Creating High Availability Architecture with AWS CLI

The architecture includes- 

• Creating and Configuring the Web Server
• Creating the EBS storage and Document Root(/var/www/html) mounting on it
• Storing the Static object in the S3
• Setting up the Content Delivery Network using CloudFront and using the origin domain as an S3 bucket. 
• Finally, place the Cloud Front URL on the web app code for security and low latency.

The AMI used is Amazon Linux 2 AMI

For using the AWS CLI first we need to configure it, here is my article

Step 1: Creating and Configuring the Web Server

For installing the Apache Web Server

yum install httpd 

The Apache Web Server works on port number 80 which is by default block by the AWS firewall for this we need to add the inbound Security rule

By adding the inbound rule the firewall will allow all the incoming traffic by port 80 on which the Apache Web Server is running

Step 2: Creating an EBS volume

aws ec2 create-volume --availability-zone zone_name --size 1 --volume-type gp2

Attaching the EBS volume to the instance

Aws attach-volume --volume-id vol-ID  --instance-id i-ID --device /dev/xvdh

For Checking If the disk is attached or not we have a command

fdisk -l

Step 3: Formating and Mounting the disk Created

• Going to the partition by using

fdisk /dev/xvdh

• Creating the new partition

Step 4: Mounting the /var/www/html on the EBS volume

mount /dev/xvdh1 /var/www/html

Step 5: Creating the S3 bucket

http://task6anmol.s3.ap-south-1.amazonaws.com/grass.jpg

by the above link we can see the object uploaded in the bucket. Its syntax is like

<HTTP://Bucket_name.s3.region_name.amazonaws.com/object_name>

Step 6: Creating Cloud Front

aws cloudfront create-distribution --origin-domain-name S3_bucket_name

http://d1xuh9k9fa9yag.cloudfront.net/grass.jpg

http://task6anmol.s3.ap-south-1.amazonaws.com/grass.jpg

For checking the cloud front is working or not we can check it by opening the object by cloud front as <HTTP://domain_name.cloudfront.net/object_name>

Once the Cloud Front is ready now we can write the code