There is apparently an issue with docker-py and requests for the URL scheme http+docker:
docker-002
$ docker --version Docker version 27.0.2, build 912c1dd $ salt-call --versions Salt Version: Salt: 3006.9 […] docker-py: 5.0.3 […] $ deploy-container openfire […] [ERROR ] An exception occurred in this state: Traceback (most recent call last): File "/opt/saltstack/salt/lib/python3.10/site-packages/requests/adapters.py", line 633, in send conn = self.get_connection_with_tls_context( File "/opt/saltstack/salt/lib/python3.10/site-packages/requests/adapters.py", line 489, in get_connection_with_tls_context conn = self.poolmanager.connection_from_host( File "/opt/saltstack/salt/lib/python3.10/site-packages/urllib3/poolmanager.py", line 246, in connection_from_host return self.connection_from_context(request_context) File "/opt/saltstack/salt/lib/python3.10/site-packages/urllib3/poolmanager.py", line 258, in connection_from_context raise URLSchemeUnknown(scheme) urllib3.exceptions.URLSchemeUnknown: Not supported URL scheme http+docker […]
Requests is installed at version 2.32.3. If downgraded to 2.31.0, that would fix the issue.
If we want to fix that at docker-py level, we can also apply this patch: https://github.com/docker/docker-py/pull/3257/files