[comment]: # Harvester does not officially come with a CLI tool, the user is supposed to interact with Harvester mostly through the UI [comment]: # Though it is theoretically possible to use kubectl to interact with Harvester, the manipulation of Kubevirt YAML objects is absolutely not user friendly. [comment]: # Inspired by tools like multipass from Canonical to easily and rapidly create one of multiple VMs, I began the development of Harvester CLI. Currently, it works but Harvester CLI needs some love to be up-to-date with Harvester v1.0.2 and needs some bug fixes and improvements as well.

Project Description

Harvester CLI is a command line interface tool written in Go, designed to simplify interfacing with a Harvester cluster as a user. It is especially useful for testing purposes as you can easily and rapidly create VMs in Harvester by providing a simple command such as: harvester vm create my-vm --count 5 to create 5 VMs named my-vm-01 to my-vm-05.

asciicast

Harvester CLI is functional but needs a number of improvements: up-to-date functionality with Harvester v1.0.2 (some minor issues right now), modifying the default behaviour to create an opensuse VM instead of an ubuntu VM, solve some bugs, etc.

Github Repo for Harvester CLI: https://github.com/belgaied2/harvester-cli

Done in previous Hackweeks

  • Create a Github actions pipeline to automatically integrate Harvester CLI to Homebrew repositories: DONE
  • Automatically package Harvester CLI for OpenSUSE / Redhat RPMs or DEBs: DONE

Goal for this Hackweek

The goal for this Hackweek is to bring Harvester CLI up-to-speed with latest Harvester versions (v1.3.X and v1.4.X), and improve the code quality as well as implement some simple features and bug fixes.

Some nice additions might be: * Improve handling of namespaced objects * Add features, such as network management or Load Balancer creation ? * Add more unit tests and, why not, e2e tests * Improve CI * Improve the overall code quality * Test the program and create issues for it

Issue list is here: https://github.com/belgaied2/harvester-cli/issues

Resources

The project is written in Go, and using client-go the Kubernetes Go Client libraries to communicate with the Harvester API (which is Kubernetes in fact). Welcome contributions are:

  • Testing it and creating issues
  • Documentation
  • Go code improvement

What you might learn

Harvester CLI might be interesting to you if you want to learn more about:

  • GitHub Actions
  • Harvester as a SUSE Product
  • Go programming language
  • Kubernetes API
  • Kubevirt API objects (Manipulating VMs and VM Configuration in Kubernetes using Kubevirt)

This project is part of:

Hack Week 21 Hack Week 22 Hack Week 23 Hack Week 24

Activity

  • 3 months ago: gpuliti joined this project.
  • 3 months ago: gpuliti liked this project.
  • 4 months ago: eminguez liked this project.
  • 4 months ago: joachimwerner liked this project.
  • 5 months ago: taotao joined this project.
  • over 1 year ago: Ishwon liked this project.
  • over 1 year ago: mpiala liked this project.
  • over 1 year ago: mhill liked this project.
  • about 2 years ago: mrussell liked this project.
  • about 2 years ago: rcase liked this project.
  • about 2 years ago: roseswe joined this project.
  • over 2 years ago: rebeccazhuo liked this project.
  • over 2 years ago: dpock liked this project.
  • over 2 years ago: mohamed.belgaied started this project.
  • over 2 years ago: mohamed.belgaied liked this project.
  • over 2 years ago: mohamed.belgaied added keyword "rancher" to this project.
  • over 2 years ago: mohamed.belgaied added keyword "go" to this project.
  • over 2 years ago: mohamed.belgaied added keyword "golang" to this project.
  • over 2 years ago: mohamed.belgaied added keyword "homebrew" to this project.
  • over 2 years ago: mohamed.belgaied added keyword "rpmbuild" to this project.
  • over 2 years ago: mohamed.belgaied added keyword "rpm" to this project.
  • over 2 years ago: mohamed.belgaied added keyword "cli" to this project.
  • over 2 years ago: mohamed.belgaied added keyword "client-go" to this project.
  • over 2 years ago: mohamed.belgaied added keyword "kubevirt" to this project.
  • over 2 years ago: mohamed.belgaied added keyword "kvm" to this project.
  • All Activity

    Comments

    • mohamed.belgaied
      5 months ago by mohamed.belgaied | Reply

      Should we revive this project for the next HackWeek ?

      • tonyajoyce
        3 months ago by tonyajoyce | Reply

        eyy definitely! This project sounds so good tho drive mad

    • gpuliti
      3 months ago by gpuliti | Reply

      Is the project ongoing? I might be interested!

      I've done something similar a couple of years ago, but more wide services capable https://github.com/Wabri/Imp I had something also for redmine that I was working on, but the laptop where I was working on was of the company I left before suse and sadly I totally forgot to push that feature branch.

