Get your Openshift OKD cluster up and running

People ask me how to do a simple OKD (Openshift) cluster setup, so here is my quick and dirty inventory file for 1 master and 2 nodes. Copy, modify where needed and have fun! [OSEv3:children] nodes masters nfs etcd [OSEv3:vars] openshift_master_cluster_public_hostname=okdmaster.mcboek.local openshift_master_default_subdomain=cloudapps.mcboek.local ansible_ssh_user=root openshift_master_cluster_hostname=None openshift_override_hostname_check=true deployment_type=origin openshift_disable_check=disk_availability,memory_availability containerized=true openshift_use_etcd_system_container=True # firewalld as firewall service os_firewall_use_firewalld=True…

A side note on VIM

Recently i changed my .vimrc. ” **************************************************** ” Common set laststatus=2 set statusline=%f set shiftwidth=4 set tabstop=4 set expandtab set number set selection=exclusive set autoindent set autoread set showcmd set nocompatible set relativenumber set nrformats-=octal set scrolloff=30 set cursorcolumn color blue autocmd FileType yaml,yml setlocal ai ts=2 sw=2 et ” Shortcuts remap nmap <F2> :tabnew<CR>…

Building the foundation – part 1 – Katello

One of the foundation building blocks is a system to manage the servers and repositories as well as keeping stock of the puppet infrastructure. For this we use Katello. Katello gives us content management, provisioning and configuration management. With the help of so-called Capsules we can extend its capabilities with functions like DHCP, CA, TFTP…

Learn-smarter-Online Reference Architecture overview

The Learn-smarter-Online Reference Architecture or LORA for short is a study on a IT architecture for a small internet based company that wants to have a place to run their Linux based web applications. To start off it will be build entirely from base components as found on the CentOS 7.1 Everything DVD, complemented by…