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
* Run 2to3 on tools directory
* Delete github_stats_tracking
* Re-run 2to3
* Remove unused script
* Remove unused script
* Remove unused line count utility
* Yapf. Isort
* Remove accidentally included file
* Migrate tools/distrib directory to python 3
* Remove unnecessary shebang
* Restore line_count directory
* Immediately convert subprocess.check_output output to string
* Take care of Python 2 shebangs
* Invoke scripts using a Python 3 interpreter
* Yapf. Isort
* Try installing Python 3 first
* See if we have any Python 3 versions installed
* Add Python 3.7 to Windows path
* Try adding a symlink
* Try to symlink differently
* Install six for Python 3
* Run run_interop_tests with python 3
* Try installing six in python3.7 explicitly
* Revert "Try installing six in python3.7 explicitly"
This reverts commit 2cf60d72f3.
* And debug some more
* Fix issue with jobset.py
* Add debug for CI failure
* Revert microbenchmark changes
Instead of directly sourcing the test driver provisioning script from the same branch, the script is downloaded (with curl) and sourced from the master branch.
This allows changes made to the test driver to be reflected in all future release branches. A separate PR will backport this change to existing release branches.
All cluster definitions are also moved to the install script, allowing any cluster changes to be done in one place in the master branch.