acme script read the domains from config file

5-trigger-hooks-after-certificate-renewal
HgO 2020-12-25 18:41:34 +01:00
parent f18368fc6f
commit 646bfc463d
7 changed files with 426 additions and 303 deletions

1
.gitignore vendored 100644
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.vscode

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acme_directory: https://acme-v02.api.letsencrypt.org/directory acme_directory_url: ht
acme_config_dir: /etc/ssl acme_config_dir: /etc/ssl
acme_config_file: "{{ acme_config_dir }}/acme.yml"
acme_keys_dir: "{{ acme_config_dir }}/private" acme_keys_dir: "{{ acme_config_dir }}/private"
acme_csr_dir: "{{ acme_config_dir }}/csr" acme_csr_dir: "{{ acme_config_dir }}/csr"
acme_certs_dir: "{{ acme_config_dir }}/certs" acme_certs_dir: "{{ acme_config_dir }}/certs"
acme_accounts_dir: "{{ acme_config_dir }}/accounts" acme_accounts_dir: "{{ acme_config_dir }}/accounts"
acme_account_key: "acme_account.key" acme_script_dir: /opt/acme
acme_script_bin: /usr/local/bin/acme-renew-cert
acme_ssl_group: ssl-cert acme_ssl_group: ssl-cert
acme_challenge_dir: /var/www/acme acme_config:
acme_domains: [] account:
private_key: "{{ acme_accounts_dir }}/acme_account.key"
email: acme@example.com
owner: root
group: root
directory_url: https://acme-staging-v02.api.letsencrypt.org/directory
challenge_dir: /var/www/acme/.well-known/acme-challenge
domains:
example.com:
alt_names:
- test.example.com
owner: root
group: "{{ acme_ssl_group }}"
remaining_days: 30
hooks:
- systemctl reload nginx

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#!/usr/bin/env python3 #!/usr/bin/env python3
import grp
import logging import logging
import os import os
import pwd
import subprocess
import sys import sys
from datetime import datetime from datetime import datetime
from typing import List, Dict
import josepy as jose
import acme import acme
from OpenSSL import crypto import josepy as jose
import requests
import yaml
from acme import client, messages, challenges, crypto_util from acme import client, messages, challenges, crypto_util
from OpenSSL import crypto
SSL_CONFIG_DIR="/etc/ssl" SSL_CONFIG_DIR = "/etc/ssl"
SSL_CONFIG_FILE = os.path.join(SSL_CONFIG_DIR, "acme.yml")
SSL_ACCOUNTS_DIR = os.path.join(SSL_CONFIG_DIR, "accounts")
SSL_KEYS_DIR = os.path.join(SSL_CONFIG_DIR, "private")
SSL_CSR_DIR = os.path.join(SSL_CONFIG_DIR, "csr")
SSL_CERTS_DIR = os.path.join(SSL_CONFIG_DIR, "certs")
try:
SSL_GROUP = grp.getgrnam("ssl-cert").gr_name
except KeyError:
SSL_GROUP = "root"
ACME_ACCOUNT_KEY = os.path.join(SSL_ACCOUNTS_DIR, "acme_account.key")
ACME_CHALLENGE_DIR = "/var/www/acme/.well-known/acme-challenge"
LETSENCRYPT_DIRECTORY_URL = "https://acme-v02.api.letsencrypt.org/directory"
OPENSSL_DATE_FORMAT = '%Y%m%d%H%M%SZ' OPENSSL_DATE_FORMAT = '%Y%m%d%H%M%SZ'
USER_AGENT="python-acme" CERT_REMAINING_DAYS = 30
USER_AGENT = "python-acme"
def get_cert_expiration_days(cert_path: str): OS_OWNERS = {}
"""Calculate remaining number of days before certificate's expiration. OS_GROUPS = {}
:param str cert_path: Path to a certificate file.
