Error creating certificates, organizational unit missing

[carvido1]

in defaults/main.yml is missing the organizational unit parameter. In ubuntu 18.04 without sslcert configuration fails when creating de cert/key.
Solution: modify ssl_certs_fields and create a variable with the OU value.

ssl_certs_ou: "IT"
ssl_certs_fields: "/C={{ ssl_certs_country }}/ST={{ ssl_certs_state }}/L={{ ssl_certs_locality }}/O={{ ssl_certs_organization }}/OU={{ ssl_certs_ou }}/CN={{ ssl_certs_common_name }}"