Add Dockerfile for deploying the application

[jekabs-karklins]

This commit adds a gitlab-ci, which builds daqlite binaries and publishes them as tar archive and as a docker container.

The Dockerfile sets up a Ubuntu 22.04 environment with necessary packages such as tightvncserver, xfce4, qtcreator, and vim-tiny. The Dockerfile_entrypoint.sh script is included to configure the VNC server and startup script.

Tagging a commit will produce docker image with the tag e.g. "2.0" or "2.1.beta"

[jekabs-karklins]

@tbukovics I have added the
x11-xserver-utils

But unfortunately I still get an error
RandR extension missing
When trying to change resolution after the boot.

I have added an optional parameter to for the container
VNC_RESOLUTION
that we can add in the docker compose
e.g.
environment:
- DAQLITE_BROKER=-b kafka2:9092
- DAQLITE_PRODUCTION=true
- VNC_PASSWORD=<vnc_password>
- VNC_RESOLUTION=1920x1200 # Increase resolution for better view

[tbukovics]

I corrected the entrypoint, there was an necessary RUN.

Please add a ci pipeline for gitlab do build daqlite and if it's good then create and deploy container as latest

[jekabs-karklins]

@tbukovics
I have modified Dockerfile to also do the actual build of the binaries
And added gitlab-ci that invokes the dockerfile and publishes once done.

It is quiet slow (~10 min), and could be optimized by splitting into two images with one that does not change often. but that can be done in a separate task if needed.

I have also setup the synchronization to GitLab. So once this is merged the same flow as we have for EFU should work.

[tbukovics]

This is not exactly what I expected to have, you build daqlite product when you create the docker file, and we would like to have a simplified pipeline in gitlab which:

• builds the daqlite binary on ubuntu
• if build success, then:
  • publish tar file for ubuntu
  • create and publish docker container

Please also do not forget the scripts and config folders from the container

[jekabs-karklins]

We have something like this now