feat(envoy): Add HelmRelease configuration for Envoy in release.yaml

Author: TheMeinerLP

infrastructure/clusters/feather-core/controllers/envoy/kustomization.yaml

@@ -2,3 +2,5 @@ apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 resources:
   - ../../../../base/controllers/envoy
+patches:
+  - path: release.yaml

infrastructure/clusters/feather-core/controllers/envoy/release.yaml

@@ -0,0 +1,16 @@
+apiVersion: helm.toolkit.fluxcd.io/v2
+kind: HelmRelease
+metadata:
+  name: envoy
+  namespace: envoy
+spec:
+  install:
+    remediation:
+      retries: 3
+  interval: 1m0s
+  timeout: 5m
+  values:
+    config:
+      envoyGateway:
+        extensionApis:
+          enableBackend: true