:returns: Number of remaining days before certificate's expiration. def chown(path: str, owner: str, group: str, **kwargs) -> None:
:rtype: int if owner not in OS_OWNERS:
""" OS_OWNERS[owner] = pwd.getpwnam(owner).pw_uid
now = datetime.now() if group not in OS_GROUPS:
cert_expiration_date = now OS_GROUPS[group] = grp.getgrnam(group).gr_gid
os.chown(path, OS_OWNERS[owner], OS_GROUPS[group], **kwargs)
class PrivateKey:
def __init__(self, private_key: str, owner: str, group: str):
self.private_key = private_key
self.owner = owner
self.group = group
def load_or_create_private_key(self) -> crypto.PKey:
logging.info(f"Loading private key from {self.private_key}")
try:
with open(self.private_key, 'rb') as pem_in:
private_key_pem = crypto.load_privatekey(crypto.FILETYPE_PEM,
pem_in.read())
return private_key_pem
except IOError as e:
logging.warning(f"Unable to load private key: {e}")
logging.info("Generating a new private key")
private_key_pem = crypto.PKey()
private_key_pem.generate_key(crypto.TYPE_RSA, 4096)
logging.info(f"Writing private key into {self.private_key}")
private_key_dir = os.path.dirname(self.private_key)
os.makedirs(private_key_dir, mode=0o750, exist_ok=True)
chown(private_key_dir, self.owner, self.group)
ofd = os.open(self.private_key, os.O_CREAT | os.O_WRONLY, 0o640)
with open(ofd, 'wb') as pem_out:
pem_out.write(crypto.dump_privatekey(crypto.FILETYPE_PEM,
private_key_pem))
chown(self.private_key, self.owner, self.group)
return private_key_pem
class Account(PrivateKey):
def __init__(self, private_key: str, email: str, owner: str, group: str):
super().__init__(private_key, owner, group)
self.private_key_pem = self.load_or_create_private_key()
self.email = email
self.jwk = jose.JWKRSA(key=self.private_key_pem.to_cryptography_key())
self.jwk_pub = self.jwk.public_key()
def register(self, directory_url: str) -> acme.client.ClientV2:
client_network = client.ClientNetwork(self.jwk, user_agent=USER_AGENT)
directory_json = client_network.get(directory_url).json()
directory = messages.Directory.from_json(directory_json)
acme_client = client.ClientV2(directory, net=client_network)
try: try:
with open(cert_path, 'rb') as pem_in: logging.info(f"Registering with a new ACME account")
fullchain_pem = crypto.load_certificate(crypto.FILETYPE_PEM, pem_in.read()) registration = messages.NewRegistration.from_data(
cert_expiration_date = datetime.strptime(fullchain_pem.get_notAfter().decode(), OPENSSL_DATE_FORMAT) email=self.email,
except IOError as e: terms_of_service_agreed=True)
logging.warning(f"Unable to load certificate: {e}") acme_client.new_account(registration)
except acme.errors.ConflictError as e:
logging.warning(f"Unable to create a new ACME account: {e}")
logging.info("Registering with an existing ACME account")
registration_message = messages.NewRegistration(
key=self.jwk_pub,
only_return_existing=True)
registration_response = acme_client._post(directory["newAccount"],
registration_message)
account = acme_client._regr_from_response(registration_response)
acme_client.net.account = account
return acme_client
cert_expiration_days = (cert_expiration_date - now).days
return cert_expiration_days
def load_or_create_csr(domain: str, csr_path: str, privkey_path: str): class Challenge:
"""Load or create a CSR for a given domain. def __init__(self, path: str, acme_client: acme.client.ClientV2):
self.path = path
self.acme_client = acme_client
:param str domain: A domain name. def run(self, csr_pem: str) -> str:
:param str csr_path: Path to a CSR file. logging.info("Ordering ACME challenge")
:param str privkey_path: Path to a private key. It is used as fallback when the CSR doesn't exist. order = self.acme_client.new_order(csr_pem)
:returns: The CSR in PEM file format. logging.info("Selecting HTTP-01 ACME challenge")
:rtype: str challenge = self.select_http01_challenge(order)
"""
logging.info(f"Loading {domain} CSR file from {csr_path}")
try:
with open(csr_path, 'r') as pem_in:
csr_pem = pem_in.read()
except IOError as e:
logging.warning(f"Unable to load CSR file: {e}")
logging.info(f"Loading {domain} private key from {privkey_path}")
with open(privkey_path, 'r') as pem_in:
privkey_pem = pem_in.read()
logging.info(f"Generating a new CSR…") logging.info("Performing HTTP-01 ACME challenge")
csr_pem = crypto_util.make_csr(privkey_pem, [domain]) fullchain_pem = self.perform_http01_challenge(challenge, order)
return csr_pem return fullchain_pem
def select_http01_challenge(order: messages.OrderResource): @staticmethod
def select_http01_challenge(order: messages.OrderResource) \
-> challenges.Challenge:
"""Select the HTTP-01 challenge from a given order """Select the HTTP-01 challenge from a given order
:param messages.OrderResource order: ACME order containing the challenges. :param messages.OrderResource order: Order containing the challenges.
