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Allow full use of the AWS S3 SDK authentication options (#32270)

If an explicit AWS key pair and/or region is not provided in
config/storage.yml, attempt to use environment variables, shared
credentials, or IAM role credentials. Order of precedence is
determined by the AWS SDK[1].

[1]: https://docs.aws.amazon.com/sdk-for-ruby/v3/developer-guide/setup-config.html
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brianknight10 authored and pixeltrix committed Mar 19, 2018
1 parent db8cce2 commit c1600009b2bbb3b67db20ddb14fef34d4cfa82bc
@@ -1,3 +1,11 @@
* Allow full use of the AWS S3 SDK options for authentication. If an
explicit AWS key pair and/or region is not provided in `storage.yml`,
attempt to use environment variables, shared credentials, or IAM
(instance or task) role credentials. Order of precedence is determined
by the [AWS SDK](https://docs.aws.amazon.com/sdk-for-ruby/v3/developer-guide/setup-config.html).
*Brian Knight*
* Rails 6 requires Ruby 2.4.1 or newer.
*Jeremy Daer*
@@ -9,8 +9,8 @@ module ActiveStorage
class Service::S3Service < Service
attr_reader :client, :bucket, :upload_options
def initialize(access_key_id:, secret_access_key:, region:, bucket:, upload: {}, **options)
@client = Aws::S3::Resource.new(access_key_id: access_key_id, secret_access_key: secret_access_key, region: region, **options)
def initialize(bucket:, upload: {}, **options)
@client = Aws::S3::Resource.new(**options)
@bucket = @client.bucket(bucket)
@upload_options = upload
@@ -3,7 +3,7 @@
require "service/shared_service_tests"
require "net/http"
if SERVICE_CONFIGURATIONS[:s3] && SERVICE_CONFIGURATIONS[:s3][:access_key_id].present?
if SERVICE_CONFIGURATIONS[:s3]
class ActiveStorage::Service::S3ServiceTest < ActiveSupport::TestCase
SERVICE = ActiveStorage::Service.configure(:s3, SERVICE_CONFIGURATIONS)
@@ -114,6 +114,13 @@ gem "aws-sdk-s3", require: false
NOTE: The core features of Active Storage require the following permissions: `s3:ListBucket`, `s3:PutObject`, `s3:GetObject`, and `s3:DeleteObject`. If you have additional upload options configured such as setting ACLs then additional permissions may be required.
NOTE: If you want to use environment variables, standard SDK configuration files, profiles,
IAM instance profiles or task roles, you can omit the `access_key_id`, `secret_access_key`,
and `region` keys in the example above. The Amazon S3 Service supports all of the
authentication options described in the [AWS SDK documentation]
(https://docs.aws.amazon.com/sdk-for-ruby/v3/developer-guide/setup-config.html).
### Microsoft Azure Storage Service
Declare an Azure Storage service in `config/storage.yml`:

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