terraform/builtin/providers/aws/resource_aws_efs_mount_targ...

299 lines
7.9 KiB
Go

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/ec2"
"github.com/aws/aws-sdk-go/service/efs"
"github.com/hashicorp/terraform/helper/resource"
"github.com/hashicorp/terraform/helper/schema"
)
func resourceAwsEfsMountTarget() *schema.Resource {
return &schema.Resource{
Create: resourceAwsEfsMountTargetCreate,
Read: resourceAwsEfsMountTargetRead,
Update: resourceAwsEfsMountTargetUpdate,
Delete: resourceAwsEfsMountTargetDelete,
Importer: &schema.ResourceImporter{
State: schema.ImportStatePassthrough,
},
Schema: map[string]*schema.Schema{
"file_system_id": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"ip_address": &schema.Schema{
Type: schema.TypeString,
Computed: true,
Optional: true,
ForceNew: true,
},
"security_groups": &schema.Schema{
Type: schema.TypeSet,
Elem: &schema.Schema{Type: schema.TypeString},
Set: schema.HashString,
Computed: true,
Optional: true,
},
"subnet_id": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"network_interface_id": &schema.Schema{
Type: schema.TypeString,
Computed: true,
},
"dns_name": &schema.Schema{
Type: schema.TypeString,
Computed: true,
},
},
}
}
func resourceAwsEfsMountTargetCreate(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).efsconn
fsId := d.Get("file_system_id").(string)
subnetId := d.Get("subnet_id").(string)
// CreateMountTarget would return the same Mount Target ID
// to parallel requests if they both include the same AZ
// and we would end up managing the same MT as 2 resources.
// So we make it fail by calling 1 request per AZ at a time.
az, err := getAzFromSubnetId(subnetId, meta.(*AWSClient).ec2conn)
if err != nil {
return fmt.Errorf("Failed getting Availability Zone from subnet ID (%s): %s", subnetId, err)
}
mtKey := "efs-mt-" + fsId + "-" + az
awsMutexKV.Lock(mtKey)
defer awsMutexKV.Unlock(mtKey)
input := efs.CreateMountTargetInput{
FileSystemId: aws.String(fsId),
SubnetId: aws.String(subnetId),
}
if v, ok := d.GetOk("ip_address"); ok {
input.IpAddress = aws.String(v.(string))
}
if v, ok := d.GetOk("security_groups"); ok {
input.SecurityGroups = expandStringList(v.(*schema.Set).List())
}
log.Printf("[DEBUG] Creating EFS mount target: %#v", input)
mt, err := conn.CreateMountTarget(&input)
if err != nil {
return err
}
d.SetId(*mt.MountTargetId)
log.Printf("[INFO] EFS mount target ID: %s", d.Id())
stateConf := &resource.StateChangeConf{
Pending: []string{"creating"},
Target: []string{"available"},
Refresh: func() (interface{}, string, error) {
resp, err := conn.DescribeMountTargets(&efs.DescribeMountTargetsInput{
MountTargetId: aws.String(d.Id()),
})
if err != nil {
return nil, "error", err
}
if hasEmptyMountTargets(resp) {
return nil, "error", fmt.Errorf("EFS mount target %q could not be found.", d.Id())
}
mt := resp.MountTargets[0]
log.Printf("[DEBUG] Current status of %q: %q", *mt.MountTargetId, *mt.LifeCycleState)
return mt, *mt.LifeCycleState, nil
},
Timeout: 10 * time.Minute,
Delay: 2 * time.Second,
MinTimeout: 3 * time.Second,
}
_, err = stateConf.WaitForState()
if err != nil {
return fmt.Errorf("Error waiting for EFS mount target (%s) to create: %s", d.Id(), err)
}
log.Printf("[DEBUG] EFS mount target created: %s", *mt.MountTargetId)
return resourceAwsEfsMountTargetRead(d, meta)
}
func resourceAwsEfsMountTargetUpdate(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).efsconn
if d.HasChange("security_groups") {
input := efs.ModifyMountTargetSecurityGroupsInput{
MountTargetId: aws.String(d.Id()),
SecurityGroups: expandStringList(d.Get("security_groups").(*schema.Set).List()),
}
_, err := conn.ModifyMountTargetSecurityGroups(&input)
if err != nil {
return err
}
}
return resourceAwsEfsMountTargetRead(d, meta)
}
func resourceAwsEfsMountTargetRead(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).efsconn
resp, err := conn.DescribeMountTargets(&efs.DescribeMountTargetsInput{
MountTargetId: aws.String(d.Id()),
})
if err != nil {
if ec2err, ok := err.(awserr.Error); ok && ec2err.Code() == "MountTargetNotFound" {
// The EFS mount target could not be found,
// which would indicate that it might be
// already deleted.
