A role that installs Docker CE on an EL7, Debian, or, Ubuntu server and, optionally, creates an LVM volume for /var/lib/docker.
No special requirements. Note that this role requires root access, so either run it in a playbook with a global become: yes, or invoke the role in your playbook like:
- hosts: docker
roles:
- role: seancallaway.docker_ce_setup
become: yesIf you have an extra disk attacked to the machine on which this role will install Docker CE, you can have this
role configure LVM on the disk and mount it as /var/lib/docker in order to utilize the overlay/overlay2 storage
driver. To do this, specify the device to use, as seen in the example below:
docker_volume_device: /dev/sdcAvailable variables are listed below, along with default values (see defaults/main.yml):
docker_volume_fstype: xfs
docker_volume_lvm_vg: vg_docker
docker_volume_lvm_lv: lv_var_lib_dockerdocker_volume_fstype must be a fstype supported by the
filesystem and
mount modules.
docker_volume_lvm_vg is the name of the volume group in which the Docker logical volume should be created.
docker_volume_lvm_lv is the name of the logical volume that will be created.
None.
Including an example of how to use your role (for instance, with variables passed in as parameters) is always nice for users too:
- hosts: docker-servers
become: yes
vars:
docker_volume_device: /dev/sdc
roles:
- role: seancallaway.docker_ce_setupMIT