client.lambdaconn = lambda.New(sess)
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client.opsworksconn = opsworks.New(usEast1Sess)
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client.r53conn = route53.New(usEast1Sess)
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client.rdsconn = rds.New(sess)
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client.redshiftconn = redshift.New(sess)
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client.simpledbconn = simpledb.New(sess)
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client.s3conn = s3.New(sess)
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client.sesConn = ses.New(sess)
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client.snsconn = sns.New(sess)
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client.sqsconn = sqs.New(sess)
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}
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if len(errs) > 0 {
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return nil, &multierror.Error{Errors: errs}
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}
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return &client, nil
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}
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// ValidateRegion returns an error if the configured region is not a
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// valid aws region and nil otherwise.
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func (c *Config) ValidateRegion() error {
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var regions = [13]string{
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"ap-northeast-1",
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"ap-northeast-2",
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"ap-south-1",
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"ap-southeast-1",
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"ap-southeast-2",
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"cn-north-1",
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"eu-central-1",
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"eu-west-1",
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"sa-east-1",
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"us-east-1",
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"us-gov-west-1",
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"us-west-1",
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"us-west-2",
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}
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for _, valid := range regions {
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if c.Region == valid {
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return nil
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}
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}
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return fmt.Errorf("Not a valid region: %s", c.Region)
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}
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// Validate credentials early and fail before we do any graph walking.
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func (c *Config) ValidateCredentials(stsconn *sts.STS) error {
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_, err := stsconn.GetCallerIdentity(&sts.GetCallerIdentityInput{})
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return err
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}
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// ValidateAccountId returns a context-specific error if the configured account
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// id is explicitly forbidden or not authorised; and nil if it is authorised.
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func (c *Config) ValidateAccountId(accountId string) error {
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if c.AllowedAccountIds == nil && c.ForbiddenAccountIds == nil {
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return nil
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}
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log.Printf("[INFO] Validating account ID")
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if c.ForbiddenAccountIds != nil {
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for _, id := range c.ForbiddenAccountIds {
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if id == accountId {
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return fmt.Errorf("Forbidden account ID (%s)", id)
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}
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}
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}
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if c.AllowedAccountIds != nil {
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for _, id := range c.AllowedAccountIds {
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if id == accountId {
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return nil
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}
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}
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return fmt.Errorf("Account ID not allowed (%s)", accountId)
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}
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return nil
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}
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// addTerraformVersionToUserAgent is a named handler that will add Terraform's
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// version information to requests made by the AWS SDK.
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var addTerraformVersionToUserAgent = request.NamedHandler{
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Name: "terraform.TerraformVersionUserAgentHandler",
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Fn: request.MakeAddToUserAgentHandler(
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"terraform", terraform.VersionString()),
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}
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type awsLogger struct{}
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func (l awsLogger) Log(args ...interface{}) {
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tokens := make([]string, 0, len(args))
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for _, arg := range args {
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if token, ok := arg.(string); ok {
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tokens = append(tokens, token)
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}
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}
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log.Printf("[DEBUG] [aws-sdk-go] %s", strings.Join(tokens, " "))
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}
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