iac: add backend infrastructure terraform config

provider.aws.cloudfront.tf

@@ -0,0 +1,49 @@
+data "aws_cloudfront_cache_policy" "caching_optimized" {
+  name = "Managed-CachingOptimized"
+}
+
+locals {
+  cloudfront_s3_origin_id = "s3origin"
+}
+
+resource "aws_cloudfront_distribution" "created" {
+  enabled             = true
+  is_ipv6_enabled     = true
+  aliases             = [var.domain_name]
+  default_root_object = var.aws_cloudfront_default_root_object
+  price_class         = var.aws_cloudfront_price_class
+  http_version        = "http2and3"
+  origin {
+    domain_name              = aws_s3_bucket.created.bucket_regional_domain_name
+    origin_id                = local.cloudfront_s3_origin_id
+    origin_access_control_id = aws_cloudfront_origin_access_control.s3_access.id
+  }
+  default_cache_behavior {
+    allowed_methods        = ["GET", "HEAD", "OPTIONS"]
+    cached_methods         = ["GET", "HEAD"]
+    cache_policy_id        = data.aws_cloudfront_cache_policy.caching_optimized.id
+    target_origin_id       = local.cloudfront_s3_origin_id
+    viewer_protocol_policy = "redirect-to-https"
+    compress               = true
+  }
+  restrictions {
+    geo_restriction {
+      restriction_type = "none"
+      locations        = []
+    }
+  }
+  viewer_certificate {
+    acm_certificate_arn      = aws_acm_certificate.created.arn
+    minimum_protocol_version = var.aws_cloudfront_minimum_protocol_version
+    ssl_support_method       = "sni-only"
+  }
+
+  depends_on = [aws_acm_certificate_validation.created]
+}
+
+resource "aws_cloudfront_origin_access_control" "s3_access" {
+  name                              = "${var.domain_name}_s3"
+  origin_access_control_origin_type = "s3"
+  signing_behavior                  = "always"
+  signing_protocol                  = "sigv4"
+}