forked from hashicorp/terraform
/
resource_aws_rds_cluster_parameter_group.go
275 lines (232 loc) · 8.12 KB
/
resource_aws_rds_cluster_parameter_group.go
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package aws
import (
"fmt"
"log"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/service/rds"
"github.com/hashicorp/terraform/helper/resource"
"github.com/hashicorp/terraform/helper/schema"
)
func resourceAwsRDSClusterParameterGroup() *schema.Resource {
return &schema.Resource{
Create: resourceAwsRDSClusterParameterGroupCreate,
Read: resourceAwsRDSClusterParameterGroupRead,
Update: resourceAwsRDSClusterParameterGroupUpdate,
Delete: resourceAwsRDSClusterParameterGroupDelete,
Importer: &schema.ResourceImporter{
State: schema.ImportStatePassthrough,
},
Schema: map[string]*schema.Schema{
"arn": &schema.Schema{
Type: schema.TypeString,
Computed: true,
},
"name": &schema.Schema{
Type: schema.TypeString,
ForceNew: true,
Required: true,
ValidateFunc: validateDbParamGroupName,
},
"family": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"description": &schema.Schema{
Type: schema.TypeString,
Optional: true,
ForceNew: true,
Default: "Managed by Terraform",
},
"parameter": &schema.Schema{
Type: schema.TypeSet,
Optional: true,
ForceNew: false,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"name": &schema.Schema{
Type: schema.TypeString,
Required: true,
},
"value": &schema.Schema{
Type: schema.TypeString,
Required: true,
},
"apply_method": &schema.Schema{
Type: schema.TypeString,
Optional: true,
Default: "immediate",
// this parameter is not actually state, but a
// meta-parameter describing how the RDS API call
// to modify the parameter group should be made.
// Future reads of the resource from AWS don't tell
// us what we used for apply_method previously, so
// by squashing state to an empty string we avoid
// needing to do an update for every future run.
StateFunc: func(interface{}) string { return "" },
},
},
},
Set: resourceAwsDbParameterHash,
},
"tags": tagsSchema(),
},
}
}
func resourceAwsRDSClusterParameterGroupCreate(d *schema.ResourceData, meta interface{}) error {
rdsconn := meta.(*AWSClient).rdsconn
tags := tagsFromMapRDS(d.Get("tags").(map[string]interface{}))
createOpts := rds.CreateDBClusterParameterGroupInput{
DBClusterParameterGroupName: aws.String(d.Get("name").(string)),
DBParameterGroupFamily: aws.String(d.Get("family").(string)),
Description: aws.String(d.Get("description").(string)),
Tags: tags,
}
log.Printf("[DEBUG] Create DB Cluster Parameter Group: %#v", createOpts)
_, err := rdsconn.CreateDBClusterParameterGroup(&createOpts)
if err != nil {
return fmt.Errorf("Error creating DB Cluster Parameter Group: %s", err)
}
d.SetId(*createOpts.DBClusterParameterGroupName)
log.Printf("[INFO] DB Cluster Parameter Group ID: %s", d.Id())
return resourceAwsRDSClusterParameterGroupUpdate(d, meta)
}
func resourceAwsRDSClusterParameterGroupRead(d *schema.ResourceData, meta interface{}) error {
rdsconn := meta.(*AWSClient).rdsconn
describeOpts := rds.DescribeDBClusterParameterGroupsInput{
DBClusterParameterGroupName: aws.String(d.Id()),
}
describeResp, err := rdsconn.DescribeDBClusterParameterGroups(&describeOpts)
if err != nil {
if awsErr, ok := err.(awserr.Error); ok && awsErr.Code() == "DBParameterGroupNotFound" {
log.Printf("[WARN] DB Cluster Parameter Group (%s) not found, error code (404)", d.Id())
d.SetId("")
return nil
}
return err
}
if len(describeResp.DBClusterParameterGroups) != 1 ||
*describeResp.DBClusterParameterGroups[0].DBClusterParameterGroupName != d.Id() {
return fmt.Errorf("Unable to find Cluster Parameter Group: %#v", describeResp.DBClusterParameterGroups)
}
d.Set("name", describeResp.DBClusterParameterGroups[0].DBClusterParameterGroupName)
d.Set("family", describeResp.DBClusterParameterGroups[0].DBParameterGroupFamily)
