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Cluster and app management services in Docker Cloud are shutting down on May 21

docs.docker.com

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Re: Cluster and app management services in Docker Cloud are shutting down on May 21

#41

Post by donmcronald »

TheDong wrote: post #33
gingerlime wrote: post #27

Earlier quoted context omitted.

> What would happen if this was docker hub? Panic! Isn't docker hub relatively easy to replace, in comparison? Otherwise, is this a wakeup call perhaps?

docker hub is surprisingly difficult to replace because of how docker registries work. Traditional package managers have two distinct concepts: a repository and packages within those repositories. For example, if ubuntu took down their apt repo server, I could run my own with all the same packages and change a single sources.list entry and all my servers, ansible roles installing packages, etc, would operate the same…

Does it actually send the URL? I think it uses the URL to make the network request, but doesn’t actually send the URL to the registry. If it did, you could use an alternate registry as a pull through cache and have it go upstream for everything. AFAIK that’s not possible.

Re: Cluster and app management services in Docker Cloud are shutting down on May 21

#42

Post by andypanik »

kuschku wrote: post #39
cygned wrote: post #35

Earlier quoted context omitted.

The registry itself can be self-hosted easily, however everything on top (authentication, web UI, automation, ...) is surprisingly difficult. Plus technical challenges as pointed out by other commenters.

GitLab includes a full docker registry, with all that. Just run a custom GitLab instance, and you get all that for free. For my open source projects on git.kuschku.de I also have a gitlab container registry on k8r.eu, and it’s been amazing to work with.

Nexus also has a docker registry with all that.

Re: Cluster and app management services in Docker Cloud are shutting down on May 21

#43

Post by sz4kerto »

imiric wrote: post #30
gaius wrote: post #20

Earlier quoted context omitted.

Genuine question - what makes you think that Kubernetes has won? Well, "won" in quotes. I am not a k8s fanboy or anything, I simply observe that all the major cloud providers are offering managed k8s services that have superseded their own proprietary container-type offerings. For better or worse that's where the momentum is. If you wanted to containerize your stack right now, k8s then pick one of the big 3, seems li…

I've noticed the same trend, and as a fan of Docker Swarm, along with this news, I'm not happy about it. Compared to Kubernetes, Swarm is a breeze to setup, deploy and manage. The manifest files are the same Docker Compose files we're used to, just expanded to cover the new stack concepts. It has support for remote storage mounting, advanced networking configuration, various interesting volume and network plugins[0],…

We're going with Swarm exactly because of the reasons you've listed. The EE part is a bit flaky sometimes (I'm looking at you, UCP), but Swarm is brilliant.

Re: Cluster and app management services in Docker Cloud are shutting down on May 21

#44

Post by Axsuul »

zebra9978 wrote: post #31

We are extremely worried about the future of Docker Swarm as well. We love Swarm - but we are seeing most work out of the Docker team is to give a migration path to kubernetes. A huge number of docker swarm networking bugs are not being worked on. We will be happy if Docker talks about Swarm becoming a management UX for K8s - but we need visibility. These are production orchestration systems. The migration path is no…

I hope this isn't so either. Docker Swarm is so simple and works well for many use cases.

Re: Cluster and app management services in Docker Cloud are shutting down on May 21

#45

Post by zawerf »

cygned wrote: post #35
gingerlime wrote: post #27

Earlier quoted context omitted.

> What would happen if this was docker hub? Panic! Isn't docker hub relatively easy to replace, in comparison? Otherwise, is this a wakeup call perhaps?

The registry itself can be self-hosted easily, however everything on top (authentication, web UI, automation, ...) is surprisingly difficult. Plus technical challenges as pointed out by other commenters.

There's an on premise version of docker hub (Docker Trusted Registry I think?).

Re: Cluster and app management services in Docker Cloud are shutting down on May 21

#46

Post by Axsuul »

jsilence wrote: post #11
jopsen wrote: post #6

Earlier quoted context omitted.

It certainly makes me rethink if docker services should be relied on in production. Migrating off docker cloud will be a pain, but the service was already a pain to use, so maybe it's about time anyways. But imagine being given 2 months to migrate off docker hub for image storage. Panic would ensue :)

I understand that having to abandon ship sucks, but wasn't the whole point of containers that they can be migrated easily? heck, the whole concept got its name from that idea. So why the fuss? edit: typos

Because moving to another orchestration platform requires overhauling your CI/build system.

Re: Cluster and app management services in Docker Cloud are shutting down on May 21

#47

Post by sandGorgon »

sz4kerto wrote: post #43
imiric wrote: post #30

Earlier quoted context omitted.

I've noticed the same trend, and as a fan of Docker Swarm, along with this news, I'm not happy about it. Compared to Kubernetes, Swarm is a breeze to setup, deploy and manage. The manifest files are the same Docker Compose files we're used to, just expanded to cover the new stack concepts. It has support for remote storage mounting, advanced networking configuration, various interesting volume and network plugins[0],…

We're going with Swarm exactly because of the reasons you've listed. The EE part is a bit flaky sometimes (I'm looking at you, UCP), but Swarm is brilliant.

I agree - but I'm now very afraid. I'm beginning to wonder if its not better to just swallow the pain and just go k8s.

I would love it (and pay for it) if Swarm says that it is a opinionated distro (ingress/overlay) + management layer on top of k8s.

The silence is deafening and not nice.

Re: Cluster and app management services in Docker Cloud are shutting down on May 21

#48

Post by dullgiulio »

TheDong wrote: post #33
gingerlime wrote: post #27

Earlier quoted context omitted.

> What would happen if this was docker hub? Panic! Isn't docker hub relatively easy to replace, in comparison? Otherwise, is this a wakeup call perhaps?

docker hub is surprisingly difficult to replace because of how docker registries work. Traditional package managers have two distinct concepts: a repository and packages within those repositories. For example, if ubuntu took down their apt repo server, I could run my own with all the same packages and change a single sources.list entry and all my servers, ansible roles installing packages, etc, would operate the same…

But here we are talking about Docker Hub closing, which is way easier to solve. This is the registry that is used as default (for all non-local images without a URL identifier, like "alpine:latest").

All you need is an option to set the default registry. Probably it's already there, didn't google.

Re: Cluster and app management services in Docker Cloud are shutting down on May 21

#49

Post by jopsen »

gingerlime wrote: post #27
jopsen wrote: post #8

People, yours truly included, seem a bit concerned with the 2 months notice. To be fair docker cloud was never great and hopefully it doesn't have many big customers... But the precedence of shutting down a paid service with 2 months notice is not nice. What would happen if this was docker hub? Panic!

> What would happen if this was docker hub? Panic! Isn't docker hub relatively easy to replace, in comparison? Otherwise, is this a wakeup call perhaps?

References to docker hub is hardcoded into a LOT of code/config..

Re: Cluster and app management services in Docker Cloud are shutting down on May 21

#50

Post by curryhowardiso »

devmunchies wrote: post #37
jopsen wrote: post #8

People, yours truly included, seem a bit concerned with the 2 months notice. To be fair docker cloud was never great and hopefully it doesn't have many big customers... But the precedence of shutting down a paid service with 2 months notice is not nice. What would happen if this was docker hub? Panic!

I could see github adding a tab to repos as for a container registry. That would destroy docker hub imo.

That would be super cool, and I've noticed the branch protection features changing on GitHub, so perhaps they're thinking about this space too.
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