- name: Check if ssl dir exist
  file: 
    name: "{{ patroni_ssl_path }}"
    state: directory
    owner: postgres
    group: postgres
  when: patroni_ssl

- name: Add predefined ssl cert for Patroni
  copy:
    src: "{{ patroni_cert_name }}"
    dest: "{{ patroni_ssl_path }}/{{ patroni_cert_name }}"
    owner: postgres
    group: postgres
  notify: Restart Patroni
  when: patroni_cert is defined

- name: Generate OpenSSL key and cert for Patroni
  when: "inventory_hostname == groups.patroni|first"
  block:
    - name: Generate an OpenSSL private CA key with the default values (4096 bits, RSA)
      community.crypto.openssl_privatekey:
        path: "{{ patroni_ssl_path }}/CA-{{ patroni_self_signed_cert_name }}.key"
        owner: postgres
        group: postgres
      when: patroni_cert is not defined
      register: patroni_ca_key_gen

    - name: Generate an OpenSSL Certificate Signing Request
      community.crypto.openssl_csr:
        path: "{{ patroni_ssl_path }}/CA-{{ patroni_self_signed_cert_name }}.csr"
        privatekey_path: "{{ patroni_ssl_path }}/CA-{{ patroni_self_signed_cert_name }}.key"
        use_common_name_for_san: false
        basic_constraints:
          - 'CA:TRUE'
        basic_constraints_critical: yes
        key_usage:
          - keyCertSign
        key_usage_critical: true
        common_name: "CA-{{ patroni_self_signed_cert_name }}"
        owner: postgres
        group: postgres
      register: patroni_ca_csr
    
    - name: Generate a Self Signed OpenSSL CA certificate
      community.crypto.x509_certificate:
        path: "{{ patroni_ssl_path }}/CA-{{ patroni_self_signed_cert_name }}.crt"
        csr_path: "{{ patroni_ssl_path }}/CA-{{ patroni_self_signed_cert_name }}.csr"
        privatekey_path: "{{ patroni_ssl_path }}/CA-{{ patroni_self_signed_cert_name }}.key"
        provider: selfsigned
        owner: postgres
        group: postgres
      when: patroni_cert is not defined
      register: patroni_ca_cert_gen

    - name: Generate an OpenSSL private client key with the default values (4096 bits, RSA)
      community.crypto.openssl_privatekey:
        path: "{{ patroni_ssl_path }}/{{ patroni_self_signed_cert_name }}.key"
        owner: postgres
        group: postgres
      when: patroni_cert is not defined
      register: patroni_key_gen

    - name: Generate subject_alt_ips
      set_fact:
        client_subject_alt_ips: "{{ groups.patroni | map('extract', hostvars, ['ansible_host']) | map('regex_replace', '^', 'IP:') | list }}"

    - name: Print alt subjects ips
      debug:
        msg: "{{ client_subject_alt_ips }}"
        verbosity: 2

    - name: Generate subject_alt_names
      set_fact:
        client_subject_alt_names: "{{ groups.patroni | map('extract', hostvars, ['inventory_hostname']) | map('regex_replace', '^', 'DNS:') | list }}"

    - name: Print alt subjects names
      debug:
        msg: "{{ client_subject_alt_names }}"
        verbosity: 2

    - name: Generate an OpenSSL Certificate Signing Request for client
      community.crypto.openssl_csr:
        path: "{{ patroni_ssl_path }}/{{ patroni_self_signed_cert_name }}.csr"
        privatekey_path: "{{ patroni_ssl_path }}/{{ patroni_self_signed_cert_name }}.key"
        common_name: "{{ patroni_self_signed_cert_name }}"
        subject_alt_name: "{{ (( groups.patroni | map('extract', hostvars, ['ansible_host']) | map('regex_replace', '^', 'IP:') | list | default([])) + (groups.patroni | map('extract', hostvars, ['inventory_hostname']) | map('regex_replace', '^', 'DNS:') | list | default([]))) }}"
        owner: postgres
        group: postgres
      register: patroni_csr

    - name: Generate an OpenSSL certificate for client signed with your own CA certificate
      community.crypto.x509_certificate:
        path: "{{ patroni_ssl_path }}/{{ patroni_self_signed_cert_name }}.crt"
        csr_path: "{{ patroni_ssl_path }}/{{ patroni_self_signed_cert_name }}.csr"
        ownca_path: "{{ patroni_ssl_path }}/CA-{{ patroni_self_signed_cert_name }}.crt"
        ownca_privatekey_path: "{{ patroni_ssl_path }}/CA-{{ patroni_self_signed_cert_name }}.key"
        provider: ownca
        owner: postgres
        group: postgres
      register: patroni_cert

    - name: Get CA cert content
      slurp:
        src: "{{ patroni_ssl_path }}/CA-{{ patroni_self_signed_cert_name }}.crt"
      register: patroni_ca_cert_b64

    - name: Get CA key content
      slurp:
        src: "{{ patroni_ssl_path }}/CA-{{ patroni_self_signed_cert_name }}.key"
      register: patroni_ca_key_b64

    - name: Get client cert content
      slurp:
        src: "{{ patroni_ssl_path }}/{{ patroni_self_signed_cert_name }}.crt"
      register: patroni_cert_b64

    - name: Get client key content
      slurp:
        src: "{{ patroni_ssl_path }}/{{ patroni_self_signed_cert_name }}.key"
      register: patroni_key_b64

    - name: Set facts about key and cert
      set_fact:
        patroni_ca_key: "{{ patroni_ca_key_b64.content | b64decode }}"
        patroni_ca_cert: "{{ patroni_ca_cert_b64.content | b64decode }}"
        patroni_key: "{{ patroni_key_b64.content | b64decode }}"
        patroni_cert: "{{ patroni_cert_b64.content | b64decode }}"
      delegate_to: "{{ item }}"
      delegate_facts: true
      run_once: true
      loop: "{{ groups.patroni }}"

- name: Put Patroni CA OpenSSL key
  copy:
    content: "{{ patroni_ca_key }}"
    dest: "{{ patroni_ssl_path }}/CA-{{ patroni_self_signed_cert_name }}.key"
    owner: postgres
    group: postgres
    mode: 0600
  notify: Restart Patroni

- name: Put Patroni CA OpenSSL cert
  copy:
    content: "{{ patroni_ca_cert }}"
    dest: "{{ patroni_ssl_path }}/CA-{{ patroni_self_signed_cert_name }}.crt"
    owner: postgres
    group: postgres
  notify: Restart Patroni

- name: Put Patroni CA OpenSSL cert to PKI
  copy:
    content: "{{ patroni_ca_cert }}"
    dest: "/etc/pki/ca-trust/source/anchors/CA-{{ patroni_self_signed_cert_name }}.crt"
  register: ca_trust_anchors
  notify: Restart Patroni

- name: Update CA trust
  shell: update-ca-trust extract
  when: ca_trust_anchors.changed

- name: Put Patroni OpenSSL key
  copy:
    content: "{{ patroni_key }}"
    dest: "{{ patroni_ssl_path }}/{{ patroni_self_signed_cert_name }}.key"
    owner: postgres
    group: postgres
    mode: 0600
  notify: Restart Patroni

- name: Put Patroni OpenSSL cert
  copy:
    content: "{{ patroni_cert }}"
    dest: "{{ patroni_ssl_path }}/{{ patroni_self_signed_cert_name }}.crt"
    owner: postgres
    group: postgres
  notify: Restart Patroni