About

This repository provides Ansible playbook to deploy a Mesosphere DC/OS cluster. Developed and tested against CentOS 7 nodes running on EC2 following the Advanced Installation Guide.

The basic approach:

• setup a bootstrap node with an initial configuration describing the mesos cluster.
• the mesos master, public agent, and private agents are installed using the configuration from the bootstrap node.
• access the cluster in a web browser (ip address of master on port 80) to login (using google account)

The bootstrap node is not part of the cluster.

Nodes are grouped as bootstrap, master, public or private agent in the Ansible inventory file.

After the DCOS is deployed you can install packages from the "Universe" tab. I was able to deploy (but haven't used) the following

• arangodb3
• chronos
• flink
• grafana
• hdfs
• marathon
• mongodb
• mr-redis
• nifi
• openldap
• registry
• spark
• zeppelin

I've tested with the following number of nodes (including bootstrap)

• 6
• 16

Requirements

Python, Ansible, Boto, awscli. See requirements.txt for the frozen set and requirements-open.txt for the open set. Use a virtualenv.

Procedure

1. start a cluster (see ec2.yaml) having 6 nodes

   Note: this is hacked to work on my environment. You'll likely need to change the parameters to the ec2 module.

2. generate the inventory file

   Set ansible_ssh_host in each of the host files host_vars/mesos-0.yaml, host_vars/mesos-1.yaml, etc.

   You can use the mk-inventory

3. run prepare.yaml to prepare the nodes

4. run dcos.yaml to deploy DCOS

5. go the the IP address of the master node and login

It may take several minutes after ansible finishes running the playbooks before the cluster is available.