Using Tango docker containers

Using Tango docker containers#

audience:developers lang:all

In this section we describe how one can test newly developed tango device server using docker containers.

Tango docker containers provide a lightweight solution for deploying tango, especially useful for local workstation development.

To get info on how to install docker on your machine please refer to the docker documentation.

Once docker is installed one can pull docker images with pre-installed tango.

Tango docker containers#

SKAO provides several docker containers for Tango development and deployment, including but not limited to:

  • ska-tango-images-tango-db: a (mysql-compatible) mariadb container with the Tango schema

  • ska-tango-images-tango-cpp: a container with core Tango libraries and dependencies that can run the DatabaseDS Device Server

  • ska-tango-images-rest-server: a Tango REST server

  • ska-tango-images-tango-test: the well-established TangoTest device server

The sources for these docker images are hosted and maintained on the SKAO gitlab: ska-telescope/ska-tango-images

These container images are hosted on SKAO artefact repository: https://artefact.skao.int. At the moment they cannot be browsed for via the repository website, however, it is possible to search for images at the SKAO Harbor service: https://harbor.skao.int/. Just enter ska-tango-image in the search box and Harbor will list all images that SKAO provides. The images can must be pulled with the prefix artefact.skao.int/. SKAO also provide a catalogue of images which can be viewed here: https://developer.skao.int/projects/ska-tango-images/en/stable/. This catalogue contains basic usage instructions for each image.

Tango docker stack#

The easiest way to setup the whole stack on a local development/test computer is to use docker compose. The SKAO provides How-To guides for spinning up different Tango configurations using docker compose.

For example, this guide describes how to start a Tango database and Tango RestServer using the images provided by SKAO and docker compose.

More guides are available here.