Add/update Kustomize configurations

Signed-off-by: John Harris <john.harris@konghq.com>

kustomize/base/flagger/deployment.yaml

@@ -53,5 +53,4 @@ spec:
             memory: "32Mi"
             cpu: "10m"
         securityContext:
-          readOnlyRootFilesystem: true
           runAsUser: 10001

kustomize/base/flagger/rbac.yaml

@@ -177,6 +177,19 @@ rules:
       - update
       - patch
       - delete
+  - apiGroups:
+      - kuma.io
+    resources:
+      - trafficroutes
+      - trafficroutes/finalizers
+    verbs:
+      - get
+      - list
+      - watch
+      - create
+      - update
+      - patch
+      - delete
   - nonResourceURLs:
       - /version
     verbs:

kustomize/kuma/kustomization.yaml

@@ -0,0 +1,5 @@
+namespace: kuma-system
+bases:
+  - ../base/flagger/
+patchesStrategicMerge:
+  - patch.yaml

kustomize/kuma/patch.yaml

@@ -0,0 +1,14 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: flagger
+spec:
+  template:
+    spec:
+      containers:
+        - name: flagger
+          args:
+            - -log-level=info
+            - -include-label-prefix=app.kubernetes.io
+            - -mesh-provider=kuma
+            - -metrics-server=http://prometheus-server.kuma-metrics:80