chore: add demo .tfvars files and update README (#2)

Author: devandreacarratta

.gitignore

@@ -13,8 +13,8 @@ crash.*.log
 # password, private keys, and other secrets. These should not be part of version 
 # control as they are data points which are potentially sensitive and subject 
 # to change depending on the environment.
-*.tfvars
-*.tfvars.json
+# *.tfvars
+# *.tfvars.json
 
 # Ignore override files as they are usually used to override resources locally and so
 # are not checked in

README.md

@@ -9,43 +9,47 @@ This project provisions the following resources on AWS:
 - **S3 Bucket**: static website hosting
 - **CloudFront Distribution**: global CDN with HTTPS support
 - **DynamoDB Table**: to store product data
-- **Lambda Function**: `get_products`: read items from DynamoDB  
-- **Lambda Function**: `post_products`: write items into DynamoDB  
+- **Lambda Function**: `get_products`: read items from DynamoDB
+- **Lambda Function**: `post_products`: write items into DynamoDB
 
 ### Architecture Diagram
+
 ![Infrastructure Diagram](src/infra/graph.png)
 
 ## Project structure:
 
 The project is under the src folder.
 
-- **infra**: contains all Terraform files; run `terraform` commands from here  
-- **infra-modules**: reusable Terraform modules for resources  
-- **lambda-function-python**: Python source code for Lambda functions  
-- **lambda-function-python-zip**: folder used by Terraform to generate Lambda ZIPs  
-- **web-template**: static web templates to be uploaded to S3  
+- **infra**: contains all Terraform files; run `terraform` commands from here
+- **infra-modules**: reusable Terraform modules for resources
+- **lambda-function-python**: Python source code for Lambda functions
+- **lambda-function-python-zip**: folder used by Terraform to generate Lambda ZIPs
+- **web-template**: static web templates to be uploaded to S3
 
 ## 🚀 Commands
 
 Initialize, plan and apply:
 
 ```bash
 terraform init
-terraform plan -var-file=variables/dev.tfvars
-terraform apply -var-file=variables/dev.tfvars
+terraform plan -var-file='variables/dev.tfvars'
+terraform apply -var-file='variables/dev.tfvars'
 ```
 
 Destroy infrastructure:
 
 ```bash
-terraform destroy -var-file=variables/dev.tfvars
+terraform destroy -var-file='variables/dev.tfvars'
 ```
 
-## Future Enhancements  
-Stay tuned! This project will be extended with new features and improvements, making it an even more complete serverless case study. 🚀  
+## Future Enhancements
+
+Stay tuned! This project will be extended with new features and improvements, making it an even more complete serverless case study. 🚀
 
 ## License
+
 This project is licensed under the **MIT License**. Use at your own risk. If something breaks, **it's your problem!** 😆
 
 ---
-🚀 Happy Coding!
+
+🚀 Happy Coding!

src/infra/.terraform.lock.hcl

@@ -0,0 +1,7 @@
+# This .tfvars file is included for demonstration purposes only.
+# In real projects, .tfvars files should NOT be committed to version control
+# as they often contain sensitive information (e.g., passwords, API keys)
+# and environment-specific values that change over time.
+
+aws_region          = "eu-central-1"
+project_environment = "dev"

src/infra/variables/dev.tfvars

@@ -0,0 +1,7 @@
+# This .tfvars file is included for demonstration purposes only.
+# In real projects, .tfvars files should NOT be committed to version control
+# as they often contain sensitive information (e.g., passwords, API keys)
+# and environment-specific values that change over time.
+
+aws_region          = "eu-central-1"
+project_environment = "prod"

src/infra/variables/prod.tfvars

@@ -0,0 +1,7 @@
+# This .tfvars file is included for demonstration purposes only.
+# In real projects, .tfvars files should NOT be committed to version control
+# as they often contain sensitive information (e.g., passwords, API keys)
+# and environment-specific values that change over time.
+
+aws_region          = "eu-central-1"
+project_environment = "qa"