MongoDB template does not have Secret bind step. Describe the secret creation manually.

[rafaeltuelho]

For some reason, the MongoDB Ephemeral template on OCP 3.11 Catalog does not show the Secret Binding step anymore.

So, would be better to describe how to create the mongodb secret used by nationalparks service manually. Like this:

oc create secret generic mongodb-conn-secret \
--from-literal="admin_password=mongodb" \
--from-literal="database_name=mongodb" \
--from-literal="password=mongodb" \
--from-literal="username=mongodb" \
--from-literal="uri=mongodb://mongodb-nationalparks:27017"