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‎LICENSE

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‎README.md

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# tf_aws_cloudfront
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Terraform module which creates AWS Cloudfront resources
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A Terraform module containing typical AWS CloudFront distribution.
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## Assumptions
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* HTTPS traffic (so CF will offload HTTPS to HTTP)
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* You've uploaded an SSL certificate to AWS/IAM
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* Logging is created by default to separate S3 bucket
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## Input Variables
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* `name` - [mandatory] name you will see in i.e. in tags.
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* `certificate_arn` - [mandatory] Existing certificate arn.
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* `domains` - list of CNAME's to be associated with the CF (can be empty).
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* `bucket_name` - S3 bucket name to be source for data served by CF.
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* `compress` - Whether you want CloudFront to automatically compress content for web requests that include Accept-Encoding: gzip in the request header.
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* `ipv6_enabled` - Whether the IPv6 is enabled for the distribution.
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* `comment` - Comment used in both `aws_cloudfront_origin_access_identity` and `aws_cloudfront_distribution`.
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* `log_include_cookies` - Specifies whether you want CloudFront to include cookies in access logs.
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* `log_bucket` - Name of the bucket to place CF access logs.
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* `log_prefix` - An optional string that you want CloudFront to prefix to the access log filenames for this distribution, for example, `cf_logs/.`.
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* `price_class` - The price class for this distribution. One of PriceClass_All, PriceClass_200, PriceClass_100 (default).
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* `viewer_protocol_policy` - Use this element to specify the protocol that users can use to access the files in the origin specified by TargetOriginId when a request matches the path pattern in PathPattern. One of allow-all, https-only, or redirect-to-https (default).
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* `allowed_methods` - Controls which HTTP methods CloudFront processes and forwards to your Amazon S3 bucket or your custom origin.
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* `cached_methods` - Controls whether CloudFront caches the response to requests using the specified HTTP methods.
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* `min_ttl` - The minimum amount of time that you want objects to stay in CloudFront caches before CloudFront queries your origin to see whether the object has been updated.
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* `max_ttl` - The maximum amount of time (in seconds) that an object is in a CloudFront cache before CloudFront forwards another request to your origin to determine whether the object has been updated. Only effective in the presence of Cache-Control max-age, Cache-Control s-maxage, and Expires headers.
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* `default_ttl` - The default amount of time (in seconds) that an object is in a CloudFront cache before CloudFront forwards another request in the absence of an Cache-Control max-age or Expires header.
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* `tags` - A mapping of tags to assign to the resource. By default `Name` is set.
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## Outputs
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* cf_id - The identifier for the distribution. For example: EDFDVBD632BHDS5.
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* cf_arn - The ARN (Amazon Resource Name) for the distribution. For example: arn:aws:cloudfront::123456789012:distribution/EDFDVBD632BHDS5, where 123456789012 is your AWS account ID.
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* cf_status - The current status of the distribution. Deployed if the distribution's information is fully propagated throughout the Amazon CloudFront system.
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* active_trusted_signers - The key pair IDs that CloudFront is aware of for each trusted signer, if the distribution is set up to serve private content with signed URLs.
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* cf_domain_name - The domain name corresponding to the distribution. For example: d604721fxaaqy9.cloudfront.net.
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* cf_etag - The current version of the distribution's information. For example: E2QWRUHAPOMQZL.
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* cf_hosted_zone_id - The CloudFront Route 53 zone ID that can be used to route an Alias Resource Record Set to. This attribute is simply an alias for the zone ID Z2FDTNDATAQYW2.
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* s3_bucket_id - S3 bucket id
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* s3_bucket_arn - S3 bucket arn
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## Usage example:
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```
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module "cf_distro" {
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source = "github.com/terraform-community-modules/tf_aws_cf"
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name = "tf-${terraform.env}-my-cf"
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domains = ["whatever-${terraform.env}.${var.domain}"]
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certificate_arn = "arn:aws:acm:us-east-1:123456789123:certificate/11111111-2222-3333-4444-555555555555"
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bucket_name = "tf-${terraform.env}-my-cf-bucket"
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comment = "Managed by Terraform"
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log_include_cookies = "false"
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log_bucket = "tf-${terraform.env}-log-bucket-for-my-cf"
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allowed_methods = ["GET", "HEAD"]
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tags = {
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"Terraform" = "true"
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"Environment" = "${terraform.env}"
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}
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}
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```
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## Contributing
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Report issues/questions/feature requests on in the [Issues](https://github.com/terraform-community-modules/tf_aws_cf/issues) section.
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Pull requests are welcome! Ideally create a feature branch and issue for every
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individual change you make. These are the steps:
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1. Fork the repo.
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2. Create your feature branch from master (`git checkout -b my-new-feature`).
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4. Commit your awesome changes (`git commit -am 'Added some feature'`).
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5. Push to the branch (`git push origin my-new-feature`).
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6. Create a new Pull Request and tell us about your changes.
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## Change log
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For description of changes please refer to commit descriptions
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## Authors
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Created and maintained by [Marek Kwasecki](https://github.com/kwach) - marek.kwasecki@radpoint.pl.
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## License
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Apache v2.0 Licensed. See [LICENSE](LICENSE) for full details.
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‎main.tf

