Apparently there's a difference between bash 3 and bash 4. OSX comes with bash 3 out-of-box, so for whoever wrote this logic it "worked on my machine".
- Enables pod log collection in all PSM interop jobs implemented in https://github.com/grpc/grpc/pull/30594.
- Associate test suite runs with their own log file, so it's displayed on "Target Log" tab
This Addresses the issue with skips not working in golang tests, ref b/235688697.
1. Unifies `TESTING_VERSION` detection in grpc_xds_k8s_install_test_driver.sh - new approach applicable to all languages.
2. Use `TESTING_VERSION` in all build files in `--testing_version` and when tagging docker images. This will be backported to all active test branches. Build Scripts in all other languages will be updated as well.
* [PSM interop] Expand the support of test config validation
* Comment the usage and source of testing_version
* Also include the comment for url-map tests
Xuan Wang