Add restart policy to containers

docker-compose.yml

@@ -2,6 +2,7 @@ version: '3'
 services:
   nginx:
     image: nginx:1.15-alpine
+    restart: unless-stopped
     volumes:
       - ./data/nginx:/etc/nginx/conf.d
       - ./data/certbot/conf:/etc/letsencrypt
@@ -12,6 +13,7 @@ services:
     command: "/bin/sh -c 'while :; do sleep 6h & wait $${!}; nginx -s reload; done & nginx -g \"daemon off;\"'"
   certbot:
     image: certbot/certbot
+    restart: unless-stopped
     volumes:
       - ./data/certbot/conf:/etc/letsencrypt
       - ./data/certbot/www:/var/www/certbot