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Getting Started & Setting Up Labs : Choosing a right Infrastructure as Code tool
******************************************************************************** 
- Terraform
- CloudFormation
- Heat
- Ansible
- SaltStack
- Chef, Puppet and Others

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Course Materials
----------------
Github Link for Materials : https://github.com/Pierian-Data/Complete-Python-3-Bootcamp

Free Python Interpreter
-----------------------
>>  jupyter.org/try
>>  Google collab online notebooks
>>  repl.it
>>  Google search "Python Onine Interpreter"

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Kubernetes Architecture
~~~~~~~~~~~~~~~~~~~~~~~
Nodes
-----
. A node is a machine, physical or virtual on which Kubernetes is installed. 
. A node is a worker machine and that is where containers will be launched by Kubernetes.
  - A worker node is also called as minions
  
  
Cluster

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Common Network Ports and associated Applications
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PORT NUMBER           PROTOCOL                SERVER APPLICATION
   22                  SSH                     OpenSSH
   23                  TELNET                  telnetd
   25                  SMTP                    PostFix, Sendmail
   53                  DNS                     BIND, named, unbound
   67                  BOOTP                   dnsmasq, dhcpd
   80                  HTTP                    Apache, nginx
   443                 HTTPS                   Apache, nginx

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Docker is primarly a container runtime, means that Docker is a piece of software that is designed to impliment and 
support containers. (Rocket and containerd are some competitors.)

DOCKER INSTALLATION
=====================================================================================================================
Install Docker in CentOS
~~~~~~~~~~~~~~~~~~~~~~~~

Install all the packages needed to install docker
-------------------------------------------------

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Ansible Playbooks
~~~~~~~~~~~~~~~~~
As ad-hoc commands are to bash commands, playbooks are to bash scripts. Playbooks run using 'ansible-playbook' command
and not the ansible command. Playbooks are written in YAML. It contain different elements called plays. Plays contain 
list of host and at minimum one task. 

You can use default host inventory or you can create a new inventory file.

>>  sudo su - ansible
>>  pwd  ==> /home/ansible

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Ansible: Setup, Configure, and Ad Hoc Commands Deep Dive
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Ansible is an opensource tool that enables automate, configure and orchestrate your infrastructure.

How to install Ansible
----------------------
>>  yum list epel-release
>>  yum install epel-release(do it only if not installed)
>>  sudo yum install ansible
>>  sudo yum install git

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Ansible Introduction and Architecture
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Ansible is an automation engine that allows for agentless system configuration and deployment means it is simply a tool 
that can execute tasks on remote or local system wherever you need to. It does this in a way that doesn't require any
real additional software outside of the ansible based binaries that you install on one server and runs Ansible modules 
on remote system over SSH inorder to complete tasks.

Basic Components
----------------
Control Node    : Any machine with Ansible installed. You can run commands and playbooks, invoking /usr/bin/ansible or