The script it self can run forver now

* Add option for the script to repeat itself
  after N seconds

* Add a Dockerfile so that this could be run
  inside docker

Dockerfile

@@ -0,0 +1,13 @@
+FROM python:3.7-buster
+
+LABEL maintainer=david@dme.ninja
+LABEL version="0.1"
+
+# Copy scripts and requirements.txt
+COPY src/ /gandi-live-dns
+COPY requirements.txt /requirements.txt
+
+# Install script requirements.txt
+RUN pip install -r /requirements.txt
+
+CMD ["python", "/gandi-live-dns/gandi-live-dns.py", "-v", "-r", "3600"]

README.md

@@ -99,12 +99,14 @@ Status Code: 201 , DNS Record Created , IP updated for subdomain3
 
 ```
 root@dyndns:~/gandi-live-dns-master/src# ./gandi-live-dns.py -h
-usage: gandi-live-dns.py [-h] [-f]
+usage: gandi-live-dns.py [-h] [-f] [-v] [-r]
 
 optional arguments:
-  -h, --help     show this help message and exit
-  -f, --force    force an update/create
-
+  -h, --help            show this help message and exit
+  -v, --verbose         increase output verbosity
+  -f, --force           force an update/create
+  -r REPEAT, --repeat REPEAT
+                        keep running and repeat every N seconds
 ```
 
 The force option runs the script, even when no IP change has been detected. 
@@ -135,6 +137,11 @@ Run the script every five minutes.
 ```
 */5 * * * * /root/gandi-live-dns-master/src/gandi-live-dns.py >/dev/null 2>&1 
 ```
+
+### Run with Docker
+
+Use the docker file to build the image. With docker, the script will run every 3600 seconds. (This value can be changed in the Dockerfile.
+
 ### Limitations
 The XML-RPC API has a limit of 30 requests per 2 seconds, so i guess it's safe to update 25 subdomains at once with the REST API. 
 

src/gandi-live-dns.py

@@ -4,10 +4,12 @@
 Gandi v5 LiveDNS - DynDNS Update via REST API and CURL/requests
 
 @author: cave
+@author: dvdme
 License GPLv3
 https://www.gnu.org/licenses/gpl-3.0.html
 
 Created on 13 Aug 2017
+Forked on 08 Dec 2019
 http://doc.livedns.gandi.net/
 http://doc.livedns.gandi.net/#api-endpoint -> https://dns.gandi.net/api/v5/
 '''
@@ -17,6 +19,7 @@ import requests
 import ipaddress
 import config
 import argparse
+import threading as th
 from pprint import pprint
 
 
@@ -111,7 +114,7 @@ def update_records(uuid, dynIP, subdomain, is_ipv6=False, verbose=False):
 
 
 
-def main(force_update, verbosity):
+def main(force_update, verbosity, repeat):
 
     if verbosity:
         print('verbosity turned on')
@@ -119,6 +122,9 @@ def main(force_update, verbosity):
     else:
         verbose =False
 
+    if repeat and verbose:
+        print(f'repeat turned on, will repeat every {repeat} seconds')
+
     #get zone ID from Account
     uuid = get_uuid()
 
@@ -150,10 +156,16 @@ def main(force_update, verbosity):
             print (f'IP Address Mismatch - going to update the DNS Records for the subdomains with new IP {dynIP}')
             for sub in subdomains:
                 update_records(uuid, dynIP, sub, is_ipv6, verbose)
+    if repeat:
+        if verbosity:
+            print(f'Repeating in {repeat} seconds')
+        th.Timer(repeat, main, [force_update, verbosity, repeat]).start()
+
 
 if __name__ == '__main__':
     parser = argparse.ArgumentParser()
     parser.add_argument('-v', '--verbose', help='increase output verbosity', action='store_true')
     parser.add_argument('-f', '--force', help='force an update/create', action='store_true')
+    parser.add_argument('-r', '--repeat', type=int, help='keep running and repeat every N seconds')
     args = parser.parse_args()
-    main(args.force, args.verbose)
+    main(args.force, args.verbose, args.repeat)