cacert/tasks/certs.yaml

- name: CA and cert | Check if dest dir exist on remote hosts
  become: true
  file:
    name: "{{ dest.path }}"
    state: directory
  delegate_to: "{{ dest.host }}"
  loop: "{{ item.dest }}"
  loop_control:
    loop_var: dest

- name: CA and certs | Generate clients certs and keys
  block:
    - name: Generate an OpenSSL private client key with the default values (4096 bits, RSA)
      community.crypto.openssl_privatekey:
        path: "{{ cacert_ssl_gen_path }}/{{ item.name }}.key"
      when: cacert_cert is not defined
      register: cacert_client_key_gen

    - name: Generate subject_alt_ips
      set_fact:
        client_subject_alt_ips: "{{ item.subject_alt_ips | map('regex_replace', '^', 'IP:') | list }}"
      when: item.subject_alt_ips is defined

    - name: Generate subject_alt_names
      set_fact:
        client_subject_alt_names: "{{ item.subject_alt_names | map('regex_replace', '^', 'DNS:') | list }}"
      when: item.subject_alt_names is defined

    - name: Generate an OpenSSL Certificate Signing Request for client
      community.crypto.openssl_csr:
        path: "{{ cacert_ssl_gen_path }}/{{ item.name }}.csr"
        privatekey_path: "{{ cacert_ssl_gen_path }}/{{ item.name }}.key"
        common_name: "{{ item.name }}"
      register: cacert_client_csr
      when: 
        - item.subject_alt_names is not defined 
        - item.subject_alt_ips is not defined

    - name: Generate an OpenSSL Certificate Signing Request for client with subject_alt_name
      community.crypto.openssl_csr:
        path: "{{ cacert_ssl_gen_path }}/{{ item.name }}.csr"
        privatekey_path: "{{ cacert_ssl_gen_path }}/{{ item.name }}.key"
        common_name: "{{ item.name }}"
        subject_alt_name: "{{ ((client_subject_alt_ips | default([])) + (client_subject_alt_names | default([]) + (['DNS:' ~ item.name]))) }}"
      register: cacert_client_csr
      when: item.subject_alt_names is defined or item.subject_alt_ips is defined

    - name: Generate an OpenSSL certificate for client signed with your own CA certificate
      community.crypto.x509_certificate:
        path: "{{ cacert_ssl_gen_path }}/{{ item.name }}.crt"
        csr_path: "{{ cacert_ssl_gen_path }}/{{ item.name }}.csr"
        ownca_path: "{{ cacert_ssl_gen_path }}/{{ cacert_ca_name }}.crt"
        ownca_privatekey_path: "{{ cacert_ssl_gen_path }}/{{ cacert_ca_name }}.key"
        provider: ownca
      register: cacert_client_cert

    - name: Get {{ item.name }} OpenSSL crt and key content
      ansible.builtin.shell: |
        cat {{ cacert_ssl_gen_path }}/{{ item.name }}.{crt,key}        
      register: concated_crt_key
      changed_when: false

    - name: Concatenate and save {{ item.name }} OpenSSL crt and key to single file
      copy:
        content: "{{ concated_crt_key.stdout }}"
        dest: "{{ cacert_ssl_gen_path }}/{{ dest.name | default(item.name) }}.{{ dest.concat }}"
      loop: "{{ item.dest }}"
      loop_control:
        loop_var: dest
      when: 
        - dest.concat is defined

- name: Distribute client certs
  become: true
  block:
    - name: Write {{ item.name }} OpenSSL key
      copy:
        src: "{{ cacert_ssl_gen_path }}/{{ item.name }}.key"
        dest: "{{ dest.path }}/{{ dest.name | default(item.name) }}.key"
        mode: 0600
      delegate_to: "{{ dest.host }}"
      loop: "{{ item.dest }}"
      loop_control:
        loop_var: dest
      when: 
        - dest.concat is not defined

    - name: Write {{ item.name }} OpenSSL crt
      copy:
        src: "{{ cacert_ssl_gen_path }}/{{ item.name }}.crt"
        dest: "{{ dest.path }}/{{ dest.name | default(item.name) }}.crt"
      delegate_to: "{{ dest.host }}"
      loop: "{{ item.dest }}"
      loop_control:
        loop_var: dest
      when: 
        - dest.concat is not defined

    - name: Write concatenated {{ item.name }} OpenSSL crt and key
      copy:
        src: "{{ cacert_ssl_gen_path }}/{{ dest.name | default(item.name) }}.{{ dest.concat }}"
        dest: "{{ dest.path }}/{{ dest.name | default(item.name) }}.{{ dest.concat }}"
      delegate_to: "{{ dest.host }}"
      loop: "{{ item.dest }}"
      loop_control:
        loop_var: dest
      when: 
        - dest.concat is defined