GitHubへの直接アクセスなしでプラグインをインストール

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Thank you @Falco! I’ve got it working on a very restricted RHEL VM and a Ubuntu 18.04 VM with access to everything (for generating the image), using the supported installation method (discourse/docs/INSTALL-cloud.md at main · discourse/discourse · GitHub). The missing /sbin/boot command was what caused the github.com access error.

In summary and for documentation; the steps needed to create and image and run it on my server:

  • Clone discourse:
git clone https://github.com/discourse/discourse_docker.git /var/discourse && cd /var/discourse
  • Configure with default values
./discourse-setup
  • Tweak the default discourse configuration (optional)
nano /var/discourse/containers/app.yml
  • Get the local_discourse/app IMAGE ID (something like b6fa739cedf5)
docker images -a
  • Create your own tag for the image with the IMAGE ID
docker tag b6fa739cedf5 your-registry-url.com/namespace/image-name

docker push your-registry-url.com/namespace/image-name
  • On the server you’d like to create the discourse container, create a docker-compose.yaml file for your application (configure it to your specifications with something like…)
version: '3'

services:
  discourse:
    container_name: discourse_docker_custom
    image: 'your-registry-url.com/namespace/image-name:latest'
    restart: always
    shm_size: 512m
    command: /sbin/boot
    ports:
      - '80:80'
      - '443:443'
    volumes:
      - '/shared:/var/discourse/shared/standalone'
    environment:
      - DISCOURSE_DEVELOPER_EMAILS=admin@email-address.com
      - DISCOURSE_SMTP_AUTHENTICATION=none
      - DISCOURSE_SMTP_OPENSSL_VERIFY_MODE=none
      - DISCOURSE_SMTP_ADDRESS=localhost
      - DISCOURSE_SMTP_PORT=25
      - DISCOURSE_SMTP_USER_NAME=
      - DISCOURSE_SMTP_PASSWORD=
      - DISCOURSE_SMTP_ENABLE_START_TLS=true
      - DISCOURSE_HOSTNAME=your.server.com
    networks:
      - discourse

networks:
  discourse:
    driver: bridge

docker-compose up -d

…and you’ll be up and running.