:returns: The HTTP-01 challenge. :returns: The HTTP-01 challenge.
:rtype: challenges.Challenge :rtype: challenges.Challenge
@ -73,86 +146,89 @@ def select_http01_challenge(order: messages.OrderResource):
return challenge return challenge
raise Exception("HTTP-01 challenge was not offered by the CA server.") raise Exception("HTTP-01 challenge was not offered by the CA server.")
def perform_http01_challenge( def perform_http01_challenge(self, challenge: challenges.Challenge,
client_acme: client.ClientV2, order: messages.OrderResource) -> str:
challenge: challenges.Challenge,
order: messages.OrderResource,
challenge_dir: str):
"""Perform the HTTP-01 challenge in a given directory """Perform the HTTP-01 challenge in a given directory
:param client.ClientV2 client_acme: A ACME v2 client
:param challenges.Challenge challenge: A ACME challenge :param challenges.Challenge challenge: A ACME challenge
:param messages.OrderResource order: An ACME order :param messages.OrderResource order: An ACME order
:param str challenge_dir: The directory containing the challenge
:returns: The fullchain certificate in PEM file format :returns: The fullchain certificate in PEM file format
:rtype: str :rtype: str
""" """
response, validation = challenge.response_and_validation(client_acme.net.key) account_key = self.acme_client.net.key
response, validation = challenge.response_and_validation(account_key)
validation_filename, _ = validation.split('.') validation_filename, _ = validation.split('.')
challenge_path = os.path.join(challenge_dir, validation_filename) challenge_path = os.path.join(self.path, validation_filename)
with open(challenge_path, 'w') as f_out: logging.info(f"Writing challenge into {challenge_path} directory")
f_out.write(validation) os.makedirs(self.path, mode=0o755, exist_ok=True)
with open(challenge_path, 'w') as ofd:
ofd.write(validation)
client_acme.answer_challenge(challenge, response) self.acme_client.answer_challenge(challenge, response)
fullchain_pem = client_acme.poll_and_finalize(order).fullchain_pem
fullchain_pem = self.acme_client.poll_and_finalize(order).fullchain_pem
os.remove(challenge_path) os.remove(challenge_path)
return fullchain_pem return fullchain_pem
def renew_cert(domain: str,
account_key_path: str,
privkey_path: str,
csr_path: str,
certs_dir: str,
challenge_dir: str,
directory_url: str,
days_before_renewal: int,
force: bool = False):
logging.info(f"Checking {domain} certificate's expiration date…")
fullchain_path = os.path.join(certs_dir, "fullchain.pem")
cert_expiration_days = get_cert_expiration_days(fullchain_path) class Domain(PrivateKey):
if not force and (cert_expiration_days >= days_before_renewal): def __init__(self, name: str, owner: str, group: str,
logging.info(f"Certificate expires in {cert_expiration_days} days. Nothing to do.") alt_names: List[str] = None,
remaining_days: int = CERT_REMAINING_DAYS,
hooks: List[str] = None):
private_key = os.path.join(SSL_KEYS_DIR, name + '.key')
super().__init__(private_key, owner, group)
self.name = name
self.alt_names = [] if alt_names is None else alt_names
self.remaining_days = remaining_days
self.hooks = [] if hooks is None else hooks
certs_dir = os.path.join(SSL_CERTS_DIR, name + '.d')
self.csr = os.path.join(SSL_CSR_DIR, name + '.csr')
self.cert = os.path.join(certs_dir, 'cert.pem')
self.chain_cert = os.path.join(certs_dir, 'chain.pem')
self.fullchain_cert = os.path.join(certs_dir, 'fullchain.pem')
self.cert_expiration_days = None
def check_certificate_expiration_date(self) -> bool:
"""Indicate whether the certificate will expire soon or not.
