Initialer Commit

image_tags.py

@@ -0,0 +1,51 @@
+import requests
+from datetime import datetime
+import argparse
+import json
+
+TAGS = "https://registry.hub.docker.com/v2/repositories/{image}/tags/"
+LIB_PREFIX = "library/"
+
+TAG_STORE = {}
+
+def get_tags(image):
+	if "/" not in image:
+		image = LIB_PREFIX + image
+	url = TAGS.format(image=image)
+	result = requests.get(url)
+	data = result.json()
+	tags = {}
+	for entry in data["results"]:
+		tags[entry["name"]] = datetime.strptime(entry["last_updated"], "%Y-%m-%dT%H:%M:%S.%fZ")
+	return tags
+
+def get_new_tags(image):
+	if not ":" in image:
+		print("using implicit latest, skip")
+		return
+	image_name, current_tag = image.split(":")
+	if not image_name in TAG_STORE:
+		TAG_STORE[image_name] = get_tags(image_name)
+	if current_tag in TAG_STORE[image_name]:
+		first_update = TAG_STORE[image_name][current_tag]
+	else:
+		print("!!! FALLBACK!")
+		first_update = TAG_STORE[image_name].entry_set()[0]
+	print(first_update)
+	new_tags = {}
+	for tag in TAG_STORE[image_name]:
+		print("("+str(tag)+")")
+		update = TAG_STORE[image_name][tag]
+		if update > first_update:
+			new_tags[tag] = str(update)
+	return new_tags
+
+if __name__=="__main__":
+	parser = argparse.ArgumentParser(description="list new docker image tags")
+	parser.add_argument("--image", "-i", nargs="+")
+	
+	args= parser.parse_args()
+	for i in args.image:
+		print(i)
+		print(json.dumps(get_new_tags(i), indent=1))
+# call with: `python3 image_tags.py -i alpine ubuntu:xenial debian`