d.Set("description", describeResp.DBClusterParameterGroups[0].Description)
// Only include user customized parameters as there's hundreds of system/default ones
describeParametersOpts := rds.DescribeDBClusterParametersInput{
DBClusterParameterGroupName: aws.String(d.Id()),
Source: aws.String("user"),
}
describeParametersResp, err := rdsconn.DescribeDBClusterParameters(&describeParametersOpts)
if err != nil {
return err
}
d.Set("parameter", flattenParameters(describeParametersResp.Parameters))
paramGroup := describeResp.DBClusterParameterGroups[0]
arn, err := buildRDSCPGARN(d.Id(), meta.(*AWSClient).partition, meta.(*AWSClient).accountid, meta.(*AWSClient).region)
if err != nil {
name := "<empty>"
if paramGroup.DBClusterParameterGroupName != nil && *paramGroup.DBClusterParameterGroupName != "" {
name = *paramGroup.DBClusterParameterGroupName
}
log.Printf("[DEBUG] Error building ARN for DB Cluster Parameter Group, not setting Tags for Cluster Param Group %s", name)
} else {
d.Set("arn", arn)
resp, err := rdsconn.ListTagsForResource(&rds.ListTagsForResourceInput{
ResourceName: aws.String(arn),
})
if err != nil {
log.Printf("[DEBUG] Error retrieving tags for ARN: %s", arn)
}
var dt []*rds.Tag
if len(resp.TagList) > 0 {
dt = resp.TagList
}
d.Set("tags", tagsToMapRDS(dt))
}
return nil
}
func resourceAwsRDSClusterParameterGroupUpdate(d *schema.ResourceData, meta interface{}) error {
rdsconn := meta.(*AWSClient).rdsconn
d.Partial(true)
if d.HasChange("parameter") {
o, n := d.GetChange("parameter")
if o == nil {
o = new(schema.Set)
}
if n == nil {
n = new(schema.Set)
}
os := o.(*schema.Set)
ns := n.(*schema.Set)
// Expand the "parameter" set to aws-sdk-go compat []rds.Parameter
parameters, err := expandParameters(ns.Difference(os).List())
if err != nil {
return err
}
if len(parameters) > 0 {
modifyOpts := rds.ModifyDBClusterParameterGroupInput{
DBClusterParameterGroupName: aws.String(d.Get("name").(string)),
Parameters: parameters,
}
log.Printf("[DEBUG] Modify DB Cluster Parameter Group: %s", modifyOpts)
_, err = rdsconn.ModifyDBClusterParameterGroup(&modifyOpts)
if err != nil {
return fmt.Errorf("Error modifying DB Cluster Parameter Group: %s", err)
}
}
d.SetPartial("parameter")
}
if arn, err := buildRDSCPGARN(d.Id(), meta.(*AWSClient).partition, meta.(*AWSClient).accountid, meta.(*AWSClient).region); err == nil {
if err := setTagsRDS(rdsconn, d, arn); err != nil {
return err
} else {
d.SetPartial("tags")
}
}
d.Partial(false)
return resourceAwsRDSClusterParameterGroupRead(d, meta)
}
func resourceAwsRDSClusterParameterGroupDelete(d *schema.ResourceData, meta interface{}) error {
stateConf := &resource.StateChangeConf{
Pending: []string{"pending"},
Target: []string{"destroyed"},
Refresh: resourceAwsRDSClusterParameterGroupDeleteRefreshFunc(d, meta),
Timeout: 3 * time.Minute,
MinTimeout: 1 * time.Second,
}
_, err := stateConf.WaitForState()
return err
}
func resourceAwsRDSClusterParameterGroupDeleteRefreshFunc(
d *schema.ResourceData,
meta interface{}) resource.StateRefreshFunc {
rdsconn := meta.(*AWSClient).rdsconn
return func() (interface{}, string, error) {
deleteOpts := rds.DeleteDBClusterParameterGroupInput{
DBClusterParameterGroupName: aws.String(d.Id()),
}
if _, err := rdsconn.DeleteDBClusterParameterGroup(&deleteOpts); err != nil {
rdserr, ok := err.(awserr.Error)
if !ok {
return d, "error", err
}
if rdserr.Code() != "DBParameterGroupNotFound" {
return d, "error", err
}
}
return d, "destroyed", nil
}
}
func buildRDSCPGARN(identifier, partition, accountid, region string) (string, error) {
if partition == "" {
return "", fmt.Errorf("Unable to construct RDS Cluster ARN because of missing AWS partition")
}
if accountid == "" {
return "", fmt.Errorf("Unable to construct RDS Cluster ARN because of missing AWS Account ID")
}
arn := fmt.Sprintf("arn:%s:rds:%s:%s:cluster-pg:%s", partition, region, accountid, identifier)
return arn, nil
}