Contributing to Meshery UI

UI Contribution Flow

Meshery UI is built on React and Next.js. In nearly all cases, while contributing to Meshery UI, you will need to build and run Meshery Server as well. Meshery Server is written in Go (Golang) and leverages Go Modules. To make building of each component easier a Makefile is included in the main repository folder. Use make to build any and all components.

Architecture

The following is a list of top-level frameworks, libraries, design system used in Meshery UI.

  • NextJS - Server and router
  • ReactJS - User Interface library
  • Material UI - Design System
  • BillboardJS - Charting library, used for exposing Grafana and Prometheus-collected metrics
  • CytoscapeJS - a visualization tool for canvas-based, visual topology (networks)

Meshery Server APIs

The API overview in the Extensibility guide offers high-level insight, while each API reference (below) offers details pertaining to each API endpoints’ behavior and use.

REST API

Meshery provides a REST API available through the default port of 9081/tcp at <hostname>:<port>/api/. See the REST API Reference for a complete list of endpoints available with short description of their purpose and example code.

GraphQL API

Meshery provides a GraphQl API available through the default port of 9081/tcp at <hostname>:<port>/api/graphql/query. See the GraphQL API Reference Relay is the client used.

Design

Meshery UI is a significant component of the value proposition Meshery offers to individuals and organizations seeking to adopt and operate a service mesh or collection of service meshes.

User Flows / Wireframing / Mockups

Figma is used as the user flow and UI mockup design tool. The Meshery UI design file can be viewed by using this open invitation for view access. Fill-in a community member form to gain access to additional community resources.

Design Goals

The designs in this specification should result in enabling:

  • User experience should be intuitive - Meshery’s UX, which includes Meshery UI as a component of the overall UX, needs to be simple, but powerful. This is achieved through intuitive layouts and predefined filters that accommodate common tasks. This is achieved through sensible defaults, consistency of user interaction paradigms and features that delight the user.

  • Extensible - Meshery UI should be a first-class component of Meshery, but also facilitate third-party integrations.

  • Real-time - Meshery UI should be event-driven where possible.

Setup

Node Version Recommendations

We recommend using Node 18 LTS. Meshery UI’s build script supports other Node versions as well, including node16 and node17, but is recommended to use Node 18 LTS.

Linting-UI

When contributing to Meshery UI, it is advisable to:

  • Use prettier and eslint plugin for Visual Studio Code.
  • Disable plugins other than prettier and eslint for formatting and linting, if any.

Install UI dependencies

To install/update the UI dependencies:


make ui-setup

Build and export UI

To build and export the UI code:


make ui-build

Using this command, changes that you make are not rebuilt automatically. You will have to run this command again to rebuild the UI and see them.

Now that the UI code is built, Meshery UI will be available at http://localhost:9081 when Meshery Server is running (Read below).

To build and export the UI code and build and run Meshery Server:


make ui-server

Run Meshery Server

To start running Meshery Server locally:


make server

Now, Meshery will run on the default port http://localhost:9081.

Please note: If you see “Meshery Development Incompatible” while trying to sign into Meshery Server, then follow these steps:

Potential Solution:

  • Go to your meshery folder in your local-system where you’ve cloned it. Execute:

  • git remote add upstream https://github.com/meshery/meshery
  • git fetch upstream
  • Restart the meshery server
  • Additionally, before restarting the server, if you like to pull the latest changes, you can do: git pull upstream master

UI Development Server

If you want to work on the UI, it will be a good idea to use the included UI development server. You can run the UI development server by running the following command:


make ui

Refer to Contributing to Meshery Server, if needed.

Make sure to have Meshery Server configured, up and running on the default port http://localhost:9081 and choose a provider to login with (visit http://localhost:9081) before proceeding to access and work on the UI server at http://localhost:3000.

Any UI changes made now will automatically be rebuilt and served in your browser.

Running Cypress integration tests

To run cypress integration tests, a convenience make target called ui-integration-tests that installs dependencies in /ui and /provider-ui folders as prerequisite and invokes ci-test-integration npm script found in /ui/package.json


make ui-integration-tests

Above command must be run from Meshery repository's root folder.

Refer to Meshery Cypress Testing for details of how to contribute and benefit from Meshery Cypress (integration & end-to-end) testing.

Static Files, Icons and Images

The Meshery UI public folder contains static files. Its folder structure looks like this:

meshery
└── ui
    └── public
        └── static
            ├── favicon.png
            ├── fonts
            ├── img
            └── style

Images and icons used in Meshery UI need to be sourced from the public directory of images. The files written inside this directory should only end with the extensions like .svg, .png, .jpg or .jpeg. Always use vector-based graphics (.svg), unless your have extenuating circumstances.

Conventions for SVG files
  1. SVGs should be optimized and compressed.
    1. Use an online, SVG optimizer, like https://www.svgviewer.dev, to compress the file(s) to smaller size.
  2. All SVGs should have height and width properties set to 20px x 20px by default. Ensure that height and width attributes are always set in original SVG.
  3. All SVGs should have height and width included as a style prop in their React component.
  4. Always include this XML header in each SVG image: 
    
 
    <?xml version="1.0" encoding="UTF-8"?><!DOCTYPE svg>
  5. Svg can only fall under two categories, and this categories should be the name of folder
    1. white: containing white or mono-colored version of that SVG
    2. color: containing colored version of that SVG. e.g.: the Meshery logo icon folder structure looks like this: 
       └── img
 └── meshery
     ├── white
     |   └── meshery-white.svg
     └── color
         └── meshery-color.svg
  6. Avoid any kind of duplicity in the versions of icons used.

For accessing the svg file as data-url, the utf8 encoding should be used in place of base64.Use encodeURIComponent on SVG data URIs. \


let svg = 'data:image/svg+xml;utf8,' + encodeURIComponent(svgFile);

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