Set up your development environment

This guide walks you through setting up your development environment for Grafana plugin development. Including:

• Running a development Grafana server with your plugin installed using Docker
• Setting up GitHub workflows to automate your development and release process
• Extending configurations for ESLint, Prettier, Jest, TypeScript, and Webpack

Docker development environment

The create-plugin tool includes a development environment featuring Docker. It allows you to start an instance of the Grafana application for plugin developers against which you can code.

info

It's not necessary to sign a plugin during development. The Docker development environment that is scaffolded with @grafana/create-plugin will load the plugin without a signature. This is because it is configured by default to run in development mode.

Why use the Docker environment

We have chosen to use Docker because it simplifies the process of creating, deploying, and running applications. It allows you to create consistent and isolated environments for your plugin. This makes it easy to manage dependencies and ensure that the plugin runs the same way across different machines.

With the create-plugin tool, the Docker container is configured with the necessary variables to allow easy access to Grafana and to load plugins without the need for them to be signed. The plugin tool also adds a live reload feature that allows you to make your frontend code changes to trigger refreshes in the browser, and changing the backend code will make the plugin binary to automatically reload.

The docker environment also allows you to attach a debugger to the plugin backend code, making the development process easier.

Get started with Docker

To start your plugin development project, run the following commands in the order listed:

1. npm install: Installs frontend dependencies.
2. npm run dev: Builds and watches the plugin frontend code.
3. mage -v build:linux: Builds the plugin backend code. Rerun this command every time that you edit your backend files.
4. npm run server: Starts a Grafana development server running on http://localhost:3000.

Configure the Grafana version

To test a plugin across different versions of Grafana, set an environment variable. Use GRAFANA_VERSION to set the Grafana version:

npm

GRAFANA_VERSION=10.0.0 npm run server

pnpm

GRAFANA_VERSION=10.0.0 pnpm run server

yarn

GRAFANA_VERSION=10.0.0 yarn run server

Configure the Grafana image

The default Docker image in the plugin tool is grafana-enterprise. If you want to override this image, alter the docker-compose.yaml by changing the grafana_image build argument like so:

docker-compose.yaml

version: '3.7'

services:
  grafana:
    container_name: 'myorg-basic-app'
    build:
      context: ./.config
      args:
        grafana_version: ${GRAFANA_VERSION:-9.1.2}
        grafana_image: ${GRAFANA_IMAGE:-grafana}

This example assigns the environment variable GRAFANA_IMAGE to the build arg grafana_image with a default value of grafana. This gives you the option to set the value when running docker-compose commands.

Debugging Backend plugin

If you're developing a plugin with a backend part, run npm run server with DEVELOPMENT=true. The docker compose file exposes the port 2345 for debugging, from a headless delve instance that will run inside the docker environment. You can attach a debugger client to this port to debug your backend code. For example, in VSCode, you can add a launch.json configuration like this:

{
  "version": "0.2.0",
  "configurations": [
    {
      "name": "Attach to plugin backend in docker",
      "type": "go",
      "request": "attach",
      "mode": "remote",
      "port": 2345,
      "host": "127.0.0.1",
      "showLog": true,
      "trace": "log",
      "logOutput": "rpc",
      "substitutePath": [
        {
          "from": "${workspaceFolder}",
          "to": "/root/<your-plugin-id>"
        }
      ]
    }
  ]
}

You can control the go version and the architecure used to build your plugin in the docker compose by setting GO_VERSION and GO_ARCH environment variables:

docker-compose.yaml

version: '3.7'

services:
  grafana:
    container_name: 'myorg-basic-app'
    build:
      context: ./.config
      args:
        GO_VERSION: ${GO_VERSION:-1.22}
        GO_ARCH: ${GO_ARCH:-amd64}

You will also notice that the docker-compose.yaml file also has the following settings:

docker-compose.yaml

    security_opt:
      - "apparmor:unconfined"
      - "seccomp:unconfined"
    cap_add:
      - SYS_PTRACE

they are necessary to allow delve to attach to the running process and debug it and should not be used in production environments.

Set up GitHub workflows

Automate your development process to minimize errors and make it faster and more cost-efficient. The create-plugin tool helps you to configure your GitHub actions workflows to help automate your development process.

The CI workflow

The CI (ci.yml) workflow is designed to lint, type check, and build the frontend and backend. It is also used to run tests on your plugin every time you push changes to your repository. The create-plugin tool helps to catch any issues early in the development process, before they become bigger problems. For more information on end-to-end testing as part of the CI workflow, refer to our documentation.

The release workflow

The release (release.yml) workflow is designed to build, test, package and sign your plugin whenever you're ready to release a new version. This automates the process of creating releases in GitHub and provides instructions for submitting the plugin to the Grafana plugin catalog.

warning

This workflow requires a Grafana Cloud API key. Before you begin, follow the instructions for generating an Access Policy token.

Storing your Access Policy token as a repository secret in GitHub

1. Access Repository Settings:

• Go to your GitHub repository.
• Navigate to the "Settings" tab.

2. In the left sidebar, click on Secrets and Variables -> Actions
3. Click on the "New repository secret" button.
4. Add Secret Information:

• Enter name for your secret - GRAFANA_ACCESS_POLICY_TOKEN.
• Paste the Access Policy Token value into the "Secret" field.

