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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

#21

Post by protomikron »

wyaeld wrote: post #10
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…

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 ...

Re: The demise of Docker and the rise of Kubernetes

#22

Post by swish_bob »

omgwtfbbqhihihi wrote: post #6
supermatt wrote: post #3

What are you using to build your images for kubernetes?

a docker image

However at work I am explicitly disallowed to run Docker locally, and instead I'm expected to build my images directly in my dev OpenShift environment, yes, from a Dockerfile, but no docker-build for us ...

Re: The demise of Docker and the rise of Kubernetes

#24

Post by sandGorgon »

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 that k8s will move away from docker to recommending one of the alternatives pretty soon.

Re: The demise of Docker and the rise of Kubernetes

#25

Post by speg »

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…

https://kubernetes.io/docs/setup/learning-environment/miniku...

Note: I’ve not yet tried it, but when we switch this was one of the things I was going to try first.

Re: The demise of Docker and the rise of Kubernetes

#26

Post by KuiN »

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.

Re: The demise of Docker and the rise of Kubernetes

#27

Post by [deleted] »

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.

[deleted]

Re: The demise of Docker and the rise of Kubernetes

#28

Post by metalrufflez »

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.

Pretty much

I worked for an e-commerce, leader of their market, that used no Containers for the past 3 years.

CI produced agnostic packages, which were deployed with Ansible in any environment and auto-scalable using Golden AMIs, EBS Snapshots and AWS ASG. Almost the same concept, but way less complex.

We contemplated moving to ECS/EKS to stay "current" and to make test/development environments easier to create, but in the end, with a small team, it would add an unnecessary burden and "re-invent" the wheel on something that was working fine for the time being.

Re: The demise of Docker and the rise of Kubernetes

#29

Post by [deleted] »

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.

[deleted]
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