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Docker is intimately tied to Linux. It it only "cross platform" in that it can use a VM (Mac, WSL2) or flaky compat layers (FreeBSD). If software embraces Docke

Docker is intimately tied to Linux. It it only "cross platform" in that it can use a VM (Mac, WSL2) or flaky compat layers (FreeBSD). If software embraces Docker, it effectively excludes other OSes, like Windows, BSDs, Haiku, Fuschia, etc.

ed25519FUUU 6y ago
Even though it doesn’t run cross platform natively, it does run cross platform acceptably. I have no issue developing, building, and shipping images on my Mac that are deployed to production.
- chii 6y ago
  in that case, why is it that docker is considered superior when you could virtualize the windows api and run native windows apps in linux instead?
zachrose 6y ago
And even then trying to run Docker on Fedora will prompt you to turn off Security-Enhanced Linux features or use Podman instead. So it’s really like, what, 1/2 or 2/3 or Linux support
- cpuguy83 6y ago
  What? Why would it prompt this? Docker supports SELinux.
  - remexre 6y ago
    I don't know the specific issue, but RH's been trying to push Podman fairly hard...
    - dajonker 6y ago
      Fedora is using cgroups v2 by default since last year. This version of cgroups was not supported by docker until a couple of weeks ago. So as a Fedora user you could either use podman or modify your installation to use cgroups v1 instead.
      - zachrose 6y ago
        Thank you, I may have misspoke but this is what I was referring to.
e12e 6y ago
> Docker is intimately tied to Linux. Linux and windows: https://hub.docker.com/_/microsoft-windows https://hub.docker.com/_/microsoft-windows
- eptcyka 6y ago
  Have you used a windows only container? I've not seen one in the wild, but I might be terribly biased.
  - e12e 6y ago
    No, not yet. But we might go that way in the future for windows software on azure, much along the lines of: https://docs.microsoft.com/en-us/dotnet/architecture/modernize-with-azure-containers/modernize-existing-apps-to-cloud-optimized/deploy-existing-net-apps-as-windows-containers https://docs.microsoft.com/en-us/dotnet/architecture/moderni...
  - raesene9 6y ago
    Yep, I've also seen several corporates deploying Windows containers to production. As more "traditional" windows focused companies move to containerization/cloud, there's an increasing use of Windows containers, either as part of a Lift & Shift effort to migrate workloads, or because their developers are more comfortable with Windows and so they target that platform.
  - donmcronald 6y ago
    I tried to make one with VS build tools a couple years ago. It’s probably not too bad to do by now, but MS licensing is a massive drawback IMO. I’d rather focus on tech than reading license agreements that could be changed on a whim.

ed25519FUUU 6y ago

Even though it doesn’t run cross platform natively, it does run cross platform acceptably. I have no issue developing, building, and shipping images on my Mac that are deployed to production.

chii 6y ago
in that case, why is it that docker is considered superior when you could virtualize the windows api and run native windows apps in linux instead?

zachrose 6y ago

And even then trying to run Docker on Fedora will prompt you to turn off Security-Enhanced Linux features or use Podman instead. So it’s really like, what, 1/2 or 2/3 or Linux support

cpuguy83 6y ago
What? Why would it prompt this? Docker supports SELinux.
- remexre 6y ago
  I don't know the specific issue, but RH's been trying to push Podman fairly hard...
  - dajonker 6y ago
    Fedora is using cgroups v2 by default since last year. This version of cgroups was not supported by docker until a couple of weeks ago. So as a Fedora user you could either use podman or modify your installation to use cgroups v1 instead.
    - zachrose 6y ago
      Thank you, I may have misspoke but this is what I was referring to.

e12e 6y ago

> Docker is intimately tied to Linux. Linux and windows: https://hub.docker.com/_/microsoft-windows https://hub.docker.com/_/microsoft-windows

eptcyka 6y ago
Have you used a windows only container? I've not seen one in the wild, but I might be terribly biased.
- e12e 6y ago
  No, not yet. But we might go that way in the future for windows software on azure, much along the lines of: https://docs.microsoft.com/en-us/dotnet/architecture/modernize-with-azure-containers/modernize-existing-apps-to-cloud-optimized/deploy-existing-net-apps-as-windows-containers https://docs.microsoft.com/en-us/dotnet/architecture/moderni...
- raesene9 6y ago
  Yep, I've also seen several corporates deploying Windows containers to production. As more "traditional" windows focused companies move to containerization/cloud, there's an increasing use of Windows containers, either as part of a Lift & Shift effort to migrate workloads, or because their developers are more comfortable with Windows and so they target that platform.
- donmcronald 6y ago
  I tried to make one with VS build tools a couple years ago. It’s probably not too bad to do by now, but MS licensing is a massive drawback IMO. I’d rather focus on tech than reading license agreements that could be changed on a whim.