Fix renaming cloud metadata processor fields (#13808) (#18356)

Clone the underlying metadata to allow renaming sub-fields under cloud that are injected by the cloud metadata processor. (cherry picked from commit 6785901) Co-authored-by: Jameel Al-Aziz <247849+jalaziz@users.noreply.github.com>
elastic · May 8, 2020 · 0856169 · 0856169
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commit 0856169
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diff --git a/CHANGELOG.next.asciidoc b/CHANGELOG.next.asciidoc
@@ -39,6 +39,7 @@ https://github.com/elastic/beats/compare/v7.0.0-alpha2...master[Check the HEAD d
 *Affecting all Beats*
 
 - Fix bug with `monitoring.cluster_uuid` setting not always being exposed via GET /state Beats API. {issue}16732[16732] {pull}17420[17420]
+- Fix `add_cloud_metadata` to better support modifying sub-fields with other processors. {pull}13808[13808]
 
 *Auditbeat*
 

diff --git a/libbeat/processors/add_cloud_metadata/add_cloud_metadata.go b/libbeat/processors/add_cloud_metadata/add_cloud_metadata.go
@@ -97,7 +97,7 @@ func (p *addCloudMetadata) init() {
 
 func (p *addCloudMetadata) getMeta() common.MapStr {
 	p.init()
-	return p.metadata
+	return p.metadata.Clone()
 }
 
 func (p *addCloudMetadata) Run(event *beat.Event) (*beat.Event, error) {