---
version: '3.4'

services:
  tmate-server:
    image: tmate/tmate-ssh-server:latest
    ports:
      - 2200:2200
    mem_limit: 64m
    volumes:
      - /etc/ssh/ssh_host_ed25519_key:/ssh/ssh_host_ed25519_key:ro
      - /etc/ssh/ssh_host_rsa_key:/ssh/ssh_host_rsa_key:ro
    networks:
      - default
    restart: always
    environment:
      SSH_KEYS_PATH: /ssh
      SSH_HOSTNAME: dotya.ml
      SSH_PORT_LISTEN: 2200
    cap_add:
      - SYS_ADMIN
...