check ratelimit

our health check job start multibranch at the same time, which maybe cause API call exceed rate limit, check rate limit before do anything if the number of requests remaining in the current rate limit window, sleep until next window come.

doozerlib/cli/images_streams.py

@@ -5,6 +5,7 @@
 import json
 import hashlib
 import time
+import datetime
 import random
 
 from github import Github, UnknownObjectException, GithubException
@@ -573,6 +574,9 @@ def images_upstreampulls(runtime):
         if public_repo_url in upstreams:
             continue
         upstreams.add(public_repo_url)
+        rateLimit = github_client.get_rate_limit()
+        if rateLimit.core.remaining < 1000:
+            time.sleep((rateLimit.core.reset - datetime.datetime.now()).seconds)
         public_source_repo = github_client.get_repo(f'{org}/{repo_name}')
         pulls = public_source_repo.get_pulls(state='open', sort='created')
         for pr in pulls: