Provision Ubuntu 22.0.4 EC2 Instance | How to create EC2 instance in AWS console | Launch Ubuntu 22.0.4 instance in AWS

How to create new EC2 instance in AWS console using new UI experience?

What is EC2 instance? 

It is virtual server provided by AWS. We will be using this EC2 to setup both Jenkins and Tomcat. Please follow the below steps to create an EC2 instance.

Watch in YouTube for a demo:

Steps:
1: Login to AWS console by clicking this link -->  https://aws.amazon.com/console/

click on All services, Click on Compute -->  Click on EC2

2. Click on Launch instance

3. Enter Name as EC2 and enter 2 as number of instances (one for Jenkins and another for Tomcat)

4. Select Ubuntu

 and choose Ubuntu server 22.0.4 as AMI

5. Enter t2.small as instance type

6. Click on Create new Key Pair

7. Choose the existing key pair if you have one, otherwise create new one, give some name as myJenkinsKey. Make sure you download the key in your local machine. Please do NOT give space or any character while naming the key.

8. Under Network settings, Click Edit

Add port range as 8080 and select AnyWhere as Source Type, that should enter 0.0.0.0/0 as Source

9. Configure Storage

Enter 15 GB as root volume 

And then make sure in Summary, values appear as below:

10. Click on Launch Instance.

Click on View instances

Now you should be able to view instances in AWS console. Now you can re-name as Jenkins-EC2 and Tomcat-EC2

Connect to EC2 instance from local machine:
Please click the below link to understand the steps for connecting to EC2 instance from your local machine - windows or Apple laptop.

http://www.cidevops.com/2018/02/how-to-connect-to-ec2-instance-from.html

How to create an Elastic IP Address in AWS and assign to your EC2 instance | Associate Elastic IP address to EC2 instance

Elastic IP address is static IP address provided by AWS, you should avoid using public ip address as it changes every stop/start of EC2 instance.
How to create Elastic IP address:

Go to AWS console, Click on EC2, Elastic IPs.

Click on Allocate Elastic IP address

Now it should create Elastic IP address.

Click on Actions, Associate Elastic IP address and choose your instance from Instances textbox and pick up the Private ip address automatically.

That's it! Elastic IP(static) address have been assigned to your EC2 instance.

How to connect to an EC2 instance from local machine after creating EC2 in AWS?

Find the steps to connect to EC2 instance (running in AWS) from your local machine .

Pre-requisites:

1. Keys(for e.g., yourkey.pem) already downloaded in your local machine, preferably in Downloads folder.
2. EC2 is up and running
3. For windows laptop, you need to install Git by downloading from this URL - https://git-scm.com/downloads
4. For apple desktop or laptops, download https://www.iterm2.com/downloads.html

Steps to connect to EC2 instance:

1. Go to AWS console.
2. Click on EC2, click on running instances link

3. Select the checkbox of EC2 you would like to connect to.
4. Click on Action. Copy the url from SSH which looks like below:
For e.g.
ssh -i "mykey.pem" ubuntu@dns_name.compute.amazonaws.com
 

5. Go to your local machine, Open Git bash, navigate to downloads directory like below:
For windows laptop --> cd downloads

steps For iMac only --> cd downloads

chmod 400 yourkey.pem

6. Paste the url from example highlighted above in step # 4.
ssh -i "mykey.pem" ubuntu@dns_name.compute.amazonaws.com
7. say yes when it is asking to connect.
8. now you should be in AWS cloud, screen should tell you something like this:

Last login: Sun Feb 18 19:01:21 2018 from 64.183.186.78
ubuntu@ip-172-31-26-96:~$

How to resize memory in EC2 instance in AWS?

Please find steps below to increase or decrease memory for the EC2 instances. For example, if your t2.micro instance is too small for its workload, you can change it to an m3.medium instance.

1. Go to AWS console, choose the instance, instance state, click on stop the instance.
2. once stopped, go to Instance settings, change Instance type to desired type
3. Start the instance again.

That's it. You don't have to create a new instance. This is how you do it!