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Docker is becoming quite popular. I've used it as an end-user just 3 times, and it never worked as expected. But assuming it does work, can you please list some actual benefits? And contrast them with install scripts, for example (considering the overhead of the VM and the issues in VM-host communication).
There are two use-cases:
- software that gets distributed to end-users for deployment
- internal software that gets deployed on your own (or cloud) infrastructure.
Let's look at the 2nd case, which is more dominant. Why would I, as a developer, package my software with docker, if I can provide install scripts that do all of that, and thus have scriptable deployment without any extra overhead or learning curve? Or is docker mostly useful for the 1st usecase above?