Keystone certs expire every year From /etc/keystone/ssl/certs # This makes the Certificate Signing Request (CSR) {{{ openssl req -newkey rsa:2048 -keyout signing_key.pem -keyform PEM -out signing_\ cert_req.pem -outform PEM -config openssl.conf -nodes Unset Unset Unset Unset Unset US clemson-clemson-control-1 }}} Create the signing_cert {{{ openssl ca -config openssl.conf -keyfile cakey.pem -cert ca.pem -in signing_cer\ t_req.pem -out signing_cert_new.pem y y }}} Move the signing key and change ownership: {{{ mv signing_key.pem ../private chown keystone.keystone signing_cert_new.pem sudo keystone-manage pki_setup --keystone-user keystone --keystone-group keystone }}} The other openstack services maintain their own copy of the cert, so you must replace them: {{{ cp /etc/keystone/ssl/certs/ca.pem /var/lib/nova/keystone-signing/cacert.pem cp /etc/keystone/ssl/certs/signing_cert.pem /var/lib/nova/keystone-signing/signing_cert.pem restart nova-api cp /etc/keystone/ssl/certs/ca.pem /var/lib/cinder/cacert.pem cp /etc/keystone/ssl/certs/signing_cert.pem /var/lib/cinder/signing_cert.pem restart cinder-api cp /etc/keystone/ssl/certs/ca.pem /var/lib/quantum/keystone-signing/cacert.pem cp /etc/keystone/ssl/certs/signing_cert.pem /var/lib/quantum/keystone-signing/signing_cert.pem restart quantum-server cp /etc/keystone/ssl/certs/ca.pem /var/lib/glance/keystone-signing/cacert.pem cp /etc/keystone/ssl/certs/signing_cert.pem /var/lib/glance/keystone-signing/signing_cert.pem sudo chown glance.glance /var/lib/glance/keystone-signing/cacert.pem sudo chown glance.glance /var/lib/glance/keystone-signing/signing_cert.pem restart glance-api restart glance-registry }}} You may need to change the ownership of the certs (other than glance) to keystone.keystone Glance's certs must be glance.glance