#cloud-config
write_files:
  - path: /etc/kontena-agent.env
    permissions: 0600
    owner: root
    content: |
      KONTENA_URI="<%= master_uri %>"
      KONTENA_TOKEN="<%= grid_token %>"
      KONTENA_PEER_INTERFACE=<%= peer_interface %>
      KONTENA_VERSION=<%= version %>
  - path: /etc/systemd/system/docker.service.d/50-kontena.conf
    content: |
        [Service]
        Environment='DOCKER_OPTS=--insecure-registry="<%= grid_subnet %>" --bip="<%= docker_bip %>"'
  - path: /etc/sysctl.d/99-inotify.conf
    owner: root
    permissions: 0644
    content: |
      fs.inotify.max_user_instances = 8192
coreos:
  units:
    - name: 50-docker.network
      mask: true
    - name: 50-docker-veth.network
      mask: true
    - name: zz-default.network
      content: |
        # default should not match virtual Docker/weave bridge/veth network interfaces
        [Match]
        Name=<%= match_default_network_name %>

        [Network]
        DHCP=yes
        <% dns_servers.each do |dns| %>DNS=<%= dns %>
        <% end %>
        Domains=kontena.local

        [DHCP]
        UseMTU=true
        UseDNS=false

    - name: kontena-agent.service
      command: start
      enable: true
      content: |
        [Unit]
        Description=kontena-agent
        After=network-online.target
        After=docker.service
        Description=Kontena Agent
        Documentation=http://www.kontena.io/
        Requires=network-online.target
        Requires=docker.service

        [Service]
        Restart=always
        RestartSec=5
        EnvironmentFile=/etc/kontena-agent.env
        ExecStartPre=-/usr/bin/docker stop kontena-agent
        ExecStartPre=-/usr/bin/docker rm kontena-agent
        ExecStartPre=/usr/bin/docker pull kontena/agent:${KONTENA_VERSION}
        ExecStart=/usr/bin/docker run --name kontena-agent \
            -e KONTENA_URI=${KONTENA_URI} \
            -e KONTENA_TOKEN=${KONTENA_TOKEN} \
            -e KONTENA_PEER_INTERFACE=${KONTENA_PEER_INTERFACE} \
            -v=/var/run/docker.sock:/var/run/docker.sock \
            -v=/etc/kontena-agent.env:/etc/kontena.env \
            --net=host \
            kontena/agent:${KONTENA_VERSION}