To be able to use Podman as a valid alternative to Docker, with no warnings
Actual behaviour
Currently, it is possible to successfully use Podman to build container images via setting this in build.sbt:
dockerExecCommand := List("podman")
However, you'll get the following warning:
[warn] [1] sbt-native-packager wasn't able to identify the docker version. Some features may not be enabled
[warn] sbt-native packager tries to parse the `docker version` output. This can fail if
[warn]
[warn] - the output has changed:
[warn] $ docker version --format '{{.Server.APIVersion}}'
[warn]
[warn] - no `docker` executable is available
[warn] $ which docker
[warn]
[warn] - you have not the required privileges to run `docker`
[warn]
[warn] You can display the parsed docker version in the sbt console with:
[warn]
[warn] sbt:your-project> show dockerApiVersion
[warn]
[warn] As a last resort you could hard code the docker version, but it's not recommended!!
[warn]
[warn] import com.typesafe.sbt.packager.docker.DockerApiVersion
[warn] dockerApiVersion := Some(DockerApiVersion(1, 40))
[warn]
As far as I could get, this is due the fact that the regex used to validate Docker Api version expects versions strings like major.minor, but Podman uses major.minor.patch version style. A possible fix would be to change the regex to acknowledge the difference, but that would render Docker version validations useless for Podman (e.g. to check for multistage or chown-flag capabilities).
So, I was wondering if the community would be interested in having a better support for Podman, that at least:
Makes it easy and idiomatic to configure Podman for building (changing dockerExecCommand variable seems a bit hackish)
Correctly validates Podman version and its related multistage / chown-flag capabilities (not sure if these validations are needed for Podman).
Information
What sbt-native-packager are you using: 1.9.16
What sbt version: 1.9.2
What is your build system: MacOS Ventura 13.2.1
What package are you building: Docker
What version has your build tool: using Podman 4.6.1
What is your target system (e.g. Ubuntu 16.04, CentOS 7): using a JRE 11 alpine image as base
Expected behaviour
To be able to use Podman as a valid alternative to Docker, with no warnings
Actual behaviour
Currently, it is possible to successfully use Podman to build container images via setting this in
build.sbt:However, you'll get the following warning:
As far as I could get, this is due the fact that the regex used to validate Docker Api version expects versions strings like
major.minor, but Podman usesmajor.minor.patchversion style. A possible fix would be to change the regex to acknowledge the difference, but that would render Docker version validations useless for Podman (e.g. to check for multistage or chown-flag capabilities).So, I was wondering if the community would be interested in having a better support for Podman, that at least:
dockerExecCommandvariable seems a bit hackish)Information