VPS Manager

Docker — Common Commands

List running containers

docker ps

List all containers (including stopped)

docker ps -a

View container logs (last 50 lines)

docker logs <container> --tail 50

Follow container logs

docker logs -f <container>

Start / stop / restart container

docker start|stop|restart <container>

Shell into a running container

docker exec -it <container> /bin/sh

Remove stopped containers

docker container prune

Remove unused images

docker image prune -a

Inspect container

docker inspect <container>

Show containers on a network

docker network inspect <network> --format '{{range .Containers}}{{.Name}} {{end}}'

Connect container to network

docker network connect <network> <container>

Docker Compose — Common Commands

Start services (detached)

docker compose up -d

Start and rebuild images

docker compose up -d --build

Stop services

docker compose down

Stop and remove volumes

docker compose down -v

View logs for all services

docker compose logs -f

Pull latest images

docker compose pull

Linux — Common Commands

Disk usage (human readable)

df -h

Directory size

du -sh <dir>

Memory usage

free -h

Running processes (top 10 by CPU)

ps aux --sort=-%cpu | head -10

Check open ports

ss -tlnp

Tail a log file

tail -f /var/log/syslog

Search running processes

ps aux | grep <name>

Check systemd service status

systemctl status <service>

Reload systemd after editing unit files

systemctl daemon-reload

Caddy

Reload config

docker exec caddy-caddy-1 caddy reload --config /etc/caddy/Caddyfile

Validate config

docker exec caddy-caddy-1 caddy validate --config /etc/caddy/Caddyfile

View Caddy logs

docker logs caddy-caddy-1 --tail 50

Deploying a New Project

1. Create project directory

mkdir -p /home/runner/<project> && cd /home/runner/<project>

2. Create .env file

nano .env

3. Create docker-compose.yml — attach services to proxy network

services:
  app:
    image: ghcr.io/<owner>/<image>:${APP_VERSION}
    restart: unless-stopped
    expose:
      - "80"
    networks:
      - default
      - proxy

networks:
  default: {}
  proxy:
    external: true

4. Add to Caddyfile

<subdomain>.thekiffy.co.uk {
  reverse_proxy <service-name>:80
}

5. Deploy

docker compose up -d

6. Reload Caddy

docker exec caddy-caddy-1 caddy reload --config /etc/caddy/Caddyfile

Setting Up a GitHub Actions Runner

1. Create runner directory

mkdir -p /home/runner/actions-runner-<project> && cd /home/runner/actions-runner-<project>

2. Download runner (check GitHub for latest version)

curl -o runner.tar.gz -L https://github.com/actions/runner/releases/download/v2.322.0/actions-runner-linux-x64-2.322.0.tar.gz
tar xzf runner.tar.gz

3. Register with your repo (get token from repo → Settings → Actions → Runners)

./config.sh --url https://github.com/<owner>/<repo> --token <token>

4. Install and start as a service

sudo ./svc.sh install
sudo ./svc.sh start

5. Check status

sudo ./svc.sh status

Containers

Networks

Volumes