Merge pull request #61 from rtkwlf/AWN-193037-gcp

[AWN-193037] Remediation context for google.bucketRetentionPolicy

en/google/storage/storage-bucket-retention-policy.md

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+[![CloudSploit](https://cloudsploit.com/img/logo-new-big-text-100.png "CloudSploit")](https://cloudsploit.com)
+
+# GOOGLE / Storage / Storage Bucket Retention Policy
+
+## Quick Info
+
+| | |
+|-|-|
+| **Plugin Title** | Storage Bucket Retention Policy |
+| **Cloud** | GOOGLE |
+| **Category** | Storage |
+| **Description** | Ensures bucket retention policy is set and locked to prevent deleting or updating of bucket objects or retention policy. |
+| **More Info** | Configuring retention policy for bucket prevents accidental deletion as well as modification of bucket objects. This retention policy should also be locked to prevent policy deletion. |
+| **GOOGLE Link** | https://cloud.google.com/storage/docs/bucket-lock?_ga=2.221806616.-1645770163.1613190642 |
+| **Recommended Action** | Modify bucket to configure retention policy and lock retention policy. |
+
+## Detailed Remediation Steps
+1. Log into the Google Cloud Platform Console.
+2. Scroll down the left navigation panel and choose "Cloud Storage" to select the "Buckets" option.
+3. On the "Buckets" page, select the bucket which needs to be enabled, and click on the bucket's name.
+4. Select the Protection tab near the top of the page.
+5. In the Retention policy section, set your retention policy:
+  - If no retention policy currently applies to the bucket, click the + Set Retention Policy link. Choose a unit of time and a length of time for your retention period.
+  - If a retention policy currently applies to a bucket, it appears in the section. Click Edit to modify the retention time.
+6. To set a lock on the retention policy, click the Lock button.
+7. Upon clicking the Lock button, a Lock retention policy dialog box will appear. Read the Permanent notice. 
+8. In the Bucket name text box, type in the name of your bucket.
+9. Click Lock policy.