aws: Add support for aws_app_cookie_stickiness_policy.

This resource represents a session stickiness policy in AWS, and can be
applied to an ELB's client-facing listeners.
This commit is contained in:
Christopher Tiwald 2015-04-26 17:57:46 -04:00
parent 30f8fd738a
commit 0533d60195
2 changed files with 157 additions and 0 deletions

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@ -76,6 +76,7 @@ func Provider() terraform.ResourceProvider {
ResourcesMap: map[string]*schema.Resource{
"aws_autoscaling_group": resourceAwsAutoscalingGroup(),
"aws_app_cookie_stickiness_policy": resourceAwsAppCookieStickinessPolicy(),
"aws_db_instance": resourceAwsDbInstance(),
"aws_db_parameter_group": resourceAwsDbParameterGroup(),
"aws_db_security_group": resourceAwsDbSecurityGroup(),

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@ -0,0 +1,156 @@
package aws
import (
"fmt"
"strings"
"github.com/awslabs/aws-sdk-go/aws"
"github.com/awslabs/aws-sdk-go/service/elb"
"github.com/hashicorp/terraform/helper/schema"
)
func resourceAwsAppCookieStickinessPolicy() *schema.Resource {
return &schema.Resource{
// There is no concept of "updating" an App Stickiness policy in
// the AWS API.
Create: resourceAwsAppCookieStickinessPolicyCreate,
Update: resourceAwsAppCookieStickinessPolicyCreate,
Read: resourceAwsAppCookieStickinessPolicyRead,
Delete: resourceAwsAppCookieStickinessPolicyDelete,
Schema: map[string]*schema.Schema{
"name": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"load_balancer": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"lb_port": &schema.Schema{
Type: schema.TypeInt,
Required: true,
ForceNew: true,
},
"cookie_name": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
},
}
}
func resourceAwsAppCookieStickinessPolicyCreate(d *schema.ResourceData, meta interface{}) error {
elbconn := meta.(*AWSClient).elbconn
// Provision the AppStickinessPolicy
acspOpts := &elb.CreateAppCookieStickinessPolicyInput{
CookieName: aws.String(d.Get("cookie_name").(string)),
LoadBalancerName: aws.String(d.Get("load_balancer").(string)),
PolicyName: aws.String(d.Get("name").(string)),
}
if _, err := elbconn.CreateAppCookieStickinessPolicy(acspOpts); err != nil {
return fmt.Errorf("Error creating AppCookieStickinessPolicy: %s", err)
}
setLoadBalancerOpts := &elb.SetLoadBalancerPoliciesOfListenerInput{
LoadBalancerName: aws.String(d.Get("load_balancer").(string)),
LoadBalancerPort: aws.Long(int64(d.Get("lb_port").(int))),
PolicyNames: []*string{aws.String(d.Get("name").(string))},
}
if _, err := elbconn.SetLoadBalancerPoliciesOfListener(setLoadBalancerOpts); err != nil {
return fmt.Errorf("Error setting AppCookieStickinessPolicy: %s", err)
}
d.SetId(fmt.Sprintf("%s:%d:%s",
*acspOpts.LoadBalancerName,
*setLoadBalancerOpts.LoadBalancerPort,
*acspOpts.PolicyName))
return nil
}
func resourceAwsAppCookieStickinessPolicyRead(d *schema.ResourceData, meta interface{}) error {
elbconn := meta.(*AWSClient).elbconn
lbName, lbPort, policyName := resourceAwsAppCookieStickinessPolicyParseId(d.Id())
request := &elb.DescribeLoadBalancerPoliciesInput{
LoadBalancerName: aws.String(lbName),
PolicyNames: []*string{aws.String(policyName)},
}
getResp, err := elbconn.DescribeLoadBalancerPolicies(request)
if err != nil {
if ec2err, ok := err.(aws.APIError); ok && ec2err.Code == "PolicyNotFound" {
// The policy is gone.
d.SetId("")
return nil
}
return fmt.Errorf("Error retrieving policy: %s", err)
}
if len(getResp.PolicyDescriptions) != 1 {
return fmt.Errorf("Unable to find policy %#v", getResp.PolicyDescriptions)
}
// We can get away with this because there's only one attribute, the
// cookie expiration, in these descriptions.
policyDesc := getResp.PolicyDescriptions[0]
cookieAttr := policyDesc.PolicyAttributeDescriptions[0]
if *cookieAttr.AttributeName != "CookieName" {
return fmt.Errorf("Unable to find cookie Name.")
}
d.Set("cookie_name", cookieAttr.AttributeValue)
d.Set("name", policyName)
d.Set("load_balancer", lbName)
d.Set("lb_port", lbPort)
return nil
}
func resourceAwsAppCookieStickinessPolicyDelete(d *schema.ResourceData, meta interface{}) error {
elbconn := meta.(*AWSClient).elbconn
lbName, _, policyName := resourceAwsAppCookieStickinessPolicyParseId(d.Id())
// Perversely, if we Set an empty list of PolicyNames, we detach the
// policies attached to a listener, which is required to delete the
// policy itself.
setLoadBalancerOpts := &elb.SetLoadBalancerPoliciesOfListenerInput{
LoadBalancerName: aws.String(d.Get("load_balancer").(string)),
LoadBalancerPort: aws.Long(int64(d.Get("lb_port").(int))),
PolicyNames: []*string{},
}
if _, err := elbconn.SetLoadBalancerPoliciesOfListener(setLoadBalancerOpts); err != nil {
return fmt.Errorf("Error removing AppCookieStickinessPolicy: %s", err)
}
request := &elb.DeleteLoadBalancerPolicyInput{
LoadBalancerName: aws.String(lbName),
PolicyName: aws.String(policyName),
}
if _, err := elbconn.DeleteLoadBalancerPolicy(request); err != nil {
return fmt.Errorf("Error deleting App stickiness policy %s: %s", d.Id(), err)
}
return nil
}
// resourceAwsAppCookieStickinessPolicyParseId takes an ID and parses it into
// it's constituent parts. You need three axes (LB name, policy name, and LB
// port) to create or identify a stickiness policy in AWS's API.
func resourceAwsAppCookieStickinessPolicyParseId(id string) (string, string, string) {
parts := strings.SplitN(id, ":", 3)
return parts[0], parts[1], parts[2]
}