dotfiles/playbook.yml

- name: configure system
  hosts: localhost
  connection: local
  become: false
  tasks:
    - name: read machine-specific variables
      include_vars:
        file: _machines/{{ ansible_hostname }}.yml
        name: machine
      tags:
        - always

    - name: read variables
      include_vars:
        file: variables.yml
      tags:
        - always

    - set_fact:
        distro: "{{ ansible_distribution|lower }}"
      tags:
        - always

    - name: check for valid distro
      assert:
        that: distro in ('archlinux')

    - block:
      - name: install ansible requirements
        package:
          name: "{{ packages[distro] }}"
          state: present
        become: true
        vars:
          packages:
            archlinux:
              - python-jmespath

    - block:
      - name: enable multilib repository
        blockinfile:
          path: /etc/pacman.conf
          block: |
            [multilib]
            Include = /etc/pacman.d/mirrorlist
          marker: "# {mark} ANSIBLE MANAGED multilib"
        become: true

      - name: enable parallel download
        blockinfile:
          path: /etc/pacman.conf
          insertafter: '\[options\]'
          block: |
            ParallelDownloads = 5
          marker: "# {mark} ANSIBLE MANAGED parallel_download"
        become: true

      - block:
        - name: upgrade system
          pacman:
            upgrade: true
            update_cache: true
          become: true
          changed_when: false

        tags: [system-update]

      - name: install pacman-contrib for paccache
        package:
          name: pacman-contrib
          state: present
        become: true

      - block:
        - name: install pacman cache clean service
          copy:
            dest: /etc/systemd/system/pacman-cache-cleanup.service
            owner: root
            group: root
            mode: '0644'
            content: |
              [Service]
              Type=oneshot
              ExecStart=/bin/sh -c '/usr/bin/paccache -rk1 && /usr/bin/paccache -ruk0'
              RemainAfterExit=true
          become: true

        - name: install pacman cache clean timer
          copy:
            dest: /etc/systemd/system/pacman-cache-cleanup.timer
            owner: root
            group: root
            mode: '0644'
            content: |
              [Timer]
              OnCalendar=daily
          become: true

        - name: enable pacman cache clean timer
          systemd:
            name: pacman-cache-cleanup.timer
            enabled: true
            state: started
            daemon_reload: true
          become: true
        tags: [pacman_cache_cleanup]

      when: distro == 'archlinux'

    - block:
      - name: create dotfiles group
        group:
          name: dotfiles
          state: present
        become: true
        become_user: root

      - name: create dotfiles user
        user:
          name: dotfiles
          group: dotfiles
          home: /var/lib/dotfiles
          create_home: false
          shell: /bin/bash
          system: true
        become: true
        become_user: root

      - name: create dotfiles directory
        file:
          state: directory
          path: /var/lib/dotfiles
          owner: dotfiles
          group: dotfiles
          mode: '0775' # group needs write access!
        become: true
        become_user: root

      - name: fix permissions for dotfiles directory
        shell: |
          cd /var/lib/dotfiles
          if [[ -e .git ]] ; then
              # There is no sane way to specify the global .gitconfig to use, so we
              # actually have to override HOME so git looks into ~/.gitconfig
              export HOME="$(mktemp -d)"
              set -o pipefail
              set -o errexit
              git config --global --add safe.directory /var/lib/dotfiles
              git ls-tree -z --name-only HEAD | xargs --null chown --changes --recursive dotfiles:dotfiles
              git ls-tree -z --name-only HEAD | xargs --null chmod --changes --recursive g+wX
          else
              chown --changes --recursive dotfiles:dotfiles .
              chmod --changes --recursive g+wX .
          fi
        args:
          executable: /bin/bash
        register: dotfiles_permission_change
        become: true
        become_user: root
        changed_when: dotfiles_permission_change.stdout_lines|length > 0
      tags: [dotfiles-directory]

    - block:
      - name: install sudo
        package:
          state: present
          name: sudo

      - name: install dependencies for paru
        package:
          state: present
          name:
            - base-devel
            - git
        become: true

      - name: create build user on arch
        user:
          name: makepkg
          home: /var/lib/makepkg
          create_home: true
          shell: /bin/bash
          system: true
        become: true

      - name: create paru user on arch
        user:
          name: paru
          home: /var/lib/paru
          create_home: true
          shell: /bin/bash
          system: true
        become: true

      - name: configure passwordless sudo for paru user
        copy:
          owner: root
          group: root
          mode: "0600"
          dest: /etc/sudoers.d/paru
          content: |
            paru ALL=(ALL) NOPASSWD: /usr/bin/pacman
        become: true

      - name: check if paru is already installed
        shell: |
          set -o errexit

          if pacman -Qi paru-bin >/dev/null 2>&1; then
              exit 100
          fi
          exit 0
        args:
          executable: /bin/bash
        changed_when: false
        check_mode: false
        failed_when: result.rc not in (0, 100)
        register: result

      - name: build paru on arch
        shell: |
          set -o errexit

          mkdir -p /tmp/paru-build
          cd /tmp/paru-build

          curl -L -O https://aur.archlinux.org/cgit/aur.git/snapshot/paru-bin.tar.gz
          tar xvf paru-bin.tar.gz
          cd paru-bin
          makepkg
        args:
          executable: /bin/bash
        become: true # do not build as root!
        become_user: makepkg
        when: result.rc != 100

      - name: install paru
        shell: |
          set -o errexit

          pacman --noconfirm -U /tmp/paru-build/paru-bin/paru-bin-*.pkg.tar.zst
          rm -rf /tmp/paru-build
        args:
          executable: /bin/bash
        become: true
        when: result.rc != 100

      when: distro == 'archlinux'


    - block:
      - name: load package list
        include_vars:
          file: packages.yml

