A common challenge for OpenStack and K8S deployments is debugging the network when things go awry. The aim of DPHAT is to provide operators of cloud infrastructure with tooling that can analyze the environment and supply the following:

  • Feedback that the environment is in a healthy operational state
  • Identification of and guidance about where something in the network fabric is broken
  • Guidance on remediation steps
  • A pluggable interface to enable support for various cloud platforms, their respective networking backends, and any hardware devices (ie switches/routers) present in the deployment
  • RESTful API, CLI, and UI

This involves:

  • Gathering information from any relevant SDN controller, representing the network topology for the cloud, and developing an algorithm for analyzing the topology
  • Probing of VM's and containers via ARP, ICMP (ping), port scan, ofproto trace, etc. to asses forwarding and security policy instantiation
  • Reading pod / compute node state and identifying missing namespaces, tap devices, iptables chains, etc.
  • Building a database of remediation actions that can be correlated with issues flagged by DPHAT

If you want to help alleviate the headache of debugging networking issues in the cloud, let's work together!

Looking for hackers with the skills:

openstack kubernetes networking sdn openvswitch

This project is part of:

Hack Week 18

Activity

  • over 5 years ago: nicolasbock started this project.
  • over 5 years ago: nicolasbock liked this project.
  • over 5 years ago: rtidwell added keyword "openstack" to this project.
  • over 5 years ago: rtidwell added keyword "kubernetes" to this project.
  • over 5 years ago: rtidwell added keyword "networking" to this project.
  • over 5 years ago: rtidwell added keyword "sdn" to this project.
  • over 5 years ago: rtidwell added keyword "openvswitch" to this project.
  • over 5 years ago: rtidwell originated this project.

  • Comments

    Be the first to comment!

    Similar Projects

    Integrate Backstage with Rancher Manager by nwmacd

    Description

    Backstage (backstage.io) is an open-source, CNCF project that allows you to create your own developer portal. There are many plugins for Backstage.

    This could be a great compliment to Rancher Manager.

    Goals

    Learn and experiment with Backstage and look at how this could be integrated with Rancher Manager. Goal is to have some kind of integration completed in this Hack week.

    Progress

    Screen shot of home page at the end of Hackweek:

    Home

    Day One

    • Got Backstage running locally, understanding configuration with HTTPs.
    • Got Backstage embedded in an IFRAME inside of Rancher
    • Added content into the software catalog (see: https://backstage.io/docs/features/techdocs/getting-started/)
    • Understood more about the entity model

    Day Two

    • Connected Backstage to the Rancher local cluster and configured the Kubernetes plugin.
    • Created Rancher theme to make the light theme more consistent with Rancher

    Home

    Days Three and Day Four

    • Created two backend plugins for Backstage:

      1. Catalog Entity Provider - this imports users from Rancher into Backstage
      2. Auth Provider - uses the proxied sign-in pattern to check the Rancher session cookie, to user that to authenticate the user with Rancher and then log them into Backstage by connecting this to the imported User entity from the catalog entity provider plugin.
    • With this in place, you can single-sign-on between Rancher and Backstage when it is deployed within Rancher. Note this is only when running locally for development at present

    Home

    Home

    Day Five

    • Start to build out a production deployment for all of the above
    • Made some progress, but hit issues with the authentication and proxying when running proxied within Rancher, which needs further investigation


    Harvester Packer Plugin by mrohrich

    Description

    Hashicorp Packer is an automation tool that allows automatic customized VM image builds - assuming the user has a virtualization tool at their disposal. To make use of Harvester as such a virtualization tool a plugin for Packer needs to be written. With this plugin users could make use of their Harvester cluster to build customized VM images, something they likely want to do if they have a Harvester cluster.

    Goals

    Write a Packer plugin bridging the gap between Harvester and Packer. Users should be able to create customized VM images using Packer and Harvester with no need to utilize another virtualization platform.

    Resources

    Hashicorp documentation for building custom plugins for Packer https://developer.hashicorp.com/packer/docs/plugins/creation/custom-builders

    Source repository of the Harvester Packer plugin https://github.com/m-ildefons/harvester-packer-plugin


    Metrics Server viewer for Kubernetes by bkampen

    This project is finished please visit the github repo below for the tool.

    Description

    Build a CLI tools which can visualize Kubernetes metrics from the metrics-server, so you're able to watch these without installing Prometheus and Grafana on a cluster.

    Goals

    • Learn more about metrics-server
    • Learn more about the inner workings of Kubernetes.
    • Learn more about Go

    Resources

    https://github.com/bvankampen/metrics-viewer


    ddflare: (Dynamic)DNS management via Cloudflare API in Kubernetes by fgiudici

    Description

    ddflare is a project started a couple of weeks ago to provide DDNS management using v4 Cloudflare APIs: Cloudflare offers management via APIs and access tokens, so it is possible to register a domain and implement a DynDNS client without any other external service but their API.

