Aurelio  Yost

Aurelio Yost


Install Kubernetes on Ubuntu 18.04 - 9 STEPS - Explained

This tutorial explains how to set up your Kubernetes cluster on Ubuntu 18.04 server. For this example I use AWS EC2 (Cloud Computing Service from Amazon Web Service), but the provided steps are applicable for any Ubuntu 18.04 environment.  This tutorial begins on how to prepare your EC2 instances, then run it all and connect to all these from your local machine - in my case, I used MacOS. If you are Windows user, for this step you can use PuTTy service.

For this example, I will create 1 Master node and 2 Worker nodes (in total 3 instances, or 3 nodes) for my Kubernetes Cluster. Also, I am sharing all related links to resources which helped and were useful in preparing this tutorial. There are many tutorials and instructions how to set up Kubernetes, but I tried to prepare the best one! So, in total - 33 commands and 9 steps for Kubernetes installations, everything is for you.

The plan of attack / Steps to Set up your Kubernetes cluster are:
0:00 - Intro
0:10 - Step 1. Set Up AWS EC2 Ubuntu 18.04 Instance

3:33 - Step 2. Connect to EC2 Instances from local terminals
4:34 - 2.1. Make your private key (.pem) executable
5:18 - 2.2. Connect to all nodes from instances

6:44 - Step 3. Install dependencies and configure Kubernetes
7:01 - 3.1. Update the package list
7:39 - 3.2. Install Docker
8:56 - 3.3. Check Docker version
9:32 - 3.4. Start and enable Docker

11:10 - Step 4. Install Kubernets on Ubuntu 18.04
11:20 - 4.1. Add a Signing Key (GPG)
12:24 - 4.2. Add the Kubernetes software repository

13:14 - Step 5. Prepare Kubernetes installation tools
13:35 - 5.1. Install kubeadm, kubelet, and kubectl
14:57 - 5.2. Check if kubeadm, kubelet, and kubectl are on hold
15:49 - 5.3. Check kubeadm version

16:30 - Step 6. Kubernetes Deployment
16:40 - 6.1. Disable the swap memory from nodes
17:03 - 6.2. Set host names for each node

18:20 - Step 7. Workaround to avoid mismatches between Docker drivers
19:04 - 7.1. Create a daemon.json file
22:20 - 7.2. Reset Docker and kubeadm services

23:44 - Step 8. Initialize Kubernetes Pod Network
24:16 - 8.1. Set up a Pod Network for Master node
26:44 - 8.2. Create a directory for the initialized Master node
27:05 - NETWORK ISSUES - you can skip it
28:16 - 8.3.Set up a virtual network for communication across nodes (flannel)
29:04 - 8.4.  Check the pods status
29:30 - 8.5. Join Worker nodes to a Master node

30:34 - Step 9. Check final stages
30:55 - 9.1. Confirm that Master node communicates with all Worker nodes
31:47 - BONUS: Github repository - Readme file with all steps in one place

- - - - - - - - - -
Additional resources:
- You can find all steps provided in this video clearly explained in Readme right here: Github repo with all steps:

#kubernetes  #docker  #devops 

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Install Kubernetes on Ubuntu 18.04 - 9 STEPS - Explained
Christa  Stehr

Christa Stehr


50+ Useful Kubernetes Tools for 2020 - Part 2


Last year, we provided a list of Kubernetes tools that proved so popular we have decided to curate another list of some useful additions for working with the platform—among which are many tools that we personally use here at Caylent. Check out the original tools list here in case you missed it.

According to a recent survey done by Stackrox, the dominance Kubernetes enjoys in the market continues to be reinforced, with 86% of respondents using it for container orchestration.

(State of Kubernetes and Container Security, 2020)

And as you can see below, more and more companies are jumping into containerization for their apps. If you’re among them, here are some tools to aid you going forward as Kubernetes continues its rapid growth.

(State of Kubernetes and Container Security, 2020)

#blog #tools #amazon elastic kubernetes service #application security #aws kms #botkube #caylent #cli #container monitoring #container orchestration tools #container security #containers #continuous delivery #continuous deployment #continuous integration #contour #developers #development #developments #draft #eksctl #firewall #gcp #github #harbor #helm #helm charts #helm-2to3 #helm-aws-secret-plugin #helm-docs #helm-operator-get-started #helm-secrets #iam #json #k-rail #k3s #k3sup #k8s #keycloak #kiali #kiam #klum #knative #krew #ksniff #kube #kube-prod-runtime #kube-ps1 #kube-scan #kube-state-metrics #kube2iam #kubeapps #kubebuilder #kubeconfig #kubectl #kubectl-aws-secrets #kubefwd #kubernetes #kubernetes command line tool #kubernetes configuration #kubernetes deployment #kubernetes in development #kubernetes in production #kubernetes ingress #kubernetes interfaces #kubernetes monitoring #kubernetes networking #kubernetes observability #kubernetes plugins #kubernetes secrets #kubernetes security #kubernetes security best practices #kubernetes security vendors #kubernetes service discovery #kubernetic #kubesec #kubeterminal #kubeval #kudo #kuma #microsoft azure key vault #mozilla sops #octant #octarine #open source #palo alto kubernetes security #permission-manager #pgp #rafay #rakess #rancher #rook #secrets operations #serverless function #service mesh #shell-operator #snyk #snyk container #sonobuoy #strongdm #tcpdump #tenkai #testing #tigera #tilt #vert.x #wireshark #yaml

