Advanced Terraform Interview Questions
- Working with multiple AWS accounts.
- Executing Terraform commands on multiple modules.
- Keeping our CLI flags DRY.
- Keeping our remote state configuration DRY.
- Keeping our Terraform code DRY.
Indeed, How do you explain Terraform in interview?
What is Terraform? Terraform is one of the most popular IAC tools used by every cloud engineer. It allows us to define both cloud and on-premise resources in human-readable configuration files and thereby provision these resources programmatically.
Then, What is Terraform good for? HashiCorp Terraform is an infrastructure as code tool that lets you define infrastructure resources in human-readable configuration files that you can version, reuse, and share. You can then use a consistent workflow to safely and efficiently provision and manage your infrastructure throughout its lifecycle.
What are the Terraform components? Terraform has two important components: Terraform Core and Terraform Plugins. Terraform Core oversees the reading and interpolation of resource plan executions, resource graphs, state management features and configuration files. Core is composed of compiled binaries written in the Go programming language.
In the same way Is Terraform in demand? TerraForm is an essential DevOps tool that is used to version infrastructure as code. It is also one of the most popular infrastructures as code tools available in the market, one of the reasons behind its popularity is because of its widespread support of multiple providers like AWS, Azure, GCP, and many more.
What is the difference between cloud formation CF and Terraform?
CloudFormation covers most parts of AWS and needs some time to support new service capabilities. Terraform covers most AWS resources as well and is often faster than CloudFormation when it comes to supporting new AWS features. On top of that, Terraform supports other cloud providers as well as 3rd party services.
Is Terraform difficult?
It’s really very easy to get started with Terraform. It’s only when you start to collaborate with others and start leveraging source control and external modules that it can get really complicated.
Is Terraform like Docker?
Docker and Terraform are primarily classified as “Virtual Machine Platforms & Containers” and “Infrastructure Build” tools respectively. Some of the features offered by Docker are: Integrated developer tools.
What is Terraform vs Jenkins?
In a nutshell Jenkins CI is the leading open-source continuous integration server. Built with Java, it provides over 300 plugins to support building and testing virtually any project; Terraform: Describe your complete infrastructure as code and build resources across providers.
Why is Terraform not Ansible?
Terraform uses cloud provider APIs to provision and de-provision the infrastructure based on declared resources. Ansible on the other hand is also capable of provisioning the cloud infrastructure but it is not comprehensive enough. It is mainly geared towards configuration management.
What is a stack in Terraform?
A stack represents a collection of infrastructure that CDK for Terraform (CDKTF) synthesizes as a dedicated Terraform configuration. Stacks allow you to separate the state management for multiple environments within an application.
Should I use CDK or Terraform?
Conclusions. Both Terraform and AWS CDK are excellent IaC tools to create and maintain cloud infrastructures. Terraform is more purely declarative, and with AWS CDK, you can use your favorite programming language with imperative style.
Is Terraform better than CloudFormation?
If you’re mainly working with AWS resources, CloudFormation might work best for you. If your infrastructure relies on many third-party resources, Terraform might be a better fit.
How do you practice Terraform?
Terraform Best Practices
- Run terraform command with var-file.
- Enable version control on terraform state files bucket.
- Manage S3 backend for tfstate files. …
- Manage multiple Terraform modules and environments easily with Terragrunt.
- Retrieve state meta data from a remote backend.
- Turn on debug when you need do troubleshooting.
What are Terraform modules?
A Terraform module is a set of Terraform configuration files in a single directory. Even a simple configuration consisting of a single directory with one or more .tf files is a module. When you run Terraform commands directly from such a directory, it is considered the root module.
What is the difference between terraform and Kubernetes?
Kubernetes vs Terraform
Kubernetes is a container orchestration platform that allows developers to manage clusters of containers like Docker containers, while Terraform is an open-source infrastructure-as-code software tool that provides developers with a consistent CLI workflow to manage hundreds of cloud services.
What is Docker compose vs Kubernetes?
Kubernetes and Docker Compose are both container orchestration frameworks. Kubernetes runs containers over a number of computers, virtual or real. Docker Compose runs containers on a single host machine.
How do I deploy Docker with terraform?
Part 2: build Docker images and deploy to Kubernetes
- Build a new Docker image.
- Push the new Docker image to the Docker Hub registry.
- Create a new GKE cluster using Terraform.
- Create a new Terraform Kubernetes Deployment using the Terraform Kubernetes provider.
- Destroy all the resources created using Terraform.
Is Terraform better than Ansible?
As we have known till now, Terraform works best with orchestration and Ansible is great at configuration management. Of course, they have the capabilities to perform each other’s tasks, although in a limited manner.
Can Jenkins run Terraform?
You’ll also be using a GitHub repository with a simple Terraform build job. It’ll install the Terraform binary as part of the job, execute a simple script, and clean up after itself. So, if your Jenkins server has internet access, you’re ready to go!
What is difference between Terraform and Ansible?
The main difference between Terraform and Ansible is that Terraform is declarative in defining the process by which results can be achieved. While using Terraform, code always represents the present status of the infrastructure.
Is Ansible imperative or declarative?
Provisioning with Ansible vs Terraform
Attribute | Terraform | Ansible |
---|---|---|
Language | Declarative | Imperative |
Provisioning | Specializes in infrastructure provisioning | Limited support for infrastructure provisioning |
LIfecycle management | Lifecycle aware. Maintains state of deployments. | No lifecycle awareness |
Command line operation | Yes | Yes |
• 8 févr. 2021
Can Ansible replace Terraform?
In this case, Ansible is a bit of a hybrid since it can do both, perform orchestration and replace infrastructure. Terraform is more widely used. It’s considered the superior product since it has advanced state management capabilities, which Ansible does not.
What is cloud formation tool?
CloudFormation is an infrastructure automation platform for AWS that deploys AWS resources in a repeatable, testable and auditable manner.
What is Terraform cloud?
Terraform Cloud is HashiCorp’s managed service offering. It eliminates the need for unnecessary tooling and documentation for practitioners, teams, and organizations to use Terraform in production. Provision infrastructure in a remote environment that is optimized for the Terraform workflow.
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