github.com/i0n/terraform@v0.4.3-0.20150506151324-010a39a58ec1/builtin/providers/aws/resource_aws_db_subnet_group.go (about)

     1  package aws
     2  
     3  import (
     4  	"fmt"
     5  	"log"
     6  	"strings"
     7  	"time"
     8  
     9  	"github.com/awslabs/aws-sdk-go/aws"
    10  	"github.com/awslabs/aws-sdk-go/service/rds"
    11  	"github.com/hashicorp/terraform/helper/resource"
    12  	"github.com/hashicorp/terraform/helper/schema"
    13  )
    14  
    15  func resourceAwsDbSubnetGroup() *schema.Resource {
    16  	return &schema.Resource{
    17  		Create: resourceAwsDbSubnetGroupCreate,
    18  		Read:   resourceAwsDbSubnetGroupRead,
    19  		Delete: resourceAwsDbSubnetGroupDelete,
    20  
    21  		Schema: map[string]*schema.Schema{
    22  			"name": &schema.Schema{
    23  				Type:     schema.TypeString,
    24  				ForceNew: true,
    25  				Required: true,
    26  			},
    27  
    28  			"description": &schema.Schema{
    29  				Type:     schema.TypeString,
    30  				Required: true,
    31  				ForceNew: true,
    32  			},
    33  
    34  			"subnet_ids": &schema.Schema{
    35  				Type:     schema.TypeSet,
    36  				Required: true,
    37  				ForceNew: true,
    38  				Elem:     &schema.Schema{Type: schema.TypeString},
    39  				Set:      schema.HashString,
    40  			},
    41  		},
    42  	}
    43  }
    44  
    45  func resourceAwsDbSubnetGroupCreate(d *schema.ResourceData, meta interface{}) error {
    46  	rdsconn := meta.(*AWSClient).rdsconn
    47  
    48  	subnetIdsSet := d.Get("subnet_ids").(*schema.Set)
    49  	subnetIds := make([]*string, subnetIdsSet.Len())
    50  	for i, subnetId := range subnetIdsSet.List() {
    51  		subnetIds[i] = aws.String(subnetId.(string))
    52  	}
    53  
    54  	createOpts := rds.CreateDBSubnetGroupInput{
    55  		DBSubnetGroupName:        aws.String(d.Get("name").(string)),
    56  		DBSubnetGroupDescription: aws.String(d.Get("description").(string)),
    57  		SubnetIDs:                subnetIds,
    58  	}
    59  
    60  	log.Printf("[DEBUG] Create DB Subnet Group: %#v", createOpts)
    61  	_, err := rdsconn.CreateDBSubnetGroup(&createOpts)
    62  	if err != nil {
    63  		return fmt.Errorf("Error creating DB Subnet Group: %s", err)
    64  	}
    65  
    66  	d.SetId(*createOpts.DBSubnetGroupName)
    67  	log.Printf("[INFO] DB Subnet Group ID: %s", d.Id())
    68  	return resourceAwsDbSubnetGroupRead(d, meta)
    69  }
    70  
    71  func resourceAwsDbSubnetGroupRead(d *schema.ResourceData, meta interface{}) error {
    72  	rdsconn := meta.(*AWSClient).rdsconn
    73  
    74  	describeOpts := rds.DescribeDBSubnetGroupsInput{
    75  		DBSubnetGroupName: aws.String(d.Id()),
    76  	}
    77  
    78  	describeResp, err := rdsconn.DescribeDBSubnetGroups(&describeOpts)
    79  	if err != nil {
    80  		if ec2err, ok := err.(aws.APIError); ok && ec2err.Code == "DBSubnetGroupNotFoundFault" {
    81  			// Update state to indicate the db subnet no longer exists.
    82  			d.SetId("")
    83  			return nil
    84  		}
    85  		return err
    86  	}
    87  
    88  	if len(describeResp.DBSubnetGroups) == 0 {
    89  		return fmt.Errorf("Unable to find DB Subnet Group: %#v", describeResp.DBSubnetGroups)
    90  	}
    91  
    92  	var subnetGroup *rds.DBSubnetGroup
    93  	for _, s := range describeResp.DBSubnetGroups {
    94  		// AWS is down casing the name provided, so we compare lower case versions
    95  		// of the names. We lower case both our name and their name in the check,
    96  		// incase they change that someday.
    97  		if strings.ToLower(d.Id()) == strings.ToLower(*s.DBSubnetGroupName) {
    98  			subnetGroup = describeResp.DBSubnetGroups[0]
    99  		}
   100  	}
   101  
   102  	if subnetGroup.DBSubnetGroupName == nil {
   103  		return fmt.Errorf("Unable to find DB Subnet Group: %#v", describeResp.DBSubnetGroups)
   104  	}
   105  
   106  	d.Set("name", d.Id())
   107  	d.Set("description", *subnetGroup.DBSubnetGroupDescription)
   108  
   109  	subnets := make([]string, 0, len(subnetGroup.Subnets))
   110  	for _, s := range subnetGroup.Subnets {
   111  		subnets = append(subnets, *s.SubnetIdentifier)
   112  	}
   113  	d.Set("subnet_ids", subnets)
   114  
   115  	return nil
   116  }
   117  
   118  func resourceAwsDbSubnetGroupDelete(d *schema.ResourceData, meta interface{}) error {
   119  	stateConf := &resource.StateChangeConf{
   120  		Pending:    []string{"pending"},
   121  		Target:     "destroyed",
   122  		Refresh:    resourceAwsDbSubnetGroupDeleteRefreshFunc(d, meta),
   123  		Timeout:    3 * time.Minute,
   124  		MinTimeout: 1 * time.Second,
   125  	}
   126  	_, err := stateConf.WaitForState()
   127  	return err
   128  }
   129  
   130  func resourceAwsDbSubnetGroupDeleteRefreshFunc(
   131  	d *schema.ResourceData,
   132  	meta interface{}) resource.StateRefreshFunc {
   133  	rdsconn := meta.(*AWSClient).rdsconn
   134  
   135  	return func() (interface{}, string, error) {
   136  
   137  		deleteOpts := rds.DeleteDBSubnetGroupInput{
   138  			DBSubnetGroupName: aws.String(d.Id()),
   139  		}
   140  
   141  		if _, err := rdsconn.DeleteDBSubnetGroup(&deleteOpts); err != nil {
   142  			rdserr, ok := err.(aws.APIError)
   143  			if !ok {
   144  				return d, "error", err
   145  			}
   146  
   147  			if rdserr.Code != "DBSubnetGroupNotFoundFault" {
   148  				return d, "error", err
   149  			}
   150  		}
   151  
   152  		return d, "destroyed", nil
   153  	}
   154  }