Hello, Following the instruction here (https://docs.openstack.org/project-deploy-guide/openstack-ansible/2025.1/) step by step to deploy openstack with openstack-ansible stable/2025.1 release on four computers (Infra1, Infra2, compute1, compute2) with a fifth computer as deployer (localhost)。 During the execution of command “openstack-ansible setup-infrastructure.yml” error pops up and installation broke. The log is as the following: ... TASK [repo_server : Ensure deploy host u-c directory exists] ******************************************************************************************* ok: [infra1-repo-container-769e886d -> localhost] TASK [repo_server : Retrieve upper constraints using https] ******************************************************************************************** FAILED - RETRYING: [infra1-repo-container-769e886d -> localhost]: Retrieve upper constraints using https (5 retries left). FAILED - RETRYING: [infra1-repo-container-769e886d -> localhost]: Retrieve upper constraints using https (4 retries left). FAILED - RETRYING: [infra1-repo-container-769e886d -> localhost]: Retrieve upper constraints using https (3 retries left). FAILED - RETRYING: [infra1-repo-container-769e886d -> localhost]: Retrieve upper constraints using https (2 retries left). FAILED - RETRYING: [infra1-repo-container-769e886d -> localhost]: Retrieve upper constraints using https (1 retries left). fatal: [infra1-repo-container-769e886d -> localhost]: FAILED! => attempts: 5 changed: false dest: /etc/openstack_deploy/upper-constraints/upper_constraints_bfd91c04caf498be2bfda0732a2a0f9fa9306e07.txt elapsed: 0 gid: 0 group: root mode: '0644' msg: 'Request failed: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1000)>' owner: root size: 13007 state: file uid: 0 url: https://releases.openstack.org/constraints/upper/bfd91c04caf498be2bfda0732a2... Can anybody please give a clue on what is going on and how to do troubleshooting? Thanks a lot in advance! Regards, Hewi