CNAME records

- Recommended way to configure multiple subdomains per IP address is now via CNAME records. Notes added in README.
- Updated config.json subdomain examples to reflect how base domain is appended in code.

.gitignore

@@ -0,0 +1,125 @@
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+pip-wheel-metadata/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+.python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# celery beat schedule file
+celerybeat-schedule
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/

README.md

@@ -20,6 +20,9 @@ Values explained:
 "proxied": false (defaults to false. Make it true if you want CDN/SSL benefits from cloudflare. This usually disables SSH)
 ```
 
+## :fax: Hosting multiple domains on the same IP?
+You can save yourself some trouble when hosting multiple domains pointing to the same IP address (in the case of Traefik) by defining one A & AAAA record  'ddns.example.com' pointing to the IP of the server that will be updated by this DDNS script. For each subdomain, create a CNAME record pointing to 'ddns.example.com'. Now you don't have to manually modify the script config every time you add a new subdomain to your site!
+
 ## :running: Running
 
 This script requires Python 3.5+, which comes preinstalled on the latest version of Raspbian. Download/clone this repo and execute `./sync`, which will set up a virtualenv, pull in any dependencies, and fire the script.

cloudflare-ddns.py

@@ -47,7 +47,8 @@ def commitRecord(ip):
                 "content": ip["ip"],
                 "proxied": c["proxied"]
             }
-            list = cf_api("zones/" + c['zone_id'] + "/dns_records&per_page=100?type=" + ip["type"], "GET", c)
+            list = cf_api(
+                "zones/" + c['zone_id'] + "/dns_records&per_page=100?type=" + ip["type"], "GET", c)
             full_subdomain = subdomain + "." + base_domain_name
             dns_id = ""
             for r in list["result"]:
@@ -71,7 +72,8 @@ def commitRecord(ip):
     # Delete duplicate, stale records
     for identifier in stale_record_ids:
         print("Deleting stale record " + str(identifier))
-        response = cf_api("zones/" + c['zone_id'] + "/dns_records/" + identifier, "DELETE", c)
+        response = cf_api(
+            "zones/" + c['zone_id'] + "/dns_records/" + identifier, "DELETE", c)
 
     return True
 

config.json

@@ -5,8 +5,8 @@
       "account_email": "your_email_here",
       "zone_id": "your_zone_id_here",
       "subdomains": [
-        "one.example.com",
-        "two.example.com"
+        "",
+        "subdomain"
       ],
       "proxied": false
     }