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trixie_upgrade.yaml

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+---
+
+# lifted from here
+# https://gist.github.com/yorickdowne/3cecc7b424ce241b173510e36754af47
+
+- name: Trixie Upgrade Pipeline
+  hosts: all
+  become: yes
+
+  tasks:
+
+  - name: Get distribution version
+    setup:
+      filter: ansible_distribution*
+
+  - name: Skip if not Debian 12
+    meta: end_host
+    when: ansible_distribution != 'Debian' or ansible_distribution_major_version != '12'
+
+  - name: apt clean
+    apt:
+      clean: yes
+
+  - name: Get filesystem facts
+    setup:
+      filter: ansible_mounts
+
+  - name: Fail if free space on / is below 5 GiB
+    ansible.builtin.assert:
+      that:
+        - item.size_available > (5 * 1024 * 1024 * 1024)
+      fail_msg: "Free disk space on {{ item.mount }} is below 5 GiB"
+    loop: "{{ ansible_mounts }}"
+    when: item.mount == "/"
+
+  - name: All apt packages up to date
+    apt:
+      upgrade: dist
+      update_cache: yes
+
+  - name: apt autoremove
+    apt:
+      autoremove: yes
+
+  - name: apt clean
+    apt:
+      clean: yes
+
+  - name: Check if reboot required
+    ansible.builtin.stat:
+      path: /run/reboot-required
+      get_checksum: no
+    register: reboot_required_file
+
+  - name: Reboot if required
+    ansible.builtin.reboot:
+      msg: "Reboot initiated by Ansible"
+      connect_timeout: 5
+      reboot_timeout: 600
+      pre_reboot_delay: 0
+      post_reboot_delay: 60
+      test_command: whoami
+    when: reboot_required_file.stat.exists
+
+  - name: Switch OS from bookworm to trixie
+    ansible.builtin.replace:
+      path: /etc/apt/sources.list
+      regexp: 'bookworm'
+      replace: 'trixie'
+
+  - name: Find all 3rd-party repos
+    ansible.builtin.find:
+      paths: /etc/apt/sources.list.d
+      patterns: '*'
+      recurse: no
+    register: third_party_repos
+
+  - name: Switch 3rd-party repos from bookworm to trixie
+    ansible.builtin.replace:
+      path: "{{ item.path }}"
+      regexp: 'bookworm'
+      replace: 'trixie'
+    loop: "{{ third_party_repos.files }}"
+    loop_control:
+      label: "{{ item.path }}" 
+
+  - name: Use apt to move to trixie
+    apt:
+      upgrade: dist
+      update_cache: yes
+
+  - name: Get distribution version
+    setup:
+      filter: ansible_distribution*
+
+  - name: Fail if not Debian 13
+    assert:
+      that:
+        - ansible_distribution_major_version == '13'
+      fail_msg: "Upgrade to Debian 13 failed"
+
+  - name: apt autoremove
+    apt:
+      autoremove: yes
+
+  - name: apt clean
+    apt:
+      clean: yes
+
+  - name: Reboot on trixie
+    ansible.builtin.reboot:
+      msg: "Reboot initiated by Ansible"
+      connect_timeout: 5
+      reboot_timeout: 600
+      pre_reboot_delay: 0
+      post_reboot_delay: 60
+      test_command: whoami
+
+  - name: Modernize apt sources
+    ansible.builtin.command:
+      cmd: apt -y modernize-sources
+
+...