568 lines
15 KiB
Go
568 lines
15 KiB
Go
package aws
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import (
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"bytes"
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"crypto/sha1"
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"encoding/base64"
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"encoding/hex"
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"fmt"
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"log"
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"time"
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"github.com/aws/aws-sdk-go/aws"
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"github.com/aws/aws-sdk-go/aws/awserr"
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"github.com/aws/aws-sdk-go/service/autoscaling"
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"github.com/aws/aws-sdk-go/service/ec2"
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"github.com/hashicorp/terraform/helper/hashcode"
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"github.com/hashicorp/terraform/helper/resource"
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"github.com/hashicorp/terraform/helper/schema"
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)
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func resourceAwsLaunchConfiguration() *schema.Resource {
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return &schema.Resource{
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Create: resourceAwsLaunchConfigurationCreate,
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Read: resourceAwsLaunchConfigurationRead,
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Delete: resourceAwsLaunchConfigurationDelete,
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Schema: map[string]*schema.Schema{
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"name": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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Computed: true,
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ForceNew: true,
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ValidateFunc: func(v interface{}, k string) (ws []string, errors []error) {
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// https://github.com/boto/botocore/blob/9f322b1/botocore/data/autoscaling/2011-01-01/service-2.json#L1932-L1939
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value := v.(string)
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if len(value) > 255 {
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errors = append(errors, fmt.Errorf(
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"%q cannot be longer than 255 characters", k))
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}
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return
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},
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},
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"image_id": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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ForceNew: true,
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},
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"instance_type": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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ForceNew: true,
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},
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"iam_instance_profile": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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ForceNew: true,
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},
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"key_name": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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Computed: true,
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ForceNew: true,
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},
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"user_data": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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ForceNew: true,
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StateFunc: func(v interface{}) string {
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switch v.(type) {
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case string:
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hash := sha1.Sum([]byte(v.(string)))
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return hex.EncodeToString(hash[:])
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default:
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return ""
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}
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},
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},
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"security_groups": &schema.Schema{
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Type: schema.TypeSet,
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Optional: true,
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ForceNew: true,
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Elem: &schema.Schema{Type: schema.TypeString},
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Set: schema.HashString,
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},
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"associate_public_ip_address": &schema.Schema{
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Type: schema.TypeBool,
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Optional: true,
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ForceNew: true,
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Default: false,
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},
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"spot_price": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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ForceNew: true,
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},
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"ebs_optimized": &schema.Schema{
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Type: schema.TypeBool,
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Optional: true,
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ForceNew: true,
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Computed: true,
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},
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"placement_tenancy": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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ForceNew: true,
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},
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"enable_monitoring": &schema.Schema{
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Type: schema.TypeBool,
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Optional: true,
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ForceNew: true,
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Default: true,
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},
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"ebs_block_device": &schema.Schema{
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Type: schema.TypeSet,
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Optional: true,
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Computed: true,
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Elem: &schema.Resource{
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Schema: map[string]*schema.Schema{
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"delete_on_termination": &schema.Schema{
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Type: schema.TypeBool,
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Optional: true,
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Default: true,
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ForceNew: true,
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},
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"device_name": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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ForceNew: true,
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},
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"iops": &schema.Schema{
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Type: schema.TypeInt,
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Optional: true,
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Computed: true,
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ForceNew: true,
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},
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"snapshot_id": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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Computed: true,
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ForceNew: true,
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},
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"volume_size": &schema.Schema{
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Type: schema.TypeInt,
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Optional: true,
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Computed: true,
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ForceNew: true,
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},
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"volume_type": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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Computed: true,
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ForceNew: true,
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},
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},
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},
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Set: func(v interface{}) int {
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var buf bytes.Buffer
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m := v.(map[string]interface{})
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buf.WriteString(fmt.Sprintf("%s-", m["device_name"].(string)))
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buf.WriteString(fmt.Sprintf("%s-", m["snapshot_id"].(string)))
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return hashcode.String(buf.String())
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},
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},
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"ephemeral_block_device": &schema.Schema{
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Type: schema.TypeSet,
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Optional: true,
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ForceNew: true,
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Elem: &schema.Resource{
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Schema: map[string]*schema.Schema{
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"device_name": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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},
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"virtual_name": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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},
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},
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},
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Set: func(v interface{}) int {
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var buf bytes.Buffer
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m := v.(map[string]interface{})
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buf.WriteString(fmt.Sprintf("%s-", m["device_name"].(string)))
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buf.WriteString(fmt.Sprintf("%s-", m["virtual_name"].(string)))
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return hashcode.String(buf.String())
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},
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},
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"root_block_device": &schema.Schema{
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// TODO: This is a set because we don't support singleton
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// sub-resources today. We'll enforce that the set only ever has
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// length zero or one below. When TF gains support for
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// sub-resources this can be converted.
