added appmetrics-dash instructions to node-red file

Author: janvda

node-red-test/Dockerfile

@@ -15,4 +15,5 @@ COPY ./settings.js /data/settings.js
 #COPY ./appmetrics.properties /usr/src/node-red/node_modules/appmetrics/appmetrics.properties
 
 # following command will add instrumentation to Node.js (= node-red)
-RUN sed -i 's?#!/usr/bin/env node?#!/usr/bin/env node;\n\n/* JVA: adding appmetrics instructions*/\nvar appmetrics = require("appmetrics");\nvar monitoring = appmetrics.monitor();\n?' /usr/src/node-red/node_modules/node-red/red.js
+# RUN sed -i 's?#!/usr/bin/env node?#!/usr/bin/env node;\n\n/* JVA: adding appmetrics instructions*/\nvar appmetrics = require("appmetrics");\nvar monitoring = appmetrics.monitor();\n?' /usr/src/node-red/node_modules/node-red/red.js
+RUN sed -i 's?#!/usr/bin/env node?#!/usr/bin/env node;\n\n/* JVA: adding appmetrics instructions*/\nvar dash = require('appmetrics-dash');\ndash.attach();\n?' /usr/src/node-red/node_modules/node-red/red.js