Updates MetalLB to install with kustomize instea of ks default.

infrastructure_setup/metallb/configuration/kustomization.yaml

@@ -0,0 +1,18 @@
+namespace: metallb-system
+resources:
+  - pool.yaml
+configMapGenerator:
+  - name: metallb-config
+    envs:
+      - config/config.env
+replacements:
+  - source:
+      kind: ConfigMap
+      name: metallb-config
+      fieldPath: data.CLUSTER_LOAD_BALANCER_RANGE
+    targets:
+      - select:
+          kind: IPAddressPool
+          name: first-pool
+        fieldPaths:
+          - spec.addresses.0