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Type: schema.TypeSet,
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Optional: true,
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Computed: true,
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Elem: &schema.Resource{
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// "You can only modify the volume size, volume type, and Delete on
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// Termination flag on the block device mapping entry for the root
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// device volume." - bit.ly/ec2bdmap
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Schema: map[string]*schema.Schema{
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"delete_on_termination": &schema.Schema{
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Type: schema.TypeBool,
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Optional: true,
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Default: true,
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ForceNew: true,
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},
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"iops": &schema.Schema{
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Type: schema.TypeInt,
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Optional: true,
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Computed: true,
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ForceNew: true,
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},
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"volume_size": &schema.Schema{
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Type: schema.TypeInt,
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Optional: true,
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Computed: true,
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ForceNew: true,
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},
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"volume_type": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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Computed: true,
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ForceNew: true,
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},
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},
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},
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Set: func(v interface{}) int {
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// there can be only one root device; no need to hash anything
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return 0
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},
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},
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},
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}
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}
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func resourceAwsLaunchConfigurationCreate(d *schema.ResourceData, meta interface{}) error {
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autoscalingconn := meta.(*AWSClient).autoscalingconn
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ec2conn := meta.(*AWSClient).ec2conn
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createLaunchConfigurationOpts := autoscaling.CreateLaunchConfigurationInput{
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LaunchConfigurationName: aws.String(d.Get("name").(string)),
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ImageId: aws.String(d.Get("image_id").(string)),
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InstanceType: aws.String(d.Get("instance_type").(string)),
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EbsOptimized: aws.Bool(d.Get("ebs_optimized").(bool)),
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}
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if v, ok := d.GetOk("user_data"); ok {
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userData := base64.StdEncoding.EncodeToString([]byte(v.(string)))
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createLaunchConfigurationOpts.UserData = aws.String(userData)
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}
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createLaunchConfigurationOpts.InstanceMonitoring = &autoscaling.InstanceMonitoring{
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Enabled: aws.Bool(d.Get("enable_monitoring").(bool)),
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}
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if v, ok := d.GetOk("iam_instance_profile"); ok {
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createLaunchConfigurationOpts.IamInstanceProfile = aws.String(v.(string))
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}
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if v, ok := d.GetOk("placement_tenancy"); ok {
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createLaunchConfigurationOpts.PlacementTenancy = aws.String(v.(string))
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}
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if v, ok := d.GetOk("associate_public_ip_address"); ok {
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createLaunchConfigurationOpts.AssociatePublicIpAddress = aws.Bool(v.(bool))
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}
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if v, ok := d.GetOk("key_name"); ok {
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createLaunchConfigurationOpts.KeyName = aws.String(v.(string))
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}
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if v, ok := d.GetOk("spot_price"); ok {
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createLaunchConfigurationOpts.SpotPrice = aws.String(v.(string))
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}
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if v, ok := d.GetOk("security_groups"); ok {
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createLaunchConfigurationOpts.SecurityGroups = expandStringList(
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v.(*schema.Set).List(),
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)
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}
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var blockDevices []*autoscaling.BlockDeviceMapping
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if v, ok := d.GetOk("ebs_block_device"); ok {
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vL := v.(*schema.Set).List()
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for _, v := range vL {
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bd := v.(map[string]interface{})
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ebs := &autoscaling.Ebs{
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DeleteOnTermination: aws.Bool(bd["delete_on_termination"].(bool)),
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}
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if v, ok := bd["snapshot_id"].(string); ok && v != "" {
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ebs.SnapshotId = aws.String(v)
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}
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if v, ok := bd["volume_size"].(int); ok && v != 0 {
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ebs.VolumeSize = aws.Int64(int64(v))
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}
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if v, ok := bd["volume_type"].(string); ok && v != "" {
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ebs.VolumeType = aws.String(v)
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}
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if v, ok := bd["iops"].(int); ok && v > 0 {
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ebs.Iops = aws.Int64(int64(v))
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}
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blockDevices = append(blockDevices, &autoscaling.BlockDeviceMapping{
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DeviceName: aws.String(bd["device_name"].(string)),
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Ebs: ebs,
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})
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}
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}
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if v, ok := d.GetOk("ephemeral_block_device"); ok {
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vL := v.(*schema.Set).List()
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for _, v := range vL {
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bd := v.(map[string]interface{})
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blockDevices = append(blockDevices, &autoscaling.BlockDeviceMapping{
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DeviceName: aws.String(bd["device_name"].(string)),
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VirtualName: aws.String(bd["virtual_name"].(string)),
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})
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}
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}
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if v, ok := d.GetOk("root_block_device"); ok {
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vL := v.(*schema.Set).List()
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if len(vL) > 1 {
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return fmt.Errorf("Cannot specify more than one root_block_device.")
