425 lines
12 KiB
Go
425 lines
12 KiB
Go
package aws
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import (
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"fmt"
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"log"
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"regexp"
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"strings"
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"time"
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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/service/rds"
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"github.com/hashicorp/terraform/helper/resource"
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"github.com/hashicorp/terraform/helper/schema"
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)
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func resourceAwsRDSCluster() *schema.Resource {
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return &schema.Resource{
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Create: resourceAwsRDSClusterCreate,
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Read: resourceAwsRDSClusterRead,
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Update: resourceAwsRDSClusterUpdate,
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Delete: resourceAwsRDSClusterDelete,
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Schema: map[string]*schema.Schema{
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"availability_zones": &schema.Schema{
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Type: schema.TypeSet,
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Elem: &schema.Schema{Type: schema.TypeString},
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Optional: true,
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ForceNew: true,
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Computed: true,
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Set: schema.HashString,
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},
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"cluster_identifier": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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ForceNew: true,
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ValidateFunc: validateRdsId,
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},
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"cluster_members": &schema.Schema{
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Type: schema.TypeSet,
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Elem: &schema.Schema{Type: schema.TypeString},
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Optional: true,
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Computed: true,
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Set: schema.HashString,
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},
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"database_name": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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Computed: true,
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ForceNew: true,
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},
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"db_subnet_group_name": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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ForceNew: true,
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Computed: true,
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},
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"endpoint": &schema.Schema{
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Type: schema.TypeString,
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Computed: true,
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},
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"engine": &schema.Schema{
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Type: schema.TypeString,
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Computed: true,
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},
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"storage_encrypted": &schema.Schema{
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Type: schema.TypeBool,
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Optional: true,
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Default: false,
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ForceNew: true,
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},
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"final_snapshot_identifier": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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ValidateFunc: func(v interface{}, k string) (ws []string, es []error) {
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value := v.(string)
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if !regexp.MustCompile(`^[0-9A-Za-z-]+$`).MatchString(value) {
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es = append(es, fmt.Errorf(
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"only alphanumeric characters and hyphens allowed in %q", k))
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}
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if regexp.MustCompile(`--`).MatchString(value) {
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es = append(es, fmt.Errorf("%q cannot contain two consecutive hyphens", k))
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}
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if regexp.MustCompile(`-$`).MatchString(value) {
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es = append(es, fmt.Errorf("%q cannot end in a hyphen", k))
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}
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return
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},
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},
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"master_username": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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ForceNew: true,
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},
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"master_password": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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},
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"port": &schema.Schema{
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Type: schema.TypeInt,
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Optional: true,
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Computed: true,
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},
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// apply_immediately is used to determine when the update modifications
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// take place.
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// See http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Overview.DBInstance.Modifying.html
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"apply_immediately": &schema.Schema{
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Type: schema.TypeBool,
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Optional: true,
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Computed: true,
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},
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"vpc_security_group_ids": &schema.Schema{
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Type: schema.TypeSet,
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Optional: true,
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Computed: true,
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Elem: &schema.Schema{Type: schema.TypeString},
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Set: schema.HashString,
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},
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"preferred_backup_window": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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Computed: true,
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},
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"preferred_maintenance_window": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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Computed: true,
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StateFunc: func(val interface{}) string {
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if val == nil {
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return ""
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}
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return strings.ToLower(val.(string))
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},
