Don't mount deleted pads in instances and simplify volumes syntax

pica-etherpad/docker-compose.yml

@@ -31,7 +31,7 @@ networks:
   week_app-db:
     name: etherpad_week_app-queries-database
   #dpad-app: used by the dpad script to query the app via its web API
-  standard_dpad-app: 
+  standard_dpad-app:
     name: etherpad_standard_dpad-queries-app
   week_dpad-app:
     name:   etherpad_week-dpad-queries-app
@@ -67,8 +67,7 @@ services:
     container_name: etherpad_standard_app
     env_file: ./secrets/etherpad-app.secrets
     volumes:
-      - ./settings.json:/opt/etherpad-lite/settings.json
-      - standard_deleted-pads:/opt/etherpad-lite/deleted_pads
+      - ./settings.json:/opt/etherpad-lite/settings.json:ro
       - standard_api-key:/mountedAPIkey
     command: ["--apikey", "/mountedAPIkey/APIKEY.txt"]
     labels:
@@ -98,8 +97,7 @@ services:
     build: .
     env_file: ./secrets/etherpad-week-app.secrets
     volumes:
-      - ./settings_week.json:/opt/etherpad-lite/settings.json
-      - week_deleted-pads:/opt/etherpad-lite/deleted_pads
+      - ./settings_week.json:/opt/etherpad-lite/settings.json:ro
       - week_api-key:/mountedAPIkey
     command: ["--apikey", "/mountedAPIkey/APIKEY.txt"]
     labels:
@@ -124,20 +122,12 @@ services:
     restart: unless-stopped
 
 
-
-
-
   # script COMPLEMENTARY to etherpad plugin ep_delete_after_delay
   standard_delete-pad-after-delay:
     build:
       context: https://gitlab.utc.fr/picasoft/projets/delete-pad-after-delay.git
     volumes:
-      - type: volume
-        source: standard_api-key
-        target: /mountedAPIkey
-        read_only: true
-        volume:
-          nocopy: true
+      - standard_api-key:/mountedAPIkey:ro
       - standard_deleted-pads:/opt/etherpad-lite/deleted_pads
     networks:
       - standard_dpad-app
@@ -156,12 +146,7 @@ services:
     build:
       context: https://gitlab.utc.fr/picasoft/projets/delete-pad-after-delay.git
     volumes:
-      - type: volume
-        source: week_api-key
-        target: /mountedAPIkey
-        read_only: true
-        volume:
-          nocopy: true
+      - week_api-key:/mountedAPIkey:ro
       - week_deleted-pads:/opt/etherpad-lite/deleted_pads
     networks:
       - week_dpad-app