NetSUS sounds like what you need:

https://github.com/jamf/NetSUS/blob/master/README.md#requirements

I don't know whether it works with CentOS though...I think it is for Ubuntu...that being said they offer an installer or a preconfigured Linux VM . You might take a look and see whether it fits the bill.

Here is a section of the documentation I wrote for our internal netboot servers. It is for configuring BSDPY on RHEL 7

Docker
Install Docker

sudo tee /etc/yum.repos.d/docker.repo <<-EOF

[dockerrepo]

name=Docker Repository

baseurl=https://yum.dockerproject.org/repo/main/centos/7

enabled=1

gpgcheck=1

gpgkey=https://yum.dockerproject.org/gpg

EOF

yum install docker-engine -y

chkconfig docker on

service docker restart

Create required directories

mkdir -p /data/netboot/nbi

HTTP
Install apache and set the document root to /data/netboot/

TFTP

yum install tftp-server xinetd

edit /etc/xinetd.d/tftp

# default: off

# description: The tftp server serves files using the trivial file transfer

#    protocol.  The tftp protocol is often used to boot diskless

#    workstations, download configuration files to network-aware printers,

#    and to start the installation process for some operating systems.

service tftp

{

    socket_type        = dgram

    protocol        = udp

    wait            = yes

    user            = root

    server            = /usr/sbin/in.tftpd

    server_args        = -s /data/netboot/ -v

    disable            = no

    per_source        = 11

    cps            = 100 2

    flags            = IPv4

}

enable xinetd

chkconfig xinetd on

service xinetd restart

edit /usr/local/sbin/bsdpyStart.sh

#!/bin/bash

IP=`hostname -I | cut -f 1 -d ' '`;

INTERFACE=`ip addr | grep en | grep BROAD | cut -d ' ' -f 2 | cut -d ':' -f 1`;

docker run -d 

    -v /data/netboot/nbi:/nbi:ro 

    -p 0.0.0.0:68:68/udp 

    -p 0.0.0.0:67:67/udp 

    -e BSDPY_IFACE=$INTERFACE 

    -e BSDPY_NBI_URL=http://$IP/nbi 

    -e BSDPY_IP=$IP 

    --name bsdpy 

    --restart=always

    bruienne/bsdpy:1.0 

    /start.sh

edit /usr/local/sbin/bsdpyStop.sh

#!/bin/bash

docker stop bsdpy;

sleep 5

docker rm -f bsdpy;

Set permissions on run scripts

chmod 0700 /usr/local/sbin/bsdpySt*

FIREWALL Config

firewall-cmd --zone=public --add-port=67/udp --permanent

firewall-cmd --zone=public --add-port=68/udp --permanent

firewall-cmd --zone=public --add-port=69/udp --permanent

firewall-cmd --reload

Start the service

/usr/local/sbin/bsdpyStart.sh

Just wanted to share the blog post that helped me set up our Docker containers for use with BSDPY on Linux:

https://grahamgilbert.com/blog/2015/04/22/getting-started-with-bsdpy-on-docker/