Allow postgres extensions

[thekalinga]

User should be able to install and enable extensions such as postgis within postgres instances that operator creates

[thekalinga]

Or change the docker image that operator uses to deploy postgres, such as using this instead of native docker image

[xenophenes]

You'll be able to find out more information about deploying a customized strategy here: https://github.com/CrunchyData/postgres-operator/blob/master/docs/design.asciidoc

Inside of the strategy templates, you can either modify these directly or create a new folder called "2" where these files are copied over and modified to fit your needs. https://github.com/CrunchyData/postgres-operator/tree/master/conf/postgres-operator/cluster/1
The Strategy section of the Design document will explain exactly how to modify each aspect of the template including providing custom Docker images.

The pgo configuration file starts out here and is (during the installation step) moved to your $HOME directory if you followed the default location provided in the instructions. For more information about modifying the configuration file, please take a look at the Configuration file here: https://github.com/CrunchyData/postgres-operator/blob/master/docs/config.asciidoc but you should see the section STRATEGY: 1 where you would simply change that variable to "2".

I hope that helps!

[jmccormick2001]

the base image is something you could change by editing the various templates used by the operator, we have for instance a postgres-gis container image that include postgis, if you were to replace the current image name in the configuration it would deploy that container image instead of the default postgres image.