mirror of https://github.com/hashicorp/terraform
Radek Simko
11 years ago
parent
19c7f8cff4
commit
fff05e2aad
@ -0,0 +1,170 @@
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package aws
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import (
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"bytes"
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"fmt"
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"log"
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"github.com/hashicorp/aws-sdk-go/aws"
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"github.com/hashicorp/aws-sdk-go/gen/autoscaling"
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"github.com/hashicorp/terraform/helper/hashcode"
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"github.com/hashicorp/terraform/helper/schema"
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)
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// tagsSchema returns the schema to use for tags.
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func autoscalingTagsSchema() *schema.Schema {
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return &schema.Schema{
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Type: schema.TypeSet,
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Optional: true,
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Elem: &schema.Resource{
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Schema: map[string]*schema.Schema{
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"key": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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},
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"value": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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},
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"propagate_at_launch": &schema.Schema{
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Type: schema.TypeBool,
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Required: true,
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},
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},
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},
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Set: autoscalingTagsToHash,
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}
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}
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func autoscalingTagsToHash(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["key"].(string)))
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buf.WriteString(fmt.Sprintf("%s-", m["value"].(string)))
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buf.WriteString(fmt.Sprintf("%t-", m["propagate_at_launch"].(bool)))
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return hashcode.String(buf.String())
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}
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// setTags is a helper to set the tags for a resource. It expects the
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// tags field to be named "tag"
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func setAutoscalingTags(conn *autoscaling.AutoScaling, d *schema.ResourceData) error {
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if d.HasChange("tag") {
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oraw, nraw := d.GetChange("tag")
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o := setToMapByKey(oraw.(*schema.Set), "key")
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n := setToMapByKey(nraw.(*schema.Set), "key")
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resourceID := d.Get("name").(string)
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c, r := diffAutoscalingTags(
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autoscalingTagsFromMap(o, resourceID),
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autoscalingTagsFromMap(n, resourceID),
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resourceID)
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create := autoscaling.CreateOrUpdateTagsType{
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Tags: c,
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}
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remove := autoscaling.DeleteTagsType{
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Tags: r,
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}
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// Set tags
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if len(r) > 0 {
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log.Printf("[DEBUG] Removing autoscaling tags: %#v", r)
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if err := conn.DeleteTags(&remove); err != nil {
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return err
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}
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}
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if len(c) > 0 {
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log.Printf("[DEBUG] Creating autoscaling tags: %#v", c)
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if err := conn.CreateOrUpdateTags(&create); err != nil {
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return err
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}
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}
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}
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return nil
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}
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// diffTags takes our tags locally and the ones remotely and returns
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// the set of tags that must be created, and the set of tags that must
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// be destroyed.
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func diffAutoscalingTags(oldTags, newTags []autoscaling.Tag, resourceID string) ([]autoscaling.Tag, []autoscaling.Tag) {
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// First, we're creating everything we have
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create := make(map[string]interface{})
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for _, t := range newTags {
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tag := map[string]interface{}{
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"value": *t.Value,
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"propagate_at_launch": *t.PropagateAtLaunch,
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}
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create[*t.Key] = tag
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}
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// Build the list of what to remove
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var remove []autoscaling.Tag
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for _, t := range oldTags {
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old, ok := create[*t.Key].(map[string]interface{})
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if !ok || old["value"] != *t.Value || old["propagate_at_launch"] != *t.PropagateAtLaunch {
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// Delete it!
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remove = append(remove, t)
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}
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}
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return autoscalingTagsFromMap(create, resourceID), remove
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}
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// tagsFromMap returns the tags for the given map of data.
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func autoscalingTagsFromMap(m map[string]interface{}, resourceID string) []autoscaling.Tag {
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result := make([]autoscaling.Tag, 0, len(m))
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for k, v := range m {
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attr := v.(map[string]interface{})
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result = append(result, autoscaling.Tag{
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Key: aws.String(k),
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Value: aws.String(attr["value"].(string)),
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PropagateAtLaunch: aws.Boolean(attr["propagate_at_launch"].(bool)),
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ResourceID: aws.String(resourceID),
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ResourceType: aws.String("auto-scaling-group"),
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})
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}
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return result
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}
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// autoscalingTagsToMap turns the list of tags into a map.
