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ACME: improve documentation (#44691)
* Override description for account_key_src and account_key_content to also mention private_key_*. * Convert generic OpenSSL/cryptography remark from description to note. This avoids the whole description list to be sorted alphabetically, which will be done by plugin_docs.py in case description is mentioned in both module fragment and module itself. * Moving more notes to the notes: section. * Uniformization of first paragraph. Mainly mention ACME supporting CAs, and only then mention Let's Encrypt as one of them. * Adjusting to current drafts. * Adjusting to updated drafts. * Harmonizing short module descriptions. * Referencing helper modules. * Move general Let's Encrypt remark to doc fragment. * Changing some Let's Encrypt references to more generic statements.
This commit is contained in:
Felix Fontein
René Moser
parent
5fecf8baab
commit
fadf8a2d09
6 changed files with 86 additions and 56 deletions
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@ -18,10 +18,10 @@ DOCUMENTATION = '''
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module: acme_certificate
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author: "Michael Gruener (@mgruener)"
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version_added: "2.2"
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short_description: Create SSL certificates with an ACME protocol endpoint
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short_description: Create SSL/TLS certificates with the ACME protocol
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description:
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- "Create and renew SSL certificates with a CA supporting the
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L(ACME protocol,https://tools.ietf.org/html/draft-ietf-acme-acme-12),
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- "Create and renew SSL/TLS certificates with a CA supporting the
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L(ACME protocol,https://tools.ietf.org/html/draft-ietf-acme-acme-14),
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such as L(Let's Encrypt,https://letsencrypt.org/). The current
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implementation supports the C(http-01), C(dns-01) and C(tls-alpn-01)
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challenges."
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@ -36,19 +36,21 @@ description:
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the necessary certificate has to be created and served.
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It is I(not) the responsibility of this module to perform these steps."
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- "For details on how to fulfill these challenges, you might have to read through
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L(the main ACME specification,https://tools.ietf.org/html/draft-ietf-acme-acme-12#section-8)
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and the L(TLS-ALPN-01 specification,U(https://tools.ietf.org/html/draft-ietf-acme-tls-alpn-01#section-3).
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L(the main ACME specification,https://tools.ietf.org/html/draft-ietf-acme-acme-14#section-8)
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and the L(TLS-ALPN-01 specification,https://tools.ietf.org/html/draft-ietf-acme-tls-alpn-05#section-3).
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Also, consider the examples provided for this module."
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- "Although the defaults are chosen so that the module can be used with
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the Let's Encrypt CA, the module can be used with any service using the ACME
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v1 or v2 protocol."
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notes:
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- "At least one of C(dest) and C(fullchain_dest) must be specified."
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- "Note that this module includes basic account management functionality.
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- "This module includes basic account management functionality.
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If you want to have more control over your ACME account, use the M(acme_account)
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module and disable account management for this module using the C(modify_account)
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option."
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- "Note: this module was called C(letsencrypt) before Ansible 2.6. The usage
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- "This module was called C(letsencrypt) before Ansible 2.6. The usage
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did not change."
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- "If you want to use the C(tls-alpn-01) challenge, you can use the
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M(acme_challenge_cert_helper) module to prepare the challenge certificate."
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- "You can use the M(certificate_complet_chain) module to find the root certificate
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for the returned fullchain."
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extends_documentation_fragment:
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- acme
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options:
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@ -98,8 +100,8 @@ options:
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CSR to be signed."
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- "I(Note): the private key used to create the CSR I(must not) be the
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account key. This is a bad idea from a security point of view, and
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the CA should not accept the CSR. Let's Encrypt will return an error
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in this case."
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the CA should not accept the CSR. The ACME server should return an
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error in this case."
