---
- name: setup ansible custom facts
  file:
    dest: "{{ item }}"
    mode: 0755
    owner: root
    group: "{{ ansible_wheel }}"
    state: directory
  with_items:
    - /etc/ansible
    - /etc/ansible/facts.d

- name: set correct hostname
  hostname:
    name: "{{ inventory_hostname }}"

- name: include os specific tasks
  include_tasks: "{{ ansible_os_family }}.yml"

- name: disable at from all users
  copy:
    content: "\n"
    dest: "/etc/at.allow"
    mode: 0600
    owner: root
    group: "{{ ansible_wheel }}"

# use mozilla recommended settings (only prefer aes256 over chacha20)
# https://infosec.mozilla.org/guidelines/openssh.html
- name: tighten sshd kex algorithms
  lineinfile:
    path: /etc/ssh/sshd_config
    line: "KexAlgorithms curve25519-sha256@libssh.org,\
     diffie-hellman-group-exchange-sha256"
    regexp: "^KexAlgorithms .*"
  notify: restart sshd
- name: tighten sshd ciphers
  lineinfile:
    path: /etc/ssh/sshd_config
    line: "Ciphers aes256-gcm@openssh.com,chacha20-poly1305@openssh.com,\
     aes128-gcm@openssh.com,aes256-ctr,aes192-ctr,aes128-ctr"
    regexp: "^Ciphers .*"
  notify: restart sshd
- name: tighten sshd macs
  lineinfile:
    path: /etc/ssh/sshd_config
    line: "MACs hmac-sha2-512-etm@openssh.com,\
     hmac-sha2-256-etm@openssh.com,umac-128-etm@openssh.com,\
     hmac-sha2-512,hmac-sha2-256,umac-128@openssh.com"
    regexp: "^MACs .*"
  notify: restart sshd

- name: disable ecdsa key from sshd
  lineinfile:
    path: /etc/ssh/sshd_config
    line: "#HostKey /etc/ssh/ssh_host_ecdsa_key"
    regexp: "^#?HostKey /etc/ssh/ssh_host_ecdsa_key"
  notify: restart sshd
- name: disable rsa key from sshd
  lineinfile:
    path: /etc/ssh/sshd_config
    line: "#HostKey /etc/ssh/ssh_host_rsa_key"
    regexp: "^#?HostKey /etc/ssh/ssh_host_rsa_key"
  notify: restart sshd
- name: enable ed25519 key from sshd
  lineinfile:
    path: /etc/ssh/sshd_config
    line: "HostKey /etc/ssh/ssh_host_ed25519_key"
    regexp: "^#?HostKey /etc/ssh/ssh_host_ed25519_key"
  notify: restart sshd

- name: install basic roles
  include_role:
    name: "{{ role }}"
  with_items:
    - network
    - pki
    - psacct
  loop_control:
    loop_var: role