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- name: Security hardening
  hosts: hollyhock
  become: true
  tasks:
    - name: Configure ssh
      ansible.builtin.copy:
        src: sshd_config
        dest: /etc/ssh/sshd_config
        mode: "0644"
        backup: true
      notify: Restart ssh

    - name: Deny all incoming traffic by default
      community.general.ufw:
        default: deny
        direction: incoming

    - name: Allow all outgoing traffic by default
      community.general.ufw:
        default: allow
        direction: outgoing

    - name: Allow ssh traffic through firewall
      community.general.ufw:
        rule: allow
        port: 22
        proto: tcp

    - name: Enable ufw
      community.general.ufw:
        state: enabled

    - name: Install unattended upgrades
      ansible.builtin.apt:
        name: unattended-upgrades
        state: present
        update_cache: true

    - name: Configure unattended-upgrades
      ansible.builtin.copy:
        src: "{{ item.src }}"
        dest: "{{ item.dest }}"
        mode: "0644"
        backup: true
      loop:
        - src: apt/unattended-upgrades
          dest: /etc/apt/apt.conf.d/50unattended-upgrades
        - src: apt/auto-upgrades
          dest: /etc/apt/apt.conf.d/20auto-upgrades

  handlers:
    - name: Restart ssh
      ansible.builtin.systemd:
        name: ssh
        state: restarted