Learn Go by Writing an Application
a record by jluo
Updated about 1 year ago. 1 hackers ♥️. 1 follower. Has no hacker: grab it!

Project Description

Go (or Golang) is an open-source programming language designed to build fast, reliable, and efficient software at scale. It is the language used to create Kubernetes, K3s, Rancher, and countless cloud-native applications. Let's learn Go by writing an application during the hack week!

Goal for this Hackweek

  • Understand the syntax and grammars of Go
  • Learn the advanced features of Go
  • Get familiar with Go’s standard libraries/packages
  • Write an application following this tutorial

Resources

There are tons of tutorials and articles on the internet, but not all of them are of high quality or up-to-date. If you know any article/book/tutorial that is good for a beginner, please do not hesitate to share them in the comments.

Here are some resources I will use to learn Go:

  • https://www.udemy.com/course/go-the-complete-developers-guide
  • https://github.com/quii/learn-go-with-tests
  • https://gobyexample.com

No Hackers yet

Join this project

Looking for hackers with the skills:

golang go learning language

This project is part of:

Hack Week 20

Activity

  • over 4 years ago: ph03nix liked this project.
  • over 4 years ago: jluo added keyword "learning" to this project.
  • over 4 years ago: jluo added keyword "language" to this project.
  • over 4 years ago: jluo added keyword "golang" to this project.
  • over 4 years ago: jluo added keyword "go" to this project.
  • over 4 years ago: jluo originated this project.


    • Comments

    • jluo
      over 4 years ago by jluo | Reply

      I tracked my progress at this Github repo: https://github.com/jiaqiluo/learn-go

    Similar Projects

    Q2Boot - A handy QEMU VM launcher by amanzini

    Description

    Q2Boot (Qemu Quick Boot) is a command-line tool that wraps QEMU to provide a streamlined experience for launching virtual machines. It automatically configures common settings like KVM acceleration, virtio drivers, and networking while allowing customization through both configuration files and command-line options.

    The project originally was a personal utility in D, now recently rewritten in idiomatic Go. It lives at repository https://github.com/ilmanzo/q2boot

    Goals

    Improve the project, testing with different scenarios , address issues and propose new features. It will benefit of some basic integration testing by providing small sample disk images.

    Updates

    • Dec 1, 2025 : refactor command line options, added structured logging. Released v0.0.2
    • Dec 2, 2025 : added external monitor via telnet option
    • Dec 4, 2025 : released v0.0.3 with architecture auto-detection
    • Dec 5, 2025 : filing new issues and general polishment. Designing E2E testing

    Resources

    Play with the userfaultfd(2) system call and download on demand using HTTP Range Requests with Golang by rbranco

    Description

    The userfaultfd(2) is a cool system call to handle page faults in user-space. This should allow me to list the contents of an ISO or similar archive without downloading the whole thing. The userfaultfd(2) part can also be done in theory with the PROT_NONE mprotect + SIGSEGV trick, for complete Unix portability, though reportedly being slower.

    Goals

    1. Create my own library for userfaultfd(2) in Golang.
    2. Create my own library for HTTP Range Requests.
    3. Complete portability with Unix.
    4. Benchmarks.
    5. Contribute some tests to LTP.

    Resources

    1. https://docs.kernel.org/admin-guide/mm/userfaultfd.html
    2. https://www.cons.org/cracauer/cracauer-userfaultfd.html

    SUSE Health Check Tools by roseswe

    SUSE HC Tools Overview

    A collection of tools written in Bash or Go 1.24++ to make life easier with handling of a bunch of tar.xz balls created by supportconfig.

    Background: For SUSE HC we receive a bunch of supportconfig tar balls to check them for misconfiguration, areas for improvement or future changes.

    Main focus on these HC are High Availability (pacemaker), SLES itself and SAP workloads, esp. around the SUSE best practices.

    Goals

    • Overall improvement of the tools
    • Adding new collectors
    • Add support for SLES16

    Resources

    csv2xls* example.sh go.mod listprodids.txt sumtext* trails.go README.md csv2xls.go exceltest.go go.sum m.sh* sumtext.go vercheck.py* config.ini csvfiles/ getrpm* listprodids* rpmdate.sh* sumxls* verdriver* credtest.go example.py getrpm.go listprodids.go sccfixer.sh* sumxls.go verdriver.go

    docollall.sh* extracthtml.go gethostnamectl* go.sum numastat.go cpuvul* extractcluster.go firmwarebug* gethostnamectl.go m.sh* numastattest.go cpuvul.go extracthtml* firmwarebug.go go.mod numastat* xtr_cib.sh*

    $ getrpm -r pacemaker >> Product ID: 2795 (SUSE Linux Enterprise Server for SAP Applications 15 SP7 x86_64), RPM Name: +--------------+----------------------------+--------+--------------+--------------------+ | Package Name | Version | Arch | Release | Repository | +--------------+----------------------------+--------+--------------+--------------------+ | pacemaker | 2.1.10+20250718.fdf796ebc8 | x86_64 | 150700.3.3.1 | sle-ha/15.7/x86_64 | | pacemaker | 2.1.9+20250410.471584e6a2 | x86_64 | 150700.1.9 | sle-ha/15.7/x86_64 | +--------------+----------------------------+--------+--------------+--------------------+ Total packages found: 2

    go-git: unlocking SHA256-based repository cloning ahead of git v3 by pgomes

    Description

    The go-git library implements the git internals in pure Go, so that any Go application can handle not only Git repositories, but also lower-level primitives (e.g. packfiles, idxfiles, etc) without needing to shell out to the git binary.

