Rethink-DB CoreOS cloud-init

rethinkdb.cloud-init

#cloud-config
coreos:
  units:
    - name: rethinkdb-create-fleet-units.service
      command: start
      content: |
        [Unit]
        After=docker.service
        ConditionFileIsExecutable=/srv/rethinkdb-create-fleet-units.sh
        ConditionFileNotEmpty=/srv/rethinkdb@.service

        [Service]
        ExecStart=/srv/rethinkdb-create-fleet-units.sh
        RemainAfterExit=no
        Type=oneshot
write_files:
  - path: /srv/rethinkdb-create-fleet-units.sh
    permissions: '0755'
    owner: root
    content: |
      #!/bin/bash
      source /etc/environment
      set -ex

      mkdir -p /etc/ecs
      cp /srv/rethinkdb-discovery@.service /srv/rethinkdb-discovery@$(hostname).service
      cp /srv/rethinkdb@.service /srv/rethinkdb@$(hostname).service
      sed -i -e "s/%i/$(hostname)/" /srv/rethinkdb@$(hostname).service /srv/rethinkdb-discovery@$(hostname).service
      ( echo -n MachineID=; cat /etc/machine-id ) >> /srv/rethinkdb-discovery@$(hostname).service
      ( echo -n MachineID=; cat /etc/machine-id ) >> /srv/rethinkdb@$(hostname).service
      /usr/bin/fleetctl start /srv/rethinkdb-discovery@$(hostname).service
      /usr/bin/fleetctl start /srv/rethinkdb@$(hostname).service
  - path: /srv/rethinkdb-discovery@.service
    permissions: 0644
    owner: root
    content: |
      [Unit]
      Description=Announce rethinkdb-discovery@%i

      [Service]
      EnvironmentFile=/etc/environment
      ExecStart=/bin/sh -c "while true; do etcdctl set /announce/services/rethinkdb%i ${COREOS_PRIVATE_IPV4} --ttl 60; sleep 45; done"
      ExecStop=/usr/bin/etcdctl rm /announce/services/rethinkdb%i

      [X-Fleet]
  - path: /srv/rethinkdb@.service
    permissions: 0644
    owner: root
    content: |
      [Unit]
      Description=Run the rethinkdb@%i database service
      After=docker.service
      BindsTo=rethinkdb-discovery@%i.service

      [Service]
      EnvironmentFile=/etc/environment
      TimeoutStartSec=0
      ExecStartPre=-/usr/bin/docker kill rethinkdb
      ExecStartPre=-/usr/bin/docker rm rethinkdb
      ExecStartPre=-/usr/bin/mkdir -p /data/rethinkdb
      ExecStartPre=/usr/bin/docker pull rethinkdb
      ExecStart=/bin/sh -c '/usr/bin/docker run --name rethinkdb     \
          -p ${COREOS_PRIVATE_IPV4}:18080:18080                      \
          -p ${COREOS_PRIVATE_IPV4}:28015:28015                      \
          -p ${COREOS_PRIVATE_IPV4}:29015:29015                      \
          -v /data/rethinkdb/:/data/                                 \
          rethinkdb rethinkdb --bind all                             \
          --http-port 18080                                          \
          --canonical-address ${COREOS_PRIVATE_IPV4}                 \
          $(/usr/bin/etcdctl ls /announce/services |                 \
              xargs -I {} /usr/bin/etcdctl get {} |                  \
              sed s/^/"--join "/ | sed s/$/":29015"/ |               \
              tr "\n" " ")'

      ExecStop=/usr/bin/docker stop rethinkdb

      [X-Fleet]