Re: [PLUG] q. about docker-engine overhead

[Anthony Martin <anthony.j.martin142@gmail.com>]

Docker running on a Linux system is very light for the most part. I haven't had any containers running on the server today and the 30 min load avg is 0.05 (and that's only from my laptop auto-uploading file changes to it). It is also only using half a gig of ram but that's including a bunch of monitoring agents and random nonsense I'm forced to put on the system.

To answer your question about services and running a DB on docker, the reason I have seen is it just makes maintaining and supporting the full application easier. The main thing I currently have running is a Django web app, a Postgres DB, RabbitMQ, and NGINX as the web proxy. With this setup I know anything that I change while working on my laptop is going to run exactly the same on my server.

Anthony Martin

Linux System Administrator

On Mon, May 21, 2018 at 1:43 PM, Ron Mansolino <rmsolino@gmail.com> wrote:

How much overhead will a (mostly gratuitous) install of docker put on a (mostly unused) VPS?

I have no overwhelming *need* to install it, other than testing it and putzing around so I can pad the skills section on my resume.

Should I crib together a PC at home to experiment on, and what sort of services lend themselves to containerization? (eg. the examples I've seen all demonstrate with MongoDB; why would you wrap a database in middleware?).

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