Closes rc/hpc-factory#181

Defining a network can be optional when a port is already defined when
deploying a VM.

This commit adds flexibility where you can either use --port or
--network options to define a network during the deployment.

Alternatively, you can define both but the port cannot be from the same
network you used in the --network option. Otherwise, you will have two
ips from the same network which will cause network reachability issues.

Enable rsyslog configuration by default

See merge request rc/hpc-factory!183

fix: restart firewalld only when it was running

See merge request !188

fix: restart firewalld after change

See merge request !187

fix node exporter with firewalld enabled

See merge request !186

feat: Add a way to define multiple security groups

See merge request !176

Add node exporter

See merge request rc/hpc-factory!184

Changed the 'enable_rsyslog_config' variable from false to true
This should be the default behavior for all nodes unless explicitly turned off by the developer.

feat: disable fail2ban by default

See merge request rc/hpc-factory!180

Install and configure fail2ban

See merge request rc/hpc-factory!178

Adds fail2ban filter and jail configs

Add symbolic links for Slurm config files

See merge request rc/hpc-factory!177

Feat build extra vars

See merge request rc/hpc-factory!168

Created symlinks for `slurm.conf`, `gres.conf`, `slurmdbd.conf`, and `cgroup.conf` in `/etc/slurm`.
To ensure consistency with the current production environment where these symlinks already exist.

Closes rc/hpc-factory#203

feat: update account app port

See merge request rc/hpc-factory!174

Restart httpd service after update

See merge request rc/hpc-factory!172

Update Apache configuration for OOD rewrite rules during deploy phase

See merge request rc/hpc-factory!170

previously it reflected a placeholder but it actually is the value in file from build that we're looking for and replacing in deploy phase

We lookup the value of the placeholder (RewriteCond %{HTTP:REMOTE_USER}  \’^(.+)$\’) in this case in the apache conf during build and replace it with the rewrite conditions during deploy phase.

fix: Skip creating home dir for slurm user

See merge request rc/hpc-factory!166

The home dir for slurm user is available as a mount from master so there
is no need to create a local home dir for it.