Add support for a custom cache policy for ordered cache (#169)

* Add support for cache policy for ordered_cache_behavior

* Add support for cache policy for ordered_cache_behavior

* Add support for cache policy for ordered_cache_behavior

* Add support for cache policy for ordered_cache_behavior

* Add support for cache policy for ordered_cache_behavior

* Auto Format

Co-authored-by: cloudpossebot <[email protected]>

README.md

@@ -430,7 +430,7 @@ Available targets:
 | <a name="input_minimum_protocol_version"></a> [minimum\_protocol\_version](#input\_minimum\_protocol\_version) | Cloudfront TLS minimum protocol version.<br>If `var.acm_certificate_arn` is unset, only "TLSv1" can be specified. See: [AWS Cloudfront create-distribution documentation](https://docs.aws.amazon.com/cli/latest/reference/cloudfront/create-distribution.html)<br>and [Supported protocols and ciphers between viewers and CloudFront](https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/secure-connections-supported-viewer-protocols-ciphers.html#secure-connections-supported-ciphers) for more information.<br>Defaults to "TLSv1.2\_2019" unless `var.acm_certificate_arn` is unset, in which case it defaults to `TLSv1` | `string` | `""` | no |
 | <a name="input_name"></a> [name](#input\_name) | Solution name, e.g. 'app' or 'jenkins' | `string` | `null` | no |
 | <a name="input_namespace"></a> [namespace](#input\_namespace) | Namespace, which could be your organization name or abbreviation, e.g. 'eg' or 'cp' | `string` | `null` | no |
-| <a name="input_ordered_cache"></a> [ordered\_cache](#input\_ordered\_cache) | An ordered list of [cache behaviors](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/cloudfront_distribution#cache-behavior-arguments) resource for this distribution.<br>List in order of precedence (first match wins). This is in addition to the default cache policy.<br>Set `target_origin_id` to `""` to specify the S3 bucket origin created by this module. | <pre>list(object({<br>    target_origin_id = string<br>    path_pattern     = string<br><br>    allowed_methods = list(string)<br>    cached_methods  = list(string)<br>    compress        = bool<br><br>    viewer_protocol_policy = string<br>    min_ttl                = number<br>    default_ttl            = number<br>    max_ttl                = number<br><br>    forward_query_string  = bool<br>    forward_header_values = list(string)<br>    forward_cookies       = string<br><br>    lambda_function_association = list(object({<br>      event_type   = string<br>      include_body = bool<br>      lambda_arn   = string<br>    }))<br><br>    function_association = list(object({<br>      event_type   = string<br>      function_arn = string<br>    }))<br>  }))</pre> | `[]` | no |
+| <a name="input_ordered_cache"></a> [ordered\_cache](#input\_ordered\_cache) | An ordered list of [cache behaviors](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/cloudfront_distribution#cache-behavior-arguments) resource for this distribution.<br>List in order of precedence (first match wins). This is in addition to the default cache policy.<br>Set `target_origin_id` to `""` to specify the S3 bucket origin created by this module. | <pre>list(object({<br>    target_origin_id = string<br>    path_pattern     = string<br><br>    allowed_methods = list(string)<br>    cached_methods  = list(string)<br>    compress        = bool<br><br>    cache_policy_id          = string<br>    origin_request_policy_id = string<br><br>    viewer_protocol_policy = string<br>    min_ttl                = number<br>    default_ttl            = number<br>    max_ttl                = number<br><br>    forward_query_string  = bool<br>    forward_header_values = list(string)<br>    forward_cookies       = string<br><br>    lambda_function_association = list(object({<br>      event_type   = string<br>      include_body = bool<br>      lambda_arn   = string<br>    }))<br><br>    function_association = list(object({<br>      event_type   = string<br>      function_arn = string<br>    }))<br>  }))</pre> | `[]` | no |
 | <a name="input_origin_bucket"></a> [origin\_bucket](#input\_origin\_bucket) | Name of an existing S3 bucket to use as the origin. If this is not provided, it will create a new s3 bucket using `var.name` and other context related inputs | `string` | `null` | no |
 | <a name="input_origin_force_destroy"></a> [origin\_force\_destroy](#input\_origin\_force\_destroy) | Delete all objects from the bucket so that the bucket can be destroyed without error (e.g. `true` or `false`) | `bool` | `false` | no |
 | <a name="input_origin_path"></a> [origin\_path](#input\_origin\_path) | An optional element that causes CloudFront to request your content from a directory in your Amazon S3 bucket or your custom origin. It must begin with a /. Do not add a / at the end of the path. | `string` | `""` | no |

