terraform/builtin/providers/aws/provider.go

278 lines
10 KiB
Go

package aws
import (
"net"
"sync"
"time"
"github.com/awslabs/aws-sdk-go/aws/credentials"
"github.com/hashicorp/terraform/helper/hashcode"
"github.com/hashicorp/terraform/helper/schema"
"github.com/hashicorp/terraform/terraform"
)
// Provider returns a terraform.ResourceProvider.
func Provider() terraform.ResourceProvider {
// TODO: Move the validation to this, requires conditional schemas
// TODO: Move the configuration to this, requires validation
// These variables are closed within the `getCreds` function below.
// This function is responsible for reading credentials from the
// environment in the case that they're not explicitly specified
// in the Terraform configuration.
//
// By using the getCreds function here instead of making the default
// empty, we avoid asking for input on credentials if they're available
// in the environment.
var credVal credentials.Value
var credErr error
var once sync.Once
getCreds := func() {
// Build the list of providers to look for creds in
providers := []credentials.Provider{
&credentials.EnvProvider{},
&credentials.SharedCredentialsProvider{},
}
// We only look in the EC2 metadata API if we can connect
// to the metadata service within a reasonable amount of time
conn, err := net.DialTimeout("tcp", "169.254.169.254:80", 100*time.Millisecond)
if err == nil {
conn.Close()
providers = append(providers, &credentials.EC2RoleProvider{})
}
credVal, credErr = credentials.NewChainCredentials(providers).Get()
// If we didn't successfully find any credentials, just
// set the error to nil.
if credErr == credentials.ErrNoValidProvidersFoundInChain {
credErr = nil
}
}
// getCredDefault is a function used by DefaultFunc below to
// get the default value for various parts of the credentials.
// This function properly handles loading the credentials, checking
// for errors, etc.
getCredDefault := func(def interface{}, f func() string) (interface{}, error) {
once.Do(getCreds)
// If there was an error, that is always first
if credErr != nil {
return nil, credErr
}
// If the value is empty string, return nil (not set)
val := f()
if val == "" {
return def, nil
}
return val, nil
}
// The actual provider
return &schema.Provider{
Schema: map[string]*schema.Schema{
"access_key": &schema.Schema{
Type: schema.TypeString,
Required: true,
DefaultFunc: func() (interface{}, error) {
return getCredDefault(nil, func() string {
return credVal.AccessKeyID
})
},
Description: descriptions["access_key"],
},
"secret_key": &schema.Schema{
Type: schema.TypeString,
Required: true,
DefaultFunc: func() (interface{}, error) {
return getCredDefault(nil, func() string {
return credVal.SecretAccessKey
})
},
Description: descriptions["secret_key"],
},
"token": &schema.Schema{
Type: schema.TypeString,
Optional: true,
DefaultFunc: func() (interface{}, error) {
return getCredDefault("", func() string {
return credVal.SessionToken
})
},
Description: descriptions["token"],
},
"region": &schema.Schema{
Type: schema.TypeString,
Required: true,
DefaultFunc: schema.MultiEnvDefaultFunc([]string{
"AWS_REGION",
"AWS_DEFAULT_REGION",
}, nil),
Description: descriptions["region"],
InputDefault: "us-east-1",
},
"max_retries": &schema.Schema{
Type: schema.TypeInt,
Optional: true,
Default: 11,
Description: descriptions["max_retries"],
},
"allowed_account_ids": &schema.Schema{
Type: schema.TypeSet,
Elem: &schema.Schema{Type: schema.TypeString},
Optional: true,
ConflictsWith: []string{"forbidden_account_ids"},
Set: func(v interface{}) int {
return hashcode.String(v.(string))
},
},
"forbidden_account_ids": &schema.Schema{
Type: schema.TypeSet,
Elem: &schema.Schema{Type: schema.TypeString},
Optional: true,
ConflictsWith: []string{"allowed_account_ids"},
Set: func(v interface{}) int {
return hashcode.String(v.(string))
},
},
"dynamodb_endpoint": &schema.Schema{
Type: schema.TypeString,
Optional: true,
Default: "",
Description: descriptions["dynamodb_endpoint"],
},
},
ResourcesMap: map[string]*schema.Resource{
"aws_app_cookie_stickiness_policy": resourceAwsAppCookieStickinessPolicy(),
"aws_autoscaling_group": resourceAwsAutoscalingGroup(),
"aws_autoscaling_notification": resourceAwsAutoscalingNotification(),
"aws_autoscaling_policy": resourceAwsAutoscalingPolicy(),
"aws_cloudwatch_metric_alarm": resourceAwsCloudWatchMetricAlarm(),
"aws_customer_gateway": resourceAwsCustomerGateway(),
"aws_db_instance": resourceAwsDbInstance(),
"aws_db_parameter_group": resourceAwsDbParameterGroup(),
"aws_db_security_group": resourceAwsDbSecurityGroup(),
"aws_db_subnet_group": resourceAwsDbSubnetGroup(),
