blog-terraform-aws-static-site-cloud-front.tf

locals {
  s3_origin_id = "s3-origin-${var.site_domain}"
}

resource "aws_cloudfront_origin_access_identity" "site" {
  comment = var.site_domain
}

resource "aws_cloudfront_distribution" "site" {
  tags = {
    name = var.tag
  }
  origin {

    domain_name = aws_s3_bucket.site.bucket_regional_domain_name
    origin_id   = local.s3_origin_id

    s3_origin_config {
      origin_access_identity = aws_cloudfront_origin_access_identity.site.cloudfront_access_identity_path
    }
  }

  enabled             = true
  is_ipv6_enabled     = true
  comment             = var.site_domain
  default_root_object = "index.html"

  default_cache_behavior {
    allowed_methods  = ["GET", "HEAD"]
    cached_methods   = ["GET", "HEAD"]
    target_origin_id = local.s3_origin_id

    forwarded_values {
      query_string = false
      cookies {
        forward = "none"
      }
    }

    viewer_protocol_policy = "redirect-to-https"
    min_ttl                = 0
    default_ttl            = 3600
    max_ttl                = 86400
  }

  restrictions {
    geo_restriction {
      restriction_type = "none"
    }
  }

  custom_error_response {
    error_caching_min_ttl = 3000
    error_code            = 404
    response_code         = 200
    response_page_path    = "/index.html"
  }

  custom_error_response {
    error_caching_min_ttl = 3000
    error_code            = 403
    response_code         = 200
    response_page_path    = "/index.html"
  }



  price_class = "PriceClass_200"

  # CloudFrontドメインの証明書を利用
  //viewer_certificate {
  //  cloudfront_default_certificate = true
  //}


  aliases = [var.site_domain]

  viewer_certificate {
    acm_certificate_arn      = aws_acm_certificate_validation.acm_cert.certificate_arn
    ssl_support_method       = "sni-only"
    minimum_protocol_version = "TLSv1"
  }
}