How to start up openldap container and test it.

Start up the openldap containe

docker run --name ldap --hostname ldap.fabric-ca 
  -e LDAP_ORGANISATION="Fabric CA"
  -e LDAP_DOMAIN="fabric-ca"
  -e LDAP_ADMIN_PASSWORD="ps" -d osixia/openldap:1.1.9

The above procedure will enable tls and create server certificate and private, they can be found inside the container at this location:

/container/service/slapd/assets/certs

In the above directory, you can see ldap.crt and ldap.key file. Regardless what hostname or cn you might choose, the container seems will always use the name ldap.crt and ldap.key as the certificate name and key. There will be also ca.crt, but that certificate actually links to following directory which comes with the container.

/container/service/:ssl-tools/assets/default-ca 

Test the container

docker exec ldap ldapsearch -x -H ldap://localhost
  -b dc=fabric-ca -D "cn=admin,dc=fabric-ca" -w ps