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    Features

    • File Type Sorting: Automatically move files into subdirectories based on their extensions (e.g., documents, images, videos).
    • Date-Based Organization: Add an option to organize files by creation date into year/month folders.
    • User-Friendly CLI: Build intuitive commands and clear outputs for ease of use. This version maintains the core idea of organizing files efficiently while focusing on Go development and practical file management.


    Dartboard TUI by IValentin

    Description

    Our scalability and performance testing swiss-army knife tool Dartboard is a major WIP so why not add more scope creep? Dartboard is a cli tool which enables users to:

    • Define a "Dart" config file as YAML which defines the various components to be created/setup when Dartboard runs its commands
    • Spin up infrastructure utilizing opentofu/terraform providers
    • Setup K3s or RKE2 clusters on the newly created infrastructure
    • Deploy Rancher (with or without downstream cluster), rancher-monitoring (Grafana + Prometheus)
    • Create resources in-bulk within the newly created Rancher cluster (ConfigMaps, Secrets, Users, Roles, etc.)
    • Run various performance and scalability tests via k6
    • Export/Import various tracked metrics (WIP)

    Given all these features (and the features to come), it can be difficult to onboard and transfer knowledge of the tool. With a TUI, Dartboard's usage complexity can be greatly reduced!

    Goals

    • Create a TUI for Dartboard's "subcommands"
    • Gain more familiarity with Dartboard and create a more user-friendly interface to enable others to use it
    • Stretch Create a TUI workflow for generating a Dart file

    Resources

    https://github.com/charmbracelet/bubbletea


    suse-rancher-supportconfig by eminguez

    Description

    Update: Live at https://github.com/e-minguez/suse-rancher-supportconfig I finally didn't used golang but used gum instead add-emoji

    SUSE's supportconfig support tool collects data from the SUSE Operating system. Rancher's rancher2_logs_collector.sh support tool does the same for RKE2/K3s.

    Wouldn't be nice to have a way to run both and collect all data for SUSE based RKE2/K3s clusters? Wouldn't be even better with a fancy TUI tool like bubbletea?

    Ideally the output should be an html page where you can see the logs/data directly from the browser.

    Goals

    • Familiarize myself with both supportconfig and rancher2_logs_collector.sh tools
    • Refresh my golang knowledge
    • Have something that works at the end of the hackweek ("works" may vary add-emoji )
    • Be better in naming things

    Resources

    All links provided above as well as huh


    Implement a CLI tool for Trento - trentoctl by nkopliku

    Description

    Implement a trentoctl CLI for interacting with a trento installation

    Goals

    • learn rust
    • implement an initial trentoctl tool to enhance trento automation
    • have fun

    Resources

    trento rust. TUIs listed on this other hackweek project Hack on rich terminal user interfaces


    Jenny Static Site Generator by adam.pickering

    Description

    For my personal site I have been using hugo. It works, but I am not satisfied: every time I want to make a change (which is infrequently) I have to read through the documentation again to understand how hugo works. I don't find the documentation easy to use, and the structure of the repository that hugo requires is unintuitive/more complex than what I need. So, I have decided to write my own simple static site generator in Go. It is named Jenny, after my wife.

    Goals

    • Pages can be written in markdown (which is automatically converted to HTML), but other file types are also allowed
    • Easy to understand and use
      • Intuitive, simple design
      • Clear documentation
      • Hot reloading
      • Binaries provided for download
    • Future maintenance is easy
      • Automated releases

    Resources

    https://github.com/adamkpickering/jenny


    Longhorn UI Extension (POC) by yiya.chen

    Description

    The goal is to create a Longhorn UI extension within Rancher using existing resources.
    Longhorn’s UI is built using React, while Rancher’s UI extensions are built using Vue. Developers will explore different approaches to integrate and extend Longhorn’s UI within Rancher’s Vue-based ecosystem, aiming to create a seamless, functional UI extension.

    Goals

    • Build a Longhorn UI extension (look and feel)
    • Support theme switching to align with Rancher’s UI

    Results

    • https://github.com/a110605/longhorn-hackday
    • https://github.com/a110605/longhorn-ui/tree/darkmode
    • https://github.com/houhoucoop/hackweek/tree/main/hackweek24

    Resources

    • Longhorn UI: https://github.com/longhorn/longhorn-ui
    • Rancher UI Extension: https://extensions.rancher.io/extensions/next/home
    • darkreader: https://www.npmjs.com/package/darkreader
    • veaury: https://github.com/gloriasoft/veaury
    • module federation: https://webpack.js.org/concepts/module-federation/


    Rancher microfrontend extensions by ftorchia

    Description

    Rancher UI Extensions allow users, developers, partners, and customers to extend and enhance the Rancher UI. Extensions are Helm charts that can only be installed once into a cluster. The charts contain a UI built package that is downloaded and linked to the Host UI at runtime; this means that the extension pkg needs to be implemented using the same technology and have the same APIs as Rancher UI.

