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I've installed mesos-dns in our cluster and is running ok. We can check the domain of the apps installed in marathon but I would like to know in which host is installed the marathon itself. If I do a dig to marathon.domain is not resolving anything.

According to the doc of mesos-dns: "A records ({framework}.domain) and SRV records (_framework._tcp.{framework}.domain) - for every known Mesos master"

Thanks.

Jaap
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Gorka
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2 Answers2

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It's marathon.mesos unless you've used a different TLD. The Marathon scheduler runs on the Master.

Michael Hausenblas
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  • returns: ;; ANSWER SECTION: marathon.mesos. 60 IN A 127.0.0.1 but not the IP of the master. – Gorka Jan 25 '17 at 16:03
  • Sorry, I was talking about a DC/OS setup. Did you execute the `dig` command on the Master? – Michael Hausenblas Jan 25 '17 at 16:06
  • In the master host I have not added the nameserver of the mesos-dns. the mesos-dns nameserver is added only in the slaves (one entry in etc/resolv.conf). According to the doc I think that is not necessary to add in the masters. I am not using DC/OS setup. – Gorka Jan 25 '17 at 16:10
  • So, anyone that could help me please? – Gorka Jan 26 '17 at 06:53
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You can use my mesosdns-resolver bash script to get the endpoint from Mesos DNS.

You can use it like:

mesosdns-resolver.sh -sn <service-name>.marathon.mesos -s <IP_ADDRESS_OF_MESOS_DNS_SERVER>
Devesh Chanchlani
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