ansible-infra/playbooks/roles/deploy_ssh_server_config/tasks/main.yaml

# Role and config created after: https://infosec.mozilla.org/guidelines/openssh
- name: deploy SSH server config
  become: true

  block:
    - name: deploy `sshd_config`
      ansible.builtin.template:
        force: true
        dest: /etc/ssh/sshd_config
        mode: "0644"
        owner: root
        group: root
        src: sshd_config.j2
      register: deploy_ssh_server_config__ssh_config_copy_result

    - name: deactivate short moduli
      ansible.builtin.shell:
        cmd: awk '$5 >= 3071' /etc/ssh/moduli > /etc/ssh/moduli.tmp && mv /etc/ssh/moduli.tmp /etc/ssh/moduli

    # Rebooting here instead of restarting the ssh service, since I don't know how Ansible reacts, when it restarts the service it probably needs for the connection.
    - name: reboot, if ssh server config got changed
      ansible.builtin.reboot:
      when: deploy_ssh_server_config__ssh_config_copy_result.changed