playbook: Setup limits
For now nofile hard limit is set to 1048576.
The changes were merged into master. The source branch has been removed.
So, as we already now, setting hard limit is enough, applications by themselves shall raise soft limit to hard limit (eg. Caddy), which shall be fixed to do so, as @vpelletier provided info elsewhere:
ulimit -n $(ulimit -Hn)
in its wrapper.
The number was taken for Debian 10.
I never saw this
+1 for merge
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