:returns: True if the certificate expires soon.
:rtype: bool
"""
if self.cert_expiration_days is None:
logging.debug(f"Checking '{self.cert}' certificate expiration "
"date")
try:
with open(self.cert, 'rb') as pem_in:
cert_pem = crypto.load_certificate(crypto.FILETYPE_PEM,
pem_in.read())
except IOError as e:
logging.warning(f"Unable to load certificate: {e}")
self.cert_expiration_days = float("-inf")
return True
now = datetime.now()
cert_raw_expiration_date = cert_pem.get_notAfter().decode()
cert_expiration_date = datetime.strptime(cert_raw_expiration_date,
OPENSSL_DATE_FORMAT)
self.cert_expiration_days = (cert_expiration_date - now).days
logging.info(f"Certificate expires in {self.cert_expiration_days} "
"days.")
return self.cert_expiration_days <= self.remaining_days
def renew_cert(self, challenge: Challenge, force: bool = False) -> None:
if not (force or self.check_certificate_expiration_date()):
return return
logging.info(f"Renewing {self.name} certificates")
logging.info(f"Certificate expires in {cert_expiration_days} days! Renewing certificate…") csr_pem = self.load_or_create_csr()
fullchain_pem = challenge.run(csr_pem)
logging.info(f"Loading account key from {account_key_path}") logging.info(f"Saving {self.name} certificates")
with open(account_key_path, 'rb') as pem_in:
account_pem = crypto.load_privatekey(crypto.FILETYPE_PEM, pem_in.read())
account_jwk = jose.JWKRSA(key=account_pem.to_cryptography_key())
account_jwk_pub = account_jwk.public_key()
csr_pem = load_or_create_csr(domain, csr_path, privkey_path)
client_network = client.ClientNetwork(account_jwk, user_agent=USER_AGENT)
directory = messages.Directory.from_json(client_network.get(directory_url).json())
client_acme = client.ClientV2(directory, net=client_network)
logging.info("Registering with ACME account…")
# Here we assume we already have an account
registration_message = messages.NewRegistration(
key=account_jwk_pub,
only_return_existing=True)
registration_response = client_acme._post(directory["newAccount"], registration_message)
account = client_acme._regr_from_response(registration_response)
client_acme.net.account = account
logging.info("Ordering ACME challenge…")
order = client_acme.new_order(csr_pem)
logging.info("Selecting HTTP-01 ACME challenge…")
challenge = select_http01_challenge(order)
logging.info("Performing HTTP-01 ACME challenge…")
fullchain_pem = perform_http01_challenge(client_acme, challenge, order, challenge_dir)
logging.info(f"Writing {domain} certificates into {certs_dir}")
certs_pem = [] certs_pem = []
for line in fullchain_pem.split('\n'): for line in fullchain_pem.split('\n'):
if 'BEGIN CERTIFICATE' in line: if 'BEGIN CERTIFICATE' in line:
@ -163,55 +239,93 @@ def renew_cert(domain: str,
if 'END CERTIFICATE' in line: if 'END CERTIFICATE' in line:
certs_pem.append(cert_pem) certs_pem.append(cert_pem)
cert_path = os.path.join(certs_dir, "cert.pem") logging.info(f"Writing '{self.cert}' certificate")
with open(cert_path, 'w') as pem_out: cert_dir = os.path.dirname(self.cert)
os.makedirs(cert_dir, mode=0o755, exist_ok=True)
with open(self.cert, 'w') as pem_out:
pem_out.write(certs_pem[0]) pem_out.write(certs_pem[0])
