---
# hashistack generate certificates playbook
- name: "Generate certificates"
  hosts: all
  strategy: linear
  gather_facts: true
  become: true
  tasks:
    - name: "Import variables"
      ansible.builtin.import_tasks:
        file: tasks/load_vars.yml
      tags:
        - always

    - name: "Create temporary cert directory in {{ sub_configuration_directories['certificates'] }}"  # noqa: run-once[task]
      ansible.builtin.file:
        path: "{{ sub_configuration_directories['certificates'] }}/external"
        state: directory
        owner: "{{ lookup('env', 'USER') }}"
        group: "{{ lookup('env', 'USER') }}"
        mode: "0755"
      delegate_to: localhost
      run_once: true

    - name: "Generate external certificates"  # noqa: run-once[task]
      delegate_to: localhost
      run_once: true
      block:
        - name: "Create temporary cert directory in {{ sub_configuration_directories['certificates'] }}"  # noqa: run-once[task]
          ansible.builtin.file:
            path: "{{ sub_configuration_directories['certificates'] }}/external"
            state: directory
            owner: "{{ lookup('env', 'USER') }}"
            group: "{{ lookup('env', 'USER') }}"
            mode: "0755"

        - name: "Create private keys"
          community.crypto.openssl_privatekey:
            path: "{{ sub_configuration_directories['certificates'] }}/external/{{ item.fqdn }}.pem.key"
            owner: "{{ lookup('env', 'USER') }}"
            group: "{{ lookup('env', 'USER') }}"
          loop:
            - name: nomad
              fqdn: "{{ nomad_fqdn }}"
            - name: vault
              fqdn: "{{ vault_fqdn }}"
            - name: consul
              fqdn: "{{ consul_fqdn }}"

        - name: "Create certificate signing request"
          community.crypto.openssl_csr_pipe:
            privatekey_path: "{{ sub_configuration_directories['certificates'] }}/external/{{ item.fqdn }}.pem.key"
            common_name: "{{ item.fqdn }}"
            organization_name: EDNZ Cloud
          register: csr
          loop:
            - name: nomad
              fqdn: "{{ nomad_fqdn }}"
            - name: vault
              fqdn: "{{ vault_fqdn }}"
            - name: consul
              fqdn: "{{ consul_fqdn }}"

        - name: "Create self-signed certificate from CSR"
          community.crypto.x509_certificate:
            path: "{{ sub_configuration_directories['certificates'] }}/external/{{ item.item.fqdn }}.pem"
            csr_content: "{{ item.csr }}"
            privatekey_path: "{{ sub_configuration_directories['certificates'] }}/external/{{ item.item.fqdn }}.pem.key"
            provider: selfsigned
            owner: "{{ lookup('env', 'USER') }}"
            group: "{{ lookup('env', 'USER') }}"
          loop: "{{ csr.results }}"

    - name: "Generate internal certificates"
      tags:
        - never
        - internal
      delegate_to: localhost
      vars:
        hashistack_ca_key_path: "{{ sub_configuration_directories['certificates'] }}/ca/ca.key"
        hashistack_ca_cert_path: "{{ sub_configuration_directories['certificates'] }}/ca/ca.crt"
      block:
        - name: "Create internal CA"  # noqa: run-once[task]
          run_once: true
          block:
            - name: "Create temporary cert directory in {{ sub_configuration_directories['certificates'] }}"  # noqa: run-once[task]
              ansible.builtin.file:
                path: "{{ sub_configuration_directories['certificates'] }}/ca"
                state: directory
                owner: "{{ lookup('env', 'USER') }}"
                group: "{{ lookup('env', 'USER') }}"
                mode: "0755"

            - name: "Create CA private key"
              community.crypto.openssl_privatekey:
                path: "{{ hashistack_ca_key_path }}"
                owner: "{{ lookup('env', 'USER') }}"
                group: "{{ lookup('env', 'USER') }}"

            - name: "Create CA signing request"
              community.crypto.openssl_csr_pipe:
                privatekey_path: "{{ hashistack_ca_key_path }}"
                common_name: "CA"
                organization_name: EDNZ Cloud
                use_common_name_for_san: false
                basic_constraints:
                  - CA:TRUE
                basic_constraints_critical: true
                key_usage:
                  - keyCertSign
                key_usage_critical: true
              register: ca_csr

            - name: "Create self-signed CA certificate from CSR"
              community.crypto.x509_certificate:
                path: "{{ hashistack_ca_cert_path }}"
                csr_content: "{{ ca_csr.csr }}"
                privatekey_path: "{{ hashistack_ca_key_path }}"
                provider: selfsigned
                owner: "{{ lookup('env', 'USER') }}"
                group: "{{ lookup('env', 'USER') }}"

        - name: "Create Vault certificates"
          when:
            - "'vault_servers' in group_names"
          vars:
            vault_private_key_path: "{{ sub_configuration_directories['certificates'] }}/vault/{{ inventory_hostname }}/key.pem"
            vault_certificate_path: "{{ sub_configuration_directories['certificates'] }}/vault/{{ inventory_hostname }}/cert.pem"
          block:
            - name: "Create temporary cert directory in {{ sub_configuration_directories['certificates'] }}"  # noqa: run-once[task]
              ansible.builtin.file:
                path: "{{ sub_configuration_directories['certificates'] }}/vault/{{ inventory_hostname }}"
                state: directory
                owner: "{{ lookup('env', 'USER') }}"
                group: "{{ lookup('env', 'USER') }}"
                mode: "0755"

            - name: "Create Vault certificate keys"
              community.crypto.openssl_privatekey:
                path: "{{ vault_private_key_path }}"
                owner: "{{ lookup('env', 'USER') }}"
                group: "{{ lookup('env', 'USER') }}"

