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Contributing Overview

Please do! Thanks for your help improving the project! 🎈

All contributors are welcome. Please see the newcomers welcome guide for how, where and why to contribute. This project is community-built and welcomes collaboration. Contributors are expected to adhere to the Contributor Covenant code of conduct.

Not sure where to start? First, see the newcomers welcome guide. Grab an open issue with the help-wanted label and jump in. Join the Slack account and engage in conversation. Create a new issue if needed. All pull requests should reference an open issue. Include keywords in your pull request descriptions, as well as commit messages, to automatically close issues in GitHub.

Sections

General Contribution Flow

In order to contribute to Meshery, please follow the fork-and-pull request workflow described here.

Signing-off on Commits (Developer Certificate of Origin)

To contribute to this project, you must agree to the Developer Certificate of Origin (DCO) for each commit you make. The DCO is a simple statement that you, as a contributor, have the legal right to make the contribution.

See the DCO file for the full text of what you must agree to and how it works here. To signify that you agree to the DCO for contributions, you simply add a line to each of your git commit messages:

Signed-off-by: Jane Smith <[email protected]>

In most cases, you can add this signoff to your commit automatically with the -s or --signoff flag to git commit. You must use your real name and a reachable email address (sorry, no pseudonyms or anonymous contributions). An example of signing off on a commit:

$ commit -s -m “my commit message w/signoff”

To ensure all your commits are signed, you may choose to add this alias to your global .gitconfig:

~/.gitconfig

[alias]
  amend = commit -s --amend
  cm = commit -s -m
  commit = commit -s

Or you may configure your IDE, for example, Visual Studio Code to automatically sign-off commits for you:

Documentation Contribution Flow

Please contribute! Meshery documentation uses GitHub Pages to host the docs site. Learn more about Meshery's documentation framework. The process of contributing follows this flow:

  1. Create a fork, if you have not already, by following the steps described here
  1. In the local copy of your fork, navigate to the docs folder. cd docs
  2. Create and checkout a new branch to make changes within git checkout -b <my-changes>
  3. Edit/add documentation. vi <specific page>.md
  4. Run site locally to preview changes. make site
  5. Commit, sign-off, and push changes to your remote branch. git push origin <my-changes>
  6. Open a pull request (in your web browser) against our main repo: https://github.com/layer5io/meshery.

Meshery Contribution Flow

Meshery is written in Go (Golang) and leverages Go Modules. UI is built on React and Next.js. To make building and packaging easier a Makefile is included in the main repository folder.

Relevant coding style guidelines are the Go Code Review Comments and the Formatting and style section of Peter Bourgon's Go: Best Practices for Production Environments.

Please note: All make commands should be run in a terminal from within the Meshery's main folder.

Prerequisites for building Meshery in your development environment:

  1. Go version 1.11+ installed if you want to build and/or make changes to the existing code.
  2. GOPATH environment variable should be configured appropriately
  3. npm and node should be installed your machine, preferrably the latest versions.
  4. Fork this repository (git clone https://github.com/layer5io/meshery.git), clone your forked version of Meshery to your local, preferrably outside GOPATH. If you happen to checkout Meshery inside your GOPATH and you have version of Go prior to version 1.13, please set an environment variable GO111MODULE=on to enable GO Modules.

Build and run Meshery server

To build & run the Meshery server code, run the following command:

make run-local

Any time changes are made to the GO code, you will have to stop the server and run the above command again. Once the Meshery server is up and running, you should be able to access Meshery on your localhost on port 9081 at http://localhost:9081. One thing to note, you might NOT see the Meshery UI until the UI code is built as well.

Building Docker image

To build a Docker image of Meshery, please ensure you have Docker installed to be able to build the image. Now, run the following command to build the Docker image:

make docker

Writing a Meshery Adapter

Meshery uses adapters to provision and interact with different service meshes. Follow these instructions to create a new adapter or modify and existing adapter.

  1. Get the proto buf spec file from Meshery repo: wget https://raw.githubusercontent.com/layer5io/meshery/master/meshes/meshops.proto
  2. Generate code
    1. Using Go as an example, do the following:
      • adding GOPATH to PATH: export PATH=$PATH:$GOPATH/bin
      • install grpc: go get -u google.golang.org/grpc
      • install protoc plugin for go: go get -u github.com/golang/protobuf/protoc-gen-go
      • Generate Go code: protoc -I meshes/ meshes/meshops.proto --go_out=plugins=grpc:./meshes/
    2. For other languages, please refer to gRPC.io for language-specific guides.
  3. Implement the service methods and expose the gRPC server on a port of your choice (e.g. 10000).

Tip: The Meshery adapter for Istio is a good reference adapter to use as an example of a Meshery adapter written in Go.

UI Contribution Flow

Meshery is written in Go (Golang) and leverages Go Modules. UI is built on React and Next.js. To make building and packaging easier a Makefile is included in the main repository folder.

Install UI dependencies

To install/update the UI dependencies:

make setup-ui-libs

Build and export UI

To build and export the UI code:

make build-ui

Now that the UI code is built, Meshery UI will be available at http://localhost:9081. Any time changes are made to the UI code, the above code will have to run to rebuild the UI.

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 run-ui-dev

Once you have the server up and running, you will be able to access the Meshery UI at http://localhost:3000. One thing to note is that for the UI dev server to work, you need Meshery server running on the default port of 9081. Any UI changes made now will automatically be recompiled and served in the browser.

Maintaining

All contributors are invited to review pull requests. See this short video on how to review a pull request.

License

This repository and site are available as open source under the terms of the Apache 2.0 License.