docs/terraform.md

@@ -110,7 +110,7 @@
 | <a name="input_minimum_protocol_version"></a> [minimum\_protocol\_version](#input\_minimum\_protocol\_version) | Cloudfront TLS minimum protocol version.<br>If `var.acm_certificate_arn` is unset, only "TLSv1" can be specified. See: [AWS Cloudfront create-distribution documentation](https://docs.aws.amazon.com/cli/latest/reference/cloudfront/create-distribution.html)<br>and [Supported protocols and ciphers between viewers and CloudFront](https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/secure-connections-supported-viewer-protocols-ciphers.html#secure-connections-supported-ciphers) for more information.<br>Defaults to "TLSv1.2\_2019" unless `var.acm_certificate_arn` is unset, in which case it defaults to `TLSv1` | `string` | `""` | no |
 | <a name="input_name"></a> [name](#input\_name) | Solution name, e.g. 'app' or 'jenkins' | `string` | `null` | no |
 | <a name="input_namespace"></a> [namespace](#input\_namespace) | Namespace, which could be your organization name or abbreviation, e.g. 'eg' or 'cp' | `string` | `null` | no |
-| <a name="input_ordered_cache"></a> [ordered\_cache](#input\_ordered\_cache) | An ordered list of [cache behaviors](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/cloudfront_distribution#cache-behavior-arguments) resource for this distribution.<br>List in order of precedence (first match wins). This is in addition to the default cache policy.<br>Set `target_origin_id` to `""` to specify the S3 bucket origin created by this module. | <pre>list(object({<br>    target_origin_id = string<br>    path_pattern     = string<br><br>    allowed_methods = list(string)<br>    cached_methods  = list(string)<br>    compress        = bool<br><br>    viewer_protocol_policy = string<br>    min_ttl                = number<br>    default_ttl            = number<br>    max_ttl                = number<br><br>    forward_query_string  = bool<br>    forward_header_values = list(string)<br>    forward_cookies       = string<br><br>    lambda_function_association = list(object({<br>      event_type   = string<br>      include_body = bool<br>      lambda_arn   = string<br>    }))<br><br>    function_association = list(object({<br>      event_type   = string<br>      function_arn = string<br>    }))<br>  }))</pre> | `[]` | no |
+| <a name="input_ordered_cache"></a> [ordered\_cache](#input\_ordered\_cache) | An ordered list of [cache behaviors](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/cloudfront_distribution#cache-behavior-arguments) resource for this distribution.<br>List in order of precedence (first match wins). This is in addition to the default cache policy.<br>Set `target_origin_id` to `""` to specify the S3 bucket origin created by this module. | <pre>list(object({<br>    target_origin_id = string<br>    path_pattern     = string<br><br>    allowed_methods = list(string)<br>    cached_methods  = list(string)<br>    compress        = bool<br><br>    cache_policy_id          = string<br>    origin_request_policy_id = string<br><br>    viewer_protocol_policy = string<br>    min_ttl                = number<br>    default_ttl            = number<br>    max_ttl                = number<br><br>    forward_query_string  = bool<br>    forward_header_values = list(string)<br>    forward_cookies       = string<br><br>    lambda_function_association = list(object({<br>      event_type   = string<br>      include_body = bool<br>      lambda_arn   = string<br>    }))<br><br>    function_association = list(object({<br>      event_type   = string<br>      function_arn = string<br>    }))<br>  }))</pre> | `[]` | no |
 | <a name="input_origin_bucket"></a> [origin\_bucket](#input\_origin\_bucket) | Name of an existing S3 bucket to use as the origin. If this is not provided, it will create a new s3 bucket using `var.name` and other context related inputs | `string` | `null` | no |
 | <a name="input_origin_force_destroy"></a> [origin\_force\_destroy](#input\_origin\_force\_destroy) | Delete all objects from the bucket so that the bucket can be destroyed without error (e.g. `true` or `false`) | `bool` | `false` | no |
 | <a name="input_origin_path"></a> [origin\_path](#input\_origin\_path) | An optional element that causes CloudFront to request your content from a directory in your Amazon S3 bucket or your custom origin. It must begin with a /. Do not add a / at the end of the path. | `string` | `""` | no |

main.tf

@@ -448,12 +448,19 @@ resource "aws_cloudfront_distribution" "default" {
       compress         = ordered_cache_behavior.value.compress
       trusted_signers  = var.trusted_signers
 
-      forwarded_values {
-        query_string = ordered_cache_behavior.value.forward_query_string
-        headers      = ordered_cache_behavior.value.forward_header_values
+      cache_policy_id          = ordered_cache_behavior.value.cache_policy_id
+      origin_request_policy_id = ordered_cache_behavior.value.origin_request_policy_id
 
-        cookies {
-          forward = ordered_cache_behavior.value.forward_cookies
+      dynamic "forwarded_values" {
+        # If a cache policy or origin request policy is specified, we cannot include a `forwarded_values` block at all in the API request
+        for_each = ordered_cache_behavior.value.cache_policy_id == null || ordered_cache_behavior.value.origin_request_policy_id == null ? [true] : []
+        content {
+          query_string = ordered_cache_behavior.value.forward_query_string
+          headers      = ordered_cache_behavior.value.forward_header_values
+
+          cookies {
+            forward = ordered_cache_behavior.value.forward_cookies
+          }
         }
       }
 

variables.tf

@@ -356,6 +356,9 @@ variable "ordered_cache" {
     cached_methods  = list(string)
     compress        = bool
 
+    cache_policy_id          = string
+    origin_request_policy_id = string
+
     viewer_protocol_policy = string
     min_ttl                = number
     default_ttl            = number