fix(services): Add memcached service

Add documentation about cache service and refactor into seperate default environment file.
Refactor OpenProject to use external memcached service.

helmfile/environments/default/cache.yaml

@@ -0,0 +1,16 @@
+# SPDX-FileCopyrightText: 2023 Bundesministerium des Innern und für Heimat, PG ZenDiS "Projektgruppe für Aufbau ZenDiS"
+# SPDX-License-Identifier: Apache-2.0
+---
+cache:
+  intercomService:
+    host: "redis-headless"
+    port: 6379
+    password: ""
+  nextcloud:
+    host: "redis-headless"
+    port: 6379
+    password: ""
+  openproject:
+    host: "memcached"
+    port: 11211
+...

helmfile/environments/default/images.yaml

@@ -77,8 +77,8 @@ images:
     # @supplier: "openDesk DevSecOps"
   memcached:
     repository: "bitnami/memcached"
-    tag: "1.6.21-debian-11-r84@sha256:81747acd297d3fcd05706ea771d441a6f01b28d722c366a06f922b6b7d4033dd"
-    # @supplier: "OpenProject"
+    tag: "1.6.21-debian-11-r107@sha256:247ec29efd6030960047a623aef025021154662edf6b6d6e88c97936f164d99d"
+    # @supplier: "openDesk DevSecOps"
   milter:
     repository: "clamav/clamav"
     tag: "1.1.1-10_base@sha256:aed8d5a3ef58352c862028fae44241215a50eae0b9acb7ba8892b1edc0a6598f"

helmfile/environments/default/resources.yaml

@@ -114,6 +114,13 @@ resources:
     requests:
       cpu: 0.1
       memory: "500Mi"
+  memcached:
+    limits:
+      cpu: 1
+      memory: "256Mi"
+    requests:
+      cpu: 0.1
+      memory: "32Mi"
   milter:
     limits:
       cpu: 4

helmfile/environments/default/workplace.yaml

@@ -21,6 +21,8 @@ keycloak:
   enabled: true
 mariadb:
   enabled: true
+memcached:
+  enabled: true
 nextcloud:
   enabled: true
 openproject: