Better helm support for airgapped clusters with no access to public image registry

[arkodg]

Description:

Describe the desired behavior, what scenario it enables and how it
would be used.

Envoy Gateway uses 3 images

• docker.io/envoyproxy/gateway
• docker.io/envoyproxy/envoy
• docker.io/envoyproxy/ratelimit

Would be great if theres a simpler way to change the registry as a helm value without doing a helm template and edit

[optional Relevant Links:]

Any extra documentation required to understand the issue.

• Shutdown Manager(Envoy Gateway) feat: expose shutdownmanager image to EnvoyGageway API #3269 feat: add global image settings for all images in the EG chart #3389
• RateLimit feat: add global image settings for all images in the EG chart #3389
• Statsd Exporter Consider moving away from promStatsdExporterContainer #3369

[zirain]

aren't they share same registry?

[github-actions]

This issue has been automatically marked as stale because it has not had activity in the last 30 days.

[arkodg]

Let's track adding top level images configuration support for statsd exporter using this GH issue

[shawnh2]

Should we close this? Leave undo to be tracked via #3369

[arkodg]

this is the parent issue / epic, so we should ideally leave both open :)

[github-actions]

This issue has been automatically marked as stale because it has not had activity in the last 30 days.

[s0uky]

What about envoy proxy image? That should be configurable too.

[zirain]

you should be able do that with https://gateway.envoyproxy.io/docs/api/extension_types/#envoyproxykubernetesprovider right now.