[release/8.0] Make sure bind mount paths are relative to the app host directory #3494
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Backport of #3467 to release/8.0
/cc @davidfowl
Customer Impact
Today paths to bind mounts are resolved using CWD, which is different to projects, executables and pretty much everything else in the app model today. This change makes bind mounts resolve relative paths relative to the app host directory.
Testing
Added unit tests and did manual testing.
Risk
Low, we were already resolving the relative path to
Regression?
No.
Microsoft Reviewers: Open in CodeFlow