Docker was born for the cloud. It is the easiest way to run different software in a tiny box, installing it in a rapid way and with a nice way to wipe it in a snap. But when docker shines are the little docker compose files, which realize the Infrastructure as Code, a configuration file which declare in an easy and simple way how services are connected.

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K8s is a very complex beast. But it give you a very good set of security defaults, and it is also a very well done implementation of a microservice application.

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In this second article, I suggest to explore further two simple helm chart for getting a bit more inside K8s.

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When you run pihole in a docker container, it could be difficult to build images on the same docker daemon, because docker-compose cannot pass DNS request to another container during build, and normal dns resolution fixes won’t work.

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I am always amused on how complex K8s/Docker Swarm are, and how easy “plain” docker is.

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