a project by ldragon
Project Description
I recently used melange and apko to build a from scratch image. The result was a set of auditable and easy to use container and apk repository. The toolkit reduces the work need to make from scratch images with minimal work on the actual docker container(which can be quite painful if you've tried making a from scratch image on your own).
The end goal would be to produce 2 utilities. 1. A utility that can build rpms from yaml thus simplifying the rpm building process. This would not aim to replace the entire rpm spec but rather be a subset of functionality and will not include macros for now. The counterpart to this utility would another utility to produce a container image including a minimal set of dependencies from the opensuse repos.
As for the language used for the project, I believe rust will be a good choice, it provides enough flexibility along with a large collection of utilities we can use for this including but not limited to, rpm, oci-spec-rs along with compile time checks to speed up the development process
Goals for this Hackweek
The goals for this hackweek for the rpm utility are the following: 1. produce a signing keypair for packages 2. run a set of commands to produce a binary/lib that can be copied to a directory that will be converted to a rpm 3. output a rpm 4. make a rpm repository that can be used by the container utility
The goals for the container utility are the following: 1. build a container from a repository 2. output the container as a tarball 3. publish the container to a repo
Resources
This project is part of:
Hack Week 23
Activity
Comments
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about 2 years 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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about 2 years 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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Description
Perl projects now live in git: https://src.opensuse.org/perl
It would be useful to have an easy way to check which version of which perl module is in devel:languages:perl. Also we have meta overrides and patches for various modules, and it would be good to have them at a central place, so it is easier to lookup, and we can share with other vendors.
I did some initial data dump here a while ago: https://github.com/perlpunk/cpan-meta
But I never had the time to automate this.
I can also use the data to check if there are necessary updates (currently it uses data from download.opensuse.org, so there is some delay and it depends on building).
Goals
- Have a script that updates a central repository (e.g.
https://src.opensuse.org/perl/_metadata) with metadata by looking at https://src.opensuse.org/perl/_ObsPrj (check if there are any changes from the last run) - Create a HTML page with the list of packages (use Javascript and some table library to make it easily searchable)
Resources
Results
Day 1
- First part of the code which retrieves data from https://src.opensuse.org/perl/_ObsPrj with submodules and creates a YAML and a JSON file.
- Repo: https://github.com/perlpunk/opensuse-perl-meta
- Also a first version of the HTML is live: https://perlpunk.github.io/opensuse-perl-meta/
Day 2
- HTML Page has now links to src.opensuse.org and the date of the last update, plus a short info at the top
- Code is now 100% covered by tests: https://app.codecov.io/gh/perlpunk/opensuse-perl-meta
- I used the modern perl
classfeature, which makes perl classes even nicer and shorter. See example - Tests
- I tried out the mocking feature of the modern Test2::V0 library which provides call tracking. See example
- I tried out comparing data structures with the new Test2::V0 library. It let's you compare parts of the structure with the
likefunction, which only compares the date that is mentioned in the expected data. example
Day 3
- Added various things to the table
- Dependencies column
- Show popup with info for cpanspec, patches and dependencies
- Added last date / commit to the data export.
Plan: With the added date / commit we can now daily check _ObsPrj for changes and only fetch the data for changed packages.
Day 4
Switch software-o-o to store repomd in a database by hennevogel
Description
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https://software.opensuse.org/
This app has been around forever (August 2007) and it's architecture is a bit brittle. It acts as a frontend to the OBS distributions and published binary search APIs, calculates and caches a lot of stuff in memory and needs code changes nearly every openSUSE release to keep up.
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Goals
I want to change the app to cache repomod data in a (postgres) database structure
- Distributions have many Repositories
- Repositories have many Packages
- Packages have many Patches
The UI workflows will be as following
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- As an admin I sync all repositories repomd files into to the database
- As a user I browse a Distribution by category
- As a user I search for Package of a Distribution in it's Repositories
- As a user I extend the search to Package build on OBS for this Distribution
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- Easier base to add features to this page. Like comments, ratings, openSUSE specific screenshots etc.
- Separating the Distribution package search from searching through OBS will hopefully make more clear for newbies that enabling extra repositories is kind of dangerous.
And one con:
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TODO
Introduce a PG database- Add clockworkd as scheduler and delayed_job as ActiveJob backend
- Introduce ActiveStorage
- Build initial data model
- Introduce repomd to database sync
- Adapt repomd sync to Leap 16.0 repomod layout changes (single arch, no update repo)
Make repomd sync idempotent
- Introduce database search
- Setup foreman to run
rails sandrake jobs:workoff - Adapt UI
- Build Category Browsing
- Build Admin Distribution CRUD interface
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Ways in which ZFS is better than BTRFS
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Completed goals
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