log.Printf("[WARN] EFS mount target %q could not be found.", d.Id())
d.SetId("")
return nil
}
return fmt.Errorf("Error reading EFS mount target %s: %s", d.Id(), err)
}
if hasEmptyMountTargets(resp) {
return fmt.Errorf("EFS mount target %q could not be found.", d.Id())
}
mt := resp.MountTargets[0]
log.Printf("[DEBUG] Found EFS mount target: %#v", mt)
d.SetId(*mt.MountTargetId)
d.Set("file_system_id", mt.FileSystemId)
d.Set("ip_address", mt.IpAddress)
d.Set("subnet_id", mt.SubnetId)
d.Set("network_interface_id", mt.NetworkInterfaceId)
sgResp, err := conn.DescribeMountTargetSecurityGroups(&efs.DescribeMountTargetSecurityGroupsInput{
MountTargetId: aws.String(d.Id()),
})
if err != nil {
return err
}
err = d.Set("security_groups", schema.NewSet(schema.HashString, flattenStringList(sgResp.SecurityGroups)))
if err != nil {
return err
}
// DNS name per http://docs.aws.amazon.com/efs/latest/ug/mounting-fs-mount-cmd-dns-name.html
az, err := getAzFromSubnetId(*mt.SubnetId, meta.(*AWSClient).ec2conn)
if err != nil {
return fmt.Errorf("Failed getting Availability Zone from subnet ID (%s): %s", *mt.SubnetId, err)
}
region := meta.(*AWSClient).region
err = d.Set("dns_name", resourceAwsEfsMountTargetDnsName(az, *mt.FileSystemId, region))
if err != nil {
return err
}
return nil
}
func getAzFromSubnetId(subnetId string, conn *ec2.EC2) (string, error) {
input := ec2.DescribeSubnetsInput{
SubnetIds: []*string{aws.String(subnetId)},
}
out, err := conn.DescribeSubnets(&input)
if err != nil {
return "", err
}
if l := len(out.Subnets); l != 1 {
return "", fmt.Errorf("Expected exactly 1 subnet returned for %q, got: %d", subnetId, l)
}
return *out.Subnets[0].AvailabilityZone, nil
}
func resourceAwsEfsMountTargetDelete(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).efsconn
log.Printf("[DEBUG] Deleting EFS mount target %q", d.Id())
_, err := conn.DeleteMountTarget(&efs.DeleteMountTargetInput{
MountTargetId: aws.String(d.Id()),
})
if err != nil {
return err
}
stateConf := &resource.StateChangeConf{
Pending: []string{"available", "deleting", "deleted"},
Target: []string{},
Refresh: func() (interface{}, string, error) {
resp, err := conn.DescribeMountTargets(&efs.DescribeMountTargetsInput{
MountTargetId: aws.String(d.Id()),
})
if err != nil {
awsErr, ok := err.(awserr.Error)
if !ok {
return nil, "error", err
}
if awsErr.Code() == "MountTargetNotFound" {
return nil, "", nil
}
return nil, "error", awsErr
}
if hasEmptyMountTargets(resp) {
return nil, "", nil
}
mt := resp.MountTargets[0]
log.Printf("[DEBUG] Current status of %q: %q", *mt.MountTargetId, *mt.LifeCycleState)
return mt, *mt.LifeCycleState, nil
},
Timeout: 10 * time.Minute,
Delay: 2 * time.Second,
MinTimeout: 3 * time.Second,
}
_, err = stateConf.WaitForState()
if err != nil {
return fmt.Errorf("Error waiting for EFS mount target (%q) to delete: %s",
d.Id(), err.Error())
}
log.Printf("[DEBUG] EFS mount target %q deleted.", d.Id())
return nil
}
func resourceAwsEfsMountTargetDnsName(az, fileSystemId, region string) string {
return fmt.Sprintf("%s.%s.efs.%s.amazonaws.com", az, fileSystemId, region)
}
func hasEmptyMountTargets(mto *efs.DescribeMountTargetsOutput) bool {
if mto != nil && len(mto.MountTargets) > 0 {
return false
}
return true
}