EC2 + S3 + IAM

Create an EC2 Instance
Go to Ec2 in AWS Console
Click Instance
Launch Instance

Provide Instance name

Choose Amazon Linux

Select t2.micro as Instance type

Create a new key pair and download the pem file
Scroll to the bottom of the page and click launch instance

Now a page will show the available running instances
Select the instance
Go to security

Scroll down and there will be Inbound rules

Click on edit inbound rules and select Custom and that will show a dropdown and Select MyIP

Click on Save Changes

Now install Putty in your Laptop and open it

Follow these steps

Connection -> ssh -> Auth -> Credentiels

click on browse and paste the ppk file .

(if it is formated as pem convert it into ppk using puttygen.)

Select accept and the page will show "Login as" type "ec2-user"

Your Terminal gets opened in that just create a file and add some contents in it.

Command to create a file

cat < "file_name.txt"

To view the content in the file

cat "file_name.txt"

Now Go to AWS Console , IAM -> Roles -> Create Role

This role will have S3 full access

You can view your Roles as in the image below

Go to EC2 instance and select the instance

Actions -> security -> Modify IAM Role

Now select the created IAM role in the dropdown and update IAM role

Go to the terminal, we need to put the created file in the AWS S3 so enter the command

aws s3 cp "file_name.txt s3://"bucket_name"

If there is no bucket in the S3 then create it by using the command.

aws s3 mb s3://"bucket_name"

After creating it upload the created file in the bucket by using the command.

aws s3 cp "file_name.txt s3://"bucket_name"

After uploading the files go check your AWS console to verify

Completing every steps terminate all the services (EC2, S3, IAM role)