feat: Add busybox image configuration with global registry support

- Add busybox image configuration to values.yaml
- Update all hardcoded busybox references to use image helpers
- Now all images (including utility images) respect global.image.registry

This ensures air-gapped environments can use a private registry for all container images.

Author: michaelstingl

charts/opencloud/templates/collaboration/deployment.yaml

@@ -26,13 +26,15 @@ spec:
       initContainers:
         # Wait for OpenCloud to be ready
         - name: wait-for-opencloud
-          image: busybox
+          image: {{ include "opencloud.image" (dict "imageValues" .Values.busybox.image "global" .Values.global) | quote }}
+          imagePullPolicy: {{ include "opencloud.image.pullPolicy" (dict "pullPolicy" .Values.busybox.image.pullPolicy "global" .Values.global) | quote }}
           command: ['sh', '-c', 'until wget -q -O- http://{{ include "opencloud.opencloud.fullname" . }}:9200/health; do echo waiting for opencloud; sleep 5; done;']
 
         {{- if not .Values.opencloud.persistence.enabled }}
         # Copy config from OpenCloud API if persistence is disabled
         - name: copy-config
-          image: busybox
+          image: {{ include "opencloud.image" (dict "imageValues" .Values.busybox.image "global" .Values.global) | quote }}
+          imagePullPolicy: {{ include "opencloud.image.pullPolicy" (dict "pullPolicy" .Values.busybox.image.pullPolicy "global" .Values.global) | quote }}
           command: ['sh', '-c', 'mkdir -p /etc/opencloud && wget -q -O /etc/opencloud/config.json http://{{ include "opencloud.opencloud.fullname" . }}:9200/api/v1/config/secrets || echo "Failed to get config from OpenCloud"']
           volumeMounts:
             - name: etc-opencloud
@@ -42,13 +44,15 @@ spec:
         {{- if .Values.onlyoffice.enabled }}
         # Wait for OnlyOffice to be ready
         - name: wait-for-onlyoffice
-          image: busybox
+          image: {{ include "opencloud.image" (dict "imageValues" .Values.busybox.image "global" .Values.global) | quote }}
+          imagePullPolicy: {{ include "opencloud.image.pullPolicy" (dict "pullPolicy" .Values.busybox.image.pullPolicy "global" .Values.global) | quote }}
           command: ['sh', '-c', 'until wget -q -O- http://{{ include "opencloud.fullname" . }}-onlyoffice:80/hosting/discovery; do echo waiting for onlyoffice; sleep 2; done;']
         {{- end }}
         {{- if .Values.collabora.enabled }}
         # Wait for Collabora to be ready
         - name: wait-for-collabora
-          image: busybox
+          image: {{ include "opencloud.image" (dict "imageValues" .Values.busybox.image "global" .Values.global) | quote }}
+          imagePullPolicy: {{ include "opencloud.image.pullPolicy" (dict "pullPolicy" .Values.busybox.image.pullPolicy "global" .Values.global) | quote }}
           command: ['sh', '-c', 'until wget -q -O- http://{{ include "opencloud.fullname" . }}-collabora:9980/hosting/discovery; do echo waiting for collabora; sleep 2; done;']
         {{- end }}
       containers:

charts/opencloud/templates/minio/deployment.yaml

@@ -24,7 +24,8 @@ spec:
         fsGroup: 1000
       initContainers:
         - name: init-minio-bucket
-          image: busybox
+          image: {{ include "opencloud.image" (dict "imageValues" .Values.busybox.image "global" .Values.global) | quote }}
+          imagePullPolicy: {{ include "opencloud.image.pullPolicy" (dict "pullPolicy" .Values.busybox.image.pullPolicy "global" .Values.global) | quote }}
           securityContext:
             runAsUser: 1000
             runAsGroup: 1000

charts/opencloud/templates/opencloud/deployment.yaml

@@ -35,7 +35,8 @@ spec:
         fsGroup: 1000
       initContainers:
         - name: init-config
-          image: busybox
+          image: {{ include "opencloud.image" (dict "imageValues" .Values.busybox.image "global" .Values.global) | quote }}
+          imagePullPolicy: {{ include "opencloud.image.pullPolicy" (dict "pullPolicy" .Values.busybox.image.pullPolicy "global" .Values.global) | quote }}
           command: ['sh', '-c', 'mkdir -p /etc/opencloud /var/lib/opencloud']
           volumeMounts:
             - name: config
@@ -94,7 +95,8 @@ spec:
         {{- end }}
         # Final init container to copy all extensions to the apps directory
         - name: init-web-extensions
-          image: busybox
+          image: {{ include "opencloud.image" (dict "imageValues" .Values.busybox.image "global" .Values.global) | quote }}
+          imagePullPolicy: {{ include "opencloud.image.pullPolicy" (dict "pullPolicy" .Values.busybox.image.pullPolicy "global" .Values.global) | quote }}
           command: ['sh', '/scripts/init-web-extensions.sh']
           volumeMounts:
             - name: extensions

charts/opencloud/values.yaml

@@ -61,6 +61,22 @@ global:
     # Options: Always, IfNotPresent, Never
     pullPolicy: ""
 
+# =====================================================================
+# UTILITY IMAGES
+# =====================================================================
+
+# Busybox image settings (used for init containers)
+busybox:
+  image:
+    # Busybox image registry
+    registry: docker.io
+    # Busybox image repository
+    repository: library/busybox
+    # Busybox image tag
+    tag: "1.36"
+    # Image pull policy
+    pullPolicy: IfNotPresent
+
 # =====================================================================
 # IDENTITY PROVIDER (KEYCLOAK)
 # =====================================================================