Allow setting of command and args on elastalert deployment (#5530)

* Allow setting of command and args on elastalert deployment

* Bumping minor version

stable/elastalert/Chart.yaml

@@ -1,6 +1,6 @@
 description: ElastAlert is a simple framework for alerting on anomalies, spikes, or other patterns of interest from data in Elasticsearch.
 name: elastalert
-version: 0.2.2
+version: 0.3.0
 appVersion: 0.1.30
 home: https://github.com/Yelp/elastalert
 icon: https://static-www.elastic.co/assets/blteb1c97719574938d/logo-elastic-elasticsearch-lt.svg

stable/elastalert/README.md

@@ -35,6 +35,8 @@ The command removes all the Kubernetes components associated with the chart and
 | `image.repository`     | docker image                                      | jertel/elastalert-docker        |
 | `image.tag`            | docker image tag                                  | 0.1.30                          |
 | `image.pullPolicy`     | image pull policy                                 | IfNotPresent                    |
+| `command`              | command override for container                    | `NULL`                          |
+| `args`                 | args override for container                       | `NULL`                          |
 | `replicaCount`         | number of replicas to run                         | 1                               |
 | `elasticsearch.host`   | elasticsearch endpoint to use                     | elasticsearch                   |
 | `elasticsearch.port`   | elasticsearch port to use                         | 80                              |

stable/elastalert/templates/deployment.yaml

@@ -25,6 +25,14 @@ spec:
       - name: elastalert
         image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
         imagePullPolicy: {{ .Values.image.pullPolicy }}
+{{- if .Values.command }}
+        command:
+{{ toYaml .Values.command | indent 10 }}
+{{- end }}
+{{- if .Values.args }}
+        args:
+{{ toYaml .Values.args | indent 10 }}
+{{- end }}
         volumeMounts:
           - name: config
             mountPath: '/opt/config'

stable/elastalert/values.yaml

@@ -25,6 +25,10 @@ elasticsearch:
   # whether or not to connect to es_host using TLS
   useSsl: "False"
 
+# Command and args override for container e.g. (https://kubernetes.io/docs/tasks/inject-data-application/define-command-argument-container/)
+# command: ["YOUR_CUSTOM_COMMAND"]
+# args: ["YOUR", "CUSTOM", "ARGS"]
+
 # rule configurations e.g. (http://elastalert.readthedocs.io/en/latest/)
 rules: {}
   # deadman_slack: |-