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resource_aws_rds_cluster_instance.go
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resource_aws_rds_cluster_instance.go
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package aws
import (
"fmt"
"log"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/service/rds"
"github.com/hashicorp/terraform/helper/resource"
"github.com/hashicorp/terraform/helper/schema"
)
func resourceAwsRDSClusterInstance() *schema.Resource {
return &schema.Resource{
Create: resourceAwsRDSClusterInstanceCreate,
Read: resourceAwsRDSClusterInstanceRead,
Update: resourceAwsRDSClusterInstanceUpdate,
Delete: resourceAwsRDSClusterInstanceDelete,
Importer: &schema.ResourceImporter{
State: schema.ImportStatePassthrough,
},
Schema: map[string]*schema.Schema{
"identifier": &schema.Schema{
Type: schema.TypeString,
Optional: true,
ForceNew: true,
ValidateFunc: validateRdsId,
},
"db_subnet_group_name": &schema.Schema{
Type: schema.TypeString,
Optional: true,
ForceNew: true,
Computed: true,
},
"writer": &schema.Schema{
Type: schema.TypeBool,
Computed: true,
},
"cluster_identifier": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"endpoint": &schema.Schema{
Type: schema.TypeString,
Computed: true,
},
"port": &schema.Schema{
Type: schema.TypeInt,
Computed: true,
},
"publicly_accessible": &schema.Schema{
Type: schema.TypeBool,
Optional: true,
Default: false,
},
"instance_class": &schema.Schema{
Type: schema.TypeString,
Required: true,
},
"db_parameter_group_name": &schema.Schema{
Type: schema.TypeString,
Optional: true,
Computed: true,
},
// apply_immediately is used to determine when the update modifications
// take place.
// See http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Overview.DBInstance.Modifying.html
"apply_immediately": &schema.Schema{
Type: schema.TypeBool,
Optional: true,
Computed: true,
},
"kms_key_id": &schema.Schema{
Type: schema.TypeString,
Computed: true,
},
"storage_encrypted": &schema.Schema{
Type: schema.TypeBool,
Computed: true,
},
"monitoring_role_arn": &schema.Schema{
Type: schema.TypeString,
Optional: true,
Computed: true,
},
"monitoring_interval": &schema.Schema{
Type: schema.TypeInt,
Optional: true,
Default: 0,
},
"promotion_tier": &schema.Schema{
Type: schema.TypeInt,
Optional: true,
Default: 0,
},
"tags": tagsSchema(),
},
}
}
func resourceAwsRDSClusterInstanceCreate(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).rdsconn
tags := tagsFromMapRDS(d.Get("tags").(map[string]interface{}))
createOpts := &rds.CreateDBInstanceInput{
DBInstanceClass: aws.String(d.Get("instance_class").(string)),
DBClusterIdentifier: aws.String(d.Get("cluster_identifier").(string)),
Engine: aws.String("aurora"),
PubliclyAccessible: aws.Bool(d.Get("publicly_accessible").(bool)),
PromotionTier: aws.Int64(int64(d.Get("promotion_tier").(int))),
Tags: tags,
}
if attr, ok := d.GetOk("db_parameter_group_name"); ok {
createOpts.DBParameterGroupName = aws.String(attr.(string))
}
if v := d.Get("identifier").(string); v != "" {
createOpts.DBInstanceIdentifier = aws.String(v)
} else {
createOpts.DBInstanceIdentifier = aws.String(resource.UniqueId())
}
if attr, ok := d.GetOk("db_subnet_group_name"); ok {
createOpts.DBSubnetGroupName = aws.String(attr.(string))
}
if attr, ok := d.GetOk("monitoring_role_arn"); ok {
createOpts.MonitoringRoleArn = aws.String(attr.(string))
}
if attr, ok := d.GetOk("monitoring_interval"); ok {
createOpts.MonitoringInterval = aws.Int64(int64(attr.(int)))
}
log.Printf("[DEBUG] Creating RDS DB Instance opts: %s", createOpts)
resp, err := conn.CreateDBInstance(createOpts)
if err != nil {
return err
}
d.SetId(*resp.DBInstance.DBInstanceIdentifier)
// reuse db_instance refresh func
stateConf := &resource.StateChangeConf{
Pending: []string{"creating", "backing-up", "modifying"},
Target: []string{"available"},
Refresh: resourceAwsDbInstanceStateRefreshFunc(d, meta),
Timeout: 40 * time.Minute,
MinTimeout: 10 * time.Second,
Delay: 10 * time.Second,
}
// Wait, catching any errors
_, err = stateConf.WaitForState()
if err != nil {
return err
}
return resourceAwsRDSClusterInstanceRead(d, meta)
}
func resourceAwsRDSClusterInstanceRead(d *schema.ResourceData, meta interface{}) error {
db, err := resourceAwsDbInstanceRetrieve(d, meta)
// Errors from this helper are always reportable
if err != nil {
return fmt.Errorf("[WARN] Error on retrieving RDS Cluster Instance (%s): %s", d.Id(), err)
}
// A nil response means "not found"
if db == nil {
log.Printf("[WARN] RDS Cluster Instance (%s): not found, removing from state.", d.Id())
d.SetId("")
return nil
}
