Now proxy binary accepts `--auth-backend` CLI option, which determines
auth scheme and cluster routing method. Following backends are currently
implemented:
* legacy
old method, when username ends with `@zenith` it uses md5 auth dbname as
the cluster name; otherwise, it sends a login link and waits for the console
to call back
* console
new SCRAM-based console API; uses SNI info to select the destination
cluster
* postgres
uses postgres to select auth secrets of existing roles. Useful for local
testing
* link
sends login link for all usernames
It's a bit annoying that the .zenith state can show up in multiple
places, but since this is how the regression tests run if you launch
them from the git root directory, ignore this one too.
I found I had a few other .zenith directories hanging around in odd
places. I doubt we intended those directories to collect in multiple
locations, so only hide the one in the git root directory.
Use pytest to manage background services, paths, and environment
variables.
Benefits:
- Tests are a little easier to write.
- Cleanup is more reliable. You can CTRL-C a test and it will still shut
down gracefully. If you manually start a conflicting process, the test
fixtures will detect this and abort at startup.
- Don't need to worry about remembering '--test-threads=1'
- Output of sub-processes can be captured to files.
- Test fixtures configure everything to operate under a single test
output directory, making it easier to capture logs in CI.
- Detects all the necessary paths if run from the git root, but can also
run from arbitrary paths by setting environment variables.
There is also a deliberately broken test (test_broken.py) that can be
used to test whether the test fixtures properly clean up after
themselves. It won't run by default; the comment at the top explains how
to enable it.