chain_path = os.path.join(certs_dir, "chain.pem") logging.info(f"Writing '{self.chain_cert}' chain certificate")
with open(chain_path, 'w') as pem_out: chain_cert_dir = os.path.dirname(self.chain_cert)
os.makedirs(chain_cert_dir, mode=0o755, exist_ok=True)
with open(self.chain_cert, 'w') as pem_out:
pem_out.write(''.join(certs_pem[1:])) pem_out.write(''.join(certs_pem[1:]))
with open(fullchain_path, 'w') as pem_out: logging.info(f"Writing '{self.fullchain_cert}' full chain certificate")
fullchain_cert_dir = os.path.dirname(self.fullchain_cert)
os.makedirs(fullchain_cert_dir, mode=0o755, exist_ok=True)
with open(self.fullchain_cert, 'w') as pem_out:
pem_out.write(fullchain_pem) pem_out.write(fullchain_pem)
if __name__ == '__main__': self.run_hooks()
import argparse
def load_or_create_csr(self) -> str:
"""Load or create a CSR for the domain.
:returns: The CSR in PEM file format.
:rtype: str
"""
logging.info(f"Loading {self.name} CSR file from '{self.csr}'")
try:
with open(self.csr, 'rb') as pem_in:
csr = pem_in.read()
csr_pem = crypto.load_certificate_request(crypto.FILETYPE_PEM, csr)
except IOError as e:
logging.warning(f"Unable to load CSR file: {e}")
csr = self.create_csr()
logging.info("Checking if CSR contains all the domains")
domain_names = set()
for ext in csr_pem.get_extensions():
if ext.get_short_name().decode() != "subjectAltName":
continue
subject_domains = str(ext).split(',')
for subject_domain in subject_domains:
_, domain = str(subject_domain).split(':')
domain_names.add(domain)
domain_names_diff = domain_names & set([self.name] + self.alt_names)
if len(domain_names_diff) > 0:
logging.warning(f"Differences found in CSR: {domain_names_diff}")
csr = self.create_csr()
return csr
def create_csr(self):
private_key_pem = self.load_or_create_private_key()
private_key = crypto.dump_privatekey(crypto.FILETYPE_PEM,
private_key_pem)
logging.info(f"Generating a new CSR")
csr = crypto_util.make_csr(private_key, [self.name] + self.alt_names)
logging.info(f"Writing CSR file into '{self.csr}'")
csr_dir = os.path.dirname(self.csr)
os.makedirs(csr_dir, mode=0o755, exist_ok=True)
with open(self.csr, 'wb') as pem_out:
pem_out.write(csr)
return csr
def run_hooks(self) -> None:
for hook in self.hooks:
logging.info(f"Running hook: '{hook}'")
subprocess.run(hook.split())
def main():
parser = argparse.ArgumentParser( parser = argparse.ArgumentParser(
description="Renew ACME certificates for a list of domains. This script assumes you already have an account on the CA server and a private key for each certificate.", description="Renew ACME certificates for a list of domains. This "
"script assumes you already have an account on the CA "
"server and a private key for each certificate.",
formatter_class=argparse.ArgumentDefaultsHelpFormatter) formatter_class=argparse.ArgumentDefaultsHelpFormatter)
parser.add_argument("domains", nargs='+', parser.add_argument("--config", "-c", default=SSL_CONFIG_FILE,
help="List of domain names for which to renew the certificate.") help="Path to the config file.")
parser.add_argument("--account_key", "-a", parser.add_argument("--quiet", "-q", action="store_true",
default=os.path.join(SSL_CONFIG_DIR, "accounts", "acme_account.key"),
help="Path to the account key.")
