Non-Root support for loadgen image

[alluabhijeet]

Is your feature request related to a problem? Please describe.
Trying to run the easytrade application in my enterprise with these constraints : readOnlyFilesystem: true and runAsNonRoot : true.

I modified all the deployment manifests to work with these constraints, except one service : loadgen(which I am forced to run outside the cluster)

This is because the loadgen image is currently configured to run as root only

Describe the solution you'd like
Make changes to the Dockerfile to run loadgen as non-root

Describe alternatives you've considered
Tried passing --no-sandbox to the container (as per this), but it didn't work

Additional context
Logs from the container when run as non-root

docker run -it --read-only --env XDG_CACHE_HOME='/tmp/.chromium' --env XDG_CONFIG_HOME='/tmp/.chromium' --tmpfs /tmp --env EASYTRADE_URL=$URL -u 1000 europe-docker.pkg.dev/dynatrace-demoability/docker/easytrade/loadgen:latest
[2025-05-31 04:19:31+00:00][INFO]: Creating and starting [5] workers
[2025-05-31 04:19:31+00:00][pool:main][INFO]: Starting Browser Context Pool with [1] browsers
[2025-05-31 04:19:31+00:00][pool:main][INFO]: Staring [1] new browsers with TTL [3600s].
[2025-05-31 04:19:31+00:00][pool:main][WARN]: Failed to start [1/1] browsers
[2025-05-31 04:19:31+00:00][pool:main][INFO]: Browser Context Pool is now active.
[2025-05-31 04:19:31+00:00][pool:main][INFO]: Staring [1] new browsers with TTL [3600s].
[2025-05-31 04:19:31+00:00][worker:0][WARN]: Worker had error getting browser context [Error: The [main] pool has no active browsers running.]
[2025-05-31 04:19:31+00:00][worker:1][WARN]: Worker had error getting browser context [Error: The [main] pool has no active browsers running.]
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