a docker-compose to build antora sites with plantuml diagrams

docker-compose.yml

version: "2.1"
services:

  plantuml-container:
    image: "plantuml/plantuml-server:jetty"

  antora:
    image: "jagedn/antora-plantuml"
    depends_on:
      plantuml-container:
        condition: service_started
    volumes:
      - .:/antora

site.yml

site:
  title: My site
  url: https://example.com
  start_page: ROOT::index.adoc
content:
  sources:
    - url: /antora
      start_path: docs
      branches: HEAD

asciidoc:
  extensions:
    - asciidoctor-plantuml
  attributes:
    plantuml-server-url: 'http://plantuml-container:8080'
    plantuml-fetch-diagram: true

output:
  clean: true
  dir: ./build/private
  destinations:
    - provider: archive