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}
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for _, v := range vL {
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bd := v.(map[string]interface{})
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ebs := &autoscaling.Ebs{
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DeleteOnTermination: aws.Bool(bd["delete_on_termination"].(bool)),
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}
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if v, ok := bd["volume_size"].(int); ok && v != 0 {
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ebs.VolumeSize = aws.Int64(int64(v))
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}
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if v, ok := bd["volume_type"].(string); ok && v != "" {
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ebs.VolumeType = aws.String(v)
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}
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if v, ok := bd["iops"].(int); ok && v > 0 {
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ebs.Iops = aws.Int64(int64(v))
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}
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if dn, err := fetchRootDeviceName(d.Get("image_id").(string), ec2conn); err == nil {
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blockDevices = append(blockDevices, &autoscaling.BlockDeviceMapping{
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DeviceName: dn,
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Ebs: ebs,
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})
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} else {
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return err
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}
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}
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}
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if len(blockDevices) > 0 {
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createLaunchConfigurationOpts.BlockDeviceMappings = blockDevices
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}
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var lcName string
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if v, ok := d.GetOk("name"); ok {
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lcName = v.(string)
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} else {
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lcName = resource.UniqueId()
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}
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createLaunchConfigurationOpts.LaunchConfigurationName = aws.String(lcName)
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log.Printf(
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"[DEBUG] autoscaling create launch configuration: %s", createLaunchConfigurationOpts)
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// IAM profiles can take ~10 seconds to propagate in AWS:
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// http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/iam-roles-for-amazon-ec2.html#launch-instance-with-role-console
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err := resource.Retry(30*time.Second, func() error {
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_, err := autoscalingconn.CreateLaunchConfiguration(&createLaunchConfigurationOpts)
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if err != nil {
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if awsErr, ok := err.(awserr.Error); ok {
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if awsErr.Message() == "Invalid IamInstanceProfile" {
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return err
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}
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}
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return &resource.RetryError{
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Err: err,
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}
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}
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return nil
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})
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if err != nil {
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return fmt.Errorf("Error creating launch configuration: %s", err)
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}
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d.SetId(lcName)
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log.Printf("[INFO] launch configuration ID: %s", d.Id())
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// We put a Retry here since sometimes eventual consistency bites
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// us and we need to retry a few times to get the LC to load properly
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return resource.Retry(30*time.Second, func() error {
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return resourceAwsLaunchConfigurationRead(d, meta)
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})
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}
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func resourceAwsLaunchConfigurationRead(d *schema.ResourceData, meta interface{}) error {
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autoscalingconn := meta.(*AWSClient).autoscalingconn
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ec2conn := meta.(*AWSClient).ec2conn
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describeOpts := autoscaling.DescribeLaunchConfigurationsInput{
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LaunchConfigurationNames: []*string{aws.String(d.Id())},
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}
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log.Printf("[DEBUG] launch configuration describe configuration: %s", describeOpts)
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describConfs, err := autoscalingconn.DescribeLaunchConfigurations(&describeOpts)
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if err != nil {
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return fmt.Errorf("Error retrieving launch configuration: %s", err)
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}
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if len(describConfs.LaunchConfigurations) == 0 {
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d.SetId("")
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return nil
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}
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// Verify AWS returned our launch configuration
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if *describConfs.LaunchConfigurations[0].LaunchConfigurationName != d.Id() {
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return fmt.Errorf(
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"Unable to find launch configuration: %#v",
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describConfs.LaunchConfigurations)
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}
