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The demise of Docker and the rise of Kubernetes

thehftguy.com

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Re: The demise of Docker and the rise of Kubernetes

#31

Post by zer0tonin »

feketegy wrote: post #19
siquick wrote: post #15

The real world is still very much using Docker. Infact a few companies I've interviewed with this year aren't even using any kind of container setup and they're doing just fine and making money. This kind of article just adds to the Jonesing-for-shiny-things mentality that really doesn't do the engineering world any favours.

Not even docker, mostly AWS or dedicated servers or even VPS... No small site needs kubernetes/docker orchestration and that's fine.

Docker isn't just for orchestration. I've used it in a very small company and even use it for personal project just because it provides me with an easy to set up and portable development environment.

Re: The demise of Docker and the rise of Kubernetes

#32

Post by Multicomp »

KuiN wrote: post #26
protomikron wrote: post #2

And yet I still have to deploy my first Kubernetes setup and have used Docker multiple times ... Is there some kind of "Kubernetes-light" out there? So something like in-between running services like NGinx and Postgres on bare Linux machines and having this (I think complex) Kubernetes setup? It's important to say that I don't need any scaling capabilities (apart from maybe some load-balancing in case of a machine er…

Docker Swarm mode. Honestly it's great, I'm surprised I don't see it spoken about here more often. It's maybe 30 minutes to get started, much less of a brick-wall learning curve than Kubernetes. It does basics well and you can still do complex things like cluster storage etc. I'm using it to deploy a couple docker-compose stacks across a tiny two-region Droplet cluster and it's been excellent.

Anecdote : we had a much better experience in terms of reliability with k3s than Docker Swarm. The latter was slightly more complicated to admin and was much more prone to random lockups or needing all containers scaled down to nothing then back up.

K3s (run on same hardware) had a similar Api to full k8s which we had previous experience with and handled container lifecycles much more robustly.

Re: The demise of Docker and the rise of Kubernetes

#34

Post by tjpnz »

protomikron wrote: post #21
wyaeld wrote: post #10

Earlier quoted context omitted.

easiest way is just start experimenting with GKE on google cloud, and see if it has value to you. Don't bother trying to deploy and manage it before you've kicked the tires. Out of the box its quite good, depending on what you are doing, once you have cert-manager issuing you free certs, linkerd managing a service mesh, and stackdriver giving you an entire ops stack, its a bit hard to go back

How big is the vendor-lockin though? Let's say I want to use both Hetzner Cloud and GCP instances - I am sure it's possible, but the question is how much of a hassle it is ...

Most of the issues I've faced (Ingress cough) have been solved by reading through the relevant pages in the Kubernetes documentation. A lot of the docs/tutorials provided by GCP link back there.

Re: The demise of Docker and the rise of Kubernetes

#35

Post by tazjin »

sandGorgon wrote: post #24

Docker has not built support for cgroups v2 - which has been available in linux for 3 years. https://github.com/opencontainers/runc/issues/654 in order to force this issue, Fedora has made cgroups v2 as default and mandatory in the new upcoming Fedora 31 causing docker to fail to run. https://github.com/docker/for-linux/issues/665 Podman (and other docker equivalents) have supported cgroups v2 for years. I suspect th…

GKE already provides containerd for new deployments.

Re: The demise of Docker and the rise of Kubernetes

#37

Post by skywhopper »

This article just sort of meanders without going anywhere or providing any insight. Certainly no new insight. Docker the company didn’t manage to solve the right problems in time. K8s hype is through the roof.

But the irony is that the Docker infrastructure is a critical dependency for the vast majority of K8s users. And if it falls apart, a lot of stuff is going to break. I hope someone has some contingency plans for Docker Hub going away.

Re: The demise of Docker and the rise of Kubernetes

#38

Post by pjmlp »

YesSureThing wrote: post #30
pjmlp wrote: post #23

Me not using any of them, still doing old style on-premises deployments, VM based. I bet in about 5 years time we will be reading a similar article about Kubernetes.

Already happening: just use serverless!

I guess you mean CGI.

Re: The demise of Docker and the rise of Kubernetes

#39

Post by pastel »

This sounds a bit disingenuous - of course Kubernetes was going to be interesting to management in a way Docker isn't. It's all about scale.

And you couldn't have arrived at Kubernetes without Docker; it seems weird to present the situation like one is replacing the other.

Re: The demise of Docker and the rise of Kubernetes

#40

Post by scarface74 »

heipei wrote: post #12
protomikron wrote: post #2

And yet I still have to deploy my first Kubernetes setup and have used Docker multiple times ... Is there some kind of "Kubernetes-light" out there? So something like in-between running services like NGinx and Postgres on bare Linux machines and having this (I think complex) Kubernetes setup? It's important to say that I don't need any scaling capabilities (apart from maybe some load-balancing in case of a machine er…

I would give Nomad a try. After reading pages on pages of Kubernetes setup and trying the many half-working setup tools de-jour, setting up Nomad was a breeze and keeping it running over many months took almost no effort at all. URL: https://www.nomadproject.io

I agree with this 100%. Nomad can orchestrate anything. Docker containers, executables, jar filed etc.

Nomad+Consul is the definition of easy.

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