Minimal multi-stage docker build

cloudflare-ddns.py

@@ -104,6 +104,27 @@ def cf_api(endpoint, method, config, headers={}, data=False):
 
     return response.json()
 
-for ip in getIPs():
-    print("Checking " + ip["type"] + " records")
-    commitRecord(ip)
+# Scheduling
+import time, traceback
+
+def every(delay, task):
+  next_time = time.time() + delay
+  while True:
+    time.sleep(max(0, next_time - time.time()))
+    try:
+      task()
+    except Exception:
+      traceback.print_exc()
+      # in production code you might want to have this instead of course:
+      # logger.exception("Problem while executing repetitive task.")
+    # skip tasks if we are behind schedule:
+    next_time += (time.time() - next_time) // delay * delay + delay
+
+def updateIPs():
+    for ip in getIPs():
+        print("Checking " + ip["type"] + " records")
+        commitRecord(ip)
+
+updateIPs()
+import threading
+threading.Thread(target=lambda: every(60*15, updateIPs)).start()