values: add a possibility to inject custom configs

Author: kofemann

README.md

@@ -24,6 +24,26 @@ helm  install --set image.tag=10.0.3 \
     --set "dcache.pools={d,f}"  my-release dcache/dcache
 ```
 
+## Add extra onfiguraton to dcache.conf of layout.conf files
+
+Two configuration properties control the: `dcache.configExtra` and `dcache.layoutExtra`. With a value files the confuguration can be adjusted as needed:
+
+```yaml
+dcache:
+  configExtra: |
+    custom.property = value
+
+  layoutExtra: |
+    [customDomain]
+    [customDomain/cell]
+```
+
+```bash
+helm  install --values custom-config.yaml my-release dcache/dcache
+```
+
+> [!NOTE]: The custom configurations are added at the end of dcache and layout conf files.
+
 ## Enable CTA plugin
 
 ```bash

templates/configmap.yaml

@@ -157,9 +157,11 @@ data:
     pool.mover.https.port.min={{ $.Values.mover.https }}
     pool.mover.https.port.max={{ $.Values.mover.https }}
 
-
 {{- end }}
 
+    # Extra user configuration
+{{ .Values.dcache.layoutExtra | indent 4 }}
+
   dcache.conf: |-
 {{- if .Values.services.srm.enabled }}
     dcache.enable.space-reservation = true
@@ -204,6 +206,10 @@ data:
     dcache.net.wan.port.min={{ $.Values.mover.wan_range_min }}
     dcache.net.wan.port.max={{ $.Values.mover.wan_range_max }}
 
+    # Extra user configuration
+{{ .Values.dcache.configExtra  | indent 4 }}
+
+
   00-init.sh: |-
     export JAVA=/usr/bin/java
     /opt/dcache/bin/dcache database update

values.yaml

@@ -21,6 +21,13 @@ dcache:
     - a
     - b
     - c
+  # extra configuration for dcache.conf
+  configExtra: |
+
+  # extra configuration for layout.conf
+  layoutExtra: |
+
+
   #
   # Extra modules added into /opt/dcache/share/plugins directory
   #