How to Self-Host Vaultwarden with Docker

mkdir -p ~/vaultwarden && cd ~/vaultwarden

services:
  vaultwarden:
    image: vaultwarden/server:latest
    container_name: vaultwarden
    restart: unless-stopped
    environment:
      DOMAIN: "https://vault.example.com"
      SIGNUPS_ALLOWED: "true"
    volumes:
      - ./vw-data/:/data/
    ports:
      - "127.0.0.1:8000:80"

sudo docker compose up -d

map $http_upgrade $connection_upgrade {
    default upgrade;
    ''      "";
}

server {
    listen 80;
    listen [::]:80;
    server_name vault.example.com;

    client_max_body_size 525M;

    location / {
        proxy_pass http://127.0.0.1:8000;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }
}

sudo ln -s /etc/nginx/sites-available/vault.example.com /etc/nginx/sites-enabled/   # Ubuntu / Debian only
sudo nginx -t
sudo systemctl reload nginx

sudo certbot --nginx -d vault.example.com

sudo docker compose up -d