feat: argo-cd can deploy Redis HA

Signed-off-by: Carlos Juan Gómez Peñalver <carlosjuangp@gmail.com>

charts/argo-cd/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v1
 appVersion: "1.4.2"
 description: A Helm chart for ArgoCD, a declarative, GitOps continuous delivery tool for Kubernetes.
 name: argo-cd
-version: 1.8.7
+version: 1.8.8
 home: https://github.com/argoproj/argo-helm
 icon: https://raw.githubusercontent.com/argoproj/argo/master/docs/assets/argo.png
 keywords:

charts/argo-cd/README.md

@@ -257,3 +257,5 @@ Helm v3 has removed the `install-crds` hook so CRDs are now populated by files i
 | redis.resources | Resource limits and requests for redis | `{}` |
 | redis.servicePort | Redis service port | `6379` |
 | redis.tolerations | Tolerations for use with node taints https://kubernetes.io/docs/concepts/configuration/taint-and-toleration/ | `[]` |
+| redis.ha | Configures Redis HA subchart https://github.com/helm/charts/tree/master/stable/redis-ha | | |
+| redis.ha.enabled | Enables the Redis HA subchart and disabled the custom Redis single node deployment| `false` |

charts/argo-cd/requirements.lock

@@ -0,0 +1,6 @@
+dependencies:
+- name: redis-ha
+  repository: https://kubernetes-charts.storage.googleapis.com
+  version: 4.3.4
+digest: sha256:281b2ee97e4ae47d8248912db4207bbb19f098de8de037452f7b50ebcc2819d4
+generated: "2020-03-18T20:14:33.015349017Z"

charts/argo-cd/requirements.yaml

@@ -0,0 +1,6 @@
+dependencies:
+- name: redis-ha
+  alias: redis.ha
+  version: 4.3.4
+  repository: https://kubernetes-charts.storage.googleapis.com
+  condition: redis.ha.enabled

charts/argo-cd/templates/_helpers.tpl

@@ -42,8 +42,12 @@ Create dex name and version as used by the chart label.
 Create redis name and version as used by the chart label.
 */}}
 {{- define "argo-cd.redis.fullname" -}}
+{{- if .Values.redis.ha.enabled -}}
+{{- printf "%s-redis-ha-haproxy" .Release.Name | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
 {{- printf "%s-%s" (include "argo-cd.fullname" .) .Values.redis.name | trunc 63 | trimSuffix "-" -}}
 {{- end -}}
+{{- end -}}
 
 {{/*
 Create argocd server name and version as used by the chart label.

charts/argo-cd/templates/redis/deployment.yaml

@@ -1,4 +1,4 @@
-{{- if .Values.redis.enabled }}
+{{- if and .Values.redis.enabled (not .Values.redis.ha.enabled) }}
 apiVersion: apps/v1
 kind: Deployment
 metadata:

charts/argo-cd/templates/redis/service.yaml

@@ -1,4 +1,4 @@
-{{- if .Values.redis.enabled }}
+{{- if and .Values.redis.enabled (not .Values.redis.ha.enabled) }}
 apiVersion: v1
 kind: Service
 metadata:

charts/argo-cd/values.yaml

@@ -282,6 +282,24 @@ redis:
   volumeMounts: []
   volumes: []
 
+  # This key configures Redis-HA subchart and when enabled (redis.ha.enabled=true)
+  # the custom redis deployment is omitted
+  ha:
+    enabled: false
+    # Check the redis-ha chart for more properties
+    exporter:
+      enabled: true
+    persistentVolume:
+      enabled: false
+    redis:
+      masterGroupName: argocd
+      config:
+        save: "\"\""
+    haproxy:
+      enabled: true
+      metrics:
+        enabled: true
+
 ## Server
 server:
   name: server