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},
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"backup_retention_period": &schema.Schema{
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Type: schema.TypeInt,
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Optional: true,
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Default: 1,
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ValidateFunc: func(v interface{}, k string) (ws []string, es []error) {
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value := v.(int)
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if value > 35 {
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es = append(es, fmt.Errorf(
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"backup retention period cannot be more than 35 days"))
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}
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return
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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 resourceAwsRDSClusterCreate(d *schema.ResourceData, meta interface{}) error {
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conn := meta.(*AWSClient).rdsconn
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createOpts := &rds.CreateDBClusterInput{
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DBClusterIdentifier: aws.String(d.Get("cluster_identifier").(string)),
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Engine: aws.String("aurora"),
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MasterUserPassword: aws.String(d.Get("master_password").(string)),
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MasterUsername: aws.String(d.Get("master_username").(string)),
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StorageEncrypted: aws.Bool(d.Get("storage_encrypted").(bool)),
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}
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if v := d.Get("database_name"); v.(string) != "" {
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createOpts.DatabaseName = aws.String(v.(string))
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}
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if attr, ok := d.GetOk("port"); ok {
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createOpts.Port = aws.Int64(int64(attr.(int)))
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}
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if attr, ok := d.GetOk("db_subnet_group_name"); ok {
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createOpts.DBSubnetGroupName = aws.String(attr.(string))
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}
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if attr := d.Get("vpc_security_group_ids").(*schema.Set); attr.Len() > 0 {
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createOpts.VpcSecurityGroupIds = expandStringList(attr.List())
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}
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if attr := d.Get("availability_zones").(*schema.Set); attr.Len() > 0 {
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createOpts.AvailabilityZones = expandStringList(attr.List())
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}
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if v, ok := d.GetOk("backup_retention_period"); ok {
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createOpts.BackupRetentionPeriod = aws.Int64(int64(v.(int)))
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}
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if v, ok := d.GetOk("preferred_backup_window"); ok {
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createOpts.PreferredBackupWindow = aws.String(v.(string))
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}
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if v, ok := d.GetOk("preferred_maintenance_window"); ok {
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createOpts.PreferredMaintenanceWindow = aws.String(v.(string))
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}
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log.Printf("[DEBUG] RDS Cluster create options: %s", createOpts)
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resp, err := conn.CreateDBCluster(createOpts)
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if err != nil {
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log.Printf("[ERROR] Error creating RDS Cluster: %s", err)
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return err
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}
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log.Printf("[DEBUG]: Cluster create response: %s", resp)
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d.SetId(*resp.DBCluster.DBClusterIdentifier)
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stateConf := &resource.StateChangeConf{
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Pending: []string{"creating", "backing-up", "modifying"},
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Target: []string{"available"},
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Refresh: resourceAwsRDSClusterStateRefreshFunc(d, meta),
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Timeout: 5 * time.Minute,
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MinTimeout: 3 * time.Second,
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}
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// Wait, catching any errors
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_, err = stateConf.WaitForState()
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if err != nil {
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return fmt.Errorf("[WARN] Error waiting for RDS Cluster state to be \"available\": %s", err)
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}
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return resourceAwsRDSClusterRead(d, meta)
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}
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func resourceAwsRDSClusterRead(d *schema.ResourceData, meta interface{}) error {
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conn := meta.(*AWSClient).rdsconn
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resp, err := conn.DescribeDBClusters(&rds.DescribeDBClustersInput{
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DBClusterIdentifier: aws.String(d.Id()),
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})
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if err != nil {
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if awsErr, ok := err.(awserr.Error); ok {
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if "DBClusterNotFoundFault" == awsErr.Code() {
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d.SetId("")
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log.Printf("[DEBUG] RDS Cluster (%s) not found", d.Id())
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return nil
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}
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}
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log.Printf("[DEBUG] Error describing RDS Cluster (%s)", d.Id())
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return err
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}
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var dbc *rds.DBCluster
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for _, c := range resp.DBClusters {
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if *c.DBClusterIdentifier == d.Id() {
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dbc = c
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}
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}
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if dbc == nil {
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log.Printf("[WARN] RDS Cluster (%s) not found", d.Id())
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d.SetId("")
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return nil
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}
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if err := d.Set("availability_zones", aws.StringValueSlice(dbc.AvailabilityZones)); err != nil {
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return fmt.Errorf("[DEBUG] Error saving AvailabilityZones to state for RDS Cluster (%s): %s", d.Id(), err)
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}
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// Only set the DatabaseName if it is not nil. There is a known API bug where
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// RDS accepts a DatabaseName but does not return it, causing a perpetual
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// diff.
