Actual LimitNOFILE varies greatly between the systems as it depends on the
systemd version and the go version used to build Teleport. The goal of this
commit is to run Teleport in the same setup, regardless of the distro nor
Teleport version.
New systemd defaults are 1024:524288, and starting with go 1.19, go process can
increase their soft limit up to the hard limmit dynamically. Old systemd
versions don't suppoprt `soft:hard` notation and old go versions don't
automatically increase up to the hard limit. For this reasons, the most
compatible setting is to set softlimit=hardlimit=524288.
Shellcheck is a linter for shell scripts. Since we have quite a few of
those for release packaging and examples, we'll benefit from an extra
set of (robot) eyes.
Note: I disabled https://github.com/koalaman/shellcheck/wiki/Sc2086 to
make this PR smaller. That specific check is for the most frequent
mistake in our scripts - not quoting env var expansions. I'll do a
separate PR cleaning those up.
`build.assets/pkg` is no longer used and was removed.
Demo monitoring stack sets up example monitoring
infrastructure:
* All nodes, auth servers and proxies
run telegraf alongside them, polling prometheus
diagnostic endpoints.
* Telegraf sends the data to InfluxDB database
* Grafana sets up cluster health dashboard
watching key teleport metrics - numbers of goroutines,
number of active sessions, file descriptors and so on.
* Add prometheus endpoint to expose system stats
* Add heealthz endpoint
* Add gops endpoint for real time troubleshooting
* Deprecate httprof endpoint
Hugo Shaka