5. Click on the "Add secret" button to save the secret.

Once the secret is stored, you can access it in your GitHub Actions workflow:

release.yml

name: Release

jobs:
  release:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: grafana/plugin-actions/build-plugin@release
        with:
          grafana_token: ${{ secrets.GRAFANA_ACCESS_POLICY_TOKEN }}

In this example, the secrets.GRAFANA_ACCESS_POLICY_TOKEN variable is used to access the stored token securely within your GitHub Actions workflow. Make sure to adjust the workflow according to your specific needs and the language/environment you are working with.

Triggering the workflow

To trigger the release workflow, push a Git tag for the plugin version that you want to release:

git tag v1.0.0
git push origin v1.0.0

The compatibility check (is-compatible.yml)

The compatibility check (is-compatible.yml) workflow is designed to check the Grafana API compatibility of your plugin every time you push changes to your repository. This helps to catch potential frontend runtime issues before they occur.

The workflow contains the following steps:

1. Finding @grafana npm packages in your plugin.
2. Extracting the exported types of the specified version.
3. Comparing the differences between that version and the latest version.
4. Looking for usages of those changed APIs inside your plugin.
5. Reporting any potential incompatibilities.

Extend configurations

The .config/ directory holds the preferred configuration for the different tools used to develop, test, and build a Grafana plugin. Although you can make changes, we recommend against doing so. Instead, follow the guidance in this topic to customize your tooling configs.

danger

Do not edit the .config/ directory or extend the tooling configurations. If you attempt to do so, then you may experience issues such as failure to compile or load in Grafana. Instead of changing the files directly, follow the instructions in this topic to make advanced configurations.

Extend the ESLint config

Edit the .eslintrc file in the project root to extend the ESLint configuration:

Example:

.eslintrc

{
  // Eslint configuration provided by @grafana/create-plugin
  "extends": "./.config/.eslintrc",
  "rules": {
    "react/prop-types": "off"
  }
}

The following example can be used to disable deprecation notices.

.eslintrc

{
  // Eslint configuration provided by @grafana/create-plugin
  "extends": "./.config/.eslintrc",
  "overrides": [
    {
      "files": ["src/**/*.{ts,tsx}"],
      "rules": {
        "deprecation/deprecation": "off"
      }
    }
  ]
}

---

Extend the Prettier config

Edit the .prettierrc.js file in the project root to extend the Prettier configuration:

Example:

.prettierrc.js

module.exports = {
  // Prettier configuration provided by @grafana/create-plugin
  ...require('./.config/.prettierrc.js'),
  semi: false,
};

---

Extend the Jest config

There are two files in the project root that belong to Jest: jest-setup.js and jest.config.js.

jest-setup.js: This file is run before each test file in the suite is executed. It sets up Jest DOM for the testing library and applies some polyfills. For more information, refer to the Jest documentation.

jest.config.js: This is the Jest config file that extends the Grafana config. For more information, refer to the Jest configuration documentation.

ESM errors with Jest

If you see SyntaxError: Cannot use import statement outside a module when running Jest or npm run test see Troubleshooting.

---

Extend the TypeScript config

To extend the TS configuration, edit the tsconfig.json file in the project root:

Example:

tsconfig.json

{
  // TypeScript configuration provided by @grafana/create-plugin
  "extends": "./.config/tsconfig.json",
  "compilerOptions": {
    "preserveConstEnums": true
  }
}

---

Extend the Webpack config

Follow these steps to extend the Webpack configuration that lives in .config/:

1. Create a new Webpack configuration file

Create a webpack.config.ts file in the project root. This file extends the Webpack config provided by create-plugin.

2. Merge the Grafana config with your custom config

Use the following webpack-merge command:

webpack.config.ts

import type { Configuration } from 'webpack';
import { merge } from 'webpack-merge';
import grafanaConfig from './.config/webpack/webpack.config';

const config = async (env): Promise<Configuration> => {
  const baseConfig = await grafanaConfig(env);

  return merge(baseConfig, {
    // Add custom config here...
    output: {
      asyncChunks: true,
    },
  });
};

export default config;

The following alternative customization excludes "libs" via rules in addition to "node_modules". It also provides fallbacks that are no longer present in Webpack v5.

webpack.config.ts

import type { Configuration } from 'webpack';
import { mergeWithRules } from 'webpack-merge';
import grafanaConfig from './.config/webpack/webpack.config';

const config = async (env: any): Promise<Configuration> => {
  const baseConfig = await grafanaConfig(env);
  const customConfig = {
    module: {
      rules: [
        {
          exclude: /(node_modules|libs)/,
        },
      ],
    },
    resolve: {
      fallback: {
        crypto: require.resolve('crypto-browserify'),
        fs: false,
        path: require.resolve('path-browserify'),
        stream: require.resolve('stream-browserify'),
        util: require.resolve('util'),
      },
    },
  };
  return mergeWithRules({
    module: {
      rules: {
        exclude: 'replace',
      },
    },
  })(baseConfig, customConfig);
};

export default config;

3. Update the package.json to use the new Webpack config

Update the scripts in the package.json to use the extended Webpack configuration:

package.json

-"build": "webpack -c ./.config/webpack/webpack.config.ts --env production",
+"build": "webpack -c ./webpack.config.ts --env production",
-"dev": "webpack -w -c ./.config/webpack/webpack.config.ts --env development",
+"dev": "webpack -w -c ./webpack.config.ts --env development",