version: '2'
services:
letsencrypt:
image: linuxserver/letsencrypt
container_name: letsencrypt
ports:
- 443:443
volumes:
- /opt/appdata/letsencrypt/config:/config
restart:
always
environment:
- PUID=1050
- PGID=1050
- EMAIL=mail@domain.com
- URL=sub.domain.com
- TZ=Europe/Berlin
- VALIDATION=dns
- DNSPLUGIN=manual
...
Please set the DNSPLUGIN variable to a valid plugin name. See docker info for more details.