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# Format a volume for data storage
#
# The pattern is to create an LVM volume group on the volume, with
# one logical volume set up. Snapshots can be taken of the data LV
# very quickly, allowing us to take backup copies without requiring
# long periods of downtime for the relevant services.
---
- name: ensure LVM metadata service is running
service: name=lvm2-lvmetad enabled=yes state=started
- name: LVM logical volume group on /dev/vdb
lvg: vg=vg0 pvs=/dev/vdb
- name: logical volume for {{ lv_name }}
lvol: vg=vg0 lv={{ lv_name }} size={{ lv_size }}
# This will NEVER overwrite an existing filesystem. Unless you add
# 'force=yes' to the arguments. So don't do that. See:
# http://docs.ansible.com/filesystem_module.html.
- name: ext4 filesystem on /dev/vg0/{{ lv_name }}
filesystem: fstype=ext4 dev=/dev/vg0/{{ lv_name }}
- name: mount {{ lv_name }} logical volume
mount: src=/dev/vg0/{{ lv_name }} name={{ mountpoint }} fstype=ext4 state=mounted
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