docker/README.md

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This module contains a number of Dockerfiles to ease testing of
Avatica clients against a known-server.

## Docker

`src/main/docker` contains a number of Dockerfiles and Docker-compose
configuration files to launch a standalone-Avatica server. Maven automation
exists for the base Docker image "avatica-server" which can be invoked with
the "-Pdocker" Maven profile.

The other Dockerfiles must be built by hand.

### Provided Images

A number of Dockerfiles for different databases are provided. Presently, they include:

* [HyperSQL](https://github.com/apache/calcite-avatica/tree/main/docker/src/main/docker/hypersql)
* [MySQL](https://github.com/apache/calcite-avatica/tree/main/docker/src/main/docker/mysql)
* [PostgreSQL](https://github.com/apache/calcite-avatica/tree/main/docker/src/main/docker/postgresql)

## Docker Hub

`src/main/dockerhub` contains a copy of the same `avatica-server` Dockerfile
that is present in `src/main/docker` that is designed to be used with the
automation around publishing Docker images to the Apache Docker Hub account.

It is not expected that users would interact with this Dockerfile.