NET-6821 Disable Terminating Gateway Auto Host Header Rewrite

[sarahalsmiller]

Description

• Exposing configuration to allow users of the terminating gateway to turn off host header rewrites at the service level

Testing & Reproduction steps

• build local consul
• apply the following terminating gateway

Kind = "terminating-gateway"
Name = "test-gateway"
Services = [
 {
   Name = "default-behavior"
 },
 {
   Name = "default-behavior-1"
   DisableAutoHostRewrite = true
 }
]

Observe the generated XDS and note that the default behavior is to auto host rewrite, but not when DisableAutoHostRewrite is set to true.

Links

PR Checklist

• [ X ] updated test coverage
• external facing docs updated
• appropriate backport labels added
• not a security concern

[sarahalsmiller]

My logic here is that by making this a flag you have to set to true it won't change any existing behavior in existing terminating gateway setups.

[boruszak]

I reviewed the edits to terminating-gateway.mdx and left one suggestion.

Approving on behalf of consul-docs.

[david-yu]

@sarahalsmiller Will an accompanying PR to update CRDs also follow? Looking forward this PR being merged!

[sarahalsmiller]

@sarahalsmiller Will an accompanying PR to update CRDs also follow? Looking forward this PR being merged!

Yes it will. In my experience its just easier to wait until the original PR merges into core so you don't accidentally point the go.mod file at a commit that doesn't exist in main.

[missylbytes]

LGTM when all tests pass