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diff --git a/roles/paas-docker/letsencrypt/files/acme-dns-auth.py b/roles/paas-docker/letsencrypt/files/acme-dns-auth.py
new file mode 100755
--- /dev/null
+++ b/roles/paas-docker/letsencrypt/files/acme-dns-auth.py
@@ -0,0 +1,161 @@
+#!/usr/bin/env python
+
+# -------------------------------------------------------------
+# PaaS Docker
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+# Author: Joona Hoikkala
+# License: MIT
+# Source file: roles/paas-docker/letsencrypt/files/acme-dns-auth.py
+# -------------------------------------------------------------
+#
+# <auto-generated>
+# This file is managed by our rOPS SaltStack repository.
+#
+# Changes to this file may cause incorrect behavior
+# and will be lost if the state is redeployed.
+# </auto-generated>
+
+import json
+import os
+import requests
+import sys
+
+ACMEDNS_URL = "https://acme.nasqueron.org"
+STORAGE_PATH = "/etc/letsencrypt/acmedns.json"
+ALLOW_FROM = []
+FORCE_REGISTER = False
+
+DOMAIN = os.environ["CERTBOT_DOMAIN"]
+if DOMAIN.startswith("*."):
+ DOMAIN = DOMAIN[2:]
+VALIDATION_DOMAIN = "_acme-challenge." + DOMAIN
+VALIDATION_TOKEN = os.environ["CERTBOT_VALIDATION"]
+
+
+class AcmeDnsClient(object):
+ """
+ Handles the communication with ACME-DNS API
+ """
+
+ def __init__(self, acmedns_url):
+ self.acmedns_url = acmedns_url
+
+ def register_account(self, allowfrom):
+ """Registers a new ACME-DNS account"""
+
+ if allowfrom:
+ # Include whitelisted networks to the registration call
+ reg_data = {"allowfrom": allowfrom}
+ res = requests.post(self.acmedns_url + "/register",
+ data=json.dumps(reg_data))
+ else:
+ res = requests.post(self.acmedns_url + "/register")
+ if res.status_code == 201:
+ # The request was successful
+ return res.json()
+ else:
+ # Encountered an error
+ msg = ("Encountered an error while trying to register a new "
+ "acme-dns account. HTTP status {}, Response body: {}")
+ print(msg.format(res.status_code, res.text))
+ sys.exit(1)
+
+ def update_txt_record(self, account, txt):
+ """Updates the TXT challenge record to ACME-DNS subdomain."""
+ update = {"subdomain": account['subdomain'], "txt": txt}
+ headers = {"X-Api-User": account['username'],
+ "X-Api-Key": account['password'],
+ "Content-Type": "application/json"}
+ res = requests.post(self.acmedns_url + "/update",
+ headers=headers,
+ data=json.dumps(update))
+ if res.status_code == 200:
+ # Successful update
+ return
+ else:
+ msg = ("Encountered an error while trying to update TXT record in "
+ "acme-dns. \n"
+ "------- Request headers:\n{}\n"
+ "------- Request body:\n{}\n"
+ "------- Response HTTP status: {}\n"
+ "------- Response body: {}")
+ s_headers = json.dumps(headers, indent=2, sort_keys=True)
+ s_update = json.dumps(update, indent=2, sort_keys=True)
+ s_body = json.dumps(res.json(), indent=2, sort_keys=True)
+ print(msg.format(s_headers, s_update, res.status_code, s_body))
+ sys.exit(1)
+
+
+class Storage(object):
+ def __init__(self, storagepath):
+ self.storagepath = storagepath
+ self._data = self.load()
+
+ def load(self):
+ """Reads the storage content from the disk to a dict structure"""
+ data = dict()
+ filedata = ""
+ try:
+ with open(self.storagepath, 'r') as fh:
+ filedata = fh.read()
+ except IOError:
+ if os.path.isfile(self.storagepath):
+ # Only error out if file exists, but cannot be read
+ print("ERROR: Storage file exists but cannot be read")
+ sys.exit(1)
+ try:
+ data = json.loads(filedata)
+ except ValueError:
+ if len(filedata) > 0:
+ # Storage file is corrupted
+ print("ERROR: Storage JSON is corrupted")
+ sys.exit(1)
+ return data
+
+ def save(self):
+ """Saves the storage content to disk"""
+ serialized = json.dumps(self._data)
+ try:
+ with os.fdopen(os.open(self.storagepath, os.O_WRONLY | os.O_CREAT,
+ 0o600), 'w') as fh:
+ fh.truncate()
+ fh.write(serialized)
+ except IOError:
+ print("ERROR: Could not write storage file.")
+ sys.exit(1)
+
+ def put(self, key, value):
+ """Puts the configuration value to storage and sanitize it"""
+ # If wildcard domain, remove the wildcard part as this will use the
+ # same validation record name as the base domain
+ if key.startswith("*."):
+ key = key[2:]
+ self._data[key] = value
+
+ def fetch(self, key):
+ """Gets configuration value from storage"""
+ try:
+ return self._data[key]
+ except KeyError:
+ return None
+
+
+if __name__ == "__main__":
+ # Init
+ client = AcmeDnsClient(ACMEDNS_URL)
+ storage = Storage(STORAGE_PATH)
+
+ # Check if an account already exists in storage
+ account = storage.fetch(DOMAIN)
+ if FORCE_REGISTER or not account:
+ # Create and save the new account
+ account = client.register_account(ALLOW_FROM)
+ storage.put(DOMAIN, account)
+ storage.save()
+
+ # Display the notification for the user to update the main zone
+ print("Please add the following CNAME record to your main DNS zone:\n")
+ print("{} CNAME {}.".format(VALIDATION_DOMAIN, account["fulldomain"]))
+
+ # Update the TXT record in acme-dns instance
+ client.update_txt_record(account, VALIDATION_TOKEN)
diff --git a/roles/paas-docker/letsencrypt/init.sls b/roles/paas-docker/letsencrypt/init.sls
--- a/roles/paas-docker/letsencrypt/init.sls
+++ b/roles/paas-docker/letsencrypt/init.sls
@@ -39,3 +39,12 @@
selinux.fcontext_policy_applied:
- name: /srv/letsencrypt
{% endif %}
+
+# -------------------------------------------------------------
+# Plug-ins
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+
+/srv/letsencrypt/etc/acme-dns-auth:
+ file.managed:
+ - source: salt://roles/paas-docker/letsencrypt/files/acme-dns-auth.py
+ - mode: 755
diff --git a/roles/paas-docker/wrappers/files/certbot.sh b/roles/paas-docker/wrappers/files/certbot.sh
--- a/roles/paas-docker/wrappers/files/certbot.sh
+++ b/roles/paas-docker/wrappers/files/certbot.sh
@@ -16,9 +16,17 @@
# and will be lost if the state is redeployed.
# </auto-generated>
+if [ "$1" = "acme-dns-certonly" ]; then
+ COMMAND=certonly
+ EXTRA_ARGS="--manual --manual-auth-hook /etc/letsencrypt/acme-dns-auth --preferred-challenges dns --debug-challenge"
+else
+ COMMAND=$1
+fi
+shift
+
docker run -it --rm \
-v /srv/letsencrypt/etc:/etc/letsencrypt \
-v /srv/letsencrypt/var:/var/lib/letsencrypt \
-v /srv/letsencrypt/log:/var/log/letsencrypt \
-v /srv/letsencrypt/www:/www \
- certbot/certbot:latest "$@"
+ certbot/certbot:latest "$COMMAND" "$@" "$EXTRA_ARGS"

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