[logstash] Add Statefulset Annotations through values.yaml

logstash/README.md

@@ -113,6 +113,7 @@ useful for the [http input plugin][], for instance.
 
 | Parameter                 | Description                                                                                                                                                                                                                          | Default                               |
 |---------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------|
+| `annotations`             | Configurable [annotations][] applied to the Elasticsearch Statefulset                                                                                                                                                                | `{}`                                  |
 | `antiAffinityTopologyKey` | The [anti-affinity][] topology key]. By default this will prevent multiple Logstash nodes from running on the same Kubernetes node                                                                                                   | `kubernetes.io/hostname`              |
 | `antiAffinity`            | Setting this to hard enforces the [anti-affinity][] rules. If it is set to soft it will be done "best effort". Other values will be ignored                                                                                          | `hard`                                |
 | `envFrom`                 | Templatable string to be passed to the [environment from variables][] which will be appended to the `envFrom:` definition for the container                                                                                          | `[]`                                  |

logstash/templates/statefulset.yaml

@@ -11,6 +11,10 @@ metadata:
     {{- range $key, $value := .Values.labels }}
     {{ $key }}: {{ $value | quote }}
     {{- end }}
+  annotations:
+    {{- range $key, $value := .Values.annotations }}
+    {{ $key }}: {{ $value | quote }}
+    {{- end }}
 spec:
   serviceName: {{ template "logstash.fullname" . }}-headless
   selector:

logstash/tests/logstash_test.py

@@ -546,6 +546,20 @@ def test_adding_tolerations():
     )
 
 
+def test_adding_annotations():
+    config = """
+annotations:
+  key: value
+"""
+    r = helm_template(config)
+    assert (
+        r["statefulset"][name]["metadata"]["annotations"][
+            "key"
+        ]
+        == "value"
+    )
+
+
 def test_adding_pod_annotations():
     config = """
 podAnnotations:

logstash/values.yaml

@@ -75,6 +75,9 @@ imageTag: "8.5.1"
 imagePullPolicy: "IfNotPresent"
 imagePullSecrets: []
 
+# Statefulset annotations
+annotations: {}
+
 podAnnotations: {}
 
 # additionals labels