[kibana] Make health check path configurable

kibana/README.md

@@ -50,6 +50,7 @@ helm install --name kibana elastic/kibana --version 7.0.0-alpha1 --set imageTag=
 | `imagePullPolicy`         | The Kubernetes [imagePullPolicy](https://kubernetes.io/docs/concepts/containers/images/#updating-images) value                                                                                                                                                                                                                                                 | `IfNotPresent`                                                                                                            |
 | `resources`               | Allows you to set the [resources](https://kubernetes.io/docs/concepts/configuration/manage-compute-resources-container/) for the statefulset                                                                                                                                                                                                                   | `requests.cpu: 100m`<br>`requests.memory: 2Gi`<br>`limits.cpu: 1000m`<br>`limits.memory: 2Gi`                             |
 | `protocol`                | The protocol that will be used for the readinessProbe. Change this to `https` if you have `server.ssl.enabled: true` set                                                                                                                                                                                                                                       | `http`                                                                                                                    |
+| `healthCheckPath`         | The path used for the readinessProbe to check that Kibana is ready                                                                                                                                                                                                                                                                                             | `/app/kibana`                                                                                                             |
 | `kibanaConfig`            | Allows you to add any config files in `/usr/share/kibana/config/` such as `kibana.yml`. See [values.yaml](./values.yaml) for an example of the formatting.                                                                                                                                                                                                     | `{}`                                                                                                                      |
 | `podSecurityContext`      | Allows you to set the [securityContext](https://kubernetes.io/docs/tasks/configure-pod-container/security-context/#set-the-security-context-for-a-pod) for the pod                                                                                                                                                                                             | `{}`                                                                                                                      |
 | `serviceAccount`          | Allows you to overwrite the "default" [serviceAccount](https://kubernetes.io/docs/tasks/configure-pod-container/configure-service-account/) for the pod                                                                                                                                                                                                        | `[]`                                                                                                                      |

kibana/templates/deployment.yaml

@@ -91,7 +91,7 @@ spec:
                     curl -k "$@" "{{ .Values.protocol }}://localhost:{{ .Values.httpPort }}${path}"
                 }
 
-                http "/app/kibana"
+                http "{{ .Values.healthCheckPath }}"
         ports:
         - containerPort: {{ .Values.httpPort }}
         resources:

kibana/tests/kibana_test.py

@@ -30,6 +30,8 @@ def test_defaults():
     assert c['env'][0]['name'] == 'ELASTICSEARCH_HOSTS'
     assert c['env'][0]['value'] == elasticsearchHosts
 
+    assert 'http "/app/kibana"' in c['readinessProbe']['exec']['command'][-1]
+
     # Empty customizable defaults
     assert 'imagePullSecrets' not in r['deployment'][name]['spec']['template']['spec']
     assert 'tolerations' not in r['deployment'][name]['spec']['template']['spec']
@@ -224,3 +226,12 @@ def test_changing_the_protocol():
     r = helm_template(config)
     c = r['deployment'][name]['spec']['template']['spec']['containers'][0]
     assert 'https://' in c['readinessProbe']['exec']['command'][-1]
+
+def test_changing_the_health_check_path():
+    config = '''
+healthCheckPath: "/kibana/app/kibana"
+'''
+    r = helm_template(config)
+    c = r['deployment'][name]['spec']['template']['spec']['containers'][0]
+
+    assert 'http "/kibana/app/kibana"' in c['readinessProbe']['exec']['command'][-1]

kibana/values.yaml

@@ -34,6 +34,8 @@ resources:
 
 protocol: http
 
+healthCheckPath: "/app/kibana"
+
 # Allows you to add any config files in /usr/share/kibana/config/
 # such as kibana.yml
 kibanaConfig: {}