parser.add_argument("--privkey", "-p",
default=os.path.join(SSL_CONFIG_DIR, "private", "{domain}.pem"),
help="Path to the private certificate.")
parser.add_argument("--csr", "-r",
default=os.path.join(SSL_CONFIG_DIR, "csr", "{domain}.pem"),
help="Path to the CSR file. If the file doesn't exist, it will be generated from the private key and the domain name.")
parser.add_argument("--certs", "-o",
default=os.path.join(SSL_CONFIG_DIR, "certs", "{domain}.d"),
help="Path to the certificates directory.")
parser.add_argument("--challenge", "-c",
default="/var/www/html/.well-known/acme-challenge",
help="Path to the challenge directory.")
parser.add_argument("--directory_url", "-u",
default="https://acme-v02.api.letsencrypt.org/directory",
help="Directory URL on which performing ACME challenges. Only ACME v2 is supported.")
parser.add_argument("--days", "-d", type=int,
default=30,
help="Days before attempting to renew the certificates.")
parser.add_argument("--quiet", "-q",
action="store_true",
help="Quiet mode.") help="Quiet mode.")
parser.add_argument("--verbose", "-v", parser.add_argument("--verbose", "-v", action="store_true",
action="store_true",
help="Increase verbosity.") help="Increase verbosity.")
parser.add_argument("--force", "-f", parser.add_argument("--force", "-f", action="store_true",
action="store_true", help="Force certificates renewal without checking "
help="Force certificates renewal without checking their expiration date.") "their expiration date.")
args = parser.parse_args() args = parser.parse_args()
if args.quiet: if args.quiet:
@ -221,21 +335,59 @@ if __name__ == '__main__':
else: else:
log_level = logging.INFO log_level = logging.INFO
logging.basicConfig(stream=sys.stdout, level=log_level, format="%(levelname)s:%(message)s") logging.basicConfig(stream=sys.stdout, level=log_level,
format="%(levelname)s:%(message)s")
for domain in args.domains: try:
account_key = args.account_key.format(domain=domain) with open(args.config, 'r') as ifd:
privkey = args.privkey.format(domain=domain) config = yaml.safe_load(ifd)
csr = args.csr.format(domain=domain) except IOError as e:
certs_dir = args.certs.format(domain=domain) logging.error(f"Unable to load config file: {e}")
challenge_dir = args.challenge.format(domain=domain) return 1
renew_cert(domain, try:
account_key_path=account_key, domains_to_renew = []
privkey_path=privkey, for domain_name, domain_details in config["domains"].items():
csr_path=csr, remaining_days = domain_details.get("remaining_days",
certs_dir=certs_dir, CERT_REMAINING_DAYS)
challenge_dir=challenge_dir, domain = Domain(domain_name,
directory_url=args.directory_url, owner=domain_details.get("owner", "root"),
days_before_renewal=args.days, group=domain_details.get("group", SSL_GROUP),
force=args.force) alt_names=domain_details.get("alt_names"),
remaining_days=remaining_days,
hooks=domain_details.get("hooks"))
if not (args.force or domain.check_certificate_expiration_date()):
logging.info(f"{domain.name} certificate will not be renewed.")
continue
logging.info(f"{domain.name} certificate will be renewed.")
domains_to_renew.append(domain)
if len(domains_to_renew) == 0:
logging.info("No domain to renew. Aborting.")
