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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,117 @@ | ||
| package aws | ||
|
|
||
| import ( | ||
| "log" | ||
| "regexp" | ||
|
|
||
| "github.com/aws/aws-sdk-go/aws" | ||
| "github.com/aws/aws-sdk-go/service/ssm" | ||
| "github.com/hashicorp/terraform/helper/schema" | ||
| ) | ||
|
|
||
| // setTags is a helper to set the tags for a resource. It expects the | ||
| // tags field to be named "tags" | ||
| func setTagsSSM(conn *ssm.SSM, d *schema.ResourceData, id, resourceType string) error { | ||
| if d.HasChange("tags") { | ||
| oraw, nraw := d.GetChange("tags") | ||
| o := oraw.(map[string]interface{}) | ||
| n := nraw.(map[string]interface{}) | ||
| create, remove := diffTagsSSM(tagsFromMapSSM(o), tagsFromMapSSM(n)) | ||
|
|
||
| // Set tags | ||
| if len(remove) > 0 { | ||
| log.Printf("[DEBUG] Removing tags: %#v", remove) | ||
| k := make([]*string, len(remove), len(remove)) | ||
| for i, t := range remove { | ||
| k[i] = t.Key | ||
| } | ||
|
|
||
| _, err := conn.RemoveTagsFromResource(&ssm.RemoveTagsFromResourceInput{ | ||
| ResourceId: aws.String(id), | ||
| ResourceType: aws.String(resourceType), | ||
| TagKeys: k, | ||
| }) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
| if len(create) > 0 { | ||
| log.Printf("[DEBUG] Creating tags: %#v", create) | ||
| _, err := conn.AddTagsToResource(&ssm.AddTagsToResourceInput{ | ||
| ResourceId: aws.String(id), | ||
| ResourceType: aws.String(resourceType), | ||
| Tags: create, | ||
| }) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| // diffTags takes our tags locally and the ones remotely and returns | ||
| // the set of tags that must be created, and the set of tags that must | ||
| // be destroyed. | ||
| func diffTagsSSM(oldTags, newTags []*ssm.Tag) ([]*ssm.Tag, []*ssm.Tag) { | ||
| // First, we're creating everything we have | ||
| create := make(map[string]interface{}) | ||
| for _, t := range newTags { | ||
| create[*t.Key] = *t.Value | ||
| } | ||
|
|
||
| // Build the list of what to remove | ||
| var remove []*ssm.Tag | ||
| for _, t := range oldTags { | ||
| old, ok := create[*t.Key] | ||
| if !ok || old != *t.Value { | ||
| // Delete it! | ||
| remove = append(remove, t) | ||
| } | ||
| } | ||
|
|
||
| return tagsFromMapSSM(create), remove | ||
| } | ||
|
|
||
| // tagsFromMap returns the tags for the given map of data. | ||
| func tagsFromMapSSM(m map[string]interface{}) []*ssm.Tag { | ||
| result := make([]*ssm.Tag, 0, len(m)) | ||
| for k, v := range m { | ||
| t := &ssm.Tag{ | ||
| Key: aws.String(k), | ||
| Value: aws.String(v.(string)), | ||
| } | ||
| if !tagIgnoredSSM(t) { | ||
| result = append(result, t) | ||
| } | ||
| } | ||
|
|
||
| return result | ||
| } | ||
|
|
||
| // tagsToMap turns the list of tags into a map. | ||
| func tagsToMapSSM(ts []*ssm.Tag) map[string]string { | ||
| result := make(map[string]string) | ||
| for _, t := range ts { | ||
| if !tagIgnoredSSM(t) { | ||
| result[*t.Key] = *t.Value | ||
| } | ||
| } | ||
|
|
||
| return result | ||
| } | ||
|
|
||
| // compare a tag against a list of strings and checks if it should | ||
| // be ignored or not | ||
| func tagIgnoredSSM(t *ssm.Tag) bool { | ||
| filter := []string{"^aws:"} | ||
| for _, v := range filter { | ||
| log.Printf("[DEBUG] Matching %v with %v\n", v, *t.Key) | ||
| if r, _ := regexp.MatchString(v, *t.Key); r == true { | ||
| log.Printf("[DEBUG] Found AWS specific tag %s (val: %s), ignoring.\n", *t.Key, *t.Value) | ||
| return true | ||
| } | ||
| } | ||
| return false | ||
| } |
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