HORIZON_URL=$(cat /opt/config/horizon_url.txt)
OPENSTACK_USER=$(cat /opt/config/openstack_user.txt)
OPENSTACK_PASSWORD=$(cat /opt/config/openstack_password.txt)
-OPENSTACK_KEYNAME=$(cat /opt/config/key_name.txt)$(cat /opt/config/rand_str.txt)"_dcae"
+OPENSTACK_KEYNAME=$(cat /opt/config/key_name.txt)"_"$(cat /opt/config/rand_str.txt)"_dcae"
OPENSTACK_PUBKEY=$(cat /opt/config/pub_key.txt)
KEYSTONE_URL=$(cat /opt/config/keystone_url.txt)
OPENSTACK_TENANT_ID=$(cat /opt/config/tenant_id.txt)