Cherry-pick to 7.0: Enable checks for jolokia documented fields (#10979)

CHANGELOG.next.asciidoc

@@ -77,8 +77,7 @@ https://github.com/elastic/beats/compare/v7.0.0-beta1...master[Check the HEAD di
 - Migrate docker autodiscover to ECS. {issue}10757[10757] {pull}10862[10862]
 - Fix issue in kubernetes module preventing usage percentages to be properly calculated. {pull}10946[10946]
 - Fix parsing error using GET in Jolokia module. {pull}11075[11075] {issue}11071[11071]
-- Collect metrics when EC2 instances are not in running state. {issue}11008[11008] {pull}11023[11023]
-- Change ECS field cloud.provider to aws. {pull}11023[11023]
+- Add documentation about jolokia autodiscover fields. {issue}10925[10925] {pull}10979[10979]
 
 *Packetbeat*
 

metricbeat/docs/fields.asciidoc

@@ -10796,6 +10796,76 @@ jolokia contains metrics exposed via jolokia agent
 
 
 
+*`jolokia.agent.version`*::
++
+--
+type: keyword
+
+Version number of jolokia agent.
+
+
+--
+
+*`jolokia.agent.id`*::
++
+--
+type: keyword
+
+Each agent has a unique id which can be either provided during startup of the agent in form of a configuration parameter or being autodetected. If autodected, the id has several parts: The IP, the process id, hashcode of the agent and its type.
+
+
+--
+
+*`jolokia.server.product`*::
++
+--
+type: keyword
+
+The container product if detected.
+
+
+--
+
+*`jolokia.server.version`*::
++
+--
+type: keyword
+
+The container's version (if detected).
+
+
+--
+
+*`jolokia.server.vendor`*::
++
+--
+type: keyword
+
+The vendor of the container the agent is running in.
+
+
+--
+
+*`jolokia.url`*::
++
+--
+type: keyword
+
+The URL how this agent can be contacted.
+
+
+--
+
+*`jolokia.secured`*::
++
+--
+type: boolean
+
+Whether the agent was configured for authentication or not.
+
+
+--
+
 [[exported-fields-kafka]]
 == Kafka fields
 

metricbeat/module/jolokia/_meta/fields.yml

@@ -11,3 +11,31 @@
       description: >
           jolokia contains metrics exposed via jolokia agent
       fields:
+        - name: agent.version
+          type: keyword
+          description: >
+            Version number of jolokia agent.
+        - name: agent.id
+          type: keyword
+          description: >
+            Each agent has a unique id which can be either provided during startup of the agent in form of a configuration parameter or being autodetected. If autodected, the id has several parts: The IP, the process id, hashcode of the agent and its type.
+        - name: server.product
+          type: keyword
+          description: >
+            The container product if detected.
+        - name: server.version
+          type: keyword
+          description: >
+            The container's version (if detected).
+        - name: server.vendor
+          type: keyword
+          description: >
+            The vendor of the container the agent is running in.
+        - name: url
+          type: keyword
+          description: >
+            The URL how this agent can be contacted.
+        - name: secured
+          type: boolean
+          description: >
+            Whether the agent was configured for authentication or not.

metricbeat/module/jolokia/jmx/_meta/fields.yml

@@ -1 +1,6 @@
-- release: ga
+- key: jmx
+  type: group
+  description: >
+    Jolokia jmx metricset
+  release: ga
+  fields:

metricbeat/tests/system/test_autodiscover_jolokia.py

@@ -52,3 +52,11 @@ def test_jolokia_jmx(self):
         print(evt)
 
         assert evt["jolokia"]["test"]["gc"]["collection_count"] >= 0
+
+        # Check Jolokia autodiscover metadata is added
+        assert evt['jolokia']['server']['product'] == 'tomcat'
+        assert evt['jolokia']['server']['vendor'] == 'Apache'
+
+        # Remove "test" fields because namespace specific fields are not documented
+        del(evt["jolokia"]["test"])
+        self.assert_fields_are_documented(output[0])