    Goals

    We want to create a new type of Rancher extension, based on microfrontend pattern. The extension is served in a docker container in the k8s clusters and embedded in the host UI; this would guarantee us to be able to create extensions unrelated to the rancher UI architecture, in any technology.

    Non Goals

    We want to apply the microfrontend pattern to the product-level extensions; we don't want to apply it to cluster-level extensions.

    Resources

    rancher-extension-microfrontend, Rancher extensions


    Cluster API Provider for Harvester by rcase

    Project Description

    The Cluster API "infrastructure provider" for Harvester, also named CAPHV, makes it possible to use Harvester with Cluster API. This enables people and organisations to create Kubernetes clusters running on VMs created by Harvester using a declarative spec.

    The project has been bootstrapped in HackWeek 23, and its code is available here.

    Work done in HackWeek 2023

    • Have a early working version of the provider available on Rancher Sandbox : *DONE *
    • Demonstrated the created cluster can be imported using Rancher Turtles: DONE
    • Stretch goal - demonstrate using the new provider with CAPRKE2: DONE and the templates are available on the repo

    Goals for HackWeek 2024

    • Add support for ClusterClass
    • Add e2e testing
    • Add more Unit Tests
    • Improve Status Conditions to reflect current state of Infrastructure
    • Improve CI (some bugs for release creation)
    • Testing with newer Harvester version (v1.3.X and v1.4.X)
    • Due to the length and complexity of the templates, maybe package some of them as Helm Charts.
    • Other improvement suggestions are welcome!

    DONE in HackWeek 24:

    Thanks to @isim and Dominic Giebert for their contributions!

    Resources

    Looking for help from anyone interested in Cluster API (CAPI) or who wants to learn more about Harvester.

    This will be an infrastructure provider for Cluster API. Some background reading for the CAPI aspect:


    Enabling Rancher as an OIDC Provider by rcabello

    Description

    Kubernetes supports OpenID Connect (OIDC) natively as an authentication mechanism, enabling token-based user authentication. This can be configured through flags in the Kubernetes API server or by using AuthenticationConfiguration.

    The purpose of this project is to enable Rancher to function as an OIDC provider, allowing Rancher's local cluster to act as an OIDC identity provider for downstream clusters. This setup will allow users to authenticate directly with downstream clusters without relying on Rancher’s proxy and impersonation mechanisms.

    Rancher will continue to support all authentication providers. When a user attempts to log in via the Rancher OIDC provider, they will be redirected to the authentication provider configured in Rancher.

    This approach also facilitates integration with third-party tools (e.g StackState)

    Goals

    • Implement Rancher as an OIDC provider using the ORY Fosite library, focusing only on the essential functionality required for basic integration.
    • Enable downstream clusters to authenticate using JWT tokens issued by Rancher.
    • Configure StackState to authenticate using Rancher as an OIDC provider.

    Resources

    https://github.com/ory/fosite


    Small healthcheck tool for Longhorn by mbrookhuis

    Project Description

    We have often problems (e.g. pods not starting) that are related to PVCs not running, cluster (nodes) not all up or deployments not running or completely running. This all prevents administration activities. Having something that can regular be run to validate the status of the cluster would be helpful, and not as of today do a lot of manual tasks.

    As addition (read enough time), we could add changing reservation, adding new disks, etc. --> This didn't made it. But the scripts can easily be adopted.

    This tool would decrease troubleshooting time, giving admins rights to the rancher GUI and could be used in automation.

    Goal for this Hackweek

    At the end we should have a small python tool that is doing a (very) basic health check on nodes, deployments and PVCs. First attempt was to make it in golang, but that was taking to much time.

    Overview

    This tool will run a simple healthcheck on a kubernetes cluster. It will perform the following actions:

    • node check: This will check all nodes, and display the status and the k3s version. If the status of the nodes is not "Ready" (this should be only reported), the cluster will be reported as having problems

    • deployment check: This check will list all deployments, and display the number of expected replicas and the used replica. If there are unused replicas this will be displayed. The cluster will be reported as having problems.

    • pvc check: This check will list of all pvc's, and display the status and the robustness. If the robustness is not "Healthy", the cluster will be reported as having problems.

    If there is a problem registered in the checks, there will be a warning that the cluster is not healthy and the program will exit with 1.

    The script has 1 mandatory parameter and that is the kubeconf of the cluster or of a node off the cluster.

    The code is writen for Python 3.11, but will also work on 3.6 (the default with SLES15.x). There is a venv present that will contain all needed packages. Also, the script can be run on the cluster itself or any other linux server.

    Installation

    To install this project, perform the following steps:

    • Create the directory /opt/k8s-check

    mkdir /opt/k8s-check

    • Copy all the file to this directory and make the following changes:

    chmod +x k8s-check.py