Reverse Proxy Examples

Introduction

Reverse proxies like Caddy and Traefik can be configured to front and protect your Backrest endpoint.

Using Caddy

For this example, we'll be running Caddy alongside Backrest via docker-compose.yaml but you can adapt this config to your environment.

Here is an example docker-compose.yaml:

version: "3.2"
services:
  backrest:
    image: garethgeorge/backrest
    container_name: backrest
    hostname: <YOUR PROXIED FQDN HERE (example: backrest.example.com)>
    volumes:
      - ./backrest/data:/data
      - ./backrest/config:/config
      - ./backrest/cache:/cache
      - /MY-BACKUP-DATA:/userdata # mount your directories to backup somewhere in the filesystem
      - /MY-REPOS:/repos # (optional) mount your restic repositories somewhere in the filesystem.
    environment:
      - BACKREST_DATA=/data # path for backrest data. restic binary and the database are placed here.
      - BACKREST_CONFIG=/config/config.json # path for the backrest config file.
      - XDG_CACHE_HOME=/cache # path for the restic cache which greatly improves performance.
    restart: unless-stopped
    depends_on:
      - caddy
  caddy:
    image: caddy
    container_name: caddy
    ports:
      - "443:443"
      - "443:443/udp"
    volumes:
      - ./caddy/Caddyfile:/etc/caddy/Caddyfile
    restart: unless-stopped

Your Caddyfile should look like this:

{
    https_port 443
}

backrest.example.com {
  tls internal
  reverse_proxy backrest:9898
}

Some items to note:

  • The reverse_proxy line in your Caddyfile must match your Backrest container's name!
  • You can extend this with acme_dns to obtain certificates for your endpoint.
  • tls internal means that Caddy will generate and utilize a self-signed certificate.
  • You can create an authentication portal to allow login via Google, etc.
  • You can opt to have Caddy listen to requests on port 80 (HTTP) but that's not recommended for security reasons.
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