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I ditched Docker for Podman

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Re: I ditched Docker for Podman

#461

Post by rsyring »

gucci-on-fleek wrote: post #453
rsyring wrote: post #236

Earlier quoted context omitted.

Additionally, there aren't even any trusted repos out there building/publishing a .deb for it. The ones that I could find when I searched last were all outdated or indicated they were not going to keep moving forward. I could get over this. But, IMO, it lends itself to asking the "why" question. Why wouldn't Podman make installing it easier? And the only thing that makes sense to me is that RedHat doesn't want their…

They publish statically-linked binaries on GitHub [0], so to install it, you just need to download and unpack a single file. But you don't get any automatic updates like you would if they provided an apt repository. [0]: https://github.com/containers/podman/releases

Wow! I can't believe I missed that. Thanks.

Re: I ditched Docker for Podman

#462

Post by bsder »

nunez wrote: post #194
xrd wrote: post #14

I love podman, and, like others have said here, it does not always work with every container. I often try to run something using podman, then find strange errors, then switch back to docker. Typically this is with some large container, like gitlab, which probably relies on the entirety of the history of docker and its quirks. When I build something myself, most of the time I can get it working under podman. This situ…

I presume that the bulk of your issues are with container images that start their PID 1s as root. Podman is rootless by default, so this causes problems. What you can do if you don't want to use Docker and don't want to maintain these images yourself is have two Podman machines running: one in rootful mode and another in rootless mode. You can, then, use the `--connection` global flag to specify the machine you want…

Is there a blog post on this somewhere? I'd really love to read more about it beyond just the official documentation.

Re: I ditched Docker for Podman

#463

Post by gucci-on-fleek »

condenser wrote: post #232

I'm interested in using podman for my homeserver because of the deamonless and rootlessnes nature, but I haven't found a convenient replacement for docker compose. On my dev machine I do `docker compose up -d --build` in the directory of the Dockerfile, and it builds, uploads, and restarts the service on the server. In the podman world you're supposed to use Quadlets, which can be rsynced to the server, but I haven't…

podman-compose [0] is a mostly drop-in replacement for local usage, but I have no idea if it works remotely. "podman image scp" [1] looks like it could be helpful though.

[0]: https://github.com/containers/podman-compose

[1]: https://docs.podman.io/en/latest/markdown/podman-image-scp.1...

Re: I ditched Docker for Podman

#465

Post by throwaway0236 »

pmontra wrote: post #154
nickjj wrote: post #46

Earlier quoted context omitted.

> On the plus side, any company I work for doesn't have to worry about licences. Win win! Was this a deal breaker for any company? I ask because the Docker Desktop paid license requirement is quite reasonable. If you have less than 250 employees and make less than $10 million in annual revenue it's free. If you have a dev team of 10 people and are extremely profitable to where you need licenses you'd end up paying $9…

I think that I never saw somebody using Docker Desktop. I saw running containers with the command line everywhere, but I maybe I did not notice. No licenses for the command line tools, right?

I sometimes use Docker Desktop on my Mac to view logs. It's more convenient.

Re: I ditched Docker for Podman

#466

Post by rcv »

sroerick wrote: post #427
ttul wrote: post #415

Back in 2001/2002, I was charged with building a WiFi hotspot box. I was a fan of OpenBSD and wanted to slim down our deployment, which was running on Python, to avoid having to copy a ton of unnecessary files to the destination systems. I also wanted to avoid dependency-hell. Naturally, I turned to `chroot` and the jails concept. My deployment code worked by running the software outside of the jail environment and m…

The best CI/CD pipeline I ever used was my first freelance deployment using Django. I didn't have a clue what I was doing and had to phone a friend. We set up a git post receive hook which built static files and restarted httpd on a git receive. Deployment was just 'git push live master'. While I've used Docker a lot since then, that remains the single easiest deployment I've ever had. I genuinely don't understand wh…

> I genuinely don't understand what docker brings to the table. I mean, I get the value prop. But it's really not that hard to set up http on vanilla Ubuntu (or God forbid, OpenBSD) and not really have issues.

Sounds great if you're only running a single web server or whatever. My team builds a fairly complex system that's comprised of ~45 unique services. Those services are managed by different teams with slightly different language/library/etc needs and preferences. Before we containerized everything it was a nightmare keeping everything in sync and making sure different teams didn't step on each others dependencies. Some languages have good tooling to help here (e.g. Python virtual environments) but it's not so great if two services require a different version of Boost.

With Docker, each team is just responsible for making sure their own containers build and run. Use whatever you need to get your job done. Our containers get built in CI, so there is basically a zero percent chance I'll come in in the morning and not be able to run the latest head of develop because someone else's dev machine is slightly different from mine. And if it runs on my machine, I have very good confidence it will run on production.

Re: I ditched Docker for Podman

#467

Post by IanCal »

sroerick wrote: post #427
ttul wrote: post #415

Back in 2001/2002, I was charged with building a WiFi hotspot box. I was a fan of OpenBSD and wanted to slim down our deployment, which was running on Python, to avoid having to copy a ton of unnecessary files to the destination systems. I also wanted to avoid dependency-hell. Naturally, I turned to `chroot` and the jails concept. My deployment code worked by running the software outside of the jail environment and m…

The best CI/CD pipeline I ever used was my first freelance deployment using Django. I didn't have a clue what I was doing and had to phone a friend. We set up a git post receive hook which built static files and restarted httpd on a git receive. Deployment was just 'git push live master'. While I've used Docker a lot since then, that remains the single easiest deployment I've ever had. I genuinely don't understand wh…

Managing and running some containers is really easy though. And running daemons? Don’t we all have loads of things running all the time?

I find it easier to have the same interface for everything, where I can easily swap around ports.

Re: I ditched Docker for Podman

#468

Post by MorehouseJ09 »

We were using podman at our company, and it was great for a while but we recently migrated to orb.

The UX with orb is just much easier and the small gotchas between docker/podman started to add up. Especially with buildkit issues we had run into and things like using a remote buildkit instance (which we now use), was not supported well enough.

Re: I ditched Docker for Podman

#469

Post by jamwil »

jselysianeagle wrote: post #458
janjongboom wrote: post #445

Earlier quoted context omitted.

This false sense of reproducability is why I funded https://docs.stablebuild.com/ some years ago. It lets you pin stuff in dockerfiles that are normally unpinnable like OS package repos, docker hub tags and random files on the internet. So you can go back to a project a year from now and actually get the same container back again.

Isn't this problem usually solved by building an actual image for your specific application, tagging that and pushing to some docker repo? At least that's how it's been at placec I've worked at that used docker. What am I missing?

Perhaps more focused on docker-based development workflows than final deployment.

Re: I ditched Docker for Podman

#470

Post by ac130kz »

carwyn wrote: post #407
ac130kz wrote: post #381

Earlier quoted context omitted.

It's works great until you need that one option from Docker Compose that is missing in Podman Compose (which is written in Python for whatever reason, yeah...).

You can use the real compose (Go) with Podman now. The Python clone is not your only option.

Well, is this Podman's "service mode" also fully compatible with Docker Compose file functionality though?
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