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Quiesce I/O in application containers before creating a Snapshot/Clone #46

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nixpanic opened this issue Oct 5, 2022 · 1 comment
Open

Quiesce I/O in application containers before creating a Snapshot/Clone #46

nixpanic opened this issue Oct 5, 2022 · 1 comment
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enhancement New feature or request

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@nixpanic
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nixpanic commented Oct 5, 2022

It would be amazing if CSI-Addons can provide a way to temporary quiesce I/O while a volume snapshot is made.

The process could look a little like this:

  1. a user initiates Quiesce
  2. csi-addons execs a command in the application container (flush I/O, pause VM, ...)
  3. csi-addons calls fsfreeze or similar the NodePlugin where the volume is mounted
  4. the user creates a snapshot/clone
  5. csi-addons calls unfreeze or similar the NodePlugin where the volume is mounted
  6. csi-addons execs a command in the application container (resume VM, ...)
@nixpanic nixpanic added the enhancement New feature or request label Oct 5, 2022
@Madhu-1
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Madhu-1 commented Oct 5, 2022

is it similar to the proposal kubernetes/enhancements#1995?

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@nixpanic @Madhu-1