John Bryan Sazon bzon

Some hacks for you DevOps peeps

To test these go to Manage Jenkins --> Script Console.

General User Management and Security

Add anyuid privilege to a service account

oc adm policy add-scc-to-user anyuid -z serviceAccountName -n namespaceName

Enable a serviceAccount from destinationProject to pull images from sourceProject

oc policy add-role-to-user system:image-puller system:serviceaccount:destinationProject:serviceAccount --namespace=sourceProject

Networking

Expose an app Port using NodePort

In this example, we are exposing the oracle-xe deployment config containerPort 1521 to nodePort 30401.

Common Git hacks

Rebasing develop branch from the latest changes of master branch.

git clone http://projectA.git -b develop
git pull --rebase origin master
# Resolve merge conflicts
git add <the resolved files>
git rebase --continue
git commit -m "Merged from master branch" # or git commit --amend -m "Overwriting the current commit"

Create the file $HOME/.vimrc with this content.

set paste

filetype plugin indent on
" show existing tab with 4 spaces width
set tabstop=4
" when indenting with '>', use 4 spaces width
set shiftwidth=4

Issue 1 - ADCFGCLONE completes for Application Server but Autoconfig fails

Problem

Sample errors that can be found at the bottom of $INST_TOP/admin/log/ApplyAppsTier_xxxx.log

[AutoConfig Error Report]
The following report lists errors AutoConfig encountered during each
phase of its execution.  Errors are grouped by directory and phase.
The report format is:

What's Openshift?

Please watch: https://www.youtube.com/watch?v=yFPYGeKwmpk

Centos 7 Installation Guide

Pre-requisite

Based from https://docs.openshift.org/latest/install_config/install/advanced_install.html, we will install Openshift Origin on a single host that will act as a single master node (schedulable).

Sypnosis

What is GlusterFS? Read [here] (https://gluster.readthedocs.io/en/latest/Administrator%20Guide/GlusterFS%20Introduction/) :)

The main purpose of this documentation is to easily setup GlusterFS, a Network Attached Storage system across multiple servers without having to go thru complicated implementation.

This guide is meant for audiences that has minimal knowledge of Linux filesystem and GlusterFS.

References

https://access.redhat.com/documentation/en-US/Red_Hat_Storage/3/html/Administration_Guide/Formatting_and_Mounting_Bricks.html

	const net = require('net');
	const sockets = [];

	const server = net.Server((socket) => {
	sockets.push(socket);

	socket.on('data', (data) => {
	for (let i=0; i < sockets.length; i++) {
	sockets[i].write(data);
	}