Create a AWS HA Cluster with ansible, terraform , mesos, zk, consul, marathon , chronos and docker in CentOS 7

To Launch this cluster:

Pre Launch: Install terraform and ansible

1. Create a terraform.tfvars file with the following attributes and save.

access_key = ""
secret_key = ""
ssh_key_name = ""
ssh_key = ""

2. call terraform apply to launch the cluster .
3. python tf-to-inventory.py will creare a host file for ansible to use.
4. ansible-playbook -i hosts init.yml --private-key privatekeyfile

This will launch your cluster in AWS EC2. You could then browse the mesos, marathon, chronos url in the following port

https://ec2-xx-xxx-xxx-xxx.us-west-1.compute.amazonaws.com:5050
https://ec2-xx-xxx-xxx-xxx.us-west-1.compute.amazonaws.com:8080

For viewing the consul url you would have to create a tunnel to one of the masters:

ssh -i pathtoprivatekey -N -f -L 8500:localhost:8500 [email protected]

Once the tunnel is created you could view the consul ui from your laptop at localhost

You can now test adding a docker container to marathon using the information provided below. launch-docker-container-on-mesosphere

You can now check the status of the container from the consul UI.

##Component Installed:## ** Control Nodes ** ( Default 3 )

• Mesos Master
• Zookeeper
• Consul Server
• Consul UI
• Marathon
• Chronos

** Worker Nodes ** (Default 3)

• Mesos Slave
• Consul agent (client)
• Docker engine

1. Add ngnix or haproxy for load balancing
2. Add consul template to update load balancers
3. Add ELK stack for docker aggregation logs
4. Add security to harden the system