The nginx used in this branch is the last stable one and not a version compiled by us. To run it inside a container without the root privileges, we have to adapt some configuration in the nginx.conf file. See https://hub.docker.com/_/nginx at section "Running nginx as a non-root user"

Deleted a part related to an unspoorted feture

The nginx.repo file is needed to install the njs module

the nginx.repo file is copied in the container only if it is necessary

Certificates removed:
* 5.pem
* 6.pem
* 9.pem

Added voms-clients-java