atlantis/website/terraform/modules/cloudfront_distribution/main.tf

resource "aws_cloudfront_distribution" "website_distribution" {
  origin {
    custom_origin_config {
      http_port              = "80"
      https_port             = "443"
      origin_protocol_policy = "http-only"
      origin_ssl_protocols   = ["TLSv1", "TLSv1.1", "TLSv1.2"]
    }

    domain_name = "${var.domain_name}"
    origin_id   = "${var.origin_id}"
  }

  enabled             = true
  default_root_object = "index.html"

  default_cache_behavior {
    // All values are defaults from the AWS console.
    viewer_protocol_policy = "redirect-to-https"
    compress               = true
    allowed_methods        = ["GET", "HEAD"]
    cached_methods         = ["GET", "HEAD"]
    target_origin_id       = "${var.origin_id}"
    min_ttl                = 0
    default_ttl            = 86400
    max_ttl                = 31536000

    forwarded_values {
      query_string = false

      cookies {
        forward = "none"
      }
    }
  }

  aliases = ["${var.cnames}"]

  restrictions {
    geo_restriction {
      restriction_type = "none"
    }
  }

  viewer_certificate {
    acm_certificate_arn = "${var.acm_certificate_arn}"
    ssl_support_method  = "sni-only"
  }
}