Demo of kube-router: distributed load balancer, firewall and router for Kubernetes

by CloudnativeLabs 7 years ago

macOS ◆ xterm-256color ◆ zsh 6899 views

https://github.com/cloudnativelabs/kube-router

Kube-router is a distributed load balancer, firewall and router for Kubernetes. Kube-router can be configured to provide on each cluster node:

a IPVS/LVS based service proxy on each node for ClusterIP and NodePort service types, providing service discovery and load balancing
an ingress firewall for the pods running on the node as per the defined Kubernetes network policies using iptables
a BGP router to advertise and learn the routes to the pod IP’s for cross-node pod-to-pod connectivity

Please read the blog for further details on how network policies are implemented in Kube-router: https://cloudnativelabs.github.io/post/2017-05-1-kube-network-policies/ and detailed demo: https://asciinema.org/a/120312

Please read the blog for further details on how IPVS based solution is implemented in Kube-router: https://cloudnativelabs.github.io/post/2017-05-10-kube-network-service-proxy/ and detailed demo: https://asciinema.org/a/120735

For cross pod-to-pod networking please see blog: https://cloudnativelabs.github.io/post/2017-05-22-kube-pod-networking/ demo: https://asciinema.org/a/120885 demo: https://asciinema.org/a/121635

More by CloudnativeLabs

Kube-shell server side completion 01:26

by CloudnativeLabs 7 years ago

Kubernetes ECMP+BGP for external IP's and direct server return 11:57

by CloudnativeLabs 7 years ago

Kube-router: Using BGP for routable pod IP's and cluster IP's of Kubernetes 06:14

by CloudnativeLabs 7 years ago

Kube-router: Demo of Kubernetes network services proxy with Linux IPVS 06:08

by CloudnativeLabs 7 years ago

See all

You can download this recording in asciicast v1 format, as a .json file.

Download

Replay in terminal

You can replay the downloaded recording in your terminal using the asciinema play command:

asciinema play 118056.json

If you don't have asciinema CLI installed then see installation instructions.

Use with stand-alone player on your website

Download asciinema player from the releases page (you only need .js and .css file), then use it like this:

<!DOCTYPE html>
<html>
<head>
  <link rel="stylesheet" type="text/css" href="asciinema-player.css" />
</head>
<body>
  <div id="player"></div>
  <script src="asciinema-player.min.js"></script>
  <script>
    AsciinemaPlayer.create(
      '/assets/118056.json',
      document.getElementById('player'),
      { cols: 178, rows: 44 }
    );
  </script>
</body>
</html>

See asciinema player quick-start guide for full usage instructions.

While this site doesn't provide GIF conversion at the moment, you can still do it yourself with the help of asciinema GIF generator utility - agg.

Once you have it installed, generate a GIF with the following command:

agg https://asciinema.org/a/118056 demo.gif

Or, if you already downloaded the recording file:

agg demo.cast demo.gif

Check agg --help for all available options. You can change font family and size, select color theme, adjust speed and more.

See agg manual for full usage instructions.