Chet  Lubowitz

Chet Lubowitz


How to Install Microsoft Teams on Ubuntu 20.04

Microsoft Teams is a communication platform used for Chat, Calling, Meetings, and Collaboration. Generally, it is used by companies and individuals working on projects. However, Microsoft Teams is available for macOS, Windows, and Linux operating systems available now.

In this tutorial, we will show you how to install Microsoft Teams on Ubuntu 20.04 machine. By default, Microsoft Teams package is not available in the Ubuntu default repository. However we will show you 2 methods to install Teams by downloading the Debian package from their official website, or by adding the Microsoft repository.

Install Microsoft Teams on Ubuntu 20.04

1./ Install Microsoft Teams using Debian installer file

01- First, navigate to teams app downloads page and grab the Debian binary installer. You can simply obtain the URL and pull the binary using wget;

$ wget${VERSION}_amd64.deb

#linux #ubuntu #install microsoft teams on ubuntu #install teams ubuntu #microsoft teams #teams #teams download ubuntu #teams install ubuntu #ubuntu install microsoft teams #uninstall teams ubuntu

Servo Node

Servo Node


Install VirtualBox in Ubuntu 21.04/20.04/18.04 › Servo Node

VirtualBox is a widely known and open-source tool offered by Oracle. It’s a cross platform virtualization application that can be installed on any system that allows users to run a number of guest operating systems on single machine over a virtual system.

Means, with the usage of VirtualBox on your system, you can easily install many operating systems and can run them simultaneously which can be helpful to develop, demonstrate, deploy and test applications on a single machine.

How to install VirtualBox On Ubuntu 18.04, 20.04 and 21.04?

Since the virtualization system offered by Oracle is available for cross platforms, even Ubuntu users can install the app and take its benefits. In order to install VirtualBox in Ubuntu variants, there’s a number of approaches that can be helpful.

Installing using default repository

sudo apt install virtualbox

Install using official DEB package

Visit the Virtualbox download page and download DEB package in your machine, and run the following command to install the package using ATP command.

sudo apt install ./virtualbox-6.1_6.1.22-144080_Ubuntu_bionic_amd64.deb

for more approaches and information, Read Here

#install virtual box on ubuntu #install virtual box on ubuntu 18.04 #install virtual box on ubuntu 20.04 #install virtual box on ubuntu21.04

Chet  Lubowitz

Chet Lubowitz


How to Install TeamViewer on Ubuntu 20.04

TeamViewer is a cross-platform, proprietary application that allows a user to remotely connect to a workstation, transfer files, and have online meetings. In this tutorial, we will walk you through how to install TeamViewer on Ubuntu 20.04 Desktop through the command line.


Before continuing with this tutorial, make sure you are logged in as a user with sudo privileges.

Installing TeamViewer on Ubuntu

01- To install TeamViewer, first, download the TeamViewer .deb package. So, open the Terminal and run the following wget command.

$ wget

02- Once you have downloaded the TeamViewer‘s Debian package, execute the following command to install Teamviewer:

$ sudo apt install ./teamviewer_amd64.deb

The system will prompt you with a [Y/n] option. Type ‘Y‘ and hit the enter key in order for to continue the installation.

03- Once the installation is done, you can launch TeamViewer either by typing the command teamviewer in your terminal or by clicking on the TeamViewer icon (Activities -> TeamViewer).

04- A pop-up License Agreement will be displayed. To proceed, click on the Accept License Agreement button.

#linux #ubuntu #install teamviewer #install teamviewer ubuntu #teamviewer #teamviewer ubuntu #teamviewer ubuntu install #ubuntu install teamviewer

Arvel  Parker

Arvel Parker


How to Install PgAdmin 4 on Ubuntu 20.04

pgAdmin is the leading graphical Open Source management, development and administration tool for PostgreSQL. pgAdmin4 is a rewrite of the popular pgAdmin3 management tool for the PostgreSQL database.

In this tutorial, we are going to show you how to install pgAdmin4 in Server Mode as a web application using apache2 and Wsgi module on Ubuntu 20.04 LTS.

#databases #linux #ubuntu #install pgadmin4 #install pgadmin4 ubuntu #install pgadmin4 ubuntu 20 #pgadmin4 #ubuntu pgadmin4 #ubuntu pgadmin4 install