Add test case for add_kubernetes_metadata with autodiscover

e2e/_suites/kubernetes-autodiscover/autodiscover_test.go

@@ -615,6 +615,9 @@ func InitializeScenario(ctx *godog.ScenarioContext) {
 	ctx.Step(`^"([^"]*)" is ([a-z]*) with "([^"]*)"$`, func(name, state, option string) error {
 		return pods.resourceIs(name, state, option)
 	})
+	ctx.Step(`^"([^"]*)" is ([a-z]*) with "([^"]*)" and "([^"]*)"$`, func(name, state, option1, option2 string) error {
+		return pods.resourceIs(name, state, option1, option2)
+	})
 
 	ctx.Step(`^"([^"]*)" collects events with "([^"]*:[^"]*)"$`, pods.collectsEventsWith)
 	ctx.Step(`^"([^"]*)" does not collect events with "([^"]*)" during "([^"]*)"$`, pods.doesNotCollectEvents)

e2e/_suites/kubernetes-autodiscover/features/filebeat.feature

@@ -36,9 +36,16 @@ Scenario: Logs collection from a pod with an ephemeral container
    When an ephemeral container is started in "a pod"
    Then "filebeat" collects events with "kubernetes.container.name:ephemeral-container"
 
+# Running autodiscover with add_kubernetes_metadata is not recommended because both
+# features add the same metadata, but there is nothing preventing this config.
+Scenario: Logs collection from running pod and metadata enrichment using add_kubernetes_metadata
+  Given "filebeat" is running with "hints enabled" and "add_kubernetes_metadata"
+   When "a pod" is deployed
+   Then "filebeat" collects events with "kubernetes.pod.name:a-pod"
+
 # Not really autodiscover, but this is a frequent use case in autodiscover-like
 # scenarios for logs collection.
 Scenario: Enrichment of normal input using add_kubernetes_metadata
-  Given "filebeat" is running with "input and add_kubernetes_metadata"
+  Given "filebeat" is running with "input with add_kubernetes_metadata"
    When "a pod" is deployed
    Then "filebeat" collects events with "kubernetes.pod.name:a-pod"

e2e/_suites/kubernetes-autodiscover/testdata/templates/filebeat.yml.tmpl

@@ -7,7 +7,7 @@ metadata:
     k8s-app: filebeat
 data:
   filebeat.yml: |-
-{{ if option "input and add_kubernetes_metadata" }}
+{{ if option "input with add_kubernetes_metadata" }}
     filebeat.inputs:
     - type: container
       paths:
@@ -31,6 +31,14 @@ data:
             paths:
               - /var/log/containers/*${data.kubernetes.container.id}.log
 {{ end }}
+{{ end }}
+{{ if option "add_kubernetes_metadata" }}
+    processors:
+      - add_kubernetes_metadata:
+          host: ${NODE_NAME}
+          matchers:
+          - logs_path:
+              logs_path: "/var/log/containers/"
 {{ end }}
 
     output.file: