Initial version

main.py

@@ -0,0 +1,64 @@
+#!/usr/bin/env python3
+
+import os
+import sys
+from dotenv import load_dotenv
+import time
+
+from lib import *
+
+config = {}
+ipam4_old = {}
+
+
+def main():
+    get_config()
+
+    if not config['one_shot']:
+        while True:
+            loop()
+            time.sleep(config['refresh_interval'])
+
+    loop()
+
+
+def loop():
+    container.init(config)
+    ipam4 = container.generate_container_list()
+    global ipam4_old
+
+    additions4 = determine_additions(ipam4, ipam4_old)
+    deletions4 = determine_deletions(ipam4, ipam4_old)
+
+    nsupdate.init(config)
+    nsupdate.delete_records(deletions4)
+    nsupdate.add_records(additions4)
+
+    ipam4_old = ipam4
+
+
+def get_config():
+    config_file = sys.argv[1] if len(sys.argv) >= 2 else 'config'
+    load_dotenv(config_file)
+
+    config['domain'] = os.environ.get("DOMAIN")
+    config['hostname_label'] = os.environ.get("HOSTNAME_LABEL")
+    config['default_network'] = os.environ.get("DEFAULT_NETWORK")
+    config['refresh_interval'] = int(os.environ.get("REFRESH_INTERVAL"))
+    config['one_shot'] = os.environ.get("ONE_SHOT").lower() in ['true', 'yes']
+    config['nameserver'] = os.environ.get("NAMESERVER")
+    config['tsig_name'] = os.environ.get("TSIG_NAME")
+    config['tsig_key'] = os.environ.get("TSIG_KEY")
+
+
+def determine_additions(ipam, ipam_old):
+    return {k: v for k, v in ipam.items() if k not in ipam_old}
+
+
+def determine_deletions(ipam, ipam_old):
+    return {k: v for k, v in ipam_old.items() if k not in ipam}
+    pass
+
+
+if __name__ == "__main__":
+    main()