    The focus for this Hackweek is to fast track key improvements for the project ahead of the upstream release of Git V3, which may take place at some point next year.

    Goals

    Stretch goals

    Resources

    • https://github.com/go-git/go-git/
    • https://go-git.github.io/docs/

    Contribute to terraform-provider-libvirt by pinvernizzi

    Description

    The SUSE Manager (SUMA) teams' main tool for infrastructure automation, Sumaform, largely relies on terraform-provider-libvirt. That provider is also widely used by other teams, both inside and outside SUSE.

    It would be good to help the maintainers of this project and give back to the community around it, after all the amazing work that has been already done.

    If you're interested in any of infrastructure automation, Terraform, virtualization, tooling development, Go (...) it is also a good chance to learn a bit about them all by putting your hands on an interesting, real-use-case and complex project.

    Goals

    • Get more familiar with Terraform provider development and libvirt bindings in Go
    • Solve some issues and/or implement some features
    • Get in touch with the community around the project

    Resources

    Rewrite Distrobox in go (POC) by fabriziosestito

    Description

    Rewriting Distrobox in Go.

    Main benefits:

    • Easier to maintain and to test
    • Adapter pattern for different container backends (LXC, systemd-nspawn, etc.)

    Goals

    • Build a minimal starting point with core commands
    • Keep the CLI interface compatible: existing users shouldn't notice any difference
    • Use a clean Go architecture with adapters for different container backends
    • Keep dependencies minimal and binary size small
    • Benchmark against the original shell script

    Resources

    • Upstream project: https://github.com/89luca89/distrobox/
    • Distrobox site: https://distrobox.it/
    • ArchWiki: https://wiki.archlinux.org/title/Distrobox

    Add support for todo.sr.ht to git-bug by mcepl

    Description

    I am a big fan of distributed issue tracking and the best (and possibly) only credible such issue tracker is now git-bug. It has bridges to another centralized issue trackers, so user can download (and modify) issues on GitHub, GitLab, Launchpad, Jira). I am also a fan of SourceHut, which has its own issue tracker, so I would like it bridge the two. Alas, I don’t know much about Go programming language (which the git-bug is written) and absolutely nothing about GraphQL (which todo.sr.ht uses for communication). AI to the rescue. I would like to vibe code (and eventually debug and make functional) bridge to the SourceHut issue tracker.

    Goals

    Functional fix for https://github.com/git-bug/git-bug/issues/1024

    Resources

    • anybody how actually understands how GraphQL and authentication on SourceHut (OAuth2) works

    Contribute to terraform-provider-libvirt by pinvernizzi

    Description

    The SUSE Manager (SUMA) teams' main tool for infrastructure automation, Sumaform, largely relies on terraform-provider-libvirt. That provider is also widely used by other teams, both inside and outside SUSE.

    It would be good to help the maintainers of this project and give back to the community around it, after all the amazing work that has been already done.

    If you're interested in any of infrastructure automation, Terraform, virtualization, tooling development, Go (...) it is also a good chance to learn a bit about them all by putting your hands on an interesting, real-use-case and complex project.

    Goals

    • Get more familiar with Terraform provider development and libvirt bindings in Go
    • Solve some issues and/or implement some features
    • Get in touch with the community around the project

    Resources

    Create a go module to wrap happy-compta.fr by cbosdonnat

    Description

    https://happy-compta.fr is a tool for french work councils simple book keeping. While it does the job, it has no API to work with and it is tedious to enter loads of operations.

    Goals

    Write a go client module to be used as an API to programmatically manipulate the tool.

    Writing an example tool to load data from a CSV file would be good too.

    HTTP API for nftables by crameleon

    Background

    The idea originated in https://progress.opensuse.org/issues/164060 and is about building RESTful API which translates authorized HTTP requests to operations in nftables, possibly utilizing libnftables-json(5).

    Originally, I started developing such an interface in Go, utilizing https://github.com/google/nftables. The conversion of string networks to nftables set elements was problematic (unfortunately no record of details), and I started a second attempt in Python, which made interaction much simpler thanks to native nftables Python bindings.

    Goals

    1. Find and track the issue with google/nftables
    2. Revisit and polish the Go or Python code (prefer Go, but possibly depends on implementing missing functionality), primarily the server component
    3. Finish functionality to interact with nftables sets (retrieving and updating elements), which are of interest for the originating issue
    4. Align test suite
    5. Packaging

    Resources

    • https://git.netfilter.org/nftables/tree/py/src/nftables.py
    • https://git.com.de/Georg/nftables-http-api (to be moved to GitHub)
    • https://build.opensuse.org/package/show/home:crameleon:containers/pytest-nftables-container

    Results

    • Started new https://github.com/tacerus/nftables-http-api.
    • First Go nftables issue was related to set elements needing to be added with different start and end addresses - coincidentally, this was recently discovered by someone else, who added a useful helper function for this: https://github.com/google/nftables/pull/342.
    • Further improvements submitted: https://github.com/google/nftables/pull/347.

