KEP-1981 Windows HostProcess containers KEP updates for beta (kubernetes#2865)

* WIP: Windows HostProcess containers KEP updates for beta

Signed-off-by: Mark Rossetti <[email protected]>

* Fillling out PRR section

Signed-off-by: Mark Rossetti <[email protected]>

* Container Volume updates

Signed-off-by: Mark Rossetti <[email protected]>

* Container Image Build updates

Signed-off-by: Mark Rossetti <[email protected]>

* misc updates

Signed-off-by: Mark Rossetti <[email protected]>

* Update keps/sig-windows/1981-windows-privileged-container-support/README.md

Co-authored-by: Brandon Smith <[email protected]>

* Update keps/sig-windows/1981-windows-privileged-container-support/README.md

Co-authored-by: Brandon Smith <[email protected]>

* Update keps/sig-windows/1981-windows-privileged-container-support/README.md

Co-authored-by: Brandon Smith <[email protected]>

* Apply suggestions from code review

s/hostProcess/`HostProcess`

Co-authored-by: Danny Canter <[email protected]>
Co-authored-by: Brandon Smith <[email protected]>

* update keps/prod-readiness/sig-windows/1981.yaml

* Addressing some TODOs

* clarify CONTAINER_SANDBOX_MOUNT_POINT usage

* Apply suggestions from code review

Co-authored-by: Danny Canter <[email protected]>

* cmd.exe and powershell env var behaviors

* s/privileged/hostProcess

* storage related feedback / updates

* Add test criteria to validate different path syntax for container command / args / workingdir

* do not update client libraries until file system investigations conclude

Co-authored-by: Brandon Smith <[email protected]>
Co-authored-by: Danny Canter <[email protected]>

Author: 3 people

keps/prod-readiness/sig-windows/1981.yaml

@@ -1,3 +1,5 @@
 kep-number: 1981
 alpha:
-  approver: "@deads2k"
+  approver: "@deads2k"
+beta:
+  approver: "@deads2k"