High Availability Architecture with AWS CLI

Launching EC2 Instance and Attaching EBS Volume

Command for launching an ec2 instance : <aws ec2 run-instances --image-id ami-081bb417559035fe8 --subnet-id subnet-db1019b3 --instance-type t2.micro --key-name task_3 --security-group-ids sg-0bdcc0bd24bf50707 --count 1>

Command to attach an existing volume : <aws ec2 attach-volume  --volume-id vol-0f86e13bdceda5bb7  --instance-id i-03447a5502789ab48 --device   /dev/sdf>

Configuring the Webserver on EC2 instance

Command to install httpd webserver : <yum install httpd> Command for partition, format & mounting the partition on the default directory of httpd <fdisk /dev/xvdf> <mkfs.ext4 /dev/xvdf1> <mount /dev/xvdf1 /var/www/html> we can check above processes using <df -h> command or <lsblk> command

Creating S3 Bucket and Storing Image in it

Create a S3 bucket to store static data using command <aws s3api create-bucket --bucket tsk6 --region ap-south-1 --acl public-read --create-bucket-configuration LocationConstraint =ap-south-1>

Store the image in the created bucket using command <aws s3 cp C:\Users\91738\Desktop\aashish.png s3://tsk6/ --acl public-read>

Setting-up Content Delivery Network using CloudFront with S3 bucket as Domain origin

Create a cloudfront distribution using command <aws cloudfront create-distribution --origin-domain-name tsk6.s3.amazonaws.com>

Starting HTTPD service and creating a webpage in /var/www/html directory

Command to start the httpd services : <systemctl start httpd> Command to check the status of the httpd : <systemctl status httpd>

Add the image url as the cloud front url providing the image anme at last <img src = "http://d2gc1ajv95i0ol.cloudfront.net/aashish.png" width="100" height="140"/>

Add an inbound rule for accessing the webpage which is Tcp protocol of HTTP type

Now type the url of the created webpage on browser as <http://public_instance_ip/webpage_name> like <http://65.0.100.235/webpg.html>