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// See https://github.com/hashicorp/terraform/issues/4671 for backstory
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if dbc.DatabaseName != nil {
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d.Set("database_name", dbc.DatabaseName)
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}
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d.Set("db_subnet_group_name", dbc.DBSubnetGroup)
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d.Set("endpoint", dbc.Endpoint)
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d.Set("engine", dbc.Engine)
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d.Set("master_username", dbc.MasterUsername)
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d.Set("port", dbc.Port)
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d.Set("storage_encrypted", dbc.StorageEncrypted)
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d.Set("backup_retention_period", dbc.BackupRetentionPeriod)
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d.Set("preferred_backup_window", dbc.PreferredBackupWindow)
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d.Set("preferred_maintenance_window", dbc.PreferredMaintenanceWindow)
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var vpcg []string
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for _, g := range dbc.VpcSecurityGroups {
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vpcg = append(vpcg, *g.VpcSecurityGroupId)
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}
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if err := d.Set("vpc_security_group_ids", vpcg); err != nil {
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return fmt.Errorf("[DEBUG] Error saving VPC Security Group IDs to state for RDS Cluster (%s): %s", d.Id(), err)
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}
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var cm []string
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for _, m := range dbc.DBClusterMembers {
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cm = append(cm, *m.DBInstanceIdentifier)
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}
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if err := d.Set("cluster_members", cm); err != nil {
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return fmt.Errorf("[DEBUG] Error saving RDS Cluster Members to state for RDS Cluster (%s): %s", d.Id(), err)
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}
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return nil
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}
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func resourceAwsRDSClusterUpdate(d *schema.ResourceData, meta interface{}) error {
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conn := meta.(*AWSClient).rdsconn
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req := &rds.ModifyDBClusterInput{
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ApplyImmediately: aws.Bool(d.Get("apply_immediately").(bool)),
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DBClusterIdentifier: aws.String(d.Id()),
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}
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if d.HasChange("master_password") {
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req.MasterUserPassword = aws.String(d.Get("master_password").(string))
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}
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if d.HasChange("vpc_security_group_ids") {
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if attr := d.Get("vpc_security_group_ids").(*schema.Set); attr.Len() > 0 {
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req.VpcSecurityGroupIds = expandStringList(attr.List())
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} else {
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req.VpcSecurityGroupIds = []*string{}
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}
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}
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if d.HasChange("preferred_backup_window") {
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req.PreferredBackupWindow = aws.String(d.Get("preferred_backup_window").(string))
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}
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if d.HasChange("preferred_maintenance_window") {
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req.PreferredMaintenanceWindow = aws.String(d.Get("preferred_maintenance_window").(string))
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}
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if d.HasChange("backup_retention_period") {
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req.BackupRetentionPeriod = aws.Int64(int64(d.Get("backup_retention_period").(int)))
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}
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_, err := conn.ModifyDBCluster(req)
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if err != nil {
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return fmt.Errorf("[WARN] Error modifying RDS Cluster (%s): %s", d.Id(), err)
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}
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return resourceAwsRDSClusterRead(d, meta)
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}
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func resourceAwsRDSClusterDelete(d *schema.ResourceData, meta interface{}) error {
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conn := meta.(*AWSClient).rdsconn
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log.Printf("[DEBUG] Destroying RDS Cluster (%s)", d.Id())
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deleteOpts := rds.DeleteDBClusterInput{
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DBClusterIdentifier: aws.String(d.Id()),
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}
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finalSnapshot := d.Get("final_snapshot_identifier").(string)
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if finalSnapshot == "" {
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deleteOpts.SkipFinalSnapshot = aws.Bool(true)
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} else {
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deleteOpts.FinalDBSnapshotIdentifier = aws.String(finalSnapshot)
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deleteOpts.SkipFinalSnapshot = aws.Bool(false)
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}
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log.Printf("[DEBUG] RDS Cluster delete options: %s", deleteOpts)
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_, err := conn.DeleteDBCluster(&deleteOpts)
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stateConf := &resource.StateChangeConf{
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Pending: []string{"available", "deleting", "backing-up", "modifying"},
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Target: []string{"destroyed"},
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Refresh: resourceAwsRDSClusterStateRefreshFunc(d, meta),
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Timeout: 5 * time.Minute,
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MinTimeout: 3 * time.Second,
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}
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// Wait, catching any errors
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_, err = stateConf.WaitForState()
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if err != nil {
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return fmt.Errorf("[WARN] Error deleting RDS Cluster (%s): %s", d.Id(), err)
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}
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return nil
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}
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func resourceAwsRDSClusterStateRefreshFunc(
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d *schema.ResourceData, meta interface{}) resource.StateRefreshFunc {
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return func() (interface{}, string, error) {
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conn := meta.(*AWSClient).rdsconn
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resp, err := conn.DescribeDBClusters(&rds.DescribeDBClustersInput{
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DBClusterIdentifier: aws.String(d.Id()),
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})
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if err != nil {
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if awsErr, ok := err.(awserr.Error); ok {
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if "DBClusterNotFoundFault" == awsErr.Code() {
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return 42, "destroyed", nil
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}
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}
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log.Printf("[WARN] Error on retrieving DB Cluster (%s) when waiting: %s", d.Id(), err)
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return nil, "", err
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}
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var dbc *rds.DBCluster
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for _, c := range resp.DBClusters {
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if *c.DBClusterIdentifier == d.Id() {
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dbc = c
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}
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}
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if dbc == nil {
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return 42, "destroyed", nil
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}
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if dbc.Status != nil {
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log.Printf("[DEBUG] DB Cluster status (%s): %s", d.Id(), *dbc.Status)
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}
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return dbc, *dbc.Status, nil
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}
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}
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