staging -> prod

[tjcrone]

Ready to bring prod up to staging.

[tjcrone]

@yuvipanda, at the Pangeo meeting we discussed potential ways of automatically keeping prod up to date with staging. Can you please refresh my memory regarding your thoughts on how to best do this? Is this something I can help with?

[yuvipanda]

@tjcrone a few ways to do it:

1. The mybinder.org way - have automated tests that we are confident in. This way, we deploy to staging, run tests, and automatically promote.
2. Have each PR spin up its own 'staging' cluster that is short lived to test in. Merges then just merge to prod. No general 'staging' branch
3. Have a bot that automatically makes a staging -> prod PR after each PR gets merged, and bugs the people who made the staging merges to merge it. You can also have it auto-revert staging PRs after a while if you wanna enforce it, but this is probably better handled with social norms than with a bot.

(2) is my ideal!