http default support

[1vn]

Closes #327

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Checklist:

• Run make test and make lint
• Test end to end manually (e.g. build/push all images, restart operator, and run cx refresh)
• Update examples
• Update documentation (add any new files to summary.md)
• Merge to master
• Cherry-pick into release branches if it's a bugfix
• Check gitbook that docs look good and links function properly
• Alert team if dev environment changed
• Delete the branch once it's merged

[deliahu]

We should tell you somewhere in the docs that you can use https (and that it will use a cert that we generated on install), can you add that? Omer should have an opinion on where to add it in the docs.