oinker

Oinker on Marathon on DC/OS

This example runs Oinker-Go on Marathon on DC/OS Vagrant with Cassandra-Mesos and Marathon-LB.

Install DC/OS

1. Follow the dcos-vagrant setup steps to configure your installation.

2. Use vagrant to deploy a cluster with 4 private agent nodes and 1 public agent node (requires 10GB free memory):

   vagrant up m1 a1 a2 a3 a4 p1 boot
   

3. Wait for DC/OS to come up. Check the dashboard: http://m1.dcos/.

4. Install the DC/OS CLI by following the instructions on the DC/OS Dashboard

Install Cassandra

1. Configure Cassandra with lower memory usage than default:

   cat >/tmp/cassandra.json <<EOF
   {
       "nodes": {
           "cpus": 0.5,
           "mem": 512,
           "disk": 4096,
           "heap": {
               "size": 1024,
               "new": 100
           },
           "count": 1,
           "seeds": 1
       }
   }
   EOF
   

2. Install cassandra:

   dcos package install --options=/tmp/cassandra.json cassandra --yes
   

3. Wait for the cassandra framework to deploy 3 executors and 3 servers (takes 5m+). Check the Mesos UI: http://m1.dcos/mesos.

Add Multiverse Package Repository

Marathon-LB is in the Multiverse repo. So the Multiverse must be added to the DC/OS CLI config.

See the DC/OS CLI docs on how to add the multiverse repo.

Install Marathon-LB

1. Configure marathon-lb with lower memory usage than default:

   cat >/tmp/marathon-lb.json <<EOF
   {
       "marathon-lb": {
           "mem": 256
       }
   }
   EOF
   

2. Install marathon-lb:

   dcos package install --options=/tmp/marathon-lb.json marathon-lb --yes
   

3. Wait for the marathon-lb framework to deploy 1 task. Check the Mesos UI: http://m1.dcos/mesos.

Install Oinker

1. Create the Oinker app:

   dcos marathon app add examples/oinker/oinker.json
   

2. Wait for Marathon to deploy 3 app instances.

   dcos marathon app show oinker | jq -r '"\(.tasksHealthy)/\(.tasksRunning)/\(.instances)"'
   

3. Visit the load-balanced endpoint in a browser: http://oinker.acme.org/