csi: fix panic in serializing nil allocs in volume API #8735
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notnoop
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Aug 25, 2020
tgross
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Apr 15, 2022
The CSI HTTP API has to transform the CSI volume to redact secrets, remove the claims fields, and to consolidate the allocation stubs into a single slice of alloc stubs. This was done manually in #8590 but this is a large amount of code and has proven both very bug prone (see #8659, #8666, #8699, #8735, and #12150) and requires updating lots of code every time we add a field to volumes or plugins. In #10202 we introduce encoding improvements for the `Node` struct that allow a more minimal transformation. Apply this same approach to serializing `structs.CSIVolume` to API responses. Also, the original reasoning behind #8590 for plugins no longer holds because the counts are now denormalized within the state store, so we can simply remove this transformation entirely.
tgross
added a commit
that referenced
this pull request
Apr 15, 2022
The CSI HTTP API has to transform the CSI volume to redact secrets, remove the claims fields, and to consolidate the allocation stubs into a single slice of alloc stubs. This was done manually in #8590 but this is a large amount of code and has proven both very bug prone (see #8659, #8666, #8699, #8735, and #12150) and requires updating lots of code every time we add a field to volumes or plugins. In #10202 we introduce encoding improvements for the `Node` struct that allow a more minimal transformation. Apply this same approach to serializing `structs.CSIVolume` to API responses. Also, the original reasoning behind #8590 for plugins no longer holds because the counts are now denormalized within the state store, so we can simply remove this transformation entirely.
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Fixes #8730
I've also opened #8734 as what will probably be a post-1.0 effort to eliminate this particular source of bugs in the future.