vm-restore-snapshots.yml

# execution:
# $ ansible-playbook vm-restore-snapshots.yml -e 'vmVars=iad.lab/mini-cns-vars.yml' -e 'snapDescription="Before *"'

---
- hosts: localhost
  gather_facts: yes
  vars_files:
  - "{{ ansible_domain }}/rhvm-vault.yml"

  tasks:
    - assert:
        that: snapDescription is defined
        msg: You must provide the common snapshot description with -e 'snapDescription="something*"'

    - name: Load VM vars
      include_vars: "{{ vmVars }}"

    - name: Login to RHV
      ovirt_auth:
        url: "{{ rhvurl }}"
        insecure: yes
        username: "{{ rhvuser }}"
        password: "{{ rhvpass }}"

    - name: Query snapshot IDs
      ovirt_snapshot_facts:
        auth: "{{ ovirt_auth }}"
        vm: "{{ item.key }}"
        description: "{{ snapDescription }}"
      with_dict: "{{ vms }}" # See home.lab/ocp-cns-vars.yml
      register: myBigFatBlob

#TODO: Add some logic here to check for returned results, and fail if no results found

#    - debug: var=myBigFatBlob
#    - debug: var=myBigFatBlob.results
#    - debug: var=myBigFatBlob.results[0].ansible_facts.ovirt_snapshots[0].vm.name
#    - debug: var=myBigFatBlob.results[0].ansible_facts.ovirt_snapshots[0].description
#    - debug: var=myBigFatBlob.results[0].ansible_facts.ovirt_snapshots[0].id

# https://stackoverflow.com/questions/35605603/using-ansible-set-fact-to-create-a-dictionary-from-register-results
    - name: Create a new array from the query results
      set_fact:
        mySnaps: "{{ mySnaps|default({}) | combine( {item.ansible_facts.ovirt_snapshots[0].vm.name: item.ansible_facts.ovirt_snapshots[0].id} ) }}"
      with_items: "{{ myBigFatBlob.results }}"
      no_log: true
    - debug: var=mySnaps

# https://stackoverflow.com/questions/35605603/using-ansible-set-fact-to-create-a-dictionary-from-register-results
    - name: Create a list of dicts instead as another new variable
      set_fact:
        mySnaps2: "{{ mySnaps2|default([]) + [ {'name': item.ansible_facts.ovirt_snapshots[0].vm.name, 'id': item.ansible_facts.ovirt_snapshots[0].id} ] }}"
      with_items: "{{ myBigFatBlob.results }}"
      no_log: true
    - debug: var=mySnaps2

    - name: Make sure the VMs are stopped
      ovirt_vm:
        auth: "{{ ovirt_auth }}"
        name: "{{ item.name }}"
        state: stopped
      loop: "{{ mySnaps2}}"

    - name: Restore to the chosen snapshot
      ovirt_snapshot:
        auth: "{{ ovirt_auth }}"
        state: restore
        vm_name: "{{ item.name }}"
        snapshot_id: "{{ item.id }}"
      loop: "{{ mySnaps2}}"

    - name: Startup the VMs
      ovirt_vm:
        auth: "{{ ovirt_auth }}"
        name: "{{ item.name }}"
        state: running
      loop: "{{ mySnaps2}}"

    - name: Cleanup RHV auth token
      ovirt_auth:
        ovirt_auth: "{{ ovirt_auth }}"
        state: absent