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Fix GuestAgentConn vsock support #2118

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Jan 8, 2024
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@pendo324 pendo324 commented Jan 8, 2024

When how Lima connects to the guest agent was refactored in #1998, https://github.com/mdlayher/vsock was used to support vsock connections on Windows, but the library doesn't support Windows. The following error log is from a WSL Lima instance on v0.19.1:

{"error":"dial vsock host(2):994831394: vsock: not implemented on windows","level":"warning","msg":"connection to the guest agent was closed unexpectedlydial vsock host(2):994831394: vsock: not implemented on windows","time":"2024-01-08T19:19:49Z"}

The corresponding log from the library is here.

With this change to revert to using winio's Dial, guestagent communication works as it did previously.

More information on the how the HyperV/Windows vsock support works (can add this to the comment in wsl_driver too):

Also un-exported MagicVSOCKSuffix since it's now only used in the windows package.

Signed-off-by: Justin Alvarez <alvajus@amazon.com>
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Thanks

@AkihiroSuda AkihiroSuda added this to the v0.20.0 milestone Jan 8, 2024
@AkihiroSuda AkihiroSuda merged commit bd7442e into lima-vm:master Jan 8, 2024
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pendo324 added a commit to runfinch/finch-core that referenced this pull request Jan 9, 2024
…agent communication (#227)

Issue #, if available: e2e test failures on
runfinch/finch#649

*Description of changes:*
- Track Lima commit that fixes underlying issue with guestagent
communication, which ultimately breaks port forwarding (which is why the
e2e tests are failing). See lima-vm/lima#2118
for more details

*Testing done:*
- tested on a Windows machine by compiling Lima

- [x] I've reviewed the guidance in CONTRIBUTING.md


#### License Acceptance

By submitting this pull request, I confirm that my contribution is made
under the terms of the Apache 2.0 license.

Signed-off-by: Justin Alvarez <alvajus@amazon.com>
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