WTF is a container?

Post by Can_Not » Fri, Oct 21, 2016, 5:35 PM UTC

groundhogday1 wrote: post #221

Azeralthefallen wrote: post #101

I remember going to AWS Reinvent last year and having some beers with a bunch of people who did devops. We started talking about tools, and they were utterly flabbergasted, that we had not embraced docker. They went on an on about how simple docker made HA, and handling fail overs/maintenance. More or less made it seem like it was the greatest thing since sliced bread. Me and a few coworkers decided to try and docker…

I'm confused about the need to have a web app that 'runs anywhere' when you know exactly 'where' it's going to run. When you spin up an instance, don't you get to decide what OS and services you're going to use? I could maybe see the advantage if you had no control over the environment that the app was going to be run in like you might have with a downloaded executable for example. However, if your product is just so…

Being able to leave your current hosting provider quickly is important, but not over engineering abstract hotswapping interfaces is pretty important, too.

Post by echlebek » Sat, Oct 22, 2016, 2:43 PM UTC

madmax96 wrote: post #190

Azeralthefallen wrote: post #101

I remember going to AWS Reinvent last year and having some beers with a bunch of people who did devops. We started talking about tools, and they were utterly flabbergasted, that we had not embraced docker. They went on an on about how simple docker made HA, and handling fail overs/maintenance. More or less made it seem like it was the greatest thing since sliced bread. Me and a few coworkers decided to try and docker…

Same tune here. What docker promises is truly amazing and is something that I think everyone wants. However, docker itself still has a lot of problems. In particular, docker's new builtin swarm (with 1.12) has tons of issues. I've experienced __so many__ problems coordinating container startups on a swarm cluster. From the documentation: > Swarm can build an image from a Dockerfile just like a single-host Docker inst…

Kubernetes has the concept of a pod, which is a group of containers that run on the same node. It does indeed solve that problem.

http://kubernetes.io/docs/user-guide/pods/

Re: WTF is a container?

Re: WTF is a container?