PolarDNS Modularity

Since version v1.1, PolarDNS has supported features defined as standalone, pluggable modules in the form of .toml files. You can look at the module repository here.

Internally, the modularity of PolarDNS is implemented in such a way that, when you start PolarDNS, it first creates a copy of itself and incorporates all the modules’ code. This generates the polardns_real.py file. It then runs this newly created file, and that’s when the PolarDNS server actually begins operating.

This has specific implications for debugging the PolarDNS server, which we’ll cover later.

!!! Ensure you do NOT make changes directly to the polardns_real.py file, as your changes might be overwritten !!!

Now let’s see where we can add our code.

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