set GOMAXPROCS and GOMEMLIMIT vars

if applied, set GOMAXPROCS and GOMEMLIMIT for all controllers based on container resources which leads to reduce throttling and better performance

Signed-off-by: Hadi Abbasi <hawwwdi@gmail.com>

manifests/install/kustomization.yaml

@@ -26,3 +26,23 @@ images:
     newName: ghcr.io/fluxcd/image-reflector-controller
   - name: fluxcd/image-automation-controller
     newName: ghcr.io/fluxcd/image-automation-controller
+patches:
+  - patch: |
+      - op: add
+        path: /spec/template/spec/containers/0/env/-
+        value:
+          name: GOMAXPROCS
+          valueFrom:
+            resourceFieldRef:
+              containerName: manager
+              resource: limits.cpu
+      - op: add
+        path: /spec/template/spec/containers/0/env/-
+        value:
+          name: GOMEMLIMIT
+          valueFrom:
+            resourceFieldRef:
+              containerName: manager
+              resource: limits.memory
+    target:
+      kind: Deployment