---

  - name: Install Docker
    yum: name=docker state=installed
    tags: rpm

  - name: Enable insecure registries
    lineinfile: state=present dest=/etc/sysconfig/docker regexp="^INSECURE_REGISTRY=" line="INSECURE_REGISTRY='--insecure-registry 172.30.0.0/16'" insertafter="^# INSECURE_REGISTRY="

#
# TODO : On the master nodes only ?
#

  - name: Check if sdb is empty
    command: sfdisk -d /dev/sdb
    register: sfdisk
    failed_when: sfdisk.stdout != "" or sfdisk.stderr != "" # sdb is empty
    tags: storage

  - name: Configure docker-storage-setup
    template: dest=/etc/sysconfig/docker-storage-setup src=docker-storage-setup
    tags: storage

  - name: Run docker-storage-setup
    command: docker-storage-setup
    tags: storage

  - name: Start Docker
    service: name=docker state=started enabled=yes