Let’s setup VPC via Terraform script in this article. With our 24/7 AWS Support Services, Bobcares provides solutions to your queries.

How to setup VPC via Terraform?

AWS VPC is a virtual private cloud computing service that “provisions a logically isolated area of Amazon Web Services Cloud” to give users access to a virtual private cloud. We can add subnets, link security groups, define route tables, and select an IP address range for the VPC. The features listed below typically assist us in setting up a VPC to offer the connectivity that the applications require:

• • Subnets
  • IP Addressing
  • Routing
  • Gateways
  • Transit Gateways
  • VPC Peering Connections
  • Traffic Mirroring
  • Flow Log
  • VPN connections

We can quickly set up the infrastructure and check the system’s status thanks to Terraform scripts. We already have a default VPC set up on Amazon AWS for launching instances. Launching an instance in a VPC, either a pre-configured VPC or a custom-built VPC is the recommended approach. Creating our VPC will be the first step before deploying instances on it. In a VPC, each accessible zone has its own private and public subnet.

We’ll write a Terraform script in this tutorial to set up the VPC in AWS.

The Terraform script to setup the VPC is as follows:

Now we’ve set up some additional features to provide the connectivity that applications require.

Adding Subnets

We can use the below code to add subnets:

Gateways

We can use the below code to create an internet gateway in the same VPC:

Routing

We can use the following code to define a route of traffic to the internet gateway:

Now link this route to the subnets:

NAT Gateway

We can add a NAT gateway for the instances to access the internet. First, create a static IP address or elastic IP using the below code:

Then create a NAT gateway:

Then create routes for the NAT:

Lastly, link this route to the private subnets:

[Are you looking for a solution to a different Kubernetes issue? We’re here to help you.]

Conclusion

AWS VPC provides the advantages of the scalable infrastructure of AWS. This article helps us to understand the way of setting up VPC via Terraform script.