Enable gateway api alpha APIs

[eguzki]

What

Enable Gateway API alpha APIs for the development environment. It is mandatory for testing current alpha APIs like GRPCRoute API.

Verification steps

Istio operator

make local-setup

When finished, check the discovery controller has PILOT_ENABLE_ALPHA_GATEWAY_API env var set to true

kubectl get deployment istiod -n istio-system -o jsonpath='{.spec.template.spec.containers[?(@.name=="discovery")].env[?(@.name=="PILOT_ENABLE_ALPHA_GATEWAY_API")]}' | yq e -P

Should return

name: PILOT_ENABLE_ALPHA_GATEWAY_API
value: "true"

Sail operator

ISTIO_INSTALL_SAIL=true make local-setup

When finished, check the discovery controller has PILOT_ENABLE_ALPHA_GATEWAY_API env var set to true

kubectl get deployment istiod -n istio-system -o jsonpath='{.spec.template.spec.containers[?(@.name=="discovery")].env[?(@.name=="PILOT_ENABLE_ALPHA_GATEWAY_API")]}' | yq e -P

Should return

name: PILOT_ENABLE_ALPHA_GATEWAY_API
value: "true"

[codecov]

Codecov Report

Merging #424 (53171a3) into main (c831a70) will decrease coverage by 0.90%.
The diff coverage is n/a.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #424      +/-   ##
==========================================
- Coverage   66.18%   65.29%   -0.90%     
==========================================
  Files          38       38              
  Lines        3901     3901              
==========================================
- Hits         2582     2547      -35     
- Misses       1131     1158      +27     
- Partials      188      196       +8     

Flag	Coverage Δ
integration	69.52% <ø> (-1.73%)	⬇️
unit	60.69% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
api/v1beta1 (u)	∅ <ø> (∅)
pkg/common (u)	78.59% <ø> (ø)
pkg/istio (u)	37.11% <ø> (ø)
pkg/log (u)	31.81% <ø> (ø)
pkg/reconcilers (u)	33.44% <ø> (ø)
pkg/rlptools (u)	56.46% <ø> (ø)
controllers (i)	69.52% <ø> (-1.73%)	⬇️

see 5 files with indirect coverage changes