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required: true
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aliases: ['src']
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data:
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@ -284,7 +286,7 @@ challenge_data:
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- "For C(tls-alpn-01) challenges, note that this return value contains a
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Base64 encoded version of the correct binary blob which has to be put
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into the acmeValidation x509 extension; see
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U(https://tools.ietf.org/html/draft-ietf-acme-tls-alpn-01#section-3)
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U(https://tools.ietf.org/html/draft-ietf-acme-tls-alpn-05#section-3)
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for details. To do this, you might need the C(b64decode) Jinja filter
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to extract the binary blob from this return value."
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returned: changed
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@ -307,7 +309,7 @@ authorizations:
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type: complex
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contains:
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authorization:
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description: ACME authorization object. See U(https://tools.ietf.org/html/draft-ietf-acme-acme-12#section-7.1.4)
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description: ACME authorization object. See U(https://tools.ietf.org/html/draft-ietf-acme-acme-14#section-7.1.4)
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returned: success
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type: dict
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order_uri:
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@ -492,17 +494,17 @@ class ACMEClient(object):
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keyauthorization = self.account.get_keyauthorization(token)
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if type == 'http-01':
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# https://tools.ietf.org/html/draft-ietf-acme-acme-12#section-8.3
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# https://tools.ietf.org/html/draft-ietf-acme-acme-14#section-8.3
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resource = '.well-known/acme-challenge/' + token
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data[type] = {'resource': resource, 'resource_value': keyauthorization}
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elif type == 'dns-01':
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# https://tools.ietf.org/html/draft-ietf-acme-acme-12#section-8.4
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# https://tools.ietf.org/html/draft-ietf-acme-acme-14#section-8.4
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resource = '_acme-challenge'
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value = nopad_b64(hashlib.sha256(to_bytes(keyauthorization)).digest())
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record = (resource + domain[1:]) if domain.startswith('*.') else (resource + '.' + domain)
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data[type] = {'resource': resource, 'resource_value': value, 'record': record}
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elif type == 'tls-alpn-01':
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# https://tools.ietf.org/html/draft-ietf-acme-tls-alpn-01#section-3
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# https://tools.ietf.org/html/draft-ietf-acme-tls-alpn-05#section-3
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resource = domain
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value = base64.b64encode(hashlib.sha256(to_bytes(keyauthorization)).digest())
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data[type] = {'resource': resource, 'resource_value': value}
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@ -573,7 +575,7 @@ class ACMEClient(object):
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'''
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Create a new certificate based on the csr.
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Return the certificate object as dict
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https://tools.ietf.org/html/draft-ietf-acme-acme-12#section-7.4
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https://tools.ietf.org/html/draft-ietf-acme-acme-14#section-7.4
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'''
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csr = pem_to_der(self.csr)
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new_cert = {
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@ -607,7 +609,7 @@ class ACMEClient(object):
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def _download_cert(self, url):
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'''
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Download and parse the certificate chain.
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https://tools.ietf.org/html/draft-ietf-acme-acme-12#section-7.4.2
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https://tools.ietf.org/html/draft-ietf-acme-acme-14#section-7.4.2
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'''
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resp, info = fetch_url(self.module, url, headers={'Accept': 'application/pem-certificate-chain'})
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try:
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@ -679,7 +681,7 @@ class ACMEClient(object):
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def _new_order_v2(self):
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'''
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Start a new certificate order (ACME v2 protocol).
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https://tools.ietf.org/html/draft-ietf-acme-acme-12#section-7.4
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https://tools.ietf.org/html/draft-ietf-acme-acme-14#section-7.4
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'''
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identifiers = []
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for domain in self.domains:
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@ -841,7 +843,7 @@ class ACMEClient(object):
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'''
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Deactivates all valid authz's. Does not raise exceptions.
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https://community.letsencrypt.org/t/authorization-deactivation/19860/2
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https://tools.ietf.org/html/draft-ietf-acme-acme-12#section-7.5.2
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https://tools.ietf.org/html/draft-ietf-acme-acme-14#section-7.5.2
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'''
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authz_deactivate = {
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'status': 'deactivated'
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