theshire/ansible/main/playbooks/cluster-prepare.yaml

---
- name: Prepare System
  hosts: kubernetes
  become: true
  gather_facts: true
  any_errors_fatal: true
  pre_tasks:
    - name: Pausing for 2 seconds...
      ansible.builtin.pause:
        seconds: 2
  tasks:
    - name: Locale
      block:
        - name: Locale | Set timezone
          community.general.timezone:
            name: "{{ timezone | default('Etc/UTC') }}"

    - name: Packages
      block:
        - name: Packages | Add non-free repository
          ansible.builtin.apt_repository:
            repo: deb http://deb.debian.org/debian/ stable main contrib non-free
            filename: non-free
            update_cache: true
        - name: Packages | Install Intel common packages
          when: inventory_hostname != 'elrond'
          ansible.builtin.apt:
            name: vim,i965-va-driver-shaders,apt-transport-https,ca-certificates,conntrack,curl,dirmngr,gdisk,
              gnupg,hdparm,htop,btop,intel-gpu-tools,intel-media-va-driver-non-free,iperf3,iptables,iputils-ping,ipvsadm,
              libseccomp2,lm-sensors,neofetch,net-tools,nfs-common,nvme-cli,open-iscsi,parted,psmisc,python3,
              python3-apt,python3-openshift,python3-kubernetes,python3-yaml,smartmontools,socat,software-properties-common,
              unzip,util-linux
            install_recommends: false
        - name: Packages | Install AMD common packages
          when: inventory_hostname == 'elrond'
          ansible.builtin.apt:
            name: vim,apt-transport-https,ca-certificates,conntrack,curl,dirmngr,gdisk,
              gnupg,hdparm,htop,btop,iperf3,iptables,iputils-ping,ipvsadm,
              libseccomp2,lm-sensors,neofetch,net-tools,nfs-common,nvme-cli,open-iscsi,parted,psmisc,python3,
              python3-apt,python3-openshift,python3-kubernetes,python3-yaml,smartmontools,socat,software-properties-common,
              unzip,util-linux
            install_recommends: false


    - name: Fish
      block:
        - name: Fish | Add fish apt key
          ansible.builtin.get_url:
            url: https://download.opensuse.org/repositories/shells:fish:release:3/Debian_12/Release.key
            dest: /etc/apt/trusted.gpg.d/fish.asc
            owner: root
            group: root
            mode: "0644"
        - name: Fish | Add fish repository
          ansible.builtin.apt_repository:
            repo: deb [signed-by=/etc/apt/trusted.gpg.d/fish.asc] http://download.opensuse.org/repositories/shells:/fish:/release:/3/Debian_12/ /
            filename: fish
            update_cache: true
        - name: Fish | Install fish
          ansible.builtin.apt:
            name: fish
            install_recommends: false
        - name: Fish | Set as default shell
          ansible.builtin.user:
            name: "{{ ansible_user }}"
            shell: /usr/bin/fish
        - name: Fish | Create configuration directory
          ansible.builtin.file:
            path: "{{ '/home/' + ansible_user if ansible_user != 'root' else '/root' }}/.config/fish/functions"
            state: directory
            owner: "{{ ansible_user }}"
            group: "{{ ansible_user }}"
            recurse: true
        - name: Fish | Create neofetch greeting
          ansible.builtin.copy:
            dest: "{{ '/home/' + ansible_user if ansible_user != 'root' else '/root' }}/.config/fish/functions/fish_greeting.fish"
            owner: "{{ ansible_user }}"
            group: "{{ ansible_user }}"
            mode: "0755"
            content: neofetch --config none
        - name: Fish | Create kubectl shorthand
          ansible.builtin.copy:
            dest: "{{ '/home/' + ansible_user if ansible_user != 'root' else '/root' }}/.config/fish/functions/k.fish"
            owner: "{{ ansible_user }}"
            group: "{{ ansible_user }}"
            mode: "0755"
            content: |
              function k --wraps=kubectl --description 'kubectl shorthand'
                  kubectl $argv
              end

    - name: System Configuration
      notify: Reboot
      block:
        - name: System Configuration | Disable swap
          ansible.posix.mount:
            name: "{{ item }}"
            fstype: swap
            state: absent
          loop: ["none", "swap"]
        - name: System Configuration | Create Kernel modules
          ansible.builtin.copy:
            dest: "/etc/modules-load.d/{{ item }}.conf"
            mode: "0644"
            content: "{{ item }}"
          loop: ["br_netfilter", "ceph", "ip_vs", "ip_vs_rr", "overlay", "rbd", "tcp_bbr"]
          register: modules_status
        - name: System Configuration | Reload Kernel modules # noqa: no-changed-when no-handler
          when: modules_status.changed
          ansible.builtin.systemd:
            name: systemd-modules-load
            state: restarted
        - name: System Configuration | Sysctl
          ansible.posix.sysctl:
            name: "{{ item.key }}"
            value: "{{ item.value }}"
            sysctl_file: /etc/sysctl.d/99-kubernetes.conf
            reload: true
          with_dict: "{{ sysctl_config }}"
          vars:
            sysctl_config:
              fs.inotify.max_queued_events: 65536
              fs.inotify.max_user_watches: 524288
              fs.inotify.max_user_instances: 8192

  handlers:
    - name: Reboot
      ansible.builtin.reboot:
        msg: Rebooting nodes
        reboot_timeout: 3600