Customizing Per-Bucket Secrets Held in Credential Files

JCEKs credential files support the same per-bucket settings as those in XML files. To provide different credentials for different buckets, simply create par-bucket entries in the JCEKS file with the relevant secrets.


  1. Set base properties for fs.s3a.secret.key and fs.s3a.access.key in the JCEKS file. These will be the default.
  2. Set all non-security properties per-bucket for a bucket called "frankfurt-1" in the core-site.xml. These will override the base properties when talking to the bucket "frankfurt-1".
  3. For the AWS authentication secrets, set the fs.s3a.frankfurt-1.access.key and fs.s3a.frankfurt-1.secret.key properties in the JCEKS file.