feat(object module): Detection of content type

[MaximilianoAguirre]

Description

This PR implements a feature to detect the content type based in the value of the key set to the object once uploaded. It uses a mime types DB used by a JS library with great adoption which bases the definitions mainly in IANA standards. There is a local copy of the DB that can be used, and an optional variable that allows to download a DB when running terraform.

If content_type variable is set, everything is disabled.

Motivation and Context

Often when uploading s3 objects to s3 through terraform resources it is difficult to dynamically set the content type of the object, specially when iterating with fileset. Content type is quite important in certain scenarios, for example when using the bucket as a website (the Content-Type header sent in the HTTP header to the client will rely on this).

Breaking Changes

There is a new dependency of the hashicorp/http provider in order to be able to expose the on demand query of the DB feature. It is not a breaking change but a new dependency that existing environments might have conflicts with.

How Has This Been Tested?

• [x] I have updated at least one of the examples/* to demonstrate and validate my change(s)
• [x] I have tested and validated these changes using one or more of the provided examples/* projects

Based in the examples/object, many of the possible combinations of variables to create an object have been successfully deployed:

module "object" {
  source = "../../modules/object"

  bucket      = module.s3_bucket.s3_bucket_id
  key         = "${random_pet.this.id}-local.md"
  file_source = "README.md"
}

module "object_without_extension" {
  source = "../../modules/object"

  bucket      = module.s3_bucket.s3_bucket_id
  key         = "${random_pet.this.id}-local"
  file_source = "README.md"
}

module "object_with_content_type" {
  source = "../../modules/object"

  bucket       = module.s3_bucket.s3_bucket_id
  key          = "${random_pet.this.id}-local"
  content_type = "plain/text"
  file_source  = "README.md"
}

module "object_with_content_type_query" {
  source = "../../modules/object"

  bucket           = module.s3_bucket.s3_bucket_id
  key              = "${random_pet.this.id}-local.md"
  query_mime_types = true
  file_source      = "README.md"
}

module "object_with_content_type_disabled" {
  source = "../../modules/object"

  bucket              = module.s3_bucket.s3_bucket_id
  key                 = "${random_pet.this.id}-local.md"
  detect_content_type = false
  file_source         = "README.md"
}

• [x] I have executed pre-commit run -a on my pull request

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This PR was automatically closed because of stale in 10 days

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