      - name: force-update iptables to iptables-nft on arch
        shell: pacman -Q iptables && yes | pacman -S iptables-nft
        changed_when: false
        become: true
        when: distro == 'archlinux'

      - set_fact:
          defined_packages: "{{ packages|json_query('keys(list)') }}"

      - set_fact:
          distro_packages: "{{ packages|json_query('list.*.%s'|format(distro)) }}"

      - name: check list
        assert:
          that: "defined_packages|length == distro_packages|length"

      - set_fact:
          defined_packages_remove: "{{ packages|json_query('keys(remove)') }}"

      - set_fact:
          distro_packages_remove: "{{ packages|json_query('remove.*.%s'|format(distro)) }}"

      - name: check list
        assert:
          that: "defined_packages_remove|length == distro_packages_remove|length"

      - name: remove packages
        package:
          name: "{{ packages|json_query(query) }}"
          state: absent
        become: true
        vars:
          query: "{{ 'remove.*.%s[]'|format(distro) }}"

      - name: install packages
        package:
          name: "{{ packages|json_query(query) }}"
          state: present
        become: true
        vars:
          query: "{{ 'list.*.%s[]'|format(distro) }}"

      - name: install machine-specific packages
        package:
          name: "{{ machine.packages }}"
          state: present
        when: machine.packages is defined
        become: true

      tags: [packages]

    - block:
      - name: configure timesyncd on arch
        copy:
          owner: root
          group: root
          mode: "0644"
          dest: /etc/systemd/timesyncd.conf
          content: |
            [Time]
            NTP=0.arch.pool.ntp.org 1.arch.pool.ntp.org 2.arch.pool.ntp.org 3.arch.pool.ntp.org
            FallbackNTP=0.pool.ntp.org 1.pool.ntp.org 2.pool.ntp.org 3.pool.ntp.org
        become: true

      - name: install lz4
        package:
          name: lz4
          state: present
        become: true

      - name: use lz4 for mkinitcpio compression
        lineinfile:
          path: /etc/mkinitcpio.conf
          regexp: '^#?COMPRESSION=.*$'
          line: 'COMPRESSION="lz4"'
        become: true
        notify:
          - rebuild initrd
      when: distro == 'archlinux'

    - set_fact:
        disable_services:
          - sshd
      when: distro == 'archlinux'

    - name: disable services
      service:
        state: stopped
        enabled: false
        name: "{{ item }}"
      with_items: "{{ disable_services }}"
      become: true
      when: manage_services|default(true)|bool

    - set_fact:
        enable_services:
          - NetworkManager
          - docker
          - libvirtd
          - systemd-timesyncd
          - pcscd

    - name: enable services
      service:
        state: started
        enabled: true
        name: "{{ item }}"
      with_items: "{{ enable_services }}"
      become: true
      when: manage_services|default(true)|bool

    - name: get systemd boot target
      command: systemctl get-default
      register: systemd_target
      changed_when: false
      check_mode: false

    - set_fact:
        default_target: multi-user.target

    - name: set systemd boot target
      command: systemctl set-default {{ default_target }}
      when: systemd_target.stdout != default_target
      become: true

    - name: handle lid switch
      lineinfile:
        path: /etc/systemd/logind.conf
        regexp: '^HandleLidSwitch='
        line: 'HandleLidSwitch=ignore'
      become: true

    - name: handle power key
      lineinfile:
        path: /etc/systemd/logind.conf
        regexp: '^HandlePowerKey='
        line: 'HandlePowerKey=suspend'
      become: true

    - name: create sudonopw group
      group:
        name: sudonopw
        system: true

    - name: configure passwordless sudo
      copy:
        owner: root
        group: root
        mode: "0600"
        dest: /etc/sudoers.d/sudonopw
        content: |
          %sudonopw ALL=(ALL) NOPASSWD: ALL
      become: true

    - block:
      - name: install AMDGPU packages
        package:
          name:
            - mesa
            - lib32-mesa
            - xf86-video-amdgpu
            - vulkan-radeon
            - lib32-vulkan-radeon
            - libva-mesa-driver
            - lib32-libva-mesa-driver
            - mesa-vdpau
            - lib32-mesa-vdpau
          state: present
        become: true

      - name: set AMDGPU options
        copy:
          owner: root
          group: root
          mode: "0600"
          dest: /etc/X11/xorg.conf.d/20-amdgpu.conf
          content: |
            Section "Device"
                Identifier "AMD"
                Driver "amdgpu"
                Option "VariableRefresh" "true"
                Option "TearFree" "true"
            EndSection
        become: true

      when:
        - distro == 'archlinux'
        - machine.gpu is defined and machine.gpu == 'amd'

    - block:
      - block:
        - name: install spotify from AUR via paru
          shell: |
            curl -sS https://download.spotify.com/debian/pubkey_5E3C45D7B312C643.gpg | gpg --import
            yes 1 | paru --skipreview --aur --batchinstall --noconfirm -S spotify
          become: true
          become_user: paru
          args:
            creates: /usr/bin/spotify

      tags: [spotify]

    - set_fact:
        users: "{{ machine.users }}"
      tags:
        - always

    - include_tasks: user.yml
      args:
        apply:
          become: true
          become_user: "{{ user.name }}"
      with_items: "{{ users }}"
      no_log: True # less spam
      loop_control:
        loop_var: user
      tags:
        - always

  handlers:
    - name: rebuild initrd
      command: mkinitcpio -P
      become: true
      register: mkinitcpio_cmd
      failed_when: >
        mkinitcpio_cmd.rc != 0
        and
        not (mkinitcpio_cmd.rc == 1 and "file not found: `fsck.overlay'" in mkinitcpio_cmd.stderr)