Understanding Docker – Network Namespaces
source link: https://zwischenzugs.com/2015/11/21/understanding-docker-network-namespaces/
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tl;dr
A video showing how to set up two namespaces to talk to each other based on this excellent tutorial.
Source available here.
What it does
To many developers, networking is a bit of a mystery; it’s the thing to blame when things go wrong.
I’ve been forced to learn about networking more as a result of getting into Docker, and as a result have taught myself some basics.
In this video, (based on this awesome set of tutorials) I take the viewer through the process of setting up network namespaces (a key aspect of Docker’s isolation technology), and use OpenVSwitch (a virtualised switching tool) to act as a bridge between the two networks in the so-called ‘root namespace’. All of this takes place within a VM.
Enjoy!
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