Add NewRelic system monitor DaemonSet example

Adds an example using DaemonSets to distribute the NewRelic worker onto all nodes in a k8s cluster.

Signed-off-by: Christian Stewart <christian@paral.in>

examples/newrelic/config-to-secret.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+# Copyright 2014 The Kubernetes Authors All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Encodes the environment variables into a Kubernetes secret.
+
+BASE64_ENC=$(cat nrconfig.env | base64 --wrap=0)
+sed -e "s#{{config_data}}#${BASE64_ENC}#g" ./newrelic-config-template.yaml > newrelic-config.yaml