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Added rhev-1tb-ssd.yml to the tools dir
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This playbook Is for creating /vm partition where the RHEV virtual machines will reside
And also for creating a 50G swap partition

Signed-off-by: Adam Kraitman <[email protected]>
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akraitman committed Aug 22, 2019
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---
### This playbook is useful for setting up a baremetal hosts (irvingi or senta)
### as a RHEL Hypervisor to serve Jenkins VMs. Expects a RHEL7 image
### already subscribed to RHSM and had ceph-cm-ansible common role
### ran against it.

- hosts:
- irvingi
# - senta
vars:
# Default to configure /vms disk
configure_disk: true
swap_volume: /dev/sdb1
swap_disk: /dev/sdb
swappiness: 1
vars_prompt:
# Forcefully reconfigure disk even if it's already mounted
- name: "force_configure_disk"
prompt: "\nWARNING: You will lose data if you enter \"y\"\nDo you want to forcefully reconfigure the VMs disk even if it's already set up? (y|n)"
default: "n"
become: true
tasks:

- name: Enable rhev-mgmt repo
command: "subscription-manager repos --enable=rhel-7-server-rhev-mgmt-agent-rpms"

- name: Install packages
yum:
name: "{{ item }}"
state: latest
enablerepo: epel
with_items:
- gdisk
- parted
- vdsm

- name: Find 1TB SSD
set_fact:
vm_ssd: "{{ item.key }}"
with_dict: "{{ ansible_devices }}"
when: item.value.model == "Samsung SSD 850"

# This is where the RHEV virtual machines will reside
- name: Make /vms dir and set permissions
file:
state: directory
path: /vms
owner: vdsm
group: kvm

# Unmount /vms so configure_disk is set to true
- name: Unmount 1TB SSD if we're forcefully reconfiguring
mount:
name: /vms
state: unmounted
when: force_configure_disk == "y"

- name: Update ansible_mounts
setup:
filter: ansible_mounts
when: force_configure_disk == "y"

# Check if the 1TB SSD is already mounted at the /vms mountpoint.
# This is the ONLY way the playbook checks if the host is already configured
- name: Check if /vms already mounted
set_fact:
configure_disk: false
with_items: "{{ ansible_mounts }}"
when: '"/vms" in item.mount'

- debug: var=configure_disk

- name: Zap 1TB SSD
command: sgdisk -Z "/dev/{{ vm_ssd }}"
when: configure_disk == true

- name: Create partition table
command: "parted -s /dev/{{ vm_ssd }} mktable msdos"
when: configure_disk == true

- name: Create partition
command: "parted /dev/{{ vm_ssd }} unit '%' mkpart primary 0 100"
when: configure_disk == true

- name: Create filesystem
filesystem:
fstype: xfs
dev: "/dev/{{ vm_ssd }}1"
force: yes
when: configure_disk == true

- name: Find VM partition UUID
command: "lsblk -n -o uuid /dev/{{ vm_ssd }}1"
register: vm_uuid

- name: Mount 1TB SSD to /vms
mount:
name: /vms
src: "UUID={{ vm_uuid.stdout }}"
fstype: xfs
opts: defaults
state: mounted

- name: Copy RHEV SSH key to root's authorized_keys
authorized_key:
user: root
key: http://mgr01.front.sepia.ceph.com/engine.ssh.key.txt

- name: check that sdb exist
set_fact:
sdb_disk: "{{ ansible_devices.keys() | select('match','sdb') | map('regex_replace','^','dev/') | list }}"
tags:
- create.swap

- name: Check if a swap partition exist
shell: cat /proc/swaps | tail -1
register: swap_exist
check_mode: no
tags:
- create.swap

- name: Run multipath -v3
shell: multipath -v3
when:
- swap_exist.stdout.find('dev') == -1
- sdb_disk[0].find('dev/sdb') != -1
tags:
- create.swap

- name: Create a new primary partition on /dev/sdb
parted:
device: /dev/sdb
part_type: primary
number: 1
state: present
when:
- swap_exist.stdout.find('dev') == -1
- sdb_disk[0].find('dev/sdb') != -1
tags:
- create.swap

- name: Create swap partition
command: mkswap -L swap1 {{swap_volume}}
when:
- swap_exist.stdout.find('dev') == -1
- sdb_disk[0].find('dev/sdb') != -1
tags:
- create.swap

- name: Write swap entry in fstab
mount: name=none
src={{swap_volume}}
fstype=swap
opts=sw
passno=0
dump=0
state=present
when:
- swap_exist.stdout.find('dev') == -1
- sdb_disk[0].find('dev/sdb') != -1
tags:
- create.swap

- name: Turn on swap
command: swapon -a
when:
- swap_exist.stdout.find('dev') == -1
- sdb_disk[0].find('dev/sdb') != -1
tags:
- create.swap

- name: Restart mulltipath service
systemd:
state: restarted
name: multipathd.service
when:
- swap_exist.stdout.find('dev') == -1
- sdb_disk[0].find('dev/sdb') != -1
tags:
- create.swap

- name: Set swappiness
sysctl:
name: vm.swappiness
value: "{{swappiness}}"
when:
- swap_exist.stdout.find('dev') == -1
- sdb_disk[0].find('dev/sdb') != -1
tags:
- create.swap

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