Tag: Amazon EC2

Create an Amazon EC2 instance using Terraform with Session Manager access using VPC Endpoint

~ sourav kundu ~ 1 Comment

As a reader of this note, I believe you are familiar with Session Manager. Per AWS-Docs, Session Manager is a fully managed AWS Systems Manager capability that lets you manage your Amazon EC2 instances through an interactive one-click browser-based shell or through the AWS CLI. For Session Manager to function, the Amazon VPC requires access … Continue reading Create an Amazon EC2 instance using Terraform with Session Manager access using VPC Endpoint

Connect to an Amazon ElastiCache cluster from an Amazon EC2 instance using Python

~ sourav kundu ~ 2 Comments

This note continues my previous note on Amazon ElastiCache for Redis. In my earlier note, I demonstrated how to create an Amazon ElastiCache for the Redis cluster using Terraform and automate the process using GitHub Actions. In this note, I explain how to connect to the ElastiCache cluster using Python from an Amazon EC2 instance. … Continue reading Connect to an Amazon ElastiCache cluster from an Amazon EC2 instance using Python

Access AWS Secrets Manager secret from Amazon EC2 instance using Python

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Per AWS-Docs, AWS Secrets Manager is a service to manage, retrieve, and rotate database credentials, application credentials, OAuth tokens, API keys, and other secrets throughout their lifecycles. Many AWS services store and use secrets in Secrets Manager. In this note, I demonstrate how to access the AWS Secrets Manager secret value using Python from an … Continue reading Access AWS Secrets Manager secret from Amazon EC2 instance using Python

Trigger instance refresh of Amazon EC2 Auto Scaling group with a launch template update using Terraform

~ sourav kundu ~ 5 Comments

This note continues my discussion on the Amazon EC2 Auto Scaling group that I started in my previous post, so please read that before this one. In that post, I explain the fundamentals of creating an Amazon EC2 Auto Scaling Group using Terraform. An Amazon Auto Scaling group consists of Amazon EC2 instances with specific … Continue reading Trigger instance refresh of Amazon EC2 Auto Scaling group with a launch template update using Terraform

Create an Amazon EC2 Auto Scaling group with metric scaling policies using Terraform

~ sourav kundu ~ 2 Comments

This note continues to explore the auto-scaling concept I discussed in my note  -create an ASG and load balancer with Terraform, so please read that note before this one. After creating the Amazon EC2 Auto Scaling group, the application development team would require the scaling policies to manage the correct number of Amazon EC2 instances. … Continue reading Create an Amazon EC2 Auto Scaling group with metric scaling policies using Terraform

Create Amazon EC2 Auto Scaling group and load balancer using Terraform and GitHub Actions

~ sourav kundu ~ 7 Comments

When project teams host an application or service on an Amazon EC2 instance, they have specific questions about the underlying infrastructure. A few of them could be: (a) Can the project team be assured that if some or all existing EC2 instances were terminated or unresponsive, new Amazon EC2 instances (with the application hosted) would … Continue reading Create Amazon EC2 Auto Scaling group and load balancer using Terraform and GitHub Actions

Create an Amazon EC2 instance with Session Manager access using Terraform

~ sourav kundu ~ 9 Comments

Sometimes, connecting an EC2 instance after provisioning is necessary to verify whether the user-data script ran successfully, review if something is passing/failing, etc. As of August 2023, there are four ways of connecting to an Amazon EC2 instance running on Linux from the AWS console  -EC2 Instance Connect, Session Manager, SSH client, and EC2 serial … Continue reading Create an Amazon EC2 instance with Session Manager access using Terraform

Add an application load balancer to Amazon EC2 instances in a private subnet

~ sourav kundu ~ 6 Comments

In this note, I create a highly available environment using Amazon EC2 instances spread over multiple availability zones attached to an application load balancer. I also have a link to my GitHub repository with the code. In the past, I wrote a note on how to toggle traffic between three EC2 instances in three availability … Continue reading Add an application load balancer to Amazon EC2 instances in a private subnet

Add an application load balancer to Amazon EC2 using Terraform

~ sourav kundu ~ 9 Comments

A highly available application has a higher chance of attracting customers because they are assured of consistency in service. Load balancing is a cost-effective way to increase an application's availability. In this note, I describe the steps to add an application load balancer to three Amazon EC2 instances hosted in three public subnets in different … Continue reading Add an application load balancer to Amazon EC2 using Terraform

Create a web-server on Amazon EC2 instance using Terraform and user data

~ sourav kundu ~ 9 Comments

In this note, I detail all the steps required to create a bare-bone web server on Amazon EC2. I discuss creating the Amazon Virtual Private Cloud, subnets, internet gateway, security group, and Amazon EC2 instances to finally automate the process via Terraform and user data. Note: I did not include the concepts of load balancing, … Continue reading Create a web-server on Amazon EC2 instance using Terraform and user data