​Title of the Experiment

4. Configure and Initialize

omni comes with a script, readyToLogin which finds the login information for nodes in your slice.

As of omni version 2.8, it has an --ansible-inventory flag which generates the Ansible inventory, which is a flat file which tells ansible the name and login information for your nodes.

On your local machine:

readyToLogin MYSLICE --useSliceAggregates --ansible-inventory -o
cat inventory
ansible all  -m ping -i inventory

Here is example output of running these commands:

$ readyToLogin ansible --useSliceAggregates --ansible-inventory -o
Host info saved in inventory file: /Users/jdoe/projects/GENI/hellogeni/inventory

$ cat inventory
client  ansible_ssh_host=pc3.instageni.clemson.edu  ansible_ssh_port=33850
server  ansible_ssh_host=pcvm3-6.instageni.clemson.edu

$ ansible all  -m ping -i inventory
client | success >> {
    "changed": false,
    "ping": "pong"
}

server | success >> {
    "changed": false,
    "ping": "pong"
}

5. Execute Experiment

6. Analyze Experiment

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Introduction

Next: Finish