As an experiment to showcase the capabilities of Gluster Events APIs, Created a dashboard for Gluster Geo-replication.
Note: This is not ready for production use Yet!
Real-time notifications/UI change only works with Gluster 3.9 or above, but dashboard will work with older versions of gluster too.
Install the following Python dependencies using,
sudo pip install flask flask_sockets glustercli
Install elm and bower using,
sudo npm install -g bower elm
Update the serverName in App.elm and then generate static/app.js
using,(editing serverName should be automatic, this is code bug! will
fix later)
elm-package install
elm-make App.elm --output static/app.js
Install purecss for style using,
cd static
bower install
Start the main.py in any node of the Cluster. Dashboard can be
accessed using http://nodename:5000
Test and register this node as Events API subscriber by calling webhook-add
command. Read more about starting Events service here
gluster-eventsapi webhook-test http://nodename:5000/listen
If Webhook status is OK from all nodes, then add webhook using,
gluster-eventsapi webhook-add http://nodename:5000/listen
Thats all! If everything is okay, dashboard will show realtime Geo-replication status.
UI Changes when a Geo-rep session is stopped from anywhere in Cluster
UI Changes when a Geo-rep session goes to Faulty
- UI is very raw since it is created for demo purpose
- Frontend developed using Elm
- No event available for change in "Last Synced" column, So that column value will not match with realtime output from status command. Refresh the page to see the latest status.