A sample for managing containers on ubuntu using ansible

main.yml

- name: prepare calico-node upstart service file
  template: src=roles/docker/templates/upstart-docker-instance.j2.j2 dest="/etc/init/{{ item.service_name }}.conf"
  tags:
  - service
  - calico
  with_items:
  - service_name: calico-node
    docker_name: calico-node
    docker_run: >
      /usr/bin/docker run --rm \
        --name=calico-node \
        --net=host \
        --privileged \
        --name=calico-node \
        -e HOSTNAME={{ ansible_hostname }} \
        -e CALICO_NETWORKING=true \
        -e ETCD_AUTHORITY={{ host_ip }}:2379 \
        -e ETCD_SCHEME=http \
        -e IP={{ host_ip }} \
        -v /var/log/calico:/var/log/calico \
        -v /lib/modules:/lib/modules \
        -v /var/run/calico:/var/run/calico \
        calico/node:v0.18.0

upstart-docker-instance.j2

description "{{ item.service_name }} container"
start on started docker
respawn
pre-start script
  # node containers fail to auto-start on docker service restart without this
  FILE=/var/run/docker.sock
  while [ ! -S $FILE ] ; do
    inotifywait -t 2 -e create $(dirname $FILE)
  done
  docker rm -f {{ item.docker_name }} &>/dev/null || :
end script

script
  exec {{ item.docker_run }}
end script