WIP [tugboat] Initial pass at placing a proxy that redirects to named URL

[q0rban]

This PR adds experimental support for human readable aliases that display in the URL bar when they are clicked from within the Tugboat UI.

[ElijahLynn]

We have to do something with the trusted hostname pattern as this is what it looks like when I click the preview button >

And is probably the reason the tests are failing too.

[ElijahLynn]

This is working functionally! Clicking either of these links redirects to the preview-name with the correct cms or web prefix now.

• https://pr4399-feojue32sjv0ltus10z7byw7iz13zxa5.ci.cms.va.gov
• https://cms-feojue32sjv0ltus10z7byw7iz13zxa5.ci.cms.va.gov
• https://web-feojue32sjv0ltus10z7byw7iz13zxa5.ci.cms.va.gov

I think there might be an issue with tests still because of the redirect though.

[ElijahLynn]

I just ran these test cases in Chrome for DEMO and CI:

1. ERR_NAME_NOT_RESOLVED: cms-very-long-hostname-part-121-2r1gqnh9pyzzjcwg9vvxa5ae3bpa3d4p.ci.cms.va.gov (label length = 65, hostname length = 79)
2. SUCCESS: cms-very-long-hostname-part-12-2r1gqnh9pyzzjcwg9vvxa5ae3bpa3d4p.ci.cms.va.gov (label length = 64, hostname length = 78)
3. ERR_NAME_NOT_RESOLVED: cms-very-long-hostname-part-123-stlrzate7j60gxrktefdoawtsn9xsmeg.demo.cms.va.gov (label length = 65, hostname length = 81)
4. SUCCESS: cms-very-long-hostname-part-12-stlrzate7j60gxrktefdoawtsn9xsmeg.demo.cms.va.gov (label length = 64, hostname length = 80)

[ElijahLynn]

I just ran these test cases in Chrome for DEMO and CI:

Same results on Firefox.

So it appears that the maximum hostname label length is 64 characters. The spec says 63 bytes so not sure where but I am off by one here.

The Tugboat TOKEN length is currently 33 CHARS, which leaves us 30 CHARS, minus the 4 CHAR prefix of web- or cms-, which is 26 CHAR minus one more for the off-by-one, which is 25 and what James has it trimmed to. So this confirms that the max CHARS we can stick in between is in fact 25. PREFIX + + TOKEN.

I think this is good to merge after I fix the conflicts and put a "why" comment on the trim length.

[ElijahLynn]

Given a Preview name of:

pr4399-james-tugboat-alias-generation-trim-length-testing-name

The resulting URL is https://cms-pr4399-james-tugboat-ali-feojue32sjv0ltus10z7byw7iz13zxa5.ci.cms.va.gov/.

Given:

Nebraska-Western Iowa health care

URL:

https://cms-nebraska-western-iowa-he-feojue32sjv0ltus10z7byw7iz13zxa5.ci.cms.va.gov/

[ElijahLynn]

Closing for now as we can't implement this just yet as the URLs for 60+ demo environments will change. Will re-open if/when time comes.