Message d'erreur

Good morning who can help me to work around this problem: root@controller certs(keystone)# openstack project create --domain default --description "Service Project" service Failed to discover available identity versions when contacting https://controller.cloud.net:5000/v3. Attempting to parse version from URL. SSL exception connecting to https://controller.cloud.net:5000/v3/auth/tokens: HTTPSConnectionPool(host='controller.cloud.net', port=5000): Max retries exceeded with url: /v3/auth/tokens (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self-signed certificate (_ssl.c:997)')))