druid/distribution/docker/README.md

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## Build

From the root of the repo, run following command:

```bash
DOCKER_BUILDKIT=1 docker build -t apache/druid:tag -f distribution/docker/Dockerfile .
```

### Building images on Apple M1/M2
To build images on Apple M1/M2, you need to follow the instructions in this section.

1. build Druid distribution from the root of the repo
   ```bash
   mvn clean package -DskipTests -Pdist
   ```
2. build target image
   ```
   DOCKER_BUILDKIT=1 docker build -t apache/druid:tag -f distribution/docker/Dockerfile --build-arg BUILD_FROM_SOURCE=false .
   ```

## Run

1. Edit `distribution/docker/docker-compose.yml` file to change the tag of Druid's images to the tag that's used in the 'Build' phase above.
2. Edit `environment` file to suite if necessary.
3. Run:
    ```bash
    docker compose -f distribution/docker/docker-compose.yml up
    ```

## MySQL Database Connector

This image contains solely the postgres metadata storage connector. If you
need the mysql metadata storage connector, you can use Dockerfile.mysql to add
it to the base image above.

```bash
docker build -t apache/druid:tag-mysql --build-arg DRUID_RELEASE=apache/druid:tag -f distribution/docker/Dockerfile.mysql .
```

where `druid:tag` is the version of Druid image to use as the base.