            - name: "Create CSRs for Vault servers"
              community.crypto.openssl_csr_pipe:
                privatekey_path: "{{ vault_private_key_path }}"
                common_name: "{{ inventory_hostname }}"
                subject_alt_name:
                  - "DNS:{{ inventory_hostname }}"
                  - "DNS:active.vault.service.consul"
                  - "DNS:standby.vault.service.consul"
                  - "DNS:vault.service.consul"
                  - "DNS:localhost"
                  - "IP:{{ api_interface_address }}"
                  - "IP:127.0.0.1"
                key_usage_critical: true
                key_usage:
                  - Digital Signature
                  - Key Encipherment
                  - Key Agreement
                extended_key_usage:
                  - TLS Web Server Authentication
                  - TLS Web Client Authentication
                organization_name: EDNZ Cloud
                use_common_name_for_san: false
              register: vault_csr

            - name: "Sign certificates with internal CA"
              community.crypto.x509_certificate:
                path: "{{ vault_certificate_path }}"
                csr_content: "{{ vault_csr.csr }}"
                provider: ownca
                ownca_path: "{{ hashistack_ca_cert_path }}"
                ownca_privatekey_path: "{{ hashistack_ca_key_path }}"
                ownca_not_after: "+365d"
                ownca_not_before: "-1d"

            - name: "Concatenate CA and Child certificates"
              block:
                - name: "Read content of ca.crt"
                  ansible.builtin.slurp:
                    src: "{{ hashistack_ca_cert_path }}"
                  register: ca_crt_content

                - name: "Read content of cert.pem"
                  ansible.builtin.slurp:
                    src: "{{ vault_certificate_path }}"
                  register: cert_pem_content

                - name: "Concatenate certificates"
                  ansible.builtin.copy:
                    content: |
                      {{ cert_pem_content['content'] | b64decode }}{{ ca_crt_content['content'] | b64decode }}
                    dest: "{{ vault_certificate_path }}"
                    owner: "{{ lookup('env', 'USER') }}"
                    group: "{{ lookup('env', 'USER') }}"
                    mode: "0644"

        - name: "Create Consul certificates"
          when:
            - "('consul_servers' in group_names) or ('consul_agents' in group_names)"
          vars:
            consul_private_key_path: "{{ sub_configuration_directories['certificates'] }}/consul/{{ inventory_hostname }}/key.pem"
            consul_certificate_path: "{{ sub_configuration_directories['certificates'] }}/consul/{{ inventory_hostname }}/cert.pem"
          block:
            - name: "Create temporary cert directory in {{ sub_configuration_directories['certificates'] }}"  # noqa: run-once[task]
              ansible.builtin.file:
                path: "{{ sub_configuration_directories['certificates'] }}/consul/{{ inventory_hostname }}"
                state: directory
                owner: "{{ lookup('env', 'USER') }}"
                group: "{{ lookup('env', 'USER') }}"
                mode: "0755"

            - name: "Create Consul certificate keys"
              community.crypto.openssl_privatekey:
                path: "{{ consul_private_key_path }}"
                owner: "{{ lookup('env', 'USER') }}"
                group: "{{ lookup('env', 'USER') }}"

            - name: "Create CSRs for Consul servers"
              vars:
                consul_csr_sans: >-
                  {%- set sans_list = [
                      'DNS:' + inventory_hostname,
                      'DNS:consul.service.consul',
                      'DNS:localhost',
                      'IP:' + api_interface_address,
                      'IP:127.0.0.1'
                  ] -%}
                  {%- if hashicorp_consul_configuration.server -%}
                    {%- set _ = sans_list.append('DNS:server.' ~ hashicorp_consul_configuration.datacenter ~ '.' ~ hashicorp_consul_configuration.domain) -%}
                  {%- endif -%}
                  {{ sans_list }}
              community.crypto.openssl_csr_pipe:
                privatekey_path: "{{ consul_private_key_path }}"
                common_name: "{{ inventory_hostname }}"
                subject_alt_name: "{{ consul_csr_sans }}"
                key_usage_critical: true
                key_usage:
                  - Digital Signature
                  - Key Encipherment
                  - Key Agreement
                extended_key_usage:
                  - TLS Web Server Authentication
                  - TLS Web Client Authentication
                organization_name: EDNZ Cloud
                use_common_name_for_san: false
              register: consul_csr

            - name: "Sign certificates with internal CA"
              community.crypto.x509_certificate:
                path: "{{ consul_certificate_path }}"
                csr_content: "{{ consul_csr.csr }}"
                provider: ownca
                ownca_path: "{{ hashistack_ca_cert_path }}"
                ownca_privatekey_path: "{{ hashistack_ca_key_path }}"
                ownca_not_after: "+365d"
                ownca_not_before: "-1d"

            - name: "Concatenate CA and Child certificates"
              block:
                - name: "Read content of ca.crt"
                  ansible.builtin.slurp:
                    src: "{{ hashistack_ca_cert_path }}"
                  register: ca_crt_content

                - name: "Read content of cert.pem"
                  ansible.builtin.slurp:
                    src: "{{ consul_certificate_path }}"
                  register: cert_pem_content

                - name: "Concatenate certificates"
                  ansible.builtin.copy:
                    content: |
                      {{ cert_pem_content['content'] | b64decode }}{{ ca_crt_content['content'] | b64decode }}
                    dest: "{{ consul_certificate_path }}"
                    owner: "{{ lookup('env', 'USER') }}"
                    group: "{{ lookup('env', 'USER') }}"
                    mode: "0644"