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func autoscalingTagsToMap(ts []autoscaling.Tag) map[string]interface{} {
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tags := make(map[string]interface{})
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for _, t := range ts {
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tag := map[string]interface{}{
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"value": *t.Value,
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"propagate_at_launch": *t.PropagateAtLaunch,
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}
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tags[*t.Key] = tag
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}
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return tags
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}
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// autoscalingTagDescriptionsToMap turns the list of tags into a map.
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func autoscalingTagDescriptionsToMap(ts []autoscaling.TagDescription) map[string]map[string]interface{} {
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tags := make(map[string]map[string]interface{})
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for _, t := range ts {
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tag := map[string]interface{}{
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"value": t.Value,
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"propagate_at_launch": t.PropagateAtLaunch,
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}
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tags[*t.Key] = tag
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}
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return tags
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}
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func setToMapByKey(s *schema.Set, key string) map[string]interface{} {
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result := make(map[string]interface{})
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for _, rawData := range s.List() {
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data := rawData.(map[string]interface{})
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result[data[key].(string)] = data
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}
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return result
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}
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@ -0,0 +1,122 @@
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package aws
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import (
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"fmt"
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"reflect"
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"testing"
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"github.com/hashicorp/aws-sdk-go/gen/autoscaling"
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"github.com/hashicorp/terraform/helper/resource"
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"github.com/hashicorp/terraform/terraform"
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)
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func TestDiffAutoscalingTags(t *testing.T) {
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cases := []struct {
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Old, New map[string]interface{}
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Create, Remove map[string]interface{}
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}{
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// Basic add/remove
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{
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Old: map[string]interface{}{
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"Name": map[string]interface{}{
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"value": "bar",
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"propagate_at_launch": true,
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},
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},
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New: map[string]interface{}{
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"DifferentTag": map[string]interface{}{
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"value": "baz",
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"propagate_at_launch": true,
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},
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},
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Create: map[string]interface{}{
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"DifferentTag": map[string]interface{}{
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"value": "baz",
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"propagate_at_launch": true,
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},
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},
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Remove: map[string]interface{}{
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"Name": map[string]interface{}{
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"value": "bar",
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"propagate_at_launch": true,
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},
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},
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},
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// Modify
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{
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Old: map[string]interface{}{
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"Name": map[string]interface{}{
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"value": "bar",
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"propagate_at_launch": true,
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},
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},
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New: map[string]interface{}{
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"Name": map[string]interface{}{
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"value": "baz",
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"propagate_at_launch": false,
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},
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},
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Create: map[string]interface{}{
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"Name": map[string]interface{}{
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"value": "baz",
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"propagate_at_launch": false,
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},
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},
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Remove: map[string]interface{}{
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"Name": map[string]interface{}{
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"value": "bar",
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"propagate_at_launch": true,
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},
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},
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},
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}
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var resourceID = "sample"
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for i, tc := range cases {
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awsTagsOld := autoscalingTagsFromMap(tc.Old, resourceID)
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awsTagsNew := autoscalingTagsFromMap(tc.New, resourceID)
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c, r := diffAutoscalingTags(awsTagsOld, awsTagsNew, resourceID)
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cm := autoscalingTagsToMap(c)
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rm := autoscalingTagsToMap(r)
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if !reflect.DeepEqual(cm, tc.Create) {
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t.Fatalf("%d: bad create: \n%#v\n%#v", i, cm, tc.Create)
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}
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if !reflect.DeepEqual(rm, tc.Remove) {
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t.Fatalf("%d: bad remove: \n%#v\n%#v", i, rm, tc.Remove)
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}
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}
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}
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// testAccCheckTags can be used to check the tags on a resource.
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func testAccCheckAutoscalingTags(
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ts *[]autoscaling.TagDescription, key string, expected map[string]interface{}) resource.TestCheckFunc {
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return func(s *terraform.State) error {
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m := autoscalingTagDescriptionsToMap(*ts)
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v, ok := m[key]
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if !ok {
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return fmt.Errorf("Missing tag: %s", key)
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}
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if v["value"] != expected["value"].(string) ||
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v["propagate_at_launch"] != expected["propagate_at_launch"].(bool) {
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return fmt.Errorf("%s: bad value: %s", key, v)
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}
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return nil
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}
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}
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func testAccCheckAutoscalingTagNotExists(ts *[]autoscaling.TagDescription, key string) resource.TestCheckFunc {
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return func(s *terraform.State) error {
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m := autoscalingTagDescriptionsToMap(*ts)
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if _, ok := m[key]; ok {
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return fmt.Errorf("Tag exists when it should not: %s", key)
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}
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return nil
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}
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}
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