Running Mesos Cluster with Vagrant

Setting up the cluster
Using the cluster
Vagrant cheat sheet

The local cluster will have three nodes:

graph TB; subgraph mesos-node-0 - 10.141.141.10 Zookeeper MarathonLB[Marathon LB / HAProxy] Marathon Chronos MesosMaster[Mesos Master] MesosAgent0[Mesos Agent #0] MesosDNS[Mesos DNS] Zookeeper --- Marathon Zookeeper --- MesosMaster MarathonLB --- Marathon Marathon --- MesosMaster Chronos --- MesosMaster MesosMaster --- MesosAgent0 end subgraph mesos-node-1 - 10.141.141.11 Zookeeper MesosMaster --- MesosAgent1[Mesos Agent #1] end subgraph mesos-node-2 - 10.141.141.12 MesosMaster --- MesosAgent2[Mesos Agent #2] end

Setting up the cluster

First, bring up the local cluster VMs:

$ vagrant up

Then install and configure the DCOS CLI:

$ pip install dcoscli
$ dcos config set core.email no-auth@example.com
$ dcos config set core.reporting false
$ dcos config set core.mesos_master_url http://mesos:mesos@10.141.141.10:5050
$ dcos config set marathon.url http://mesos:mesos@10.141.141.10:8080
$ dcos config set package.cache ~/.dcos/cache
$ dcos config set package.sources "https://github.com/mesosphere/universe/archive/version-1.x.zip" ]'

Finally, add the following to /etc/hosts if you plan to deploy example apps descriptors located inside the marathon directory:

# Proxied domains should point to the primary node
10.141.141.10   nginx.mesos.dev
# Mesos node hostnames
10.141.141.10   mesos-node-0.mesos.dev
10.141.141.11   mesos-node-1.mesos.dev
10.141.141.12   mesos-node-2.mesos.dev

Using the cluster

The main user interfaces are:

And the default username and password is mesos / mesos.

To deploy applications use the DCOS CLI and the Marathon task descriptors in the marathon folder:

$ dcos marathon app add marathon/nginx.json

Check that nginx is running:

$ dcos marathon task list
APP        HEALTHY          STARTED               HOST      ID
/nginx       True   2015-11-12T04:04:08.872Z  mesos-node-0  nginx.6bf52812-88f2-11e5-a52e-0242bb5202d1

Once the application has been started, open https://nginx.mesos.dev/.

To undeploy nginx run:

$ dcos marathon app remove nginx

See dcos marathon -h for more commands.

Vagrant cheat sheet

The following commands gives a quick intro to Vagrant

vagrant ssh mesos-node-0   # SSH into a machine
vagrant provision          # Rerun Ansible scripts
vagrant halt               # Stop all cluster VMs
vagrant destroy            # Physically delete VM files

For additional help run vagrant help.