Horizon placement API calls don't use SSL option from local_settings

[Michal Wyszkowski]

Since commit "Use Placement API along with the hypervisor stats" Horizon displays
"Error: Unable to retrieve providers information." (with SSLError) and does not load Resource Provider table and host-based usage data in webgui Hypervisors tab.

Issue occurs when custom RootCA is used for api certs and Horizon is installed in venv (so python use CA certs provided by certifi).

Setting OPENSTACK_SSL_NO_VERIFY or OPENSTACK_SSL_CACERT in local_settings does not resolve this issue, like this options were omitted during placement api calls.

[Przemysław Kuczyński (przemekkuczynski)]

Same error here on kolla-ansible 2023.2

In gui click on admin -> compute -> hypervisor we see

Error: Unable to retrieve providers information. Details

Could not find versioned identity endpoints when attempting to authenticate. Please check that your auth_url is correct. SSL exception connecting to https://xxx:5000: HTTPSConnectionPool(host='xxx', port=5000): Max retries exceeded with url: / (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self-signed certificate in certificate chain (_ssl.c:1007)')))

Error: Unable to retrieve providers statistics. Details

Could not find versioned identity endpoints when attempting to authenticate. Please check that your auth_url is correct. SSL exception connecting to https://xxx:5000: HTTPSConnectionPool(host='xxx', port=5000): Max retries exceeded with url: / (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self-signed certificate in certificate chain (_ssl.c:1007)')))