Cumulocity client application

Mobile-friendly web application for displaying data from Cumulocity IoT platform.

Tasks

• npm start - starts the hot-reloaded dev server.
• npm build - builds the production version in "dist" folder.
• npm server - serves the production version from the "dist" folder.
• npm lint - lints the codebase for errors.

Setting up pm2

You can use pm2 to serve the production version in your server.

• npm i -g pm2 - installs pm2 globally.
• pm2 install pm2-logrotate - installs pm2 logrotate.
• pm2 set pm2-logrotate:max_size 10M - configure logrotate max size.
• pm2 set pm2-logrotate:retain 7 - configure logrotate retention.
• pm2 set pm2-logrotate:interval_unit DD - configure logrotate interval.
• pm2 start scripts/server.js --name iot --interpreter ./node_modules/.bin/babel-node -- 8080 - start the server on port 8080.
• pm2 save - save the config to persist restarts etc.

PM2 helpful commands

• pm2 list
• pm2 show server
• pm2 monit
• pm2 logs
• pm2 logs --out --lines 20 --timestamp
• pm2 stop server
• pm2 restart server
• pm2 delete server

Setup haproxy

• yum install -y haproxy
• vi /etc/haproxy/haproxy.cfg

...other settings...
#---------------------------------------------------------------------
# main frontend which proxys to the backends
#---------------------------------------------------------------------
frontend http-in
    bind *:80

    # define hosts
    acl host-iot hdr(host) -i iot.stagnationlab.com

    # figure out which one to use
    use_backend iot-backend if host-iot
    default_backend iot-backend

#---------------------------------------------------------------------
# backends
#---------------------------------------------------------------------
backend iot-backend
    server web-1 127.0.0.1:8080 check