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one of the most interesting things for me about learning Docker is how it's improved my understanding of Linux. Ultimately Docker is just a set of linux featur
by raesene9 9y ago
one of the most interesting things for me about learning Docker is how it's improved my understanding of Linux.
Ultimately Docker is just a set of linux features bundled together in a nice package, so you can learn the underlying features (and their pros and cons) without having to actually use Docker, if you don't want to.
- subway 9y agoUltimately Docker is just a set of linux features bundled together in a nice package And that's where it gets kinda scary. In Zones/Jails, you started with as little shared as possible. A jail/zone is a fresh isolated environment. With Docker (and really all Linux container implementations) you have hack-and-slash isolation going on. It's a loosely coupled collection of namespacing mechanisms that relies on whatever spawns the container to coordinate all these mechanisms. By default, they all will happily put the process in a shared space.