First do a research

Are there more up2date alternatives to docker / Kubernetes?

Input from the community: Probably not for Kubernetes. An docker alternative might be containerd.

Preparation in core

• make install-and-update binary paths (php/mysql) overwritable via environment variables
• configuration handling via environment? → more research needed

Dependencies

FrontendMessageBus

• As separate container, easily managable with the already existing update.sh on the server to create there our message bus instance.

Okapi and Languagetool

• already as docker images, but in which version?

pdfconverter container

• is a container command reachable from another container?
• No: https://stackoverflow.com/questions/50066698/execute-another-containers-command-in-another-container-docker
  • Solutions: Wrap with a network service?
    https://stackoverflow.com/questions/58920615/how-to-connect-to-netcat-running-in-docker-container

Static file serving

In the docker image we can take symlinks for granted and therefore skip ZendFramework for serving static files of plugins.

Orchestration of containers

Via docker-compose, is looking straight forward and there are tools to convert to the obviously more complicated Kubernetes.

Placement of the docker files

In our translate5 github organization as project "docker", so translate5/docker.

The docker projects maintained officially by docker itself, are using a templating engine for the Dockerfiles, I could get not find out which one yet.

Resources

The following Docker projects / files were used as inspiration:

• https://github.com/nextcloud/docker/blob/master/19.0/apache/Dockerfile
• https://github.com/docker-library/wordpress/blob/d447e82d5e847f0b06d53214b0119f9f9f67340a/php7.4/apache/docker-entrypoint.sh
• https://github.com/wikimedia/mediawiki-docker/blob/fc6333cecb419c11e84b8c79b547eef6dfc54b17/1.34/Dockerfile

Ensure optimal setup for best perfomance

The combination of analysis, autoqa and termtagging is sometimes quite slow for big tasks.

We need to develop a docker-based concept in Confluence for the public for optimal setup for speed for translate5, especially for the import and implement this in our cloud.