ZouhairCharef

How to Install Sonarqube in Ubuntu Linux

Prerequsites

Virtual Machine running Ubuntu 22.04 or newer

Install Postgresql 15

sudo apt update
sudo apt upgrade

sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.list'

Install Rancher Manager With Lets Encrypt (Linux)

Infrastructure

Domain Name
Ability to make DNS Changes
Debian 11 Virtual Machine (Should work with Ubuntu)
Port 80 & 443 must be accessible for Let's Encrypt to verify and issue certificates

Pick a subdomain and create a DNS entry pointing to the IP Address that will be assigned to the Rancher Server

RKE2 Node Cleanup To reset a RKE2 node, run the following commands:

# rke2-(server|agent) related
rke2-killall.sh
rke2-uninstall.sh
# rancher-system-agent related
systemctl stop rancher-system-agent.service
systemctl disable rancher-system-agent.service
rm -f /etc/systemd/system/rancher-system-agent.service

Monitor Calico Felix using Prometheus Operator

Make sure you have these settings enabled in felix, in this case using enviornment variables:

FELIX_PROMETHEUSMETRICSENABLED = True
FELIX_PROMETHEUSMETRICSPORT = "9091"
FELIX_PROMETHEUSGOMETRICSENABLED = True
FELIX_PROMETHEUSPROCESSMETRICSENABLED = True

Kubernetes Installation & Setup Guide

https://kubernetes.io/docs/setup/independent/create-cluster-kubeadm/

Before Begin

Following document is about installing and setting up a cluster using kubernetes. Basic structure it supports is a cluster with one MASTER and multiple NODES(slave nodes).

COMMON : You should perform for both MASTER and NODE.
MASTER : You should perform for MASTER only.
NODE : You should perform for NODE only.

Install Vagrant

sudo su
apt-get update && apt-get install -y libvirt-dev ruby-all-dev apparmor-utils
curl -O -L https://dl.bintray.com/mitchellh/vagrant/vagrant_1.6.5_x86_64.deb
dpkg -i vagrant_1.6.5_x86_64.deb 
aa-complain /usr/lib/libvirt/virt-aa-helper # workaround
exit

	===============================================================================
	User Name-: Hardik
	Registration code :- TZXZT-USMCB-ZRKYP-MTVG3-JM8UL
	===============================================================================

	# Copyright 2017 The Kubernetes Authors.
	#
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,

	#!/bin/bash

	#Harbor on Ubuntu 18.04

	#Prompt for the user to ask if the install should use the IP Address or Fully Qualified Domain Name of the Harbor Server
	PS3='Would you like to install Harbor based on IP or FQDN? '
	select option in IP FQDN
	do
	case $option in
	IP)


	Questions are not from any actual exam!!!



	Q: Create a job that calculates pi to 2000 decimal points using the container with the image named perl
	and the following commands issued to the container: ["perl", "-Mbignum=bpi", "-wle", "print bpi(2000)"]
	Once the job has completed, check the logs to and export the result to pi-result.txt.

	Solution: