docs(argo-cd): Document scheduling parameters for redis-ha (#2253)

Signed-off-by: Petr Drastil <petr.drastil@gmail.com>

charts/argo-cd/Chart.yaml

@@ -3,7 +3,7 @@ appVersion: v2.8.3
 kubeVersion: ">=1.23.0-0"
 description: A Helm chart for Argo CD, a declarative, GitOps continuous delivery tool for Kubernetes.
 name: argo-cd
-version: 5.45.4
+version: 5.45.5
 home: https://github.com/argoproj/argo-helm
 icon: https://argo-cd.readthedocs.io/en/stable/assets/logo.png
 sources:
@@ -26,5 +26,5 @@ annotations:
     fingerprint: 2B8F22F57260EFA67BE1C5824B11F800CD9D2252
     url: https://argoproj.github.io/argo-helm/pgp_keys.asc
   artifacthub.io/changes: |
-    - kind: fixed
-      description: Restart Repo Server and Application Controller as following the change of Argo CD CM
+    - kind: added
+      description: Documented scheduling parameters for redis-ha

charts/argo-cd/README.md

@@ -998,17 +998,27 @@ The main options are listed here:
 
 | Key | Type | Default | Description |
 |-----|------|---------|-------------|
+| redis-ha.additionalAffinities | object | `{}` | Additional affinities to add to the Redis server pods. |
+| redis-ha.affinity | object | `{}` | Assign custom [affinity] rules to the Redis pods. |
 | redis-ha.enabled | bool | `false` | Enables the Redis HA subchart and disables the custom Redis single node deployment |
 | redis-ha.exporter.enabled | bool | `false` | Enable Prometheus redis-exporter sidecar |
 | redis-ha.exporter.image | string | `"public.ecr.aws/bitnami/redis-exporter"` | Repository to use for the redis-exporter |
 | redis-ha.exporter.tag | string | `"1.53.0"` | Tag to use for the redis-exporter |
+| redis-ha.haproxy.additionalAffinities | object | `{}` | Additional affinities to add to the haproxy pods. |
+| redis-ha.haproxy.affinity | object | `{}` | Assign custom [affinity] rules to the haproxy pods. |
 | redis-ha.haproxy.enabled | bool | `true` | Enabled HAProxy LoadBalancing/Proxy |
+| redis-ha.haproxy.hardAntiAffinity | bool | `true` | Whether the haproxy pods should be forced to run on separate nodes. |
 | redis-ha.haproxy.metrics.enabled | bool | `true` | HAProxy enable prometheus metric scraping |
+| redis-ha.haproxy.tolerations | list | `[]` | [Tolerations] for use with node taints for haproxy pods. |
+| redis-ha.hardAntiAffinity | bool | `true` | Whether the Redis server pods should be forced to run on separate nodes. |
+| redis-ha.image.repository | string | `"redis"` | Redis repository |
 | redis-ha.image.tag | string | `"7.0.11-alpine"` | Redis tag |
 | redis-ha.persistentVolume.enabled | bool | `false` | Configures persistence on Redis nodes |
 | redis-ha.redis.config | object | See [values.yaml] | Any valid redis config options in this section will be applied to each server (see `redis-ha` chart) |
 | redis-ha.redis.config.save | string | `'""'` | Will save the DB if both the given number of seconds and the given number of write operations against the DB occurred. `""`  is disabled |
 | redis-ha.redis.masterGroupName | string | `"argocd"` | Redis convention for naming the cluster group: must match `^[\\w-\\.]+$` and can be templated |
+| redis-ha.tolerations | list | `[]` | [Tolerations] for use with node taints for Redis pods. |
+| redis-ha.topologySpreadConstraints | object | `{"enabled":false,"maxSkew":"","topologyKey":"","whenUnsatisfiable":""}` | Assign custom [TopologySpreadConstraints] rules to the Redis pods. |
 | redis-ha.topologySpreadConstraints.enabled | bool | `false` | Enable Redis HA topology spread constraints |
 | redis-ha.topologySpreadConstraints.maxSkew | string | `""` (defaults to `1`) | Max skew of pods tolerated |
 | redis-ha.topologySpreadConstraints.topologyKey | string | `""` (defaults to `topology.kubernetes.io/zone`) | Topology key for spread |

charts/argo-cd/values.yaml

@@ -1371,12 +1371,17 @@ redis:
       # -- Prometheus ServiceMonitor annotations
       annotations: {}
 
-# This key configures Redis-HA subchart and when enabled (redis-ha.enabled=true)
-# the custom redis deployment is omitted
-# Check the redis-ha chart for more properties
+## Redis-HA subchart replaces custom redis deployment when `redis-ha.enabled=true`
+# Ref: https://github.com/DandyDeveloper/charts/blob/master/charts/redis-ha/values.yaml
 redis-ha:
   # -- Enables the Redis HA subchart and disables the custom Redis single node deployment
   enabled: false
+  ## Redis image
+  image:
+    # -- Redis repository
+    repository: redis
+    # -- Redis tag
+    tag: 7.0.11-alpine
   ## Prometheus redis-exporter sidecar
   exporter:
     # -- Enable Prometheus redis-exporter sidecar
@@ -1388,6 +1393,7 @@ redis-ha:
   persistentVolume:
     # -- Configures persistence on Redis nodes
     enabled: false
+  ## Redis specific configuration options
   redis:
     # -- Redis convention for naming the cluster group: must match `^[\\w-\\.]+$` and can be templated
     masterGroupName: argocd
@@ -1397,16 +1403,35 @@ redis-ha:
       # -- Will save the DB if both the given number of seconds and the given number of write operations against the DB occurred. `""`  is disabled
       # @default -- `'""'`
       save: '""'
+  ## Enables a HA Proxy for better LoadBalancing / Sentinel Master support. Automatically proxies to Redis master.
   haproxy:
     # -- Enabled HAProxy LoadBalancing/Proxy
     enabled: true
     metrics:
       # -- HAProxy enable prometheus metric scraping
       enabled: true
-  image:
-    # -- Redis tag
-    tag: 7.0.11-alpine
+    # -- Whether the haproxy pods should be forced to run on separate nodes.
+    hardAntiAffinity: true
+    # -- Additional affinities to add to the haproxy pods.
+    additionalAffinities: {}
+    # -- Assign custom [affinity] rules to the haproxy pods.
+    affinity: {}
+    # -- [Tolerations] for use with node taints for haproxy pods.
+    tolerations: []
 
+  # -- Whether the Redis server pods should be forced to run on separate nodes.
+  hardAntiAffinity: true
+
+  # -- Additional affinities to add to the Redis server pods.
+  additionalAffinities: {}
+
+  # -- Assign custom [affinity] rules to the Redis pods.
+  affinity: {}
+
+  # -- [Tolerations] for use with node taints for Redis pods.
+  tolerations: []
+
+  # -- Assign custom [TopologySpreadConstraints] rules to the Redis pods.
   ## https://kubernetes.io/docs/concepts/workloads/pods/pod-topology-spread-constraints/
   topologySpreadConstraints:
     # -- Enable Redis HA topology spread constraints