README

Description

• This Repository is developed to build a nomad cluster with consul and docker driver.
• The VMs are built using vagrant and provisioned using Ansible.
• The Solution creates 1 Master and 2 client.
• For a totaly high available Cluster just uncomment the other 2 Master nodes in Vagrantfile and in inventory

requirement

• Virsualbox https://www.virtualbox.org/wiki/Downloads
• vagrant https://www.vagrantup.com/downloads
• Minimum 4 cpu and 4G RAM for the Single node master

How to use the Repo:

• clone the repo

git clone https://github.com/open-i-gmbh/nomad-cluster.git

• Provision the evviroment

vagrant up  #Build the vms

vagrant ssh [master1|node1|node2]  #to connect via ssh to any vm

ansible-playbook -i ./inventory playbook.yml   #to Provision the enviroment

## connect to the master node and check the nomad status as following:

nomad server members
nomad status
nomad node status

• deploy a test Job

cd /vagrant/
nomad run webapp.nomad  ### To submit the Job
nomad status demo-webapp  ### Check the Job status

nomad run nginx.nomad   ### Deploy nginx to use as loadbalancer 'reverse proxy'
nomad status nginx
nomad alloc fs 1eb nginx/local/load-balancer.conf  ### Check the registerd backend servers

curl nginx.service.consul:8080

Connect to Nomad webui and consul webui and check the deployment status

• http://192.168.50.10:8500/ui/dc1/services
• http://192.168.50.10:4646/ui/jobs

Ansible provisioning mit vagrant

• The Ansible can also provisioned with vagrant.
• To do that just uncomment the last part in the Vagrantfile and no need to run ansible seperatly.