    Since ddflare allows to set any IP to any domain name, one could manage multiple A and ALIAS domain records. Wouldn't be cool to allow full DNS control from the project and integrate it with your Kubernetes cluster?

    Goals

    Main goals are:

    1. add containerized image for ddflare
    2. extend ddflare to be able to add and remove DNS records (and not just update existing ones)
    3. add documentation, covering also a sample pod deployment for Kubernetes
    4. write a ddflare Kubernetes operator to enable domain management via Kubernetes resources (using kubebuilder)

    Available tasks and improvements tracked on ddflare github.

    Resources

    • https://github.com/fgiudici/ddflare
    • https://developers.cloudflare.com/api/
    • https://book.kubebuilder.io


    ClusterOps - Easily install and manage your personal kubernetes cluster by andreabenini

    Description

    ClusterOps is a Kubernetes installer and operator designed to streamline the initial configuration and ongoing maintenance of kubernetes clusters. The focus of this project is primarily on personal or local installations. However, the goal is to expand its use to encompass all installations of Kubernetes for local development purposes.
    It simplifies cluster management by automating tasks and providing just one user-friendly YAML-based configuration config.yml.

    Overview

    • Simplified Configuration: Define your desired cluster state in a simple YAML file, and ClusterOps will handle the rest.
    • Automated Setup: Automates initial cluster configuration, including network settings, storage provisioning, special requirements (for example GPUs) and essential components installation.
    • Ongoing Maintenance: Performs routine maintenance tasks such as upgrades, security updates, and resource monitoring.
    • Extensibility: Easily extend functionality with custom plugins and configurations.
    • Self-Healing: Detects and recovers from common cluster issues, ensuring stability, idempotence and reliability. Same operation can be performed multiple times without changing the result.
    • Discreet: It works only on what it knows, if you are manually configuring parts of your kubernetes and this configuration does not interfere with it you can happily continue to work on several parts and use this tool only for what is needed.

    Features

    • distribution and engine independence. Install your favorite kubernetes engine with your package manager, execute one script and you'll have a complete working environment at your disposal.
    • Basic config approach. One single config.yml file with configuration requirements (add/remove features): human readable, plain and simple. All fancy configs managed automatically (ingress, balancers, services, proxy, ...).
    • Local Builtin ContainerHub. The default installation provides a fully configured ContainerHub available locally along with the kubernetes installation. This configuration allows the user to build, upload and deploy custom container images as they were provided from external sources. Internet public sources are still available but local development can be kept in this localhost server. Builtin ClusterOps operator will be fetched from this ContainerHub registry too.
    • Kubernetes official dashboard installed as a plugin, others planned too (k9s for example).
    • Kubevirt plugin installed and properly configured. Unleash the power of classic virtualization (KVM+QEMU) on top of Kubernetes and manage your entire system from there, libvirtd and virsh libs are required.
    • One operator to rule them all. The installation script configures your machine automatically during installation and adds one kubernetes operator to manage your local cluster. From there the operator takes care of the cluster on your behalf.
    • Clean installation and removal. Just test it, when you are done just use the same program to uninstall everything without leaving configs (or pods) behind.

    Planned features (Wishlist / TODOs)

    • Containerized Data Importer (CDI). Persistent storage management add-on for Kubernetes to provide a declarative way of building and importing Virtual Machine Disks on PVCs for


    Remote control for Adam Audio active monitor speakers by dmach

    Description

    I own a pair of Adam Audio A7V active studio monitor speakers. They have ethernet connectors that allow changing their settings remotely using the A Control software. From Windows :-( I couldn't find any open source alternative for Linux besides AES70.js library.

    Goals

    • Create a command-line tool for controlling the speakers.
    • Python is the language of choice.
    • Implement only a simple tool with the desired functionality rather than a full coverage of AES70 standard.

    TODO

    • ✅ discover the device
    • ❌ get device manufacturer and model
    • ✅ get serial number
    • ✅ get description
    • ✅ set description
    • ✅ set mute
    • ✅ set sleep
    • ✅ set input (XRL (balanced), RCA (unbalanced))
    • ✅ set room adaptation
      • bass (1, 0, -1, -2)
      • desk (0, -1, -2)
      • presence (1, 0, -1)
      • treble (1, 0, -1)
    • ✅ set voicing (Pure, UNR, Ext)
    • ❌ the Ext voicing enables the following extended functionality:
      • gain
      • equalizer bands
      • on/off
      • type
      • freq
      • q
      • gain
    • ❌ udev rules to sleep/wakeup the speakers together with the sound card

    Resources

    • https://www.adam-audio.com/en/a-series/a7v/
    • https://www.adam-audio.com/en/technology/a-control-remote-software/
    • https://github.com/DeutscheSoft/AES70.js
    • https://www.aes.org/publications/standards/search.cfm?docID=101 - paid
    • https://www.aes.org/standards/webinars/AESStandardsWebinarSC0212L20220531.pdf
    • https://ocaalliance.github.io/downloads/AES143%20Network%20track%20NA10%20-%20AES70%20Controller.pdf

    Result