add rabbitmq entrypoint, fix config permission

compose.yml

@@ -8,7 +8,7 @@ services:
     configs:
       - source: entrypoint
         target: /custom-entrypoint.sh
-        mode: 555
+        mode: 0555
     entrypoint: /custom-entrypoint.sh
     environment:
       DB_HOST: "database"
@@ -61,7 +61,7 @@ services:
     configs:
       - source: pg_backup
         target: /pg_backup.sh
-        mode: 555
+        mode: 0555
     healthcheck:
       test: [ "CMD-SHELL", "pg_isready" ]
       interval: 10s
@@ -81,7 +81,7 @@ services:
     configs:
       - source: memcached_entrypoint
         target: /custom-entrypoint.sh
-        mode: 555
+        mode: 0555
     entrypoint: /custom-entrypoint.sh
     secrets:
       - memcached_password
@@ -95,11 +95,13 @@ services:
     image: "rabbitmq:4.0.6"
     environment:
       RABBITMQ_DEFAULT_USER: "zulip"
-      RABBITMQ_DEFAULT_PASS_FILE: "/run/secrets/rabbitmq_password"
     configs:
       - source: rabbitmq_healthcheck
         target: /healthcheck.sh
-        mode: 555
+        mode: 0555
+      - source: rabbitmq_entrypoint
+        target: /custom-entrypoint.sh
+        mode: 0555
     secrets:
       - rabbitmq_password
     volumes:
@@ -117,7 +119,7 @@ services:
     configs:
       - source: redis_entrypoint
         target: /custom-entrypoint.sh
-        mode: 555
+        mode: 0555
     entrypoint: /custom-entrypoint.sh
     secrets:
       - redis_password

entryopoint.rabbitmq.sh.tmpl

@@ -0,0 +1,17 @@
+#!/bin/sh
+
+if [ -f /run/secrets/memcached_password ]; then
+  export MEMCACHED_PASSWORD=$(cat /run/secrets/memcached_password)
+else
+  echo "Membcached password secret not found, skipping."
+fi
+
+
+set -e
+
+# first arg is `-f` or `--some-option`
+if [ "${1#-}" != "$1" ]; then
+	set -- memcached "$@"
+fi
+
+exec "$@"