Chung-En Lee created HDDS-16488:
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Summary: Support GetBucketObjectLockConfiguration
Key: HDDS-16488
URL: https://issues.apache.org/jira/browse/HDDS-16488
Project: Apache Ozone
Issue Type: Sub-task
Reporter: Chung-En Lee
Implement the S3 {{GetBucketObjectLockConfiguration}} operation to allow users
to retrieve the Object Lock status and default retention settings of a bucket.
This task covers S3 Gateway REST routing, OM authorization, and {{BucketTable}}
read resolution.
{*}1. S3 Gateway ({{{}hadoop-ozone/s3gateway{}}}){*}:
* Add route handler for {{{}GET /\{bucket}?object-lock{}}}.
* Forward the request to Ozone Manager via client protocol.
* Serialize the returned configuration into the standard S3
{{ObjectLockConfiguration}} XML response:
** {{<ObjectLockEnabled>Enabled</ObjectLockEnabled>}}
** Optional
{{<Rule><DefaultRetention><Mode>...</Mode><Days>...</Days></DefaultRetention></Rule>}}
* Map OM exceptions to standard S3 error responses:
** Return {{404 NoSuchBucket}} if the target bucket does not exist.
** Return {{404 ObjectLockConfigurationNotFoundError}} ({{{}The specified
object does not have a ObjectLock configuration{}}}) if the bucket exists but
{{objectLockEnabled}} is {{{}false{}}}.
{*}2. Protobuf Protocol ({{{}OmClientProtocol.proto{}}}) & OM Client{*}:
* Add RPC messages:
** {{GetBucketObjectLockConfigRequest}} (contains {{{}volumeName{}}},
{{{}bucketName{}}}).
** {{GetBucketObjectLockConfigResponse}} (contains {{objectLockEnabled}} and
optional {{{}defaultRetention{}}}).
* Register request in {{OmClientProtocol}} and wire through
{{{}OzoneManagerProtocolClientSideTranslatorPB{}}}.
{*}3. OM Read Path / Metadata Handler ({{{}hadoop-ozone/ozone-manager{}}}){*}:
* Authorize the incoming request against Ranger action
{{GetBucketObjectLockConfiguration}} (requiring bucket {{READ}} permission).
* Acquire bucket read lock and lookup target bucket in {{{}BucketTable{}}}.
* If bucket does not exist, throw {{{}BUCKET_NOT_FOUND{}}}.
* Check if object lock is enable.
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