package aws import ( "fmt" "log" "strings" "time" "github.com/awslabs/aws-sdk-go/aws" "github.com/awslabs/aws-sdk-go/aws/awserr" "github.com/awslabs/aws-sdk-go/service/rds" "github.com/hashicorp/terraform/helper/resource" "github.com/hashicorp/terraform/helper/schema" ) func resourceAwsDbSubnetGroup() *schema.Resource { return &schema.Resource{ Create: resourceAwsDbSubnetGroupCreate, Read: resourceAwsDbSubnetGroupRead, Delete: resourceAwsDbSubnetGroupDelete, Schema: map[string]*schema.Schema{ "name": &schema.Schema{ Type: schema.TypeString, ForceNew: true, Required: true, }, "description": &schema.Schema{ Type: schema.TypeString, Required: true, ForceNew: true, }, "subnet_ids": &schema.Schema{ Type: schema.TypeSet, Required: true, ForceNew: true, Elem: &schema.Schema{Type: schema.TypeString}, Set: schema.HashString, }, }, } } func resourceAwsDbSubnetGroupCreate(d *schema.ResourceData, meta interface{}) error { rdsconn := meta.(*AWSClient).rdsconn subnetIdsSet := d.Get("subnet_ids").(*schema.Set) subnetIds := make([]*string, subnetIdsSet.Len()) for i, subnetId := range subnetIdsSet.List() { subnetIds[i] = aws.String(subnetId.(string)) } createOpts := rds.CreateDBSubnetGroupInput{ DBSubnetGroupName: aws.String(d.Get("name").(string)), DBSubnetGroupDescription: aws.String(d.Get("description").(string)), SubnetIDs: subnetIds, } log.Printf("[DEBUG] Create DB Subnet Group: %#v", createOpts) _, err := rdsconn.CreateDBSubnetGroup(&createOpts) if err != nil { return fmt.Errorf("Error creating DB Subnet Group: %s", err) } d.SetId(*createOpts.DBSubnetGroupName) log.Printf("[INFO] DB Subnet Group ID: %s", d.Id()) return resourceAwsDbSubnetGroupRead(d, meta) } func resourceAwsDbSubnetGroupRead(d *schema.ResourceData, meta interface{}) error { rdsconn := meta.(*AWSClient).rdsconn describeOpts := rds.DescribeDBSubnetGroupsInput{ DBSubnetGroupName: aws.String(d.Id()), } describeResp, err := rdsconn.DescribeDBSubnetGroups(&describeOpts) if err != nil { if ec2err, ok := err.(awserr.Error); ok && ec2err.Code() == "DBSubnetGroupNotFoundFault" { // Update state to indicate the db subnet no longer exists. d.SetId("") return nil } return err } if len(describeResp.DBSubnetGroups) == 0 { return fmt.Errorf("Unable to find DB Subnet Group: %#v", describeResp.DBSubnetGroups) } var subnetGroup *rds.DBSubnetGroup for _, s := range describeResp.DBSubnetGroups { // AWS is down casing the name provided, so we compare lower case versions // of the names. We lower case both our name and their name in the check, // incase they change that someday. if strings.ToLower(d.Id()) == strings.ToLower(*s.DBSubnetGroupName) { subnetGroup = describeResp.DBSubnetGroups[0] } } if subnetGroup.DBSubnetGroupName == nil { return fmt.Errorf("Unable to find DB Subnet Group: %#v", describeResp.DBSubnetGroups) } d.Set("name", d.Id()) d.Set("description", *subnetGroup.DBSubnetGroupDescription) subnets := make([]string, 0, len(subnetGroup.Subnets)) for _, s := range subnetGroup.Subnets { subnets = append(subnets, *s.SubnetIdentifier) } d.Set("subnet_ids", subnets) return nil } func resourceAwsDbSubnetGroupDelete(d *schema.ResourceData, meta interface{}) error { stateConf := &resource.StateChangeConf{ Pending: []string{"pending"}, Target: "destroyed", Refresh: resourceAwsDbSubnetGroupDeleteRefreshFunc(d, meta), Timeout: 3 * time.Minute, MinTimeout: 1 * time.Second, } _, err := stateConf.WaitForState() return err } func resourceAwsDbSubnetGroupDeleteRefreshFunc( d *schema.ResourceData, meta interface{}) resource.StateRefreshFunc { rdsconn := meta.(*AWSClient).rdsconn return func() (interface{}, string, error) { deleteOpts := rds.DeleteDBSubnetGroupInput{ DBSubnetGroupName: aws.String(d.Id()), } if _, err := rdsconn.DeleteDBSubnetGroup(&deleteOpts); err != nil { rdserr, ok := err.(awserr.Error) if !ok { return d, "error", err } if rdserr.Code() != "DBSubnetGroupNotFoundFault" { return d, "error", err } } return d, "destroyed", nil } }