SafeLine WAF Docker Install: The Simple Path

Check the server first

Do this before you paste an installer into a terminal. It saves time, especially on small VPS machines and older CPUs.

uname -m
docker version
docker compose version
free -h
df -h
lscpu | grep ssse3

Run the recommended installer

The official docs recommend the automated deployment path. It requires root privileges and pulls the current SafeLine stack for you.

bash -c "$(curl -fsSLk https://waf.chaitin.com/release/latest/manager.sh)" -- --en

Open the dashboard

After deployment, open the console in your browser. Replace the IP with your server address.

https://<safeline-ip>:9443/

Reset the administrator account

If you need the initial login, the official docs use this container command. Save the generated password right away.

docker exec safeline-mgt resetadmin

Small-site advice

For a personal site or small SaaS app, start with one upstream service. Do not protect every hostname on day one. Make sure normal login, uploads, webhooks, and API calls still work.

SafeLine WAF Docker install flow explained

The search safeline waf docker is usually from someone who wants a command that works. The command matters, but the order matters more: check the server, install with the official script, open the dashboard, then test one upstream.

The official deployment docs list Linux as the operating system requirement, Docker 20.10.14 or above, Docker Compose 2.0.0 or above, 1 core CPU, 1 GB memory, 5 GB disk, and ssse3 CPU support. Those numbers make SafeLine approachable on a small VPS, but they are still minimums.

If you plan to protect a busy site, leave more headroom. A WAF sees every request before your application does. CPU, memory, disk, and log retention should be sized for real traffic, not only for a successful install.

Manual Docker Compose path

The one-command installer is easiest. The manual path is useful when you want to see what is being written to disk.

• Create a SafeLine data directory, commonly /data/safeline.
• Download the official compose.yaml from the SafeLine release URL.
• Create a .env file with SAFELINE_DIR, IMAGE_TAG, MGT_PORT, POSTGRES_PASSWORD, and network settings.
• Run docker compose up -d from the SafeLine directory.
• Open https://<safeline-ip>:9443/ and reset the admin account if needed.

Troubleshooting notes for Docker users

If SafeLine WAF Docker install fails, check boring things first. Is Docker Compose v2 available as docker compose, not only docker-compose? Does your CPU expose ssse3? Is port 9443 blocked by a firewall? Did image pulling fail because of network restrictions?

For site owners, the most important test is not whether the dashboard opens. It is whether your real application still behaves normally after traffic passes through SafeLine. Test login, cookies, uploads, API clients, payment callbacks, and search-engine crawlers.