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FAQ.md

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Frequently Asked Questions

Q: How can I monitor the Docker Engine Host from within a container?

You will need to setup several volume mounts as well as some environment variables:

docker run --name telegraf
	-v /:/hostfs:ro
	-v /etc:/hostfs/etc:ro
	-v /proc:/hostfs/proc:ro
	-v /sys:/hostfs/sys:ro
	-v /var/run/utmp:/var/run/utmp:ro
	-e HOST_ETC=/hostfs/etc
	-e HOST_PROC=/hostfs/proc
	-e HOST_SYS=/hostfs/sys
	-e HOST_MOUNT_PREFIX=/hostfs
	telegraf

Q: Why do I get a "no such host" error resolving hostnames that other

programs can resolve?

Go uses a pure Go resolver by default for name resolution. This resolver behaves differently than the C library functions but is more efficient when used with the Go runtime.

If you encounter problems or want to use more advanced name resolution methods that are unsupported by the pure Go resolver, you can switch to the cgo resolver.

If running manually set:

export GODEBUG=netdns=cgo

If running as a service add the environment variable to /etc/default/telegraf:

GODEBUG=netdns=cgo

Q: When will the next version be released?

The latest release date estimate can be viewed on the milestones page.