Add OpenTofu setup and configuration for AWS infrastructure

- Create action for setting up OpenTofu environment
- Update Terraform workflow to use OpenTofu for infrastructure management
- Modify backend configuration for S3 with new bucket and region
- Add S3 bucket resources with lifecycle configuration
- Update local variables and remove deprecated files
- Include required Python packages for OpenTofu

terraform/aws-iac/.vault

@@ -1 +0,0 @@
-../../repository.vault

terraform/aws-iac/backend.tf

@@ -1,7 +1,7 @@
 terraform {
   backend "s3" {
-    bucket = "a13labs.infra"
-    key    = "aws-alarms.tfstate"
-    region = "us-east-1"
+    bucket = "a13labs.infra.eu"
+    key    = "aws.core.infra.tfstate"
+    region = "eu-west-1"
   }
 }

terraform/aws-iac/buckets.tf

@@ -0,0 +1,51 @@
+resource "aws_s3_bucket" "infra_bucket" {
+  bucket        = "a13labs.infra.eu"
+  force_destroy = true
+}
+
+resource "aws_s3_bucket_public_access_block" "infra_bucket" {
+  bucket = aws_s3_bucket.infra_bucket.id
+
+  block_public_acls       = true
+  ignore_public_acls      = true
+  block_public_policy     = true
+  restrict_public_buckets = true
+}
+
+resource "aws_s3_bucket_versioning" "infra_bucket" {
+  bucket = aws_s3_bucket.infra_bucket.id
+
+  versioning_configuration {
+    status = "Enabled"
+  }
+}
+
+resource "aws_s3_bucket_lifecycle_configuration" "infra_bucket" {
+  bucket = aws_s3_bucket.infra_bucket.id
+
+  rule {
+    id     = "clenaup"
+    status = "Enabled"
+    filter {
+      prefix = "/"
+    }
+    expiration {
+      days = 30
+    }
+  }
+}
+
+import {
+  id = "a13labs.infra.eu"
+  to = aws_s3_bucket.infra_bucket
+}
+
+import {
+  id = "a13labs.infra.eu"
+  to = aws_s3_bucket_public_access_block.infra_bucket
+}
+
+import {
+  id = "a13labs.infra.eu"
+  to = aws_s3_bucket_versioning.infra_bucket
+}

terraform/aws-iac/config.tf

@@ -1,5 +1,8 @@
 locals {
-  region               = "us-east-1"
+  region               = "eu-west-1"
   billing_alarm_limit  = 20
-  billing_alarm_emails = "c.alexandre.pires@gmail.com"
+  billing_alarm_emails = "c.alexandre.pires@alexpires.me"
+  account_id           = data.aws_caller_identity.current.account_id
 }
+
+data "aws_caller_identity" "current" {}

terraform/aws-iac/variables.tf

@@ -1,4 +1,4 @@
 variable "region" {
   description = "AWS Default region"
-  default     = "us-east-1"
+  default     = "eu-west-1"
 }

terraform/aws-iac/vars/main.tfvars

@@ -1 +0,0 @@
-

terraform/aws-iac/versions.tf

@@ -1,3 +0,0 @@
-terraform {
-  required_version = ">= 0.13"
-}