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  11 months ago by ldragon | Reply

  @tschmitz and I are working on this together rpmo rpmo is what our tool to produce rpms from yamls is called. As of writing we are able to produce a build env for rpms and download the source(s). What is left is running a pipeline to build everything and finally producing a rpm rpm2container rpm2container should produce a minimal rootfs and turn it into a container using rpms. Currently it is able to produce a rootfs. Todo is generating a config.json to create a bundle to produce a tar ball which can be loaded by podman and executed.

  Under the hood both projects use the tumbleweed container via podman to avoid utilizing host tools and remain cross distro compatible. We did evaluate using bwrap but we needed to use the host for zypper using bind mounts and symlinks however the container already provides the environment we require to bootstrap a build env

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[@tschmitz](/users/tschmitz) and I are working on this together [**rpmo**](https://github.com/Lunarequest/rpmo) rpmo is what our tool to produce rpms from yamls is called. As of writing we are able to produce a build env for rpms and download the source(s). What is left is running a pipeline to build everything and finally producing a rpm [**rpm2container**](https://github.com/Lunarequest/rpm2container) rpm2container should produce a minimal rootfs and turn it into a container using rpms. Currently it is able to produce a rootfs. Todo is generating a [config.json](https://github.com/opencontainers/runtime-spec/blob/main/config.md) to create a [bundle](https://github.com/opencontainers/runtime-spec/blob/main/bundle.md) to produce a tar ball which can be loaded by podman and executed. Under the hood both projects use the tumbleweed container via podman to avoid utilizing host tools and remain cross distro compatible. We did evaluate using bwrap but we needed to use the host for zypper using bind mounts and symlinks however the container already provides the environment we require to bootstrap a build env
 
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@tschmitz and I are working on this together rpmo rpmo is what our tool to produce rpms from yamls is called. As of writing we are able to produce a build env for rpms and download the source(s). What is left is running a pipeline to build everything and finally producing a rpm rpm2container rpm2container should produce a minimal rootfs and turn it into a container using rpms. Currently it is able to produce a rootfs. Todo is generating a config.json to create a bundle to produce a tar ball which can be loaded by podman and executed.
Under the hood both projects use the tumbleweed container via podman to avoid utilizing host tools and remain cross distro compatible. We did evaluate using bwrap but we needed to use the host for zypper using bind mounts and symlinks however the container already provides the environment we require to bootstrap a build env
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  11 months ago by ldragon | Reply

  As of writing rpmo is able to produce rpms. in the future this should be extended to produce a repo file along side the rpm. rpm2container is also nearing the finish line

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As of writing rpmo is able to produce rpms. in the future this should be extended to produce a repo file along side the rpm. rpm2container is also nearing the finish line
 
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As of writing rpmo is able to produce rpms. in the future this should be extended to produce a repo file along side the rpm. rpm2container is also nearing the finish line
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  11 months ago by ldragon | Reply

  at last rpm2container can also produce containers. Leading to the end of this POC. for future folks picking this up, here's a list of things you will want to add to both projects.

  rpmo:

  • it should output a directory complete with a .repo file and other bits needed to make it a valid repo for zypper

  • support for sources other than archives(eg git or the current directory) and support for local source(eg patches)

  • auto dynamic linking resolution. rpmo can only generate a rpm with a set of predefined dependencies. it should be possible to do elf parsing and determine sonames the binary is linked to and report them.

  • signing. Currently rpmo outputs non-signed rpms and the build env explicitly disabled gpg checks both should be resolved

  • reproducibility. it does work in a hack way. should be made more reliable

  rpm2container:

  • don't skip gpg checks

  • sbom generation

  • pushing image to a remote

  • more on the fly generation of json used in the container.

  along with these both should be made to be arch independent. many vars are hardcoded to the compiled arch. this should be changed and both should support building for non-native arches. Overall as a proof of concept I'm proud of how far in a week I managed to come, and how much i got working

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at last rpm2container can also produce containers. Leading to the end of this POC. for future folks picking this up, here's a list of things you will want to add to both projects. rpmo: - it should output a directory complete with a .repo file and other bits needed to make it a valid repo for zypper - support for sources other than archives(eg git or the current directory) and support for local source(eg patches) - auto dynamic linking resolution. rpmo can only generate a rpm with a set of predefined dependencies. it should be possible to do elf parsing and determine sonames the binary is linked to and report them. - signing. Currently rpmo outputs non-signed rpms and the build env explicitly disabled gpg checks both should be resolved - reproducibility. it does work in a hack way. should be made more reliable rpm2container: - don't skip gpg checks - sbom generation - pushing image to a remote - more on the fly generation of json used in the container. along with these both should be made to be arch independent. many vars are hardcoded to the compiled arch. this should be changed and both should support building for non-native arches. Overall as a proof of concept I'm proud of how far in a week I managed to come, and how much i got working
 
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Reply to ldragon
at last rpm2container can also produce containers. Leading to the end of this POC. for future folks picking this up, here's a list of things you will want to add to both projects.
rpmo:
• it should output a directory complete with a .repo file and other bits needed to make it a valid repo for zypper

• support for sources other than archives(eg git or the current directory) and support for local source(eg patches)

• auto dynamic linking resolution. rpmo can only generate a rpm with a set of predefined dependencies. it should be possible to do elf parsing and determine sonames the binary is linked to and report them.

• signing. Currently rpmo outputs non-signed rpms and the build env explicitly disabled gpg checks both should be resolved

• reproducibility. it does work in a hack way. should be made more reliable
rpm2container:
• don't skip gpg checks

• sbom generation

• pushing image to a remote

• more on the fly generation of json used in the container.
along with these both should be made to be arch independent. many vars are hardcoded to the compiled arch. this should be changed and both should support building for non-native arches. Overall as a proof of concept I'm proud of how far in a week I managed to come, and how much i got working
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