"aws_dynamodb_table": resourceAwsDynamoDbTable(),
"aws_ebs_volume": resourceAwsEbsVolume(),
"aws_ecs_cluster": resourceAwsEcsCluster(),
"aws_ecs_service": resourceAwsEcsService(),
"aws_ecs_task_definition": resourceAwsEcsTaskDefinition(),
"aws_eip": resourceAwsEip(),
"aws_elasticache_cluster": resourceAwsElasticacheCluster(),
"aws_elasticache_parameter_group": resourceAwsElasticacheParameterGroup(),
"aws_elasticache_security_group": resourceAwsElasticacheSecurityGroup(),
"aws_elasticache_subnet_group": resourceAwsElasticacheSubnetGroup(),
"aws_elb": resourceAwsElb(),
"aws_flow_log": resourceAwsFlowLog(),
"aws_iam_access_key": resourceAwsIamAccessKey(),
"aws_iam_group_policy": resourceAwsIamGroupPolicy(),
"aws_iam_group": resourceAwsIamGroup(),
"aws_iam_group_membership": resourceAwsIamGroupMembership(),
"aws_iam_instance_profile": resourceAwsIamInstanceProfile(),
"aws_iam_policy": resourceAwsIamPolicy(),
"aws_iam_policy_attachment": resourceAwsIamPolicyAttachment(),
"aws_iam_role_policy": resourceAwsIamRolePolicy(),
"aws_iam_role": resourceAwsIamRole(),
"aws_iam_server_certificate": resourceAwsIAMServerCertificate(),
"aws_iam_user_policy": resourceAwsIamUserPolicy(),
"aws_iam_user": resourceAwsIamUser(),
"aws_instance": resourceAwsInstance(),
"aws_internet_gateway": resourceAwsInternetGateway(),
"aws_key_pair": resourceAwsKeyPair(),
"aws_kinesis_stream": resourceAwsKinesisStream(),
"aws_lambda_function": resourceAwsLambdaFunction(),
"aws_launch_configuration": resourceAwsLaunchConfiguration(),
"aws_lb_cookie_stickiness_policy": resourceAwsLBCookieStickinessPolicy(),
"aws_main_route_table_association": resourceAwsMainRouteTableAssociation(),
"aws_network_acl": resourceAwsNetworkAcl(),
"aws_network_interface": resourceAwsNetworkInterface(),
"aws_proxy_protocol_policy": resourceAwsProxyProtocolPolicy(),
"aws_route53_delegation_set": resourceAwsRoute53DelegationSet(),
"aws_route53_record": resourceAwsRoute53Record(),
"aws_route53_zone_association": resourceAwsRoute53ZoneAssociation(),
"aws_route53_zone": resourceAwsRoute53Zone(),
"aws_route53_health_check": resourceAwsRoute53HealthCheck(),
"aws_route_table": resourceAwsRouteTable(),
"aws_route_table_association": resourceAwsRouteTableAssociation(),
"aws_s3_bucket": resourceAwsS3Bucket(),
"aws_security_group": resourceAwsSecurityGroup(),
"aws_security_group_rule": resourceAwsSecurityGroupRule(),
"aws_spot_instance_request": resourceAwsSpotInstanceRequest(),
"aws_sqs_queue": resourceAwsSqsQueue(),
"aws_sns_topic": resourceAwsSnsTopic(),
"aws_sns_topic_subscription": resourceAwsSnsTopicSubscription(),
"aws_subnet": resourceAwsSubnet(),
"aws_volume_attachment": resourceAwsVolumeAttachment(),
"aws_vpc_dhcp_options_association": resourceAwsVpcDhcpOptionsAssociation(),
"aws_vpc_dhcp_options": resourceAwsVpcDhcpOptions(),
"aws_vpc_peering_connection": resourceAwsVpcPeeringConnection(),
"aws_vpc": resourceAwsVpc(),
"aws_vpc_endpoint": resourceAwsVpcEndpoint(),
"aws_vpn_connection": resourceAwsVpnConnection(),
"aws_vpn_connection_route": resourceAwsVpnConnectionRoute(),
"aws_vpn_gateway": resourceAwsVpnGateway(),
},
ConfigureFunc: providerConfigure,
}
}
var descriptions map[string]string
func init() {
descriptions = map[string]string{
"region": "The region where AWS operations will take place. Examples\n" +
"are us-east-1, us-west-2, etc.",
"access_key": "The access key for API operations. You can retrieve this\n" +
"from the 'Security & Credentials' section of the AWS console.",
"secret_key": "The secret key for API operations. You can retrieve this\n" +
"from the 'Security & Credentials' section of the AWS console.",
"token": "session token. A session token is only required if you are\n" +
"using temporary security credentials.",
"max_retries": "The maximum number of times an AWS API request is\n" +
"being executed. If the API request still fails, an error is\n" +
"thrown.",
"dynamodb_endpoint": "Use this to override the default endpoint URL constructed from the `region`.\n" +
"It's typically used to connect to dynamodb-local.",
}
}
func providerConfigure(d *schema.ResourceData) (interface{}, error) {
config := Config{
AccessKey: d.Get("access_key").(string),
SecretKey: d.Get("secret_key").(string),
Token: d.Get("token").(string),
Region: d.Get("region").(string),
MaxRetries: d.Get("max_retries").(int),
DynamoDBEndpoint: d.Get("dynamodb_endpoint").(string),
}
if v, ok := d.GetOk("allowed_account_ids"); ok {
config.AllowedAccountIds = v.(*schema.Set).List()
}
if v, ok := d.GetOk("forbidden_account_ids"); ok {
config.ForbiddenAccountIds = v.(*schema.Set).List()
}
return config.Client()
}