Checkov a Must Tool for Infra CI

As organizations move more of their operations to the cloud, the need for secure and compliant infrastructure becomes increasingly important. With the rapid pace of cloud adoption, it’s crucial to have a tool that can help you ensure that your cloud infrastructure is configured securely and in compliance with best practices. So in today’s blog, we will be talking about a solution for all these problems which is Checkov.

 What is Checkov?

Checkov a must tool for infra CI

Checkov is a tool that helps developers and operations teams ensure that their infrastructure is secure and compliant with best practices. It does this by automatically scanning infrastructure as code (IaC) and runtime environments for issues that could potentially lead to security vulnerabilities or compliance failures. Checkov works by scanning code written in various IaC languages (such as Terraform, CloudFormation, and ARM templates) and looking for patterns that could indicate security or compliance risks. It can also be integrated into a continuous integration/continuous deployment (CI/CD) pipeline, allowing it to scan code automatically as it is being developed and deployed.

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VPC per envrionvment versus Single VPC for all environments

This blog talks about the two possible ways of hosting your infrastructure in Cloud, though it will be more close to hosting on AWS as it is a real life example but this problem can be applied to any cloud infrastructure set-up. I’m just sharing my thoughts and pros & cons of both approaches but I would love to hear from the people reading this blog about their take as well what do they think.

Before jumping right away into the real talk I would like to give a bit of background on how I come up with this blog, I was working with a client in managing his cloud infrastructure where we had 4 environments dev, QA, Pre Production and Production and each environment had close to 20 instances, apart from applications instances there were some admin instances as well such as Icinga for monitoring, logstash for consolidating logs, Graphite Server to view the logs, VPN server to manage access of people.

At this point we got into a discussion that whether the current infrastructure set-up is the right one where we are having a separate VPC per environment or the ideal setup would have been a single VPC and the environments could have been separated by subnet’s i.e a pair of subnet(public private) for each environment

Both approaches had some pros & cons associated with them

Single VPC set-up


  1. You only have a single VPC to manage
  2. You can consolidate your admin app’s such as Icinga, VPN server.


  1. As you are separating your environments through subnets you need granular access control at your subnet level i.e instances in staging environment should not be allowed to talk to dev environment instances. Similarly you have to control access of people at granular level as well
  2. Scope of human error is high as all the instances will be on same VPC.

VPC per environment setup


  1. You have a clear separation between your environments due to separate VPC’s.
  2. You will have finer access control on your environment as the access rules for VPC will effectively be access rules for your environments.
  3. As an admin it gives you a clear picture of your environments and you have an option to clone you complete environment very easily.


  1. As mentioned in pros of Single VPC setup you are at some financial loss as you would be duplicating admin application’s across environments

In my opinion the decision of choosing a specific set-up largely depends on the scale of your environment if you have a small or even medium sized environment then you can have your infrastructure set-up as “All environments in single VPC”, in case of large set-up I strongly believe that VPC per environment set-up is the way to go.

Let me know your thoughts and also the points in favour or against of both of these approaches.