Yuval Lifshitz yuvalif

matlab/octave and C++

use parentheses around “if” conditions

good:

if (x = y && (x + y > 3))

not good:

Create bridge on node (with IP):

cluster/cli.sh ssh node01

sudo echo "net.bridge.bridge-nf-call-iptables = 0" >> /etc/sysctl.conf
sudo sysctl -p

sudo ip link add red type bridge
sudo ip link set dev red up
# either give a local address to bridge or set real interface as master

Create bridge on node:

# this step is needed so that the bridge would forward traffic
sudo echo "net.ipv4.ip_forward = 1" >> /etc/sysctl.conf
sudo sysctl -p

# create the bridge
sudo ip link add red type bridge
sudo ip link set dev red up

Check the DNS server name:

cat /etc/resolv.conf

Add the following line to the docker conf file:

echo "OPTIONS='--dns=10.0.0.10 --dns=10.0.0.11 --dns-search=example.com'" >> /etc/sysconfig/docker

Install remote viewer:

yum install virt-viewer

Configure sshd to allow for X11 forwarding:

vi /etc/ssh/sshd_config

And make sure that:

Follow instructions from: https://docs.openshift.com/container-platform/3.10/getting_started/install_openshift.html

subscription-manager register
subscription-manager refresh
subscription-manager list --available

Find the pool ID for the one that had OpenShift, and enable/disable repos:

subscription-manager attach --pool=<pool ID>
subscription-manager repos --disable=rhel-7-server-htb-rpms \

	# removed stopped container
	docker container prune

	# remove all images with no running containers
	docker image prune --all

	apiVersion: kubevirt.io/v1alpha2
	kind: VirtualMachineInstance
	metadata:
	creationTimestamp: null
	labels:
	special: vmi-bridge
	name: vmi-bridge
	spec:
	domain:
	devices:

	# Monitoring
	apiVersion: v1
	kind: Service
	metadata:
	name: kubevirt-prometheus-metrics
	namespace: kube-system
	labels:
	prometheus.kubevirt.io: ""
	kubevirt.io: ""
	spec:

	#!/bin/bash

	wget https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
	yum install -y epel-release-latest-7.noarch.rpm