terraform/builtin/providers/aws/resource_aws_ecs_task_defin...

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package aws
import (
"bytes"
"crypto/sha1"
"encoding/hex"
"fmt"
"log"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/service/ecs"
"github.com/hashicorp/terraform/helper/hashcode"
"github.com/hashicorp/terraform/helper/schema"
)
func resourceAwsEcsTaskDefinition() *schema.Resource {
return &schema.Resource{
Create: resourceAwsEcsTaskDefinitionCreate,
Read: resourceAwsEcsTaskDefinitionRead,
Update: resourceAwsEcsTaskDefinitionUpdate,
Delete: resourceAwsEcsTaskDefinitionDelete,
Schema: map[string]*schema.Schema{
"arn": &schema.Schema{
Type: schema.TypeString,
Computed: true,
},
"family": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"revision": &schema.Schema{
Type: schema.TypeInt,
Computed: true,
},
"container_definitions": &schema.Schema{
Type: schema.TypeString,
Required: true,
StateFunc: func(v interface{}) string {
hash := sha1.Sum([]byte(v.(string)))
return hex.EncodeToString(hash[:])
},
},
"volume": &schema.Schema{
Type: schema.TypeSet,
Optional: true,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"name": &schema.Schema{
Type: schema.TypeString,
Required: true,
},
"host_path": &schema.Schema{
Type: schema.TypeString,
Required: true,
},
},
},
Set: resourceAwsEcsTaskDefinitionVolumeHash,
},
},
}
}
func resourceAwsEcsTaskDefinitionCreate(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).ecsconn
rawDefinitions := d.Get("container_definitions").(string)
definitions, err := expandEcsContainerDefinitions(rawDefinitions)
if err != nil {
return err
}
input := ecs.RegisterTaskDefinitionInput{
ContainerDefinitions: definitions,
Family: aws.String(d.Get("family").(string)),
}
if v, ok := d.GetOk("volume"); ok {
volumes, err := expandEcsVolumes(v.(*schema.Set).List())
if err != nil {
return err
}
input.Volumes = volumes
}
log.Printf("[DEBUG] Registering ECS task definition: %#v", input)
out, err := conn.RegisterTaskDefinition(&input)
if err != nil {
return err
}
taskDefinition := *out.TaskDefinition
log.Printf("[DEBUG] ECS task definition registered: %#v (rev. %d)",
*taskDefinition.TaskDefinitionARN, *taskDefinition.Revision)
d.SetId(*taskDefinition.Family)
d.Set("arn", *taskDefinition.TaskDefinitionARN)
return resourceAwsEcsTaskDefinitionRead(d, meta)
}
func resourceAwsEcsTaskDefinitionRead(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).ecsconn
log.Printf("[DEBUG] Reading task definition %s", d.Id())
out, err := conn.DescribeTaskDefinition(&ecs.DescribeTaskDefinitionInput{
TaskDefinition: aws.String(d.Get("arn").(string)),
})
if err != nil {
return err
}
log.Printf("[DEBUG] Received task definition %#v", out)
taskDefinition := out.TaskDefinition
d.SetId(*taskDefinition.Family)
d.Set("arn", *taskDefinition.TaskDefinitionARN)
d.Set("family", *taskDefinition.Family)
d.Set("revision", *taskDefinition.Revision)
d.Set("container_definitions", taskDefinition.ContainerDefinitions)
d.Set("volumes", flattenEcsVolumes(taskDefinition.Volumes))
return nil
}
func resourceAwsEcsTaskDefinitionUpdate(d *schema.ResourceData, meta interface{}) error {
oldArn := d.Get("arn").(string)
log.Printf("[DEBUG] Creating new revision of task definition %q", d.Id())
err := resourceAwsEcsTaskDefinitionCreate(d, meta)
if err != nil {
return err
}
log.Printf("[DEBUG] New revision of %q created: %q", d.Id(), d.Get("arn").(string))
log.Printf("[DEBUG] Deregistering old revision of task definition %q: %q", d.Id(), oldArn)
conn := meta.(*AWSClient).ecsconn
_, err = conn.DeregisterTaskDefinition(&ecs.DeregisterTaskDefinitionInput{
TaskDefinition: aws.String(oldArn),
})
if err != nil {
return err
}
log.Printf("[DEBUG] Old revision of task definition deregistered: %q", oldArn)
return resourceAwsEcsTaskDefinitionRead(d, meta)
}
func resourceAwsEcsTaskDefinitionDelete(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).ecsconn
_, err := conn.DeregisterTaskDefinition(&ecs.DeregisterTaskDefinitionInput{
TaskDefinition: aws.String(d.Get("arn").(string)),
})
if err != nil {
return err
}
log.Printf("[DEBUG] Task definition %q deregistered.", d.Get("arn").(string))
return nil
}
func resourceAwsEcsTaskDefinitionVolumeHash(v interface{}) int {
var buf bytes.Buffer
m := v.(map[string]interface{})
buf.WriteString(fmt.Sprintf("%s-", m["name"].(string)))
buf.WriteString(fmt.Sprintf("%s-", m["host_path"].(string)))
return hashcode.String(buf.String())
}