redis-ha: add custom command and args for sentinel container (#277)

Signed-off-by: Chris Boot <[email protected]>

charts/redis-ha/Chart.yaml

@@ -5,7 +5,7 @@ keywords:
 - redis
 - keyvalue
 - database
-version: 4.27.0
+version: 4.27.1
 appVersion: 7.2.4
 description: This Helm chart provides a highly available Redis implementation with a master/slave configuration and uses Sentinel sidecars for failover management
 icon: https://upload.wikimedia.org/wikipedia/en/thumb/6/6b/Redis_Logo.svg/1200px-Redis_Logo.svg.png

charts/redis-ha/README.md

@@ -120,6 +120,8 @@ The following table lists the configurable parameters of the Redis chart and the
 | `sentinel.password` | A password that configures a `requirepass` in the conf parameters (Requires `sentinel.auth: enabled`) |``|
 | `sentinel.existingSecret` | An existing secret containing a key defined by `sentinel.authKey` that configures `requirepass` in the conf parameters (Requires `sentinel.auth: enabled`, cannot be used in conjunction with `.Values.sentinel.password`) |``|
 | `sentinel.authKey` | The key holding the sentinel password in an existing secret. | `sentinel-password` |
+| `sentinel.customCommand` | Allows overriding the sentinel container command | `[]` |
+| `sentinel.customArgs` | Allows overriding the sentinel container arguments | `[]` |
 | `sentinel.quorum` | Minimum number of servers necessary to maintain quorum | `2` |
 | `sentinel.config` | Valid sentinel config options in this section will be applied as config options to each sentinel (see below) | see values.yaml |
 | `sentinel.customConfig` | Allows for custom sentinel.conf files to be applied. If this is used then `sentinel.config` is ignored |``|

charts/redis-ha/templates/redis-ha-statefulset.yaml

@@ -333,9 +333,17 @@ spec:
  image: {{ .Values.image.repository }}:{{ .Values.image.tag }}
  imagePullPolicy: {{ .Values.image.pullPolicy }}
  command:
+ {{- if .Values.sentinel.customCommand }}
+{{ toYaml .Values.sentinel.customCommand | indent 10 }}
+ {{- else }}
  - redis-sentinel
+ {{- end }}
  args:
+ {{- if .Values.sentinel.customArgs }}
+{{ toYaml .Values.sentinel.customArgs | indent 10 }}
+ {{- else }}
  - /data/conf/sentinel.conf
+ {{- end }}
  securityContext: {{ toYaml .Values.containerSecurityContext | nindent 10 }} 
 {{- if or .Values.auth .Values.sentinel.auth}}
  env:

charts/redis-ha/values.yaml

@@ -384,6 +384,9 @@ sentinel:
  ## Defines the key holding the sentinel password in existing secret.
  authKey: sentinel-password
 
+ customCommand: []
+ customArgs: []
+
  # liveness probe parameters for sentinel container
  livenessProbe:
  initialDelaySeconds: 30