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resource_aws_launch_configuration.go
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resource_aws_launch_configuration.go
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package aws
import (
"crypto/sha1"
"encoding/hex"
"fmt"
"log"
"time"
"github.com/hashicorp/terraform/helper/hashcode"
"github.com/hashicorp/terraform/helper/resource"
"github.com/hashicorp/terraform/helper/schema"
"github.com/mitchellh/goamz/autoscaling"
)
func resourceAwsLaunchConfiguration() *schema.Resource {
return &schema.Resource{
Create: resourceAwsLaunchConfigurationCreate,
Read: resourceAwsLaunchConfigurationRead,
Delete: resourceAwsLaunchConfigurationDelete,
Schema: map[string]*schema.Schema{
"name": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"image_id": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"instance_type": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"iam_instance_profile": &schema.Schema{
Type: schema.TypeString,
Optional: true,
ForceNew: true,
},
"key_name": &schema.Schema{
Type: schema.TypeString,
Optional: true,
Computed: true,
ForceNew: true,
},
"user_data": &schema.Schema{
Type: schema.TypeString,
Optional: true,
ForceNew: true,
StateFunc: func(v interface{}) string {
switch v.(type) {
case string:
hash := sha1.Sum([]byte(v.(string)))
return hex.EncodeToString(hash[:])
default:
return ""
}
},
},
"security_groups": &schema.Schema{
Type: schema.TypeSet,
Optional: true,
ForceNew: true,
Elem: &schema.Schema{Type: schema.TypeString},
Set: func(v interface{}) int {
return hashcode.String(v.(string))
},
},
},
}
}
func resourceAwsLaunchConfigurationCreate(d *schema.ResourceData, meta interface{}) error {
p := meta.(*ResourceProvider)
autoscalingconn := p.autoscalingconn
var createLaunchConfigurationOpts autoscaling.CreateLaunchConfiguration
createLaunchConfigurationOpts.Name = d.Get("name").(string)
createLaunchConfigurationOpts.IamInstanceProfile = d.Get("iam_instance_profile").(string)
createLaunchConfigurationOpts.ImageId = d.Get("image_id").(string)
createLaunchConfigurationOpts.InstanceType = d.Get("instance_type").(string)
createLaunchConfigurationOpts.KeyName = d.Get("key_name").(string)
createLaunchConfigurationOpts.UserData = d.Get("user_data").(string)
if v, ok := d.GetOk("security_groups"); ok {
createLaunchConfigurationOpts.SecurityGroups = expandStringList(
v.(*schema.Set).List())
}
log.Printf("[DEBUG] autoscaling create launch configuration: %#v", createLaunchConfigurationOpts)
_, err := autoscalingconn.CreateLaunchConfiguration(&createLaunchConfigurationOpts)
if err != nil {
return fmt.Errorf("Error creating launch configuration: %s", err)
}
d.SetId(d.Get("name").(string))
log.Printf("[INFO] launch configuration ID: %s", d.Id())
// We put a Retry here since sometimes eventual consistency bites
// us and we need to retry a few times to get the LC to load properly
return resource.Retry(30*time.Second, func() error {
return resourceAwsLaunchConfigurationRead(d, meta)
})
}
func resourceAwsLaunchConfigurationDelete(d *schema.ResourceData, meta interface{}) error {
p := meta.(*ResourceProvider)
autoscalingconn := p.autoscalingconn
log.Printf("[DEBUG] Launch Configuration destroy: %v", d.Id())
_, err := autoscalingconn.DeleteLaunchConfiguration(
&autoscaling.DeleteLaunchConfiguration{Name: d.Id()})
if err != nil {
autoscalingerr, ok := err.(*autoscaling.Error)
if ok && autoscalingerr.Code == "InvalidConfiguration.NotFound" {
return nil
}
return err
}
return nil
}
func resourceAwsLaunchConfigurationRead(d *schema.ResourceData, meta interface{}) error {
p := meta.(*ResourceProvider)
autoscalingconn := p.autoscalingconn
describeOpts := autoscaling.DescribeLaunchConfigurations{
Names: []string{d.Id()},
}
log.Printf("[DEBUG] launch configuration describe configuration: %#v", describeOpts)
describConfs, err := autoscalingconn.DescribeLaunchConfigurations(&describeOpts)
if err != nil {
return fmt.Errorf("Error retrieving launch configuration: %s", err)
}
// Verify AWS returned our launch configuration
if len(describConfs.LaunchConfigurations) != 1 ||
describConfs.LaunchConfigurations[0].Name != d.Id() {
if err != nil {
return fmt.Errorf(
"Unable to find launch configuration: %#v",
describConfs.LaunchConfigurations)
}
}
lc := describConfs.LaunchConfigurations[0]
d.Set("key_name", lc.KeyName)
d.Set("iam_instance_profile", lc.IamInstanceProfile)
d.Set("image_id", lc.ImageId)
d.Set("instance_type", lc.InstanceType)
d.Set("name", lc.Name)
if v := lc.SecurityGroups; len(v) > 0 && v[0].SecurityGroup != "" {
d.Set("security_groups", flattenAutoscalingSecurityGroups(v))
}
return nil
}