grafana/README.md

# [Grafana](https://grafana.com) [![Circle CI](https://circleci.com/gh/grafana/grafana.svg?style=svg)](https://circleci.com/gh/grafana/grafana) [![Go Report Card](https://goreportcard.com/badge/github.com/grafana/grafana)](https://goreportcard.com/report/github.com/grafana/grafana) 

[Website](https://grafana.com) |
[Twitter](https://twitter.com/grafana) |
[Community & Forum](https://community.grafana.com)

Grafana is an open source, feature rich metrics dashboard and graph editor for
Graphite, Elasticsearch, OpenTSDB, Prometheus and InfluxDB.

<!---
![](http://docs.grafana.org/assets/img/features/dashboard_ex1.png)
-->

## Installation

Head to [docs.grafana.org](http://docs.grafana.org/installation/) for documentation or [grafana.com/get](https://grafana.com/get) to download the latest release.

## Documentation & Support

Be sure to read the [Getting Started](http://docs.grafana.org/guides/gettingstarted/) guide and the other feature guides.

## Run from master

If you want to build a package yourself, or contribute - here is a guide for how to do that. You can always find
the latest master builds [here](https://grafana.com/grafana/download).

### Dependencies

- Go (Latest Stable)
- Node.js LTS
  - yarn [`npm install -g yarn`]

### Get the project

**The project located in the go-path will be your working directory.**

```bash
go get github.com/grafana/grafana
cd $GOPATH/src/github.com/grafana/grafana
```

### Run and rebuild on source change

#### Backend

To run the backend and rebuild on source change:

```bash
make run
```

#### Frontend
Install front-end dependencies first:

```bash
yarn install --pure-lockfile
```

Rebuild on file change, and serve them by Grafana's webserver (http://localhost:3000):

```bash
yarn start
```

Build the assets, rebuild on file change with Hot Module Replacement (HMR), and serve them by webpack-dev-server (http://localhost:3333):

```bash
yarn start:hot
# OR set a theme
env GRAFANA_THEME=light yarn start:hot
```

_Note: HMR for Angular is not supported. If you edit files in the Angular part of the app, the whole page will reload._

Run tests and rebuild on source change:

```bash
yarn jest
```

**Open grafana in your browser (default: e.g. `http://localhost:3000`) and login with admin user (default: `user/pass = admin/admin`).**

### Building

#### The backend

```bash
go run build.go setup
go run build.go build
```

#### Frontend assets

_For this you need Node.js (LTS version)._

```bash
yarn install --pure-lockfile
```

### Building a Docker image

There are two different ways to build a Grafana docker image. If your machine is setup for Grafana development and you run linux/amd64 you can build just the image. Otherwise, there is the option to build Grafana completely within Docker.

Run the image you have built using: `docker run --rm -p 3000:3000 grafana/grafana:dev`

#### Building on linux/amd64 (fast)

1. Build the frontend `go run build.go build-frontend`.
2. Build the docker image `make build-docker-dev`.

The resulting image will be tagged as `grafana/grafana:dev`.

#### Building anywhere (slower)

Choose this option to build on platforms other than linux/amd64 and/or not have to setup the Grafana development environment.

1. `make build-docker-full` or `docker build -t grafana/grafana:dev`.

The resulting image will be tagged as `grafana/grafana:dev`.

Notice: If you are using Docker for MacOS, be sure to set the memory limit to be larger than 2 GiB (at docker -> Preferences -> Advanced), otherwise `grunt build` may fail.

## Development

### Dev config

Create a custom.ini in the conf directory to override default configuration options.
You only need to add the options you want to override. Config files are applied in the order of:

1. grafana.ini
1. custom.ini

In your custom.ini uncomment (remove the leading `;`) sign. And set `app_mode = development`.

### Running tests

#### Frontend

Execute all frontend tests:

```bash
yarn test
```

Write and watch frontend tests:

- Start watcher: `yarn jest`.
- Jest runs all test files that end with the name ".test.ts".

#### Backend

```bash
# Run Golang tests using sqlite3 as database (default)
go test ./pkg/...
```

##### Running the MySQL or Postgres backend tests:

Run these by setting `GRAFANA_TEST_DB` in your environment.

- `GRAFANA_TEST_DB=mysql` to test MySQL
- `GRAFANA_TEST_DB=postgres` to test Postgres

Follow the instructions in `./devenv` to spin up test containers running the appropriate databases with `docker-compose`
- Use `docker/blocks/mysql_tests` or `docker/blocks/postgres_tests` as appropriate.

```bash
# MySQL
# Tests can only be ran in one Go package at a time due to clashing db queries. To run MySQL tests for the "pkg/services/sqlstore" package, run:
GRAFANA_TEST_DB=mysql go test ./pkg/services/sqlstore/...

# Or run all the packages using the circle CI scripts. This method will be slower as the scripts will run all the tests, including the integration tests.
./scripts/circle-test-mysql.sh
```

```bash
# Postgres
# Tests can only be ran in one Go package at a time due to clashing db queries. To run Postgres tests for the "pkg/services/sqlstore" package, run:
GRAFANA_TEST_DB=postgres go test ./pkg/services/sqlstore/...

# Or run all the packages using the circle CI scripts. This method will be slower as the scripts will run all the tests, including the integration tests.
./scripts/circle-test-postgres.sh
```

#### End-to-end

Execute all end-to-end tests:

```bash
yarn e2e-tests
```

Execute all end-to-end tests using using a specific url:

```bash
ENV BASE_URL=http://localhost:3333 yarn e2e-tests
```

Debugging all end-to-end tests (BROWSER=1 starts the browser and SLOWMO=1 delays each puppeteer operation by 100ms):

```bash
ENV BROWSER=1 SLOWMO=1 yarn e2e-tests
```

### Data source and dashboard provisioning

[Here](https://github.com/grafana/grafana/tree/master/devenv) you can find helpful scripts and docker-compose setup
that will populate your dev environment for quicker testing and experimenting.

## Contribute

If you have any ideas for improvement or have found a bug, do not hesitate to open an issue.
And if you have time, clone this repo and submit a pull request to help me make Grafana the kickass metrics and devops dashboard we all dream about!

Read the [contributing](https://github.com/grafana/grafana/blob/master/CONTRIBUTING.md) guide then check the [`beginner friendly`](https://github.com/grafana/grafana/issues?q=is%3Aopen+is%3Aissue+label%3A%22beginner+friendly%22) label to find issues that are easy and that we would like help with.

## Plugin development

Checkout the [Plugin Development Guide](http://docs.grafana.org/plugins/developing/development/) and checkout the [PLUGIN_DEV.md](https://github.com/grafana/grafana/blob/master/PLUGIN_DEV.md) file for changes in Grafana that relate to plugin development.

## License

Grafana is distributed under [Apache 2.0 License](https://github.com/grafana/grafana/blob/master/LICENSE).