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lc := describConfs.LaunchConfigurations[0]
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d.Set("key_name", lc.KeyName)
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d.Set("image_id", lc.ImageId)
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d.Set("instance_type", lc.InstanceType)
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d.Set("name", lc.LaunchConfigurationName)
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d.Set("iam_instance_profile", lc.IamInstanceProfile)
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d.Set("ebs_optimized", lc.EbsOptimized)
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d.Set("spot_price", lc.SpotPrice)
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d.Set("enable_monitoring", lc.InstanceMonitoring.Enabled)
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d.Set("security_groups", lc.SecurityGroups)
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if err := readLCBlockDevices(d, lc, ec2conn); err != nil {
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return err
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}
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return nil
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}
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func resourceAwsLaunchConfigurationDelete(d *schema.ResourceData, meta interface{}) error {
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autoscalingconn := meta.(*AWSClient).autoscalingconn
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log.Printf("[DEBUG] Launch Configuration destroy: %v", d.Id())
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_, err := autoscalingconn.DeleteLaunchConfiguration(
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&autoscaling.DeleteLaunchConfigurationInput{
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LaunchConfigurationName: aws.String(d.Id()),
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})
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if err != nil {
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autoscalingerr, ok := err.(awserr.Error)
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if ok && (autoscalingerr.Code() == "InvalidConfiguration.NotFound" || autoscalingerr.Code() == "ValidationError") {
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log.Printf("[DEBUG] Launch configuration (%s) not found", d.Id())
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return nil
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}
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return err
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}
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return nil
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}
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func readLCBlockDevices(d *schema.ResourceData, lc *autoscaling.LaunchConfiguration, ec2conn *ec2.EC2) error {
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ibds, err := readBlockDevicesFromLaunchConfiguration(d, lc, ec2conn)
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if err != nil {
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return err
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}
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if err := d.Set("ebs_block_device", ibds["ebs"]); err != nil {
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return err
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}
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if err := d.Set("ephemeral_block_device", ibds["ephemeral"]); err != nil {
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return err
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}
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if ibds["root"] != nil {
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if err := d.Set("root_block_device", []interface{}{ibds["root"]}); err != nil {
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return err
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}
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} else {
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d.Set("root_block_device", []interface{}{})
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}
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return nil
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}
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func readBlockDevicesFromLaunchConfiguration(d *schema.ResourceData, lc *autoscaling.LaunchConfiguration, ec2conn *ec2.EC2) (
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map[string]interface{}, error) {
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blockDevices := make(map[string]interface{})
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blockDevices["ebs"] = make([]map[string]interface{}, 0)
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blockDevices["ephemeral"] = make([]map[string]interface{}, 0)
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blockDevices["root"] = nil
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if len(lc.BlockDeviceMappings) == 0 {
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return nil, nil
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}
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rootDeviceName, err := fetchRootDeviceName(d.Get("image_id").(string), ec2conn)
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if err != nil {
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return nil, err
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}
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if rootDeviceName == nil {
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// We do this so the value is empty so we don't have to do nil checks later
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var blank string
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rootDeviceName = &blank
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}
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for _, bdm := range lc.BlockDeviceMappings {
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bd := make(map[string]interface{})
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|
if bdm.Ebs != nil && bdm.Ebs.DeleteOnTermination != nil {
|
|
bd["delete_on_termination"] = *bdm.Ebs.DeleteOnTermination
|
|
}
|
|
if bdm.Ebs != nil && bdm.Ebs.VolumeSize != nil {
|
|
bd["volume_size"] = *bdm.Ebs.VolumeSize
|
|
}
|
|
if bdm.Ebs != nil && bdm.Ebs.VolumeType != nil {
|
|
bd["volume_type"] = *bdm.Ebs.VolumeType
|
|
}
|
|
if bdm.Ebs != nil && bdm.Ebs.Iops != nil {
|
|
bd["iops"] = *bdm.Ebs.Iops
|
|
}
|
|
if bdm.DeviceName != nil && *bdm.DeviceName == *rootDeviceName {
|
|
blockDevices["root"] = bd
|
|
} else {
|
|
if bdm.DeviceName != nil {
|
|
bd["device_name"] = *bdm.DeviceName
|
|
}
|
|
if bdm.VirtualName != nil {
|
|
bd["virtual_name"] = *bdm.VirtualName
|
|
blockDevices["ephemeral"] = append(blockDevices["ephemeral"].([]map[string]interface{}), bd)
|
|
} else {
|
|
if bdm.Ebs != nil && bdm.Ebs.SnapshotId != nil {
|
|
bd["snapshot_id"] = *bdm.Ebs.SnapshotId
|
|
}
|
|
blockDevices["ebs"] = append(blockDevices["ebs"].([]map[string]interface{}), bd)
|
|
}
|
|
}
|
|
}
|
|
return blockDevices, nil
|
|
}
|