RocketChat on Docker Synology DSM 6.2 or higher

If your CPU support AVX or AVX2 use - mongo:5 if no support AVS use - mongo:4.4.

Step 0: Firewall on DSM - IS OFF (!) or use rules for Docker containet subnet after installation RocketChat.

Step: 1 Create folders in DSM for ex. volume1:

/volume1/docker/mongodb/db /volume1/docker/mongodb/dump

/volume1/docker/rocketchat/uploads

/volume1/docker/rocketchat/emoji

/volume1/docker/rocketchat/sounds

Step 2: Open Portainer or Docker Compose - Add Stack

Step 3: Use code on Docker-Compose.yaml

Step 4: Deploy

Step 5: Wait 5 min and open https://localhost:3111 or https://chat.domain.com

FYI:

1. Use revers proxy on DSM: https://chat.domain.com (442 port for https) to localhost:3111 (80 port) and include WebSocket.

2. Check accessess folder on DSM for /docker/rocketchat/uploads if allow File uploads if allow File storage type -> File system.