Add retries in session (#245)

* Add retries in session

* Fix configuration

* Fix typo

* Add connect option to retry in connection error

* Remove extra line

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Co-authored-by: herodes1991 <eloy.maillo@Eloys-MacBook-Pro.local>

fiaas_deploy_daemon/__init__.py

@@ -28,6 +28,7 @@
 import requests
 from k8s import config as k8s_config
 from prometheus_client import Info
+from requests.adapters import HTTPAdapter, Retry
 
 from .config import Configuration
 from .crd import CustomResourceDefinitionBindings, DisabledCustomResourceDefinitionBindings
@@ -57,6 +58,9 @@ def configure(self, bind):
 
     def provide_session(self, config: Configuration):
         session = requests.Session()
+        if config.extension_hook_url is not None:
+            retries = Retry(total=5, backoff_factor=0.1, connect=5)
+            session.mount(config.extension_hook_url, HTTPAdapter(max_retries=retries))
         if config.proxy:
             session.proxies = {scheme: config.proxy for scheme in ("http", "https")}
         if config.debug: