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vmware-tanzu
4.7K Stars 324 Forks Apache License 2.0 2.8K Commits 210 Opened issues

Description

Highly extensible platform for developers to better understand the complexity of Kubernetes clusters.

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A highly extensible platform for developers to better understand the complexity of Kubernetes clusters.

Octant is a tool for developers to understand how applications run on a Kubernetes cluster. It aims to be part of the developer's toolkit for gaining insight and approaching complexity found in Kubernetes. Octant offers a combination of introspective tooling, cluster navigation, and object management along with a plugin system to further extend its capabilities.

Features

  • Resource Viewer

    Graphically visualize relationships between objects in a Kubernetes cluster. The status of individual objects are represented by color to show workload performance.

  • Summary View

    Consolidated status and configuration information in a single page aggregated from output typically found using multiple kubectl commands.

  • Port Forward

    Forward a local port to a running pod with a single button for debugging applications and even port forward multiple pods across namespaces.

  • Log Stream

    View log streams of pod and container activity for troubleshooting or monitoring without holding multiple terminals open.

  • Label Filter

    Organize workloads with label filtering for inspecting clusters with a high volume of objects in a namespace.

  • Cluster Navigation

Easily change between namespaces or contexts across different clusters. Multiple kubeconfig files are also supported.

  • Plugin System

Highly extensible plugin system for users to provide additional functionality through gRPC. Plugin authors can add components on top of existing views.

Usage

Octant demo

Installation

Package (Linux only)

  1. Download the

    .deb
    or
    .rpm
    from the releases page.
  2. Install with either

    dpkg -i
    or
    rpm -i
    respectively.

Windows

Chocolatey

  1. Install using chocolatey with the following one-liner:
   choco install octant --confirm

Scoop

  1. Add the extras bucket.
   scoop bucket add extras
  1. Install using scoop.
   scoop install octant

macOS

Homebrew

  1. Install using Homebrew with the following one-liner:
   brew install octant

Download a Pre-built Binary (Linux, macOS, Windows)

  1. Open the releases page from a browser and download the latest tarball or zip file.

  2. Extract the tarball or zip where

    X.Y
    is the release version:
    $ tar -xzvf ~/Downloads/octant_0.X.Y_Linux-64bit.tar.gz
    octant_0.X.Y_Linux-64bit/README.md
    octant_0.X.Y_Linux-64bit/octant
    
  3. Verify it runs:

    $ ./octant_0.X.Y_Linux-64bit/octant version
    

Nightly Builds

Nightly builds of Octant are available for download.

Please note that nightly builds maybe less stable than our tagged releases and are intended to allow early access to preview upcoming features and for plugin authors who want access to the latest plugin APIs.

Browse nightly builds

Getting Started

Before starting Octant, make sure you have access to a healthy cluster. If kubectl is installed, test using

kubectl cluster-info
.

Start running Octant:

$ octant

Octant should immediately launch your default web browser on

127.0.0.1:7777
.

Octant uses the default web browser on the system to act as the UI client. In the future Octant will ship with a UI.

For setting extra configuration such as what kubeconfig or context to use at startup, refer to the documentation.

Plugins

Plugins are a core part of Octant in the Kubernetes ecosystem. A plugin can read objects and allows users to add components to Octant's views.

An example plugin can be found in

cmd/octant-sample-plugin
and installed to the default plugin path with

go run build.go install-test-plugin
.

Some plugins can be found on GitHub in the

#octant-plugin
topic (tag).

Documentation for plugin components can be found in the Plugins section of the documentation.

Discussion

Feature requests, bug reports, and enhancements are welcome. Contributors, maintainers, and users are encouraged to collaborate through these communication channels:

Contributing

Contributors will need to sign a DCO (Developer Certificate of Origin) with all changes. We also ask that a changelog entry is included with your pull request. Details are described in our contributing documentation.

See our hacking guide for getting your development environment setup.

See our roadmap for tentative features in a 1.0 release.

License

Octant is available under the Apache License, Version 2.0

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