#cloud-config

# Sources:
# - https://github.com/trajano/terraform-docker-swarm-aws/blob/master/common.cloud-config

# Add the official Docker repository.
#
# Got from the official installation guide at
# https://docs.docker.com/engine/install/rhel/#install-using-the-repository :
#   yum install -y yum-utils && \
#   yum-config-manager --add-repo \
#     https://download.docker.com/linux/rhel/docker-ce.repo && \
#   cat /etc/yum.repos.d/docker-ce.repo
#
# Sources:
# - https://cloudinit.readthedocs.io/en/latest/topics/modules.html#yum-add-repo
# - https://cloudinit.readthedocs.io/en/latest/topics/examples.html#adding-a-yum-repository
yum_repos:
  docker-ce:
    name: Docker CE Stable - $basearch
    enabled: true
    baseurl: https://download.docker.com/linux/rhel/$releasever/$basearch/stable
    priority: 1
    gpgcheck: true
    gpgkey: https://download.docker.com/linux/rhel/gpg

# Install required packages.
# This will *always* update the list of packages, regardless of the value of the
# 'package_update' setting.
#
# docker-ce already depends on 'docker-ce-cli' and 'containerd.io'
#
# Sources:
# - https://cloudinit.readthedocs.io/en/latest/topics/modules.html#package-update-upgrade-install
# - https://cloudinit.readthedocs.io/en/latest/topics/examples.html#install-arbitrary-packages
packages:
  - docker-ce

# Enable and start the service after installation
runcmd:
  - systemctl daemon-reload
  - systemctl enable --now docker.service