// Retrieve DB Cluster information, to determine if this Instance is a writer
conn := meta.(*AWSClient).rdsconn
resp, err := conn.DescribeDBClusters(&rds.DescribeDBClustersInput{
DBClusterIdentifier: db.DBClusterIdentifier,
})
var dbc *rds.DBCluster
for _, c := range resp.DBClusters {
if *c.DBClusterIdentifier == *db.DBClusterIdentifier {
dbc = c
}
}
if dbc == nil {
return fmt.Errorf("[WARN] Error finding RDS Cluster (%s) for Cluster Instance (%s): %s",
*db.DBClusterIdentifier, *db.DBInstanceIdentifier, err)
}
for _, m := range dbc.DBClusterMembers {
if *db.DBInstanceIdentifier == *m.DBInstanceIdentifier {
if *m.IsClusterWriter == true {
d.Set("writer", true)
} else {
d.Set("writer", false)
}
}
}
if db.Endpoint != nil {
d.Set("endpoint", db.Endpoint.Address)
d.Set("port", db.Endpoint.Port)
}
d.Set("publicly_accessible", db.PubliclyAccessible)
d.Set("cluster_identifier", db.DBClusterIdentifier)
d.Set("instance_class", db.DBInstanceClass)
d.Set("identifier", db.DBInstanceIdentifier)
d.Set("storage_encrypted", db.StorageEncrypted)
d.Set("kms_key_id", db.KmsKeyId)
d.Set("promotion_tier", db.PromotionTier)
if db.MonitoringInterval != nil {
d.Set("monitoring_interval", db.MonitoringInterval)
}
if db.MonitoringRoleArn != nil {
d.Set("monitoring_role_arn", db.MonitoringRoleArn)
}
if len(db.DBParameterGroups) > 0 {
d.Set("db_parameter_group_name", db.DBParameterGroups[0].DBParameterGroupName)
}
// Fetch and save tags
arn, err := buildRDSARN(d.Id(), meta.(*AWSClient).partition, meta.(*AWSClient).accountid, meta.(*AWSClient).region)
if err != nil {
log.Printf("[DEBUG] Error building ARN for RDS Cluster Instance (%s), not setting Tags", *db.DBInstanceIdentifier)
} else {
if err := saveTagsRDS(conn, d, arn); err != nil {
log.Printf("[WARN] Failed to save tags for RDS Cluster Instance (%s): %s", *db.DBClusterIdentifier, err)
}
}
return nil
}
func resourceAwsRDSClusterInstanceUpdate(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).rdsconn
requestUpdate := false
req := &rds.ModifyDBInstanceInput{
ApplyImmediately: aws.Bool(d.Get("apply_immediately").(bool)),
DBInstanceIdentifier: aws.String(d.Id()),
}
if d.HasChange("db_parameter_group_name") {
req.DBParameterGroupName = aws.String(d.Get("db_parameter_group_name").(string))
requestUpdate = true
}
if d.HasChange("instance_class") {
req.DBInstanceClass = aws.String(d.Get("instance_class").(string))
requestUpdate = true
}
if d.HasChange("monitoring_role_arn") {
d.SetPartial("monitoring_role_arn")
req.MonitoringRoleArn = aws.String(d.Get("monitoring_role_arn").(string))
requestUpdate = true
}
if d.HasChange("monitoring_interval") {
d.SetPartial("monitoring_interval")
req.MonitoringInterval = aws.Int64(int64(d.Get("monitoring_interval").(int)))
requestUpdate = true
}
if d.HasChange("promotion_tier") {
d.SetPartial("promotion_tier")
req.PromotionTier = aws.Int64(int64(d.Get("promotion_tier").(int)))
requestUpdate = true
}
log.Printf("[DEBUG] Send DB Instance Modification request: %#v", requestUpdate)
if requestUpdate {
log.Printf("[DEBUG] DB Instance Modification request: %#v", req)
_, err := conn.ModifyDBInstance(req)
if err != nil {
return fmt.Errorf("Error modifying DB Instance %s: %s", d.Id(), err)
}
// reuse db_instance refresh func
stateConf := &resource.StateChangeConf{
Pending: []string{"creating", "backing-up", "modifying"},
Target: []string{"available"},
Refresh: resourceAwsDbInstanceStateRefreshFunc(d, meta),
Timeout: 40 * time.Minute,
MinTimeout: 10 * time.Second,
Delay: 10 * time.Second,
}
// Wait, catching any errors
_, err = stateConf.WaitForState()
if err != nil {
return err
}
}
if arn, err := buildRDSARN(d.Id(), meta.(*AWSClient).partition, meta.(*AWSClient).accountid, meta.(*AWSClient).region); err == nil {
if err := setTagsRDS(conn, d, arn); err != nil {
return err
}
}
return resourceAwsRDSClusterInstanceRead(d, meta)
}
func resourceAwsRDSClusterInstanceDelete(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).rdsconn
log.Printf("[DEBUG] RDS Cluster Instance destroy: %v", d.Id())
opts := rds.DeleteDBInstanceInput{DBInstanceIdentifier: aws.String(d.Id())}
log.Printf("[DEBUG] RDS Cluster Instance destroy configuration: %s", opts)
if _, err := conn.DeleteDBInstance(&opts); err != nil {
return err
}
// re-uses db_instance refresh func
log.Println("[INFO] Waiting for RDS Cluster Instance to be destroyed")
stateConf := &resource.StateChangeConf{
Pending: []string{"modifying", "deleting"},
Target: []string{},
Refresh: resourceAwsDbInstanceStateRefreshFunc(d, meta),
Timeout: 40 * time.Minute,
MinTimeout: 10 * time.Second,
}
if _, err := stateConf.WaitForState(); err != nil {
return err
}
return nil
}