Docker 部署指南：無需 DevOps 工程師，六步將容器服務部署至 HTTPS 網址

"It works in Docker on my laptop" is a great start. Getting that container onto a real server, behind a domain, with HTTPS and a way back when an update breaks, is where many small teams stall. Usually because nobody on the team is "the DevOps person".

You don't need one for a single server. This guide takes a Dockerfile or Compose project from your repo to a live HTTPS URL in six steps, explains the parts people get wrong, and then shows how ShipOwn automates the same path from a desktop app.

Why Docker on a VPS at all?

Any language. Python, Go, Rust, PHP, Ruby, Java and .NET apps all run the same way once they're in a container.
Same environment everywhere. The image you test is the image you run.
Clean server. Dependencies live in the image, not on the host.

If your app is plain Node.js, you may not need Docker at all; PM2 is lighter. Docker earns its place when you have non-Node services or several services wired together with Compose.

Step 1: Install Docker properly

On Ubuntu, install Docker Engine and the Compose plugin from Docker's official repository (or with the convenience script for a quick test):

curl -fsSL https://get.docker.com | sh
sudo usermod -aG docker $USER   # log out and in again
docker compose version

Step 2: Build on the server

git clone https://github.com/you/service.git && cd service
docker compose build

Tag images with the commit you built from, so you always know what's running:

docker build -t service:$(git rev-parse --short HEAD) .

Step 3: Bind to localhost, not the world

This is the most common Docker-on-VPS mistake. ports: "8000:8000" publishes the port on every interface, and Docker's own firewall rules can bypass ufw. Bind to loopback instead and let Nginx be the only public entry:

services:
  web:
    build: .
    restart: unless-stopped
    ports:
      - "127.0.0.1:8000:8000"
    env_file: .env
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:8000/health"]
      interval: 30s
      retries: 3

Step 4: Start it and check health

docker compose up -d
docker compose ps        # look for "healthy"
docker compose logs -f web

restart: unless-stopped brings the container back after a crash or reboot.

Step 5: Nginx and HTTPS

server {
  server_name service.example.com;
  location / {
    proxy_pass http://127.0.0.1:8000;
    proxy_set_header Host $host;
    proxy_set_header X-Forwarded-Proto $scheme;
  }
}

sudo nginx -t && sudo systemctl reload nginx
sudo certbot --nginx -d service.example.com

Step 6: Update safely and keep a way back

The risky update is git pull && docker compose up -d --build on a live service. If the new image starts but is broken, you're down until you fix it.

A safer pattern:

Build the new image with a new tag.
Start it alongside the old one on a different localhost port.
Wait for its health check to pass.
Switch Nginx to the new port, nginx -t, reload.
Keep the old image for a quick rollback.

It works, but it's a lot of steps to repeat by hand.

Doing it with ShipOwn

ShipOwn is a desktop app for Windows, macOS and Linux that deploys over plain SSH. No ShipOwn deployment agent is installed on the server. For Docker apps it follows the safe pattern above:

Builds your Dockerfile or Compose file on the server.
Labels images with the commit they came from.
Routes through Nginx to 127.0.0.1 when configured.
Keeps the previous container until the health check passes.
Lets you go back to an earlier image later.

The deploy flow is the same as for every ShipOwn app: connect a server, pick a GitHub branch or local folder, review an editable plan, watch the build stream live, then operate it from one page. If the server has no Docker yet, ShipOwn can install it for you.

Managing containers you already have

ShipOwn also works with containers already running on the server. It inspects every container, maps published and internal ports, shows CPU and memory gauges, calls out crash loops, and gives you start, stop and restart, a shell inside the container, and its logs.

Domains and certificates

Point a domain at the app and ShipOwn writes the Nginx virtual host, tests it before reloading, restores it if Nginx rejects it, and asks Certbot for a certificate. Certificate expiry is shown in the app.

Troubleshooting checklist

Symptom	Likely cause
Container restarts in a loop	App crashes on start; read `docker logs`
502 from Nginx	Wrong port, or container bound to a different interface
Service reachable on `IP:8000` from the internet	Port published on `0.0.0.0` instead of `127.0.0.1`
Disk full	Old images and build cache; `docker system prune` with care
Env vars missing	`.env` not loaded or wrong `env_file` path

Stuck on something else? ShipOwn's AI terminal uses your own Anthropic, OpenAI or DeepSeek key to propose one command at a time, with its reason. You approve each one, and destructive commands always wait for confirmation.

FAQ

Does ShipOwn use Kubernetes or Swarm? No. It builds and runs containers on a single Linux server you control.

Is Docker required for every app? No. Node apps run under PM2 and static sites are served by Nginx without Docker.

Is ShipOwn open source? No, it's a commercial app. What runs on your server is plain SSH and shell commands.

Conclusion

You don't need a DevOps engineer to run containers on a VPS. You need localhost-bound ports, Nginx, HTTPS, health checks and a rollback plan. Learn the steps above, then let ShipOwn run them for you. Free 30-day trial, no card.

Written by Vishvajeet Shukla, full stack developer and creator of ShipOwn.