Fix issue 517 (zombie processes in docker containers)

[Dimokus88]

Fixing issue 517 (zombie processes in docker containers)

@andy108369 found a way to fix zombie processes in docker containers by using tail -f /dev/null instead of sleep infinity which was used before.
I changed some of the executable scripts according to his recommendation.

[andy108369]

Thank you for PR, @Dimokus88 !
Clarification: both "sleep infinity" & "tail -f /dev/null" would work. They are interchangeable.

The way it works is the added proccess manager - tini, which handles zombie processes now.
More info on how and why zombie proccesses occur, with the examples how tini manages them, is here #565 (comment)

@Dimokus88 before I merge, have you tested each of these deployments?

[andy108369]

Looks like you've missed to add tini itself, i.e.

replace /usr/local/bin/init.sh to the relevant though

# Use tini as an init system to manage orphaned child processes, ensuring they
# don't become zombie (defunct) processes by reaping (cleaning up) them when
# their parent process doesn't.
# Tini will also correctly handle signals like SIGTERM (15), allowing child
# processes to terminate gracefully within the allotted time, rather than
# being forcefully killed with SIGKILL after a 15-second timeout.
ADD https://github.com/krallin/tini/releases/download/v0.19.0/tini /tini
RUN chmod +x /tini
ENTRYPOINT ["/tini", "--", "/usr/local/bin/init.sh"]

CMD ["tail", "-f", "/dev/null"]

[Dimokus88]

Thx @andy108369 I was sure that it is present in ubuntu by default.
I will double check and reopen the PR