Support multiple data-disks for the machines.

[hardikdr]

What would you like to be added: Currently, MCM boots-up the machines with only one root disk, we should allow users to be able to attach multiple worker-disks. There has been already some work done in this area, this is the umbrella issue to track the overall progress of the feature, along with integration with Gardener.

Progress at different providers:

• AWS

  • [x] Adapt MCM
  • [x] Adapt worker-extension (https://github.com/gardener/gardener-extension-provider-aws/pull/105)
  • [x] Worker-disk based on snapshots (https://github.com/gardener/gardener-extension-provider-aws/pull/112)

• GCP

  • [x] Adapt MCM
  • [x] Adapt worker-extension (https://github.com/gardener/gardener-extension-provider-gcp/pull/71)

• Azure

  • [x] Adapt MCM
  • [x] Adapt worker-extension (https://github.com/gardener/gardener-extension-provider-azure/pull/107)

• Alicloud

  • [x] Adapt MCM
  • [x] Adapt worker-extension (https://github.com/gardener/gardener-extension-provider-alicloud/pull/97)

• Openstack

  • [ ] Adapt MCM
  • [ ] Adapt worker-extension

[hardikdr]

From: https://github.com/gardener/machine-controller-manager/issues/338

yarivlifchuk commented on Oct 7, 2019 • Application Studio (Web IDE DevX) uses ephemeral disk in AliCloud,AWS,Azure,NS2 Encrypted Ephemeral storage (not storage class) requires allocate additional Disk for each node and make it encrypted. in AliCloud there is only a System Disk and not a Data Disk.System Disk is not encrypted (for OS use). The requirement for encrypted data disk is coming from SAP IT Global Security

Impact: Operator IaaS can take the disk and expose the customer data. WebIDE is going GA on Ali on Sep 2019

[himanshu-kun]

cc @kon-angelo for updates on openstack part

[himanshu-kun]

cc @briantopping for updates on VMware vsphere side