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# --- S3 bucket ---
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data "aws_iam_policy_document" "s3_policy_cf_bucket" {
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statement {
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actions = ["s3:GetObject"]
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resources = ["arn:aws:s3:::${var.bucket_name}/*"]
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principals {
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type = "AWS"
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identifiers = ["${aws_cloudfront_origin_access_identity.origin_access_identity.iam_arn}"]
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}
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}
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statement {
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actions = ["s3:ListBucket"]
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resources = ["arn:aws:s3:::${var.bucket_name}"]
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principals {
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type = "AWS"
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identifiers = ["${aws_cloudfront_origin_access_identity.origin_access_identity.iam_arn}"]
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}
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}
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}
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resource "aws_s3_bucket" "bucket" {
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bucket = "${var.bucket_name}"
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acl = "private"
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policy = "${data.aws_iam_policy_document.s3_policy_cf_bucket.json}"
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tags = "${merge("${var.tags}", map("Name", format("%s-bucket", var.name)))}"
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}
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# --- CloudFront ---
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resource "aws_cloudfront_origin_access_identity" "origin_access_identity" {
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comment = "access-identity-${var.name}"
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}
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resource "aws_s3_bucket" "log_bucket" {
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bucket = "${var.log_bucket}"
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#policy = "${data.aws_iam_policy_document.s3_policy_cf_logs.json}"
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force_destroy = true
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tags = "${merge(var.tags, map("Name", format("%s", var.log_bucket)))}"
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}
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resource "aws_cloudfront_distribution" "cf" {
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enabled = "true"
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is_ipv6_enabled = "${var.ipv6_enabled}"
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comment = "${var.comment}"
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default_root_object = "index.html"
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price_class = "${var.price_class}"
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logging_config = {
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include_cookies = "${var.log_include_cookies}"
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bucket = "${var.log_bucket}.s3.amazonaws.com"
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prefix = "${var.log_prefix}"
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}
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aliases = ["${var.domains}"]
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origin {
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domain_name = "${aws_s3_bucket.bucket.bucket_domain_name}"
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origin_id = "${var.bucket_name}"
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s3_origin_config {
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origin_access_identity = "${aws_cloudfront_origin_access_identity.origin_access_identity.cloudfront_access_identity_path}"
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}
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}
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viewer_certificate {
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acm_certificate_arn = "${var.certificate_arn}"
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ssl_support_method = "sni-only"
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minimum_protocol_version = "TLSv1"
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}
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default_cache_behavior {
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allowed_methods = "${var.allowed_methods}"
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cached_methods = "${var.cached_methods}"
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target_origin_id = "${var.bucket_name}"
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compress = "${var.compress}"
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forwarded_values {
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query_string = false
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cookies {
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forward = "none"
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}
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}
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viewer_protocol_policy = "${var.viewer_protocol_policy}"
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min_ttl = "${var.min_ttl}"
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default_ttl = "${var.default_ttl}"
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max_ttl = "${var.max_ttl}"
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}
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"restrictions" {
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"geo_restriction" {
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restriction_type = "none"
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}
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}
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tags = "${merge("${var.tags}", map("Name", format("%s", var.name)))}"
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depends_on = ["aws_s3_bucket.log_bucket"]
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}

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