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Setup and initialise a RAID10 array of EC2 EBS volumes using an Ansible playbook
- action: ec2_facts
- apt: pkg=lvm2 state=present
- apt: pkg=mdadm state=present
- pip: name=boto state=latest
- ec2_vol: instance="{{ hostvars[inventory_hostname]['ansible_ec2_instance-id'] }}"
device_name="{{ item }}"
region="{{ ansible_ec2_placement_region }}"
zone="{{ ansible_ec2_placement_availability_zone }}"
- /dev/sdf
- /dev/sdg
- /dev/sdh
- /dev/sdi
- /dev/sdj
- /dev/sdk
- /dev/sdl
- /dev/sdm
- name: check for /dev/md0
shell: "mdadm -D /dev/md0"
ignore_errors: yes
register: mdadm_check
- name: initialise /dev/md0
shell: "mdadm -v --create /dev/md0 --level=raid10 --raid-devices=8 /dev/xvdf /dev/xvdg /dev/xvdh /dev/xvdi /dev/xvdj /dev/xvdk /dev/xvdl /dev/xvdm"
when: mdadm_check.rc != 0
- name: wait for /dev/md0 to come online
shell: "mdadm --wait /dev/md0"
when: mdadm_check.rc != 0
- name: volume group
lvg: vg=vg0 pvs=/dev/md0
- lvol: vg=vg0 lv=data size=90%VG
- lvol: vg=vg0 lv=log size=5%VG
- lvol: vg=vg0 lv=journal size=5%VG
- filesystem: fstype=ext4 dev=/dev/vg0/data
- filesystem: fstype=ext4 dev=/dev/vg0/log
- filesystem: fstype=ext4 dev=/dev/vg0/journal
- file: path=/data state=directory owner=mongodb group=mongodb mode=0755
- file: path=/log state=directory owner=mongodb group=mongodb mode=0755
- file: path=/journal state=directory owner=mongodb group=mongodb mode=0755
- mount: name=/data src=/dev/vg0/data fstype=ext4 opts=defaults,auto,noatime,nodiratime,noexec,relatime state=mounted
- mount: name=/log src=/dev/vg0/log fstype=ext4 opts=defaults,auto,noatime,nodiratime,noexec,relatime state=mounted
- mount: name=/journal src=/dev/vg0/journal fstype=ext4 opts=defaults,auto,noatime,nodiratime,noexec,relatime state=mounted
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