return 0
account_config = config["account"]
account = Account(
private_key=account_config.get("private_key", ACME_ACCOUNT_KEY),
email=account_config["email"],
owner=account_config.get("owner", "root"),
group=account_config.get("group", "root"))
directory_url = config.get("directory_url", LETSENCRYPT_DIRECTORY_URL)
acme_client = account.register(directory_url)
challenge_dir = config.get("challenge_dir", ACME_CHALLENGE_DIR)
challenge = Challenge(challenge_dir, acme_client)
for domain in domains_to_renew:
domain.renew_cert(challenge, force=args.force)
except Exception as e:
logging.exception(e)
return 2
if __name__ == '__main__':
import argparse
exit(main())

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@ -3,8 +3,13 @@
gather_facts: no gather_facts: no
tasks: tasks:
- name: Update apt cache - name: Update APT cache
raw: apt update raw: apt update
- name: Install python3 package - name: Install Python3 package
raw: apt install -y --no-install-recommends python3 raw: apt install -y --no-install-recommends python3
- name: Install cron package
package:
name: cron
state: present

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@ -1,74 +0,0 @@
- name: Create {{ domain_name }} certificates directory
file:
path: "{{ acme_certs_dir }}/{{ domain_name }}.d"
state: directory
owner: root
group: "{{ acme_ssl_group }}"
mode: "755"
tags: acme_install
- name: Generate Let's Encrypt account key
openssl_privatekey:
path: "{{ acme_accounts_dir }}/{{ acme_account_key }}"
owner: root
group: root
mode: "600"
type: RSA
size: 4096
tags: acme_account
- name: Generate Let's Encrypt private key for {{ domain_name }}
openssl_privatekey:
path: "{{ acme_keys_dir }}/{{ domain_name }}.pem"
owner: root
group: "{{ acme_ssl_group }}"
mode: "640"
type: RSA
size: 4096
- name: Generate Let's Encrypt CSR for {{ domain_name }}
openssl_csr:
path: "{{ acme_csr_dir }}/{{ domain_name }}.csr"
owner: root
group: "{{ acme_ssl_group }}"
mode: "644"
privatekey_path: "{{ acme_keys_dir }}/{{ domain_name }}.pem"
common_name: "{{ domain_name }}"
- name: Begin Let's Encrypt challenges for {{ domain_name }}
acme_certificate:
acme_directory: "{{ acme_directory }}"
acme_version: "{{ acme_version }}"
account_key_src: "{{ acme_accounts_dir }}/{{ acme_account_key }}"
account_email: "{{ acme_email }}"
terms_agreed: yes
challenge: http-01
csr: "{{ acme_csr_dir }}/{{ domain_name }}.csr"
dest: "{{ acme_certs_dir }}/{{ domain_name }}.d/cert.pem"
fullchain_dest: "{{ acme_certs_dir }}/{{ domain_name }}.d/fullchain.pem"
remaining_days: 30
register: _acme_challenge
- name: Implement and complete Let's Encrypt challenge for {{ domain_name }}
when: _acme_challenge is changed
block:
- name: Implement http-01 challenge files for {{ domain_name }}
copy:
content: "{{ _acme_challenge.challenge_data[domain_name]['http-01'].resource_value }}"
dest: "{{ acme_challenge_dir }}/{{ _acme_challenge.challenge_data[domain_name]['http-01'].resource }}"
owner: root
group: root
mode: "644"
- name: Complete Let's Encrypt challenges for {{ domain_name }}
acme_certificate:
acme_directory: "{{ acme_directory }}"
acme_version: "{{ acme_version }}"
account_key_src: "{{ acme_accounts_dir }}/{{ acme_account_key }}"
account_email: "{{ acme_email }}"
challenge: http-01
csr: "{{ acme_csr_dir }}/{{ domain_name }}.csr"
dest: "{{ acme_certs_dir }}/{{ domain_name }}.d/cert.pem"
chain_dest: "{{ acme_certs_dir }}/{{ domain_name }}.d/chain.pem"
fullchain_dest: "{{ acme_certs_dir }}/{{ domain_name }}.d/fullchain.pem"
data: "{{ _acme_challenge }}"

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@ -1,48 +1,59 @@
- name: Install ACME dependencies - name: Install ACME dependencies
package: package:
name: python3-acme name: "{{ package }}"
