Add AWS lambda alias support and documentation
This commit is contained in:
Johannes Boyne
clint shryock
parent
aa05e8262a
commit
df7ac2d51b
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@ -150,6 +150,7 @@ func Provider() terraform.ResourceProvider {
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"aws_kinesis_stream": resourceAwsKinesisStream(),
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"aws_lambda_function": resourceAwsLambdaFunction(),
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"aws_lambda_event_source_mapping": resourceAwsLambdaEventSourceMapping(),
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"aws_lambda_alias": resourceAwsLambdaAlias(),
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"aws_launch_configuration": resourceAwsLaunchConfiguration(),
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"aws_lb_cookie_stickiness_policy": resourceAwsLBCookieStickinessPolicy(),
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"aws_main_route_table_association": resourceAwsMainRouteTableAssociation(),
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@ -0,0 +1,133 @@
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package aws
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import (
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"fmt"
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"log"
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"github.com/aws/aws-sdk-go/aws"
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"github.com/aws/aws-sdk-go/service/lambda"
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"github.com/hashicorp/terraform/helper/schema"
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)
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func resourceAwsLambdaAlias() *schema.Resource {
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return &schema.Resource{
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Create: resourceAwsLambdaAliasCreate,
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Read: resourceAwsLambdaAliasRead,
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Update: resourceAwsLambdaAliasUpdate,
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Delete: resourceAwsLambdaAliasDelete,
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Schema: map[string]*schema.Schema{
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"description": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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},
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"function_name": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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},
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"function_version": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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},
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"name": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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},
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},
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}
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}
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// resourceAwsLambdaAliasCreate maps to:
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// CreateAlias in the API / SDK
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func resourceAwsLambdaAliasCreate(d *schema.ResourceData, meta interface{}) error {
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conn := meta.(*AWSClient).lambdaconn
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functionName := d.Get("function_name").(string)
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aliasName := d.Get("name").(string)
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log.Printf("[DEBUG] Creating Lambda alias: alias %s for function %s", aliasName, functionName)
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params := &lambda.CreateAliasInput{
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Description: aws.String(d.Get("description").(string)),
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FunctionName: aws.String(functionName),
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FunctionVersion: aws.String(d.Get("function_version").(string)),
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Name: aws.String(aliasName),
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}
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aliasConfiguration, err := conn.CreateAlias(params)
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if err != nil {
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return fmt.Errorf("Error creating Lambda alias: %s", err)
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}
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d.SetId(*aliasConfiguration.AliasArn)
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return resourceAwsLambdaAliasRead(d, meta)
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}
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// resourceAwsLambdaAliasRead maps to:
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// GetAlias in the API / SDK
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func resourceAwsLambdaAliasRead(d *schema.ResourceData, meta interface{}) error {
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conn := meta.(*AWSClient).lambdaconn
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log.Printf("[DEBUG] Fetching Lambda alias: %s:%s", d.Get("function_name"), d.Get("name"))
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params := &lambda.GetAliasInput{
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FunctionName: aws.String(d.Get("function_name").(string)),
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Name: aws.String(d.Get("name").(string)),
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}
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aliasConfiguration, err := conn.GetAlias(params)
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if err != nil {
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return err
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}
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d.Set("description", aliasConfiguration.Description)
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d.Set("function_version", aliasConfiguration.FunctionVersion)
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d.Set("name", aliasConfiguration.Name)
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return nil
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}
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// resourceAwsLambdaAliasDelete maps to:
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// DeleteAlias in the API / SDK
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func resourceAwsLambdaAliasDelete(d *schema.ResourceData, meta interface{}) error {
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conn := meta.(*AWSClient).lambdaconn
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log.Printf("[INFO] Deleting Lambda alias: %s:%s", d.Get("function_name"), d.Get("name"))
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params := &lambda.DeleteAliasInput{
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FunctionName: aws.String(d.Get("function_name").(string)),
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Name: aws.String(d.Get("name").(string)),
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}
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_, err := conn.DeleteAlias(params)
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if err != nil {
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return fmt.Errorf("Error deleting Lambda alias: %s", err)
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}
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d.SetId("")
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return nil
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}
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// resourceAwsLambdaAliasUpdate maps to:
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// UpdateAlias in the API / SDK
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func resourceAwsLambdaAliasUpdate(d *schema.ResourceData, meta interface{}) error {
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conn := meta.(*AWSClient).lambdaconn
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log.Printf("[DEBUG] Updating Lambda alias: %s:%s", d.Get("function_name"), d.Get("name"))
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params := &lambda.UpdateAliasInput{
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Description: aws.String(d.Get("description").(string)),
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FunctionName: aws.String(d.Get("function_name").(string)),
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FunctionVersion: aws.String(d.Get("function_version").(string)),
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Name: aws.String(d.Get("name").(string)),
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}
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_, err := conn.UpdateAlias(params)
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if err != nil {
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return fmt.Errorf("Error updating Lambda alias: %s", err)
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}
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return nil
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}
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@ -0,0 +1,151 @@
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package aws
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import (
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"fmt"
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"testing"
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"github.com/aws/aws-sdk-go/aws"
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"github.com/aws/aws-sdk-go/service/lambda"
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"github.com/hashicorp/terraform/helper/resource"
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"github.com/hashicorp/terraform/terraform"
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)
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func TestAccAWSLambdaAlias_basic(t *testing.T) {
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var conf lambda.AliasConfiguration
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resource.Test(t, resource.TestCase{
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PreCheck: func() { testAccPreCheck(t) },
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Providers: testAccProviders,
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CheckDestroy: testAccCheckAwsLambdaAliasDestroy,
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Steps: []resource.TestStep{
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resource.TestStep{
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Config: testAccAwsLambdaAliasConfig,
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Check: resource.ComposeTestCheckFunc(
