93 lines
2.3 KiB
Go
93 lines
2.3 KiB
Go
package aws
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import (
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"log"
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"github.com/aws/aws-sdk-go/aws"
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"github.com/aws/aws-sdk-go/service/cloudtrail"
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"github.com/hashicorp/terraform/helper/schema"
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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 "tags"
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func setTagsCloudtrail(conn *cloudtrail.CloudTrail, d *schema.ResourceData) error {
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if d.HasChange("tags") {
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oraw, nraw := d.GetChange("tags")
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o := oraw.(map[string]interface{})
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n := nraw.(map[string]interface{})
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create, remove := diffTagsCloudtrail(tagsFromMapCloudtrail(o), tagsFromMapCloudtrail(n))
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// Set tags
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if len(remove) > 0 {
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input := cloudtrail.RemoveTagsInput{
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ResourceId: aws.String(d.Get("arn").(string)),
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TagsList: remove,
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}
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log.Printf("[DEBUG] Removing CloudTrail tags: %s", input)
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_, err := conn.RemoveTags(&input)
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if err != nil {
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return err
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}
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}
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if len(create) > 0 {
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input := cloudtrail.AddTagsInput{
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ResourceId: aws.String(d.Get("arn").(string)),
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TagsList: create,
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}
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log.Printf("[DEBUG] Adding CloudTrail tags: %s", input)
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_, err := conn.AddTags(&input)
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if 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 diffTagsCloudtrail(oldTags, newTags []*cloudtrail.Tag) ([]*cloudtrail.Tag, []*cloudtrail.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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create[*t.Key] = *t.Value
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}
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// Build the list of what to remove
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var remove []*cloudtrail.Tag
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for _, t := range oldTags {
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old, ok := create[*t.Key]
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if !ok || old != *t.Value {
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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 tagsFromMapCloudtrail(create), remove
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}
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// tagsFromMap returns the tags for the given map of data.
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func tagsFromMapCloudtrail(m map[string]interface{}) []*cloudtrail.Tag {
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var result []*cloudtrail.Tag
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for k, v := range m {
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result = append(result, &cloudtrail.Tag{
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Key: aws.String(k),
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Value: aws.String(v.(string)),
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})
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}
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return result
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}
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// tagsToMap turns the list of tags into a map.
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func tagsToMapCloudtrail(ts []*cloudtrail.Tag) map[string]string {
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result := make(map[string]string)
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for _, t := range ts {
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result[*t.Key] = *t.Value
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}
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return result
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}
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