community.crypto.acme_certificate – Create SSL/TLS certificates with the ACME protocol

• Synopsis
• Requirements
• Parameters
• Notes
• See Also
• Examples
• Return Values

Synopsis

• Create and renew SSL/TLS certificates with a CA supporting the ACME protocol, such as Let’s Encrypt or Buypass. The current implementation supports the http-01, dns-01 and tls-alpn-01 challenges.
• To use this module, it has to be executed twice. Either as two different tasks in the same run or during two runs. Note that the output of the first run needs to be recorded and passed to the second run as the module argument data.
• Between these two tasks you have to fulfill the required steps for the chosen challenge by whatever means necessary. For http-01 that means creating the necessary challenge file on the destination webserver. For dns-01 the necessary dns record has to be created. For tls-alpn-01 the necessary certificate has to be created and served. It is not the responsibility of this module to perform these steps.
• For details on how to fulfill these challenges, you might have to read through the main ACME specification and the TLS-ALPN-01 specification. Also, consider the examples provided for this module.
• The module includes experimental support for IP identifiers according to the RFC 8738.

Requirements

The below requirements are needed on the host that executes this module.

• python >= 2.6
• either openssl or cryptography >= 1.5

Parameters

Notes

See Also

Examples

### Example with HTTP challenge ###

- name: Create a challenge for sample.com using a account key from a variable.
  community.crypto.acme_certificate:
    account_key_content: "{{ account_private_key }}"
    csr: /etc/pki/cert/csr/sample.com.csr
    dest: /etc/httpd/ssl/sample.com.crt
  register: sample_com_challenge

# Alternative first step:
- name: Create a challenge for sample.com using a account key from hashi vault.
  community.crypto.acme_certificate:
    account_key_content: "{{ lookup('hashi_vault', 'secret=secret/account_private_key:value') }}"
    csr: /etc/pki/cert/csr/sample.com.csr
    fullchain_dest: /etc/httpd/ssl/sample.com-fullchain.crt
  register: sample_com_challenge

# Alternative first step:
- name: Create a challenge for sample.com using a account key file.
  community.crypto.acme_certificate:
    account_key_src: /etc/pki/cert/private/account.key
    csr_content: "{{ lookup('file', '/etc/pki/cert/csr/sample.com.csr') }}"
    dest: /etc/httpd/ssl/sample.com.crt
    fullchain_dest: /etc/httpd/ssl/sample.com-fullchain.crt
  register: sample_com_challenge

# perform the necessary steps to fulfill the challenge
# for example:
#
# - copy:
#     dest: /var/www/html/{{ sample_com_challenge['challenge_data']['sample.com']['http-01']['resource'] }}
#     content: "{{ sample_com_challenge['challenge_data']['sample.com']['http-01']['resource_value'] }}"
#     when: sample_com_challenge is changed and 'sample.com' in sample_com_challenge['challenge_data']
#
# Alternative way:
#
# - copy:
#     dest: /var/www/{{ item.key }}/{{ item.value['http-01']['resource'] }}
#     content: "{{ item.value['http-01']['resource_value'] }}"
#   loop: "{{ sample_com_challenge.challenge_data | dictsort }}"
#   when: sample_com_challenge is changed

- name: Let the challenge be validated and retrieve the cert and intermediate certificate
  community.crypto.acme_certificate:
    account_key_src: /etc/pki/cert/private/account.key
    csr: /etc/pki/cert/csr/sample.com.csr
    dest: /etc/httpd/ssl/sample.com.crt
    fullchain_dest: /etc/httpd/ssl/sample.com-fullchain.crt
    chain_dest: /etc/httpd/ssl/sample.com-intermediate.crt
    data: "{{ sample_com_challenge }}"

### Example with DNS challenge against production ACME server ###

- name: Create a challenge for sample.com using a account key file.
  community.crypto.acme_certificate:
    account_key_src: /etc/pki/cert/private/account.key
    account_email: [email protected]
    src: /etc/pki/cert/csr/sample.com.csr
    cert: /etc/httpd/ssl/sample.com.crt
    challenge: dns-01
    acme_directory: https://acme-v01.api.letsencrypt.org/directory
    # Renew if the certificate is at least 30 days old
    remaining_days: 60
  register: sample_com_challenge

# perform the necessary steps to fulfill the challenge
# for example:
#
# - community.aws.route53:
#     zone: sample.com
#     record: "{{ sample_com_challenge.challenge_data['sample.com']['dns-01'].record }}"
#     type: TXT
#     ttl: 60
#     state: present
#     wait: yes
#     # Note: route53 requires TXT entries to be enclosed in quotes
#     value: "{{ sample_com_challenge.challenge_data['sample.com']['dns-01'].resource_value | regex_replace('^(.*)$', '\"\\1\"') }}"
#   when: sample_com_challenge is changed and 'sample.com' in sample_com_challenge.challenge_data
#
# Alternative way:
#
# - community.aws.route53:
#     zone: sample.com
#     record: "{{ item.key }}"
#     type: TXT
#     ttl: 60
#     state: present
#     wait: yes
#     # Note: item.value is a list of TXT entries, and route53
#     # requires every entry to be enclosed in quotes
#     value: "{{ item.value | map('regex_replace', '^(.*)$', '\"\\1\"' ) | list }}"
#   loop: "{{ sample_com_challenge.challenge_data_dns | dictsort }}"
#   when: sample_com_challenge is changed

- name: Let the challenge be validated and retrieve the cert and intermediate certificate
  community.crypto.acme_certificate:
    account_key_src: /etc/pki/cert/private/account.key
    account_email: [email protected]
    src: /etc/pki/cert/csr/sample.com.csr
    cert: /etc/httpd/ssl/sample.com.crt
    fullchain: /etc/httpd/ssl/sample.com-fullchain.crt
    chain: /etc/httpd/ssl/sample.com-intermediate.crt
    challenge: dns-01
    acme_directory: https://acme-v01.api.letsencrypt.org/directory
    remaining_days: 60
    data: "{{ sample_com_challenge }}"
  when: sample_com_challenge is changed

# Alternative second step:
- name: Let the challenge be validated and retrieve the cert and intermediate certificate
  community.crypto.acme_certificate:
    account_key_src: /etc/pki/cert/private/account.key
    account_email: [email protected]
    src: /etc/pki/cert/csr/sample.com.csr
    cert: /etc/httpd/ssl/sample.com.crt
    fullchain: /etc/httpd/ssl/sample.com-fullchain.crt
    chain: /etc/httpd/ssl/sample.com-intermediate.crt
    challenge: tls-alpn-01
    remaining_days: 60
    data: "{{ sample_com_challenge }}"
    # We use Let's Encrypt's ACME v2 endpoint
    acme_directory: https://acme-v02.api.letsencrypt.org/directory
    acme_version: 2
    # The following makes sure that if a chain with /CN=DST Root CA X3 in its issuer is provided
    # as an alternative, it will be selected. These are the roots cross-signed by IdenTrust.
    # As long as Let's Encrypt provides alternate chains with the cross-signed root(s) when
    # switching to their own ISRG Root X1 root, this will use the chain ending with a cross-signed
    # root. This chain is more compatible with older TLS clients.
    select_chain:
      - test_certificates: last
        issuer:
          CN: DST Root CA X3
          O: Digital Signature Trust Co.
  when: sample_com_challenge is changed

Return Values

Common return values are documented here, the following are the fields unique to this module:

Authors

• Michael Gruener (@mgruener)