replace kustomization.yaml.tpl with yamlencode

benefit is replacing inline strings in yaml with proper files
locally while still just deploying a single file to the remote
host.

patches/kured.yaml

@@ -0,0 +1,20 @@
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: kured
+  namespace: kube-system
+spec:
+  selector:
+    matchLabels:
+      name: kured
+  template:
+    metadata:
+      labels:
+        name: kured
+    spec:
+      serviceAccountName: kured
+      containers:
+        - name: kured
+          command:
+            - /usr/bin/kured
+            - --reboot-command=/usr/bin/systemctl reboot