Objective

Creating and managing all available resources offered by major cloud providers exclusively in free-tier plans. Using Terraform to create and manage all the resources in a simplified and centralized manner.

Motivation

Every major cloud provider offers a free tier that allows for some kind of resource free of charge, still, learning every cloud and managing these resources can prove burdensome to most.

The goal is to automate the management of these resources using Terraform as the centralizing tool. It also aims to provide resources for learning and improve your skills as a SRE/DevOps Engineer and as a Terraform user, even if you're developer that never touched cloud infrastructure, nowadays there's great value in learning these tools.

List of free-tier resources

Google Cloud Platform

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GCP Available Resources

• 1x Virtual Private Cloud (VPC)
  • 1x Firewall attached to the VPC
  • 1x Google Compute Engine f1-micro (1 shared vCPU - 0.2 dedicatd vCPU - and 0.6GB of Memory) attached to the VPC
• 1x 5GB of regional storage on Cloud Storage
• 1x 1GB of storage in a Firestore NoSQL Database

More information at the provider's documentation page.

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Amazon Web Services

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AWS Available Resources

• 2x Virtual Private Cloud (VPC)
  • 2x Sub-network attached to the VPC
  • 2x Internet Gateway (IGW) to provide access to the VPC
• 1x Route Table integrating all VPC, Subnet and the Internet Gateway (IGW)
• 1x EC2 Instance attached to the Subnet
• 1x Relational Database (RDS) of your choice (e.g. MySQL, PostgreSQL)
• 1x S3 Storage Bucket inside Subnet, configured to store the Terraform's backend state
• 1x DynamoDB Database, mainly used for preventing that running multiple instances of this Terraform chart corrupt each other.

More information at the provider's documentation page.

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Microsoft Azure _{^{(has limited testing)}}

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Available Resources

• 1x Linux Virtual machine, B1S Standard tier
• 1x Windows Virtual machine, B1S Standard tier
• 1x Cloud Storage (LRS File Storage)
• 1x 250GB MySQL Managed Database Instance

More information at the provider's documentation page.

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Oracle Cloud _{^{(not available)}}

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Available Resources

• 2x AMD based VM, 1/8 shared CPU and 1GB RAM
• 2x Oracle NoSQL Database with 20GB
• 1x 10GB Object Storage Capacity

More information at the provider's documentation page.

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❯ Getting started

terraform init
terraform apply

If you rather use a containerized environment:

git clone https://github.com/gruberdev/tf-free.git && \
cd tf-free && \
docker run -v $(pwd):/project -it ghcr.io/gruberdev/freetf:latest 

Terraform Module documentation (Click to expand)

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Modules

Name	Source	Version
aws	./modules/aws	n/a
google_cloud	./modules/gcp	n/a
terraform_state_backend	cloudposse/tfstate-backend/aws	0.38.1

Inputs

Name	Description	Type	Default
aws_default_region	Your default region for AWS resources creation. Available regions for Google Compute on Free Tier.	string	"us-east-1"
backend_destroy	Allows destroying all resourcesinside the configured S3 Remote Backend. See more at tf-free's Backend Documentation	string	"false"
backend_stage	Stages possible for Backend. Set for a random string.	string	"test"
ec2_aws	Allow for the creation of EC2 instances on AWS.	bool	true
gcp_instance_name	Your VM instance name. Naming resources convention	string	"gcp-machine"
gcp_project_id	Your static IP network nameP. Naming resources convention	string	"test"
gcp_project_region	Zone location of your instance, see the list of available regions - Terraform provider documentation	string	"us-west1"
gcp_storage_permissions	See all available values for the parameter at Predefined ACL's on GCS Permissions	string	"publicread"
prevents_destroy	Prevents destroying the previously provisioned S3 Remote Backend. See more at tf-free's Backend Documentation	bool	true
rds_aws	Allow for the creation of a PostgreSQL database on AWS	bool	true

Outputs

Name	Description
aws_ec2_ipv6_addresses	AWS EC2 IPv6 Public Address
aws_ec2_password_data	List of Base-64 encoded encrypted password data for AWS EC2 instances
aws_ec2_private_ip	AWS EC2 assigned Private IP
aws_ec2_public_ip	AWS EC2 IPv4 Public Address
db_backend_name	Name of the resulting DynamoDB created for locking state files.
gcp_public_ip	GCP VM Compute IPv4 Public Address
s3_backend_bucket	ID of the resulting S3 bucket created on AWS as part of the backend infrastructure
s3_backend_domain	Domain name of the S3 bucket created on AWS as part of the backend infrastructure

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License

The MIT license grant is not for Hashicorp's trademarks, which include the logo designs. Hashicorp reserves all trademark and copyright rights in and to all Hashicorp trademarks.

This repository is not associated with any of the cloud providers or Hashicorp. Terraform®, Vault®, Hashicorp's logos and names are Hasicorp's registered Trademarks. When using Hashicorp's logos, be sure to follow their community and brand usage guidelines. Be sure to read the terms of usage to understand the responsabilities involved.