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RHEL9 Foreman Guide

  • In this Guide i will show you how to install Forman with puppet, katello and discovery plugin.
  • You will also learn how to install and setup DHCP- and TFTP-Server.
  • I will also show you how to setup Foreman and how to use the Foreman Boot Image via PXE.
  • You will be ready to discover and provision your physical servers and workstations after following this Guide.

1. Knowledge Base

  • here we explain:
    • how tftp and dhcp works
    • how the pxe boot process works
    • how the foreman smartproxy works
    • Lifecycle Management
      • what is it?
      • puppet & katello roles

2. Install Foreman (with katello, discovery-plugin, and local dhcp/tftp)

  • just the installation process

3. Discovery and Provisioning

  • we discover our host using the Boot Image
  • we set up Hostgroups, subnets, etc
  • we finally provision our discovered host

4. install and setup libvirt in Foreman

  • we install libvirt
  • we setup libvirt as compute resource
  • boot intoo container/vm

5. Proxmox

  • we install proxmox inside a vm using kvm&libvirt
  • we setup proxmox as a compute resource

6. Install Foreman with external DHCP & DNS

  • we install foreman inside a nested VM
  • we set up our DHCP & DNS for Dynamic Updates using RNDC
  • we configure our DHCP to share its leases using omapi(HMAC-MD5) key and NFS
  • we configure Foreman to manage our external DNS by importing the RNDC key
  • we configure Foreman to manage our external DHCP by using remote-isc-key flag and our omapi key

7. diskless pxe-boot using zfs (under construction)

  • we create a zfs tank inside proxmox
  • we create a wm inside proxmox and move the storage to our zfs tank (optional)
  • we create a automatic backup-plan for the wm (optional)
  • we create a pxe template inside foreman to pxe-boot diskless using the zfs tank storage

Roadmap

  • libvirt ✓
  • proxmox ✓
  • diskless boot using zfs (incl. repo storage) and custom pxe/grub preset ✓
  • lifecycle management with puppet and katello
  • cicd with ansible, terraform and packer
  • salt, k8s and kubevirt

the original version of the guide can be found here: original

  • I decided to group the tutorials, rather than creating a huuuuge file.