Robottelo: make_capsule() doesn't work on RHEL7

[rplevka]

looks like the the tunnel is being created, but there's an error on accessing the capsule on new port - Permission denied. Looks like it is caused by SELinux as setenforce 0 helps.

[sthirugn]

is this happening due to the pending PR https://github.com/SatelliteQE/automation-tools/pull/330. If so, we need to get this merged asap <- @elyezer

[elyezer]

Yes the failures is because firewall. Let's manage to merge that PR. I have some ideas on how to work with firewalld, will work on that asap.

[lpramuk]

This issue is caused by selinux policy preventing passenger to connect to ports not labeled as websm_port_t (9090/tcp)

foreman.te:
allow passenger_t websm_port_t:tcp_socket name_connect;

We are going to fix it by labeling predefined range of ports (9091-9190) as websm_port_t ports.
Plus we dont need ssh for tunneling instead we will switch to use socat tool

• /me will prepare automation-tools fab task setup_alternate_capsule_ports() superseding enable_gateway_ports_connections()
• @rplevka will make changes to robottelo tests implementing get_alternate_capsule_port()