nixos-servers/playbooks/build-and-deploy-template.yml

---
- name: Build and deploy NixOS Proxmox template
  hosts: localhost
  gather_facts: false

  vars:
    template_name: "template2"
    nixos_config: "template2"
    proxmox_node: "pve1.home.2rjus.net"  # Change to your Proxmox node name
    proxmox_host: "pve1.home.2rjus.net"  # Change to your Proxmox host
    template_vmid: 9000  # Template VM ID
    storage: "local-zfs"

  tasks:
    - name: Build NixOS image
      ansible.builtin.command:
        cmd: "nixos-rebuild build-image --image-variant proxmox --flake .#template2"
        chdir: "{{ playbook_dir }}/.."
      register: build_result
      changed_when: true

    - name: Find built image file
      ansible.builtin.find:
        paths: "{{ playbook_dir}}/../result"
        patterns: "*.vma.zst"
        recurse: true
      register: image_files

    - name: Fail if no image found
      ansible.builtin.fail:
        msg: "No QCOW2 image found in build output"
      when: image_files.matched == 0

    - name: Set image path
      ansible.builtin.set_fact:
        image_path: "{{ image_files.files[0].path }}"

    - name: Extract image filename
      ansible.builtin.set_fact:
        image_filename: "{{ image_path | basename }}"

    - name: Display image info
      ansible.builtin.debug:
        msg: "Built image: {{ image_path }} ({{ image_filename }})"

- name: Deploy template to Proxmox
  hosts: proxmox
  gather_facts: false

  vars:
    template_name: "template2"
    template_vmid: 9000
    storage: "local-zfs"

  tasks:
    - name: Get image path and filename from localhost
      ansible.builtin.set_fact:
        image_path: "{{ hostvars['localhost']['image_path'] }}"
        image_filename: "{{ hostvars['localhost']['image_filename'] }}"

    - name: Set destination path
      ansible.builtin.set_fact:
        image_dest: "/var/lib/vz/dump/{{ image_filename }}"

    - name: Copy image to Proxmox
      ansible.builtin.copy:
        src: "{{ image_path }}"
        dest: "{{ image_dest }}"
        mode: '0644'

    - name: Check if template VM already exists
      ansible.builtin.command:
        cmd: "qm status {{ template_vmid }}"
      register: vm_status
      failed_when: false
      changed_when: false

    - name: Destroy existing template VM if it exists
      ansible.builtin.command:
        cmd: "qm destroy {{ template_vmid }} --purge"
      when: vm_status.rc == 0
      changed_when: true

    - name: Import image
      ansible.builtin.command:
        cmd: "qmrestore {{ image_dest }} {{ template_vmid }}"
      changed_when: true

    - name: Convert VM to template
      ansible.builtin.command:
        cmd: "qm template {{ template_vmid }}"
      changed_when: true

    - name: Clean up uploaded image
      ansible.builtin.file:
        path: "{{ image_dest }}"
        state: absent

    - name: Display success message
      ansible.builtin.debug:
        msg: "Template VM {{ template_vmid }} created successfully on {{ storage }}"

- name: Update Terraform template name
  hosts: localhost
  gather_facts: false

  vars:
    terraform_dir: "{{ playbook_dir }}/../terraform"

  tasks:
    - name: Get image filename from earlier play
      ansible.builtin.set_fact:
        image_filename: "{{ hostvars['localhost']['image_filename'] }}"

    - name: Extract template name from image filename
      ansible.builtin.set_fact:
        new_template_name: "{{ image_filename | regex_replace('\\.vma\\.zst$', '') | regex_replace('^vzdump-qemu-', '') }}"

    - name: Read current Terraform variables file
      ansible.builtin.slurp:
        src: "{{ terraform_dir }}/variables.tf"
      register: variables_tf_content

    - name: Extract current template name from variables.tf
      ansible.builtin.set_fact:
        current_template_name: "{{ (variables_tf_content.content | b64decode) | regex_search('variable \"default_template_name\"[^}]+default\\s*=\\s*\"([^\"]+)\"', '\\1') | first }}"

    - name: Check if template name has changed
      ansible.builtin.set_fact:
        template_name_changed: "{{ current_template_name != new_template_name }}"

    - name: Display template name status
      ansible.builtin.debug:
        msg: "Template name: {{ current_template_name }} -> {{ new_template_name }} ({{ 'changed' if template_name_changed else 'unchanged' }})"

    - name: Update default_template_name in variables.tf
      ansible.builtin.replace:
        path: "{{ terraform_dir }}/variables.tf"
        regexp: '(variable "default_template_name"[^}]+default\s*=\s*)"[^"]+"'
        replace: '\1"{{ new_template_name }}"'
      when: template_name_changed

    - name: Display update result
      ansible.builtin.debug:
        msg: "Updated terraform/variables.tf with new template name: {{ new_template_name }}"
      when: template_name_changed