    Side results

    Upon starting to unify the structure and implementing more functionality, missing JSON output support was noticed for some subcommands in libnftables. Submitted patches here as well:

    • https://lore.kernel.org/netfilter-devel/20251203131736.4036382-2-georg@syscid.com/T/#u

    Kubernetes-Based ML Lifecycle Automation by lmiranda

    Description

    This project aims to build a complete end-to-end Machine Learning pipeline running entirely on Kubernetes, using Go, and containerized ML components.

    The pipeline will automate the lifecycle of a machine learning model, including:

    • Data ingestion/collection
    • Model training as a Kubernetes Job
    • Model artifact storage in an S3-compatible registry (e.g. Minio)
    • A Go-based deployment controller that automatically deploys new model versions to Kubernetes using Rancher
    • A lightweight inference service that loads and serves the latest model
    • Monitoring of model performance and service health through Prometheus/Grafana

    The outcome is a working prototype of an MLOps workflow that demonstrates how AI workloads can be trained, versioned, deployed, and monitored using the Kubernetes ecosystem.

    Goals

    By the end of Hack Week, the project should:

    1. Produce a fully functional ML pipeline running on Kubernetes with:

      • Data collection job
      • Training job container
      • Storage and versioning of trained models
      • Automated deployment of new model versions
      • Model inference API service
      • Basic monitoring dashboards

    2. Showcase a Go-based deployment automation component, which scans the model registry and automatically generates & applies Kubernetes manifests for new model versions.

    3. Enable continuous improvement by making the system modular and extensible (e.g., additional models, metrics, autoscaling, or drift detection can be added later).

    4. Prepare a short demo explaining the end-to-end process and how new models flow through the system.

    Resources

    Project Repository

    Updates

    1. Training pipeline and datasets
    2. Inference Service py

    Advent of Code: The Diaries by amanzini

    Description

    It was the Night Before Compile Time ...

    Hackweek 25 (December 1-5) perfectly coincides with the first five days of Advent of Code 2025. This project will leverage this overlap to participate in the event in real-time.

    To add a layer of challenge and exploration (in the true spirit of Hackweek), the puzzles will be solved using a non-mainstream, modern language like Ruby, D, Crystal, Gleam or Zig.

    The primary project intent is not just simply to solve the puzzles, but to exercise result sharing and documentation. I'd create a public-facing repository documenting the process. This involves treating each day's puzzle as a mini-project: solving it, then documenting the solution with detailed write-ups, analysis of the language's performance and ergonomics, and visualizations.

                                   |
                             \ ' /
                           -- (*) --
                              >*<
                             >0<@<
                            >>>@<<*
                           >@>*<0<<<
                          >*>>@<<<@<<
                         >@>>0<<<*<<@<
                        >*>>0<<@<<<@<<<
                       >@>>*<<@<>*<<0<*<
         \*/          >0>>*<<@<>0><<*<@<<
     ___\\U//___     >*>>@><0<<*>>@><*<0<<
     |\\ | | \\|    >@>>0<*<0>>@<<0<<<*<@<<
     | \\| | _(UU)_ >((*))_>0><*<0><@<<<0<*<
     |\ \| || / //||.*.*.*.|>>@<<*<<@>><0<<<
     |\\_|_|&&_// ||*.*.*.*|_\\db//_
     """"|'.'.'.|~~|.*.*.*|     ____|_
         |'.'.'.|   ^^^^^^|____|>>>>>>|
         ~~~~~~~~         '""""`------'
------------------------------------------------
This ASCII pic can be found at
https://asciiart.website/art/1831

    Goals

    Code, Docs, and Memes: An AoC Story

    • Have fun!

    • Involve more people, play together

    • Solve Days 1-5: Successfully solve both parts of the Advent of Code 2025 puzzles for Days 1-5 using the chosen non-mainstream language.

    • Daily Documentation & Language Review: Publish a detailed write-up for each day. This documentation will include the solution analysis, the chosen algorithm, and specific commentary on the language's ergonomics, performance, and standard library for the given task.

    toki pona programing language by dgarcia

    Description

    Toki Pona is a philosophical and artistic constructed language designed for its small vocabulary, simplicity, and ease of acquisition.

    The idea is to bring the idea of simplicity to a new programing language using this language words and limitations to implement it.

    The name for this programming language could be: "toki ilo" or "ilo pona". I will ask the community to get other ideas and also to get feedback about the initial design.

    The idea is to start to implement something as a gcc frontend.

    Goals

    • The language design should be really simple but completely functional:
      • functions
      • variables
      • conditional
      • loop
      • data structures
    • The keywords should be from toki pona, and better if could be read as pseudo code in toki pona
    • It should be possible to "compile" code written in sitelen pona

    Resources