dm-dns01

This is Traefik ACME exec provider for Czech DNS provider Domain Master.

It can be used for Let's Encrypt DNS01 a challenge automation for records hosted in Domain Master's nameservers. This provider is suitable for running under dockerized Traefic (e.g. traefik:latest based on scratch) that does not contains shell or other unnecessary utilities.

Building

You may need to install dependencies first:

go get github.com/docopt/docopt-go

To obtain full static binary without single dependency run:

CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -ldflags="-s -w" -o dm-dns01

Thanks to Go goodness, you may also choose different platform (e.g. mips, aarch64, etc.) based on your needs.

And optionally shrink the result:

upx --ultra-brute dm-dns01

Example usage with docker-compose

Just provide following environment properties to access DM API

• EXEC_PATH - Path to build dm-dns01, accessible in guest container.
• DM_API_USER - DM API username
• DM_API_PASSWD- DM API password

WARNING: DM by default does not allow access to their API unless you got ,,partner'' status. You have to negotiate with them about this issue.

version: '3'

services:
  reverse-proxy:
    container_name: traefik
    image: traefik
    ports:
      - 80:80     # http
      - 443:443   # https      
    volumes:
      - traefik-tmp:/tmp
      - ./etc:/etc/traefik
      - /var/run/docker.sock:/var/run/docker.sock
    environment:
      - EXEC_PATH=/etc/traefik/dm-dns01
      - DM_API_USER=GR:JOHN-DOE
      - DM_API_PASSWD=35GRR46AS5S57BBF
  whoami:
    image: containous/whoami 
    labels:
      - traefik.enable=true
      - "traefik.frontend.rule=Host:whoami.docker.localhost"

volumes:
   traefik-tmp:
      driver: local

In example above dm-dns01 executable must be put under ./etc/dm-dns01 relative to docker-compose.yaml