Architecture

The Kuloo infrastructure runs on Google Cloud Kubernetes:

Features of architecture:

• Blue / Green deployments - allows for quick deployment transitions and rollbacks. 
• Docker image - generated locally by bash script file, uploaded to Google container storage and then script updates yaml deployment files and then applies the changes using kubectl.

Custom Load Balancer:

• Failover to alternate server without loss of Websocket connection.
• Blue/Green server connection by user or channel.
• Immediate blue / green transitions without any change to config files. Automatic movement of clients to appropriate servers.

Software Design

JNX Custom Javascript Framework

• Panel layout
• Model View Controllers
• Dynamic Forms

Redis Pub / Sub 

This is the backbone that allows the cluster of servers to work together. Among other things, it contains:

• User sessions
• Realtime analytics counts
• Load balancer traffic monitoring
• Temporary web site edits

Through the use of the publish / subscribe features of redis the following functionality is enabled:

• User session hand off from server to server.
• Real time updates to all screen objects: articles, views, likes, etc.
• VueJS object updates via Websocket Streams.

Chrome Extension 

This is an extension that can be used by all users of the Kuloo app. It provides the following functionality:

• Displays Kuloo icon in browser extensions bar.
• Displays the number of unread articles that are in the user's inbox (updated in realtime).
• Indicates to channel owners if any articles need approval.
• Can be clicked to save current page as a new article in the user's channel. Allows selection of folders and the addition of an initial comment.