[Release 0.5.2]

Added

• Expose /metrics endpoint at port 8080
• Add cluster S3 spec prefix feature. Let user choose a prefix under the bucket.
• Add automountServiceAccountToken to pod policy. Let users disable automounting of the Kubernetes access token into etcd-operator controlled pods.
• Cluster backups can now be saved using Azure Blob Storage (ABS).

Deprecated

• Deprecate operator S3 flag. Add warning note for using it in this release. The flag will be removed in 0.6.0 release.