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testAccCheckAwsLambdaAliasExists("aws_lambda_alias.lambda_alias_test", &conf),
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testAccCheckAwsLambdaAttributes(&conf),
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),
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},
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},
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})
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}
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func testAccCheckAwsLambdaAliasDestroy(s *terraform.State) error {
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conn := testAccProvider.Meta().(*AWSClient).lambdaconn
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for _, rs := range s.RootModule().Resources {
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if rs.Type != "aws_lambda_alias" {
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continue
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}
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_, err := conn.GetAlias(&lambda.GetAliasInput{
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FunctionName: aws.String(rs.Primary.ID),
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})
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if err == nil {
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return fmt.Errorf("Lambda alias was not deleted")
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}
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}
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return nil
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}
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func testAccCheckAwsLambdaAliasExists(n string, mapping *lambda.AliasConfiguration) resource.TestCheckFunc {
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return func(s *terraform.State) error {
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rs, ok := s.RootModule().Resources[n]
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if !ok {
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return fmt.Errorf("Lambda alias not found: %s", n)
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}
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if rs.Primary.ID == "" {
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return fmt.Errorf("Lambda alias not set")
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}
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conn := testAccProvider.Meta().(*AWSClient).lambdaconn
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params := &lambda.GetAliasInput{
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FunctionName: aws.String(rs.Primary.ID),
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Name: aws.String("testalias"),
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}
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getAliasConfiguration, err := conn.GetAlias(params)
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if err != nil {
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return err
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}
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*mapping = *getAliasConfiguration
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return nil
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}
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}
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func testAccCheckAwsLambdaAttributes(mapping *lambda.AliasConfiguration) resource.TestCheckFunc {
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return func(s *terraform.State) error {
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name := *mapping.Name
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arn := *mapping.AliasArn
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if arn == "" {
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return fmt.Errorf("Could not read Lambda alias ARN")
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}
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if name == "" {
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return fmt.Errorf("Could not read Lambda alias name")
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}
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return nil
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}
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}
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const testAccAwsLambdaAliasConfig = `
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resource "aws_iam_role" "iam_for_lambda" {
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name = "iam_for_lambda"
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assume_role_policy = <<EOF
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{
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"Version": "2012-10-17",
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"Statement": [
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{
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"Action": "sts:AssumeRole",
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"Principal": {
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"Service": "lambda.amazonaws.com"
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},
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"Effect": "Allow",
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"Sid": ""
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}
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]
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}
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EOF
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}
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resource "aws_iam_policy" "policy_for_role" {
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name = "policy_for_role"
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path = "/"
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description = "IAM policy for for Lamda alias testing"
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policy = <<EOF
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{
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"Version": "2012-10-17",
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"Statement": [
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{
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"Effect": "Allow",
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"Action": [
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"lambda:*"
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],
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"Resource": "*"
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}
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]
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}
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EOF
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}
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resource "aws_iam_policy_attachment" "policy_attachment_for_role" {
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name = "policy_attachment_for_role"
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roles = ["${aws_iam_role.iam_for_lambda.name}"]
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policy_arn = "${aws_iam_policy.policy_for_role.arn}"
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}
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resource "aws_lambda_function" "lambda_function_test_create" {
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filename = "test-fixtures/lambdatest.zip"
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function_name = "example_lambda_name_create"
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role = "${aws_iam_role.iam_for_lambda.arn}"
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handler = "exports.example"
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}
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resource "aws_lambda_alias" "lambda_alias_test" {
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name = "testalias"
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description = "a sample description"
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function_name = "${aws_lambda_function.lambda_function_test_create.arn}"
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function_version = "$LATEST"
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}
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`
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@ -0,0 +1,35 @@
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---
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layout: "aws"
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page_title: "AWS: aws_lambda_alias"
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sidebar_current: "docs-aws-resource-aws-lambda-alias"
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description: |-
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Creates a Lambda function alias.
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---
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# aws\_lambda\_alias
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Creates a Lambda function alias. Creates an alias that points to the specified Lambda function version.
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For information about Lambda and how to use it, see [What is AWS Lambda?][1]
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For information about function aliases, see [CreateAlias][2] in the API docs.
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## Example Usage
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```
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resource "aws_lambda_alias" "test_alias" {
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name = "testalias"
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description = "a sample description"
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function_name = "${aws_lambda_function.lambda_function_test.arn}"
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function_version = "$LATEST"
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}
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```
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## Argument Reference
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* `name` - (Required) Name for the alias you are creating. Pattern: `(?!^[0-9]+$)([a-zA-Z0-9-_]+)`
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* `description` - (Optional) Description of the alias.
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* `function_name` - (Required) The function ARN of the Lambda function for which you want to create an alias.
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* `function_version` - (Required) Lambda function version for which you are creating the alias. Pattern: `(\$LATEST|[0-9]+)`.
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[1]: http://docs.aws.amazon.com/lambda/latest/dg/welcome.html
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[2]: http://docs.aws.amazon.com/lambda/latest/dg/API_CreateAlias.html
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