snapshot-create.yml

- name: Cleanup snapshot first
  ansible.builtin.import_playbook: snapshot-delete.yml

- name: Create new snapshot
  hosts: snapshotted
  become: true
  tasks:
    - name: Load timeshift.json
      ansible.builtin.slurp:
        src: /etc/timeshift/timeshift.json
      register: imported_json

    - name: Include all user files (so they will be restored)
      ansible.builtin.set_fact:
        imported_json: "{{ imported_json.content | b64decode | from_json | combine({'exclude': ['+ /home/user/**', '+ /root/**']}) }}"

    - name: Write timeshift.json
      ansible.builtin.copy:
        content: "{{ imported_json | to_nice_json }}"
        dest: /etc/timeshift/timeshift.json
        owner: root
        group: root
        mode: "0644"

    - name: Create snapshot
      ansible.builtin.command:
        cmd: "timeshift --scripted --snapshot-device /dev/mapper/{{ inventory_hostname }}--vg-root --create --comment by-ansible --yes"
        creates: /timeshift/snapshots/by-ansible

    - name: List new snapshots
      ansible.builtin.shell:
        cmd: ls -td1 *
        chdir: /timeshift/snapshots
        executable: /bin/bash
      changed_when: false
      register: new_snapshots

    - name: Move snapshot
      ansible.builtin.shell:
        cmd: mv {{ new_snapshots["stdout_lines"][0].strip() }} by-ansible
        chdir: /timeshift/snapshots
        creates: /timeshift/snapshots/by-ansible
        executable: /bin/bash
      when: new_snapshots["stdout_lines"] | length > 0