userdata.txt

#cloud-config

write_files:
-   encoding: b64
    content: ${prepare_concourse_keys}
    path: /home/core/prepare_concourse_keys.sh
    permissions: '0744'

coreos:
  units:
    - name: swap.service
      command: start
      content: |
        [Unit]
        Description=Turn on swap

        [Service]
        Type=oneshot
        RemainAfterExit=true
        ExecStartPre=/bin/bash -c "\
          rm -f 2GiB.swap && \
          fallocate -l 2G 2GiB.swap && \
          chmod 600 2GiB.swap && \
          mkswap 2GiB.swap && \
          losetup -f 2GiB.swap"
        ExecStart=/usr/bin/sh -c "/sbin/swapon $(/usr/sbin/losetup -j 2GiB.swap | /usr/bin/cut -d : -f 1)"
        ExecStop=/usr/bin/sh -c "/sbin/swapoff $(/usr/sbin/losetup -j 2GiB.swap | /usr/bin/cut -d : -f 1)"
        ExecStopPost=/usr/bin/sh -c "/usr/sbin/losetup -d $(/usr/sbin/losetup -j 2GiB.swap | /usr/bin/cut -d : -f 1)"

        [Install]
        WantedBy=local.target
    - name: concourse_web.service
      enable: true
      command: start
      content: |
        [Unit]
        Description=Start Concourse Web
        After=docker.service
        Requires=docker.service

        [Service]
        Restart=always
        ExecStartPre=-/usr/bin/docker stop web
        ExecStartPre=-/usr/bin/docker rm web
        ExecStartPre=-/usr/bin/docker pull concourse/concourse:${concourse_version}
        ExecStartPre=-/usr/bin/bash /home/core/prepare_concourse_keys.sh
        ExecStart=/usr/bin/docker run --name web -h web -v '/home/core/keys/web:/concourse-keys' -e CONCOURSE_EXTERNAL_URL='${external_name}' -e CONCOURSE_GARDEN_DNS_SERVER='8.8.8.8' -e CONCOURSE_BASIC_AUTH_USERNAME='${concourse_username}' -e CONCOURSE_BASIC_AUTH_PASSWORD='${concourse_password}' -e CONCOURSE_POSTGRES_DATA_SOURCE='postgres://${postgres_username}:${postgres_password}@${postgres_endpoint}/concourse?sslmode=disable' --restart=always -p 8080:8080 concourse/concourse:${concourse_version} web

        [Install]
        WantedBy=local.target
    - name: concourse_worker.service
      enable: true
      command: start
      content: |
        [Unit]
        Description=Start Concourse worker
        After=concourse_web.service
        Requires=concourse_web.service

        [Service]
        Restart=always
        ExecStartPre=-/usr/bin/docker stop worker
        ExecStartPre=-/usr/bin/docker rm worker
        ExecStart=/usr/bin/docker run --name worker --link='web' --privileged -v '/home/core/keys/worker:/concourse-keys' -e CONCOURSE_GARDEN_DNS_SERVER='8.8.8.8' -e CONCOURSE_TSA_HOST='web:2222' --restart=always concourse/concourse:${concourse_version} worker
        [Install]
        WantedBy=local.target
    - name: docker.service
      enable: true