Free Kubernetes Course | Getting Started With Kubernetes | How Kubernetes works

Free Online Kubernetes Course

There are many courses on internet for Kubernetes. You can choose a paid one or a free one. But you should make sure that these are worth to spend your time. Here is a free course which might be useful for you to get your hands dirty with Kubernetes.

This course is provided by Appychip YouTube channel for free. This is being taught by the DevOps professionals.

Appychip is a group of DevOps professional who are working full time and share their knowledge on the Appychip Blog and Appychip YouTube Channel.

Kubernetes is one the popular tool these days for managing your stack with containers. There are many feature because of which K8s is becoming a popular choice and organisations have also started adopting it for the production workloads.

Once you know the in and outs of kubernetes and know how to play around them you can start using it for dev environment, then for staging and finally for production workloads.

We, at Appychip have created some easy to follow and easy to understand video tutorial for kubernetes. These includes the following aspect:

Introduction To Kubernetes — This includes what are the components of Kubernetes and how do they work together

Setup Kubernetes locally for development environment — This tutorial explains how to setup kubernetes locally using minikube

Setup Kubernetes on AWS using KOPS — Tutorial on how to setup kubernetes cluster on AWS using KOPS

Setup Kubernetes on Google cloud — Setup Kubernetes clsuter on Google Cloud

How to Create cron jobs in Kubernetes — You can setup cron jobs on kubernetes cluster too. This tutorial is all about on how to setup cron jobs on k8s

How to autoscale Pod in Kubernetes Using HPA — You can setup cron jobs on kubernetes cluster too. This tutorial is all about on how to setup cron jobs on k8s

Keep Learning & Keep Sharing!

Add SSH key to multiple bitbucket account.

First, make sure you have a default account setup through a tutorial like this one on bitbucket.

For the second account:

• Create a new ssh key using the below command :

ssh-keygen -f ~/.ssh/<second_account_name>

• Copy the second account public key and then add that key to the bitbucket account. To open the second account public key use the below command :

cat ~/.ssh/second_account_name.pub

• Now create a new config file under .ssh folder :

nano ~/.ssh/config  

• Add the following to your ~/.ssh/config file. The first sets the default key for bitbucket.org. The second sets your second key to an alias bitbucket-second-account for bitbucket.org :

Host bitbucket.org
  Hostname bitbucket.org
  IdentityFile ~/.ssh/id_rsa

Host bitbucket-second-account
  Hostname bitbucket.org
  PreferredAuthentications publickey
  IdentityFile ~/.ssh/second_account_name

• You can now clone projects with your default account the same way as you was doing before :

git clone git@bitbucket.org:bitbucket-username/project.git

• To clone a project with the second identity, replace bitbucket.org with the Host that you specified in the ~/.ssh/config file :

git clone git@bitbucket-second-account:bitbucket-username/project.git

• Now it's done but by any chance if you are getting any error like this :

Agent admitted failure to sign using the key

• Just use the below command to fix the above problem :

ssh-add ~/.ssh/second_account_name