William Caban Babilonia williamcaban

Environment

RHEL 8.4 4.18.0-305.19.1.el8_4.x86_64

Verify setup

lspci -nnv |grep -i nvidia

e.g.

[![OpenShift Version][openshift311-redimage]][openshift311-url] [![OpenShift Version][openshift311-heximage1]][openshift311-url] [![OpenShift Version][openshift311-heximage2]][openshift311-url] [![OpenShift Version][openshift311-heximage3]][openshift311-url] [![OpenShift Version][openshift311-heximage4]][openshift311-url]

[![OpenShift Version][openshift39-heximage]][openshift39-url] [![OpenShift Version][openshift310-heximage]][openshift310-url]

[![OpenShift Version][openshift311-logo]][openshift311-url]

Multus + DHCP IPAM example

Prerequisites: Multus + NetworkAttachmentDefinition CRD installed.

In order to have DHCP working as an IPAM plugin -- you'll need to have the DHCP CNI binary running.

In this example, we'll run this (as a daemonset) from the dougbtv/dhcp image, which is based on Tomo's dockerfile.

About my setup: In this setup, I use a macvlan plugin as the secondary interface for Multus. In my setup, I used an upstream Kubernetes running on KVM guests. The master device for macvlan is eth0 and that device is connected to a bridge in the 192.168.122.0/24 network space, and has an already running DHCP server available.

GPU demos with OpenShift using Caffe2

Environment

The RHPDS catalog item you provisioned is a single-node OpenShift environment that is backed by an Amazon P-type EC2 instance which has 1 NVIDIA GPU. It is a 100% vanilla/standard OpenShift Container Platform 3.10 installation. Post-install, there were a few additional things done consuming Ansible content from the https://github.com/redhat-performance/openshift-psap

Install Letsencrypt Nginx Centos 7

install certbot

  sudo yum install epel-release
  sudo yum update
  sudo yum install certbot

install nginx

  sudo yum install nginx

sudo systemctl start nginx

Link to these links: https://git.io/vKSVZ

Module 1:

Run jenkins from war file: jenkins -jar jenkins.war
Run jenkins from docker:

docker run -d \
           --restart unless-stopped \
           --name jenkins \

My Openshift Cheatsheet

List all non openshift/kube namespaces

requires jq CLI

oc get namespaces -o json | jq '[.items[] | select((.metadata.name | startswith("openshift") | not) and (.metadata.name | startswith("kube-") | not) and .metadata.name != "default" and (true)) | .metadata.name ]'

Project Quotes, Limits and Templates

OpenShift Named Certificates

This is a short guide explaining how to deploy and manage custom SNI or "named" certificates via openshift-ansible. These custom certificates will be served for public facing console and API.

1. Setting up
2. Install using master.public-example.com certificate

	#!/usr/bin/python3
	# Written May 2019 by Ryan Sawhill Aroha <[email protected]>
	# For dealing with OCPv4's MachineConfigs (which use Ignition)
	# Ref: https://github.com/openshift/machine-config-operator
	# Requires python v3.6+

	import urllib.parse
	import os.path
	from sys import argv, stdin, stderr, exit as sysexit

	<!DOCTYPE html>
	<html lang="en">
	<head>
	<title>WebSocket Client</title>
	<style>
	#output {
	border: solid 1px #000;
	}
	</style>
	</head>