setup allowRequestsWithoutProxyProtocol

[ryanhristovski]

We support downstream proxy protocol #1328 but we don't currently support allow_requests_without_proxy_protocol .

This cannot be applied to upstream (afaik) so it's only being applied to downstream on ctp.

API Proposed:

    enableProxyProtocol: false # Deprecated, and proxyProtocol takes precedence
    proxyProtocol:
      allowRequestsWithoutProxyProtocol: true	

    enableProxyProtocol: false # Deprecated, and proxyProtocol takes precedence
    proxyProtocol: {}

Hoping to get this in for 1.5, please let me know if you'd like to see anything else

[arkodg]

prefer Optional bool similar to what we have in the JWT config
wdyt @envoyproxy/gateway-maintainers @envoyproxy/gateway-reviewers

[codecov]

Codecov Report

❌ Patch coverage is 97.22222% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 70.80%. Comparing base (af990e7) to head (f304eca).
⚠️ Report is 180 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/xds/translator/proxy_protocol.go	92.85%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6545      +/-   ##
==========================================
- Coverage   70.86%   70.80%   -0.06%     
==========================================
  Files         224      224              
  Lines       38769    38783      +14     
==========================================
- Hits        27472    27459      -13     
- Misses       9708     9728      +20     
- Partials     1589     1596       +7     

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[arkodg]

there is no Enabled field

[ryanhristovski]

@arkodg this PR is ready for review

[ryanhristovski]

/retest

[arkodg]

LGTM thanks