state: present state: present
loop: "{{ acme_packages }}"
loop_control:
loop_var: package
tags: acme_install tags: acme_install
- name: Install SSL dependencies - name: Install SSL dependencies
package: package:
name: ssl-cert name: ssl-cert
state: present state: present
tags: acme_install
- name: Create Let's Encrypt config directories - name: Create ACME config directories
file: file:
path: "{{ config_dir }}" path: "{{ config_dir }}"
state: directory state: directory
owner: root owner: root
group: "{{ acme_ssl_group }}" group: root
mode: "711" mode: "755"
loop: loop:
- "{{ acme_config_dir }}" - "{{ acme_config_dir }}"
- "{{ acme_keys_dir }}" - "{{ acme_certs_dir }}"
- "{{ acme_accounts_dir }}"
- "{{ acme_csr_dir }}" - "{{ acme_csr_dir }}"
loop_control: loop_control:
loop_var: config_dir loop_var: config_dir
tags: acme_install tags: acme_install
- name: Create challenge directory - name: Create ACME private keys directory
file: file:
path: "{{ acme_challenge_dir }}/.well-known/acme-challenge" path: "{{ acme_keys_dir }}"
state: directory
owner: root
group: "{{ acme_ssl_group }}"
mode: "640"
tags: acme_install
- name: Create ACME accounts directory
file:
path: "{{ acme_accounts_dir }}"
state: directory state: directory
owner: root owner: root
group: root group: root
mode: "755" mode: "640"
tags: acme_install tags: acme_install
- name: Perform ACME challenge for each domain - name: Copy ACME config file
include_tasks: copy:
file: acme_challenge.yml content: "{{ acme_config | to_nice_yaml(indent=2) }}"
apply: dest: "{{ acme_config_file }}"
tags: acme_challenge owner: root
loop: "{{ acme_domains | unique }}" group: root
loop_control: mode: "600"
loop_var: domain_name tags: [acme_install, acme_config]
tags: acme_challenge
- name: Create directory for certificate renewal tool - name: Create directory for certificate renewal tool
file: file:
@ -51,31 +62,38 @@
group: root group: root
mode: "755" mode: "755"
state: directory state: directory
tags: acme_renew tags: acme_install
- name: Copy script to renew ACME certificates - name: Copy script to renew ACME certificates
copy: copy:
src: acme_renew_cert.py src: acme_renew_cert.py
dest: /opt/acme/acme_renew_cert.py dest: "{{ acme_script_dir }}/acme_renew_cert.py"
owner: root owner: root
group: root group: root
mode: "755" mode: "755"
tags: acme_renew tags: acme_install
- name: Create '{{ acme_script_bin }}' symlink for ACME renewal script
file:
src: "{{ acme_script_dir }}/acme_renew_cert.py"
dest: "{{ acme_script_bin }}"
state: link
owner: root
group: root
mode: "755"
tags: acme_install
- name: Perform ACME challenge for each domain
command: acme-renew-cert -v -c {{ acme_config_file | quote }}
tags: acme_challenge
- name: Setup cron job for ACME certificates renewal of {{ domain_name }} - name: Setup cron job for ACME certificates renewal of {{ domain_name }}
cron: cron:
name: acme renew {{ domain_name }} cert user: root
job: >- name: acme-renew-cert
bash -c 'sleep $((RANDOM \% 3600))' && /opt/acme/acme_renew_cert.py {{ domain_name }} -q cron_file: acme-renew-cert
-a {{ (acme_accounts_dir + '/' + acme_account_key) | quote }} job: "{{ acme_script_bin }} -q {{ acme_config_file | quote }}"
-p {{ acme_keys_dir | quote }}/{domain}.pem
-r {{ acme_csr_dir | quote }}/{domain}.csr
-o {{ acme_certs_dir | quote }}/{domain}.d
-c {{ acme_challenge_dir | quote }}/.well-known/acme-challenge
minute: "30" minute: "30"
hour: "2" hour: "2"
state: present state: present
loop: "{{ acme_domains | unique }}" tags: acme_cron
loop_control:
loop_var: domain_name
tags: acme_renew

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@ -1 +1,4 @@
acme_version: 2 acme_version: 2
acme_packages:
- python3-acme
- python3-yaml