weave.yml

#cloud-config
coreos:
  update:
    ## NB: You should enable updates in production
    ## Terraform already takes care of static IPs
    ## in GCE, so it should be safe for weave nodes
    ## to rejoin after reboot
    reboot-strategy: 'off'
  etcd:
    # generate a new token for each unique cluster from https://discovery.etcd.io/new
    # uncomment the following line and replace it with your discovery URL
    # discovery: https://discovery.etcd.io/c421b0de60799f5a1dd63f6a90615808
    addr: $private_ipv4:4001
    peer-addr: $private_ipv4:7001
    # give etcd more time if it's under heavy load - prevent leader election thrashing
    peer-election-timeout: 2000
    # heartbeat interval should ideally be 1/4 or 1/5 of peer election timeout
    peer-heartbeat-interval: 500
  fleet:
    # We have to set the public_ip here so this works on Vagrant -- otherwise, Vagrant VMs
    # will all publish the same private IP. This is harmless for cloud providers.
    public-ip: $private_ipv4
    # allow etcd to slow down at times
    etcd_request_timeout: 3
  units:
  - name: etcd.service
    command: start
  - name: fleet.service
    command: start
  - name: format-ephemeral.service
    command: start
    content: |
      [Unit]
      Description=Formats the ephemeral drive
      [Service]
      Type=oneshot
      RemainAfterExit=yes
      ExecStart=/usr/sbin/wipefs -f /dev/sdc
      ExecStart=/usr/sbin/mkfs.btrfs -f /dev/sdc
  - name: var-lib-docker.mount
    command: start
    content: |
      [Unit]
      Description=Mount ephemeral to /var/lib/docker
      Requires=format-ephemeral.service
      After=format-ephemeral.service
      Before=docker.service
      [Mount]
      What=/dev/sdc
      Where=/var/lib/docker
      Type=btrfs
  - name: 10-weave.network
    runtime: false
    content: |
      [Match]
      Type=bridge
      Name=weave*
      [Network]
  - name: weave.service
    command: start
    content: |
      [Unit]
      After=install-weave.service
      Description=Weave Network
      Documentation=http://zettio.github.io/weave/
      Requires=install-weave.service
      [Service]
      EnvironmentFile=/etc/weave.env
      ExecStartPre=/opt/bin/weave launch -password ${WEAVE_LAUNCH_PASSWORD} $WEAVE_LAUNCH_KNOW_NODES
      ExecStartPre=/opt/bin/weave launch-dns $WEAVE_LAUNCH_DNS_ARGS -debug
      ExecStart=/usr/bin/docker logs -f weave
      SuccessExitStatus=2
      ExecStop=/opt/bin/weave stop
      ExecStop=/opt/bin/weave stop-dns
  - name: install-weave.service
    command: start
    enable: true
    content: |
      [Unit]
      After=pre-fetch-container-images.service
      After=network-online.target
      After=docker.service
      Description=Install Weave
      Documentation=http://zettio.github.io/weave/
      Requires=pre-fetch-container-images.service
      Requires=network-online.target
      Requires=docker.service
      [Service]
      Type=oneshot
      RemainAfterExit=yes
      ExecStartPre=/usr/bin/wget -N -P /opt/bin \
          https://raw.github.com/zettio/weave/master/weave
      ExecStartPre=/usr/bin/chmod +x /opt/bin/weave
      ExecStart=/bin/echo Weave Installed
  - name: pre-fetch-container-images.service
    command: start
    enable: true
    content: |
      [Unit]
      After=docker.service
      Requires=docker.service
      [Service]
      EnvironmentFile=/etc/pre-fetch-container-images.env
      Type=oneshot
      RemainAfterExit=yes
      ExecStart=/bin/sh -c 'for i in $PRE_FETCH_CONTAINER_IMAGES; do /usr/bin/docker pull $i; done'
write_files:
  - path: /etc/pre-fetch-container-images.env
    permissions: 0644
    owner: root
    content: |
      PRE_FETCH_CONTAINER_IMAGES="\
        zettio/weave:latest \
        zettio/weavedns:latest \
      "