Chore: make some env vars customizable in docker compose

docker-compose.yml

@@ -1,4 +1,4 @@
-version: '3'
+# version: '3'
 
 services:
   docmost:
@@ -7,12 +7,12 @@ services:
       - db
       - redis
     environment:
-      APP_URL: 'http://localhost:3000'
-      APP_SECRET: 'REPLACE_WITH_LONG_SECRET'
-      DATABASE_URL: 'postgresql://docmost:STRONG_DB_PASSWORD@db:5432/docmost?schema=public'
-      REDIS_URL: 'redis://redis:6379'
+      APP_URL: ${APP_URL:-http://localhost:3000}
+      APP_SECRET: ${APP_SECRET}
+      DATABASE_URL: 'postgresql://${POSTGRES_USER}:${POSTGRES_PASSWORD}@db:${POSTGRES_PORT}/${POSTGRES_DB}?schema=public'
+      REDIS_URL: 'redis://redis:${REDIS_PORT:-6379}'
     ports:
-      - "3000:3000"
+      - "${PORT:-3000}:3000"
     restart: unless-stopped
     volumes:
       - docmost:/app/data/storage
@@ -20,9 +20,10 @@ services:
   db:
     image: postgres:16-alpine
     environment:
-      POSTGRES_DB: docmost
-      POSTGRES_USER: docmost
-      POSTGRES_PASSWORD: STRONG_DB_PASSWORD
+      POSTGRES_PORT: ${POSTGRES_PORT:-5432}
+      POSTGRES_DB: ${POSTGRES_DB:-docmost}
+      POSTGRES_USER: ${POSTGRES_USER:-root}
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-toor}
     restart: unless-stopped
     volumes:
       - db_data:/var/lib/postgresql/data