updated docker compose to demangle postgres from synapse namespace

docker/synapse/compose.yaml

@@ -1,6 +1,7 @@
 services:
   postgres:
     image: postgres:15-alpine
+    container_name: postgres
     restart: always
     environment:
       POSTGRES_USER: ${PSQL_NAME}
@@ -28,6 +29,7 @@ services:
 
   synapse-foxgirls:
     image: matrixdotorg/synapse:latest
+    container_name: synapse-foxgirls
     restart: unless-stopped
     environment:
       SYNAPSE_SERVER_NAME: foxgirls.date

nextcloud/compose.yaml

@@ -9,7 +9,7 @@ services:
       - /var/lib/nextcloud/tmp:/tmp
       - ./nextcloud_data:/var/www/html
     environment:
-      - POSTGRES_HOST=synapse-postgres-1                   # Change to your Postgres IP/Hostname
+      - POSTGRES_HOST=postgres                             # Change to your Postgres IP/Hostname
       - POSTGRES_DB=${DB_NAME}                             # Your Postgres DB name
       - POSTGRES_USER=${DB_UNAME}                          # Your Postgres user
       - POSTGRES_PASSWORD=${DB_PASS}                       # Your Postgres password