Testing

The CentOS Project has some resources available for each SIG to run some CI jobs/tests for their projects. We'll document soon how to get onboarded (on request) on the CentOS CI infra platform.

We offer the following resources :

• Openshift hosted jenkins (one per project/SIG), using usual authentication from FAS/ACO
• bare-metal and/or Virtual Machines ephemeral nodes on which you can run some tests (including destructive ones), that will be automatically be reinstalled (for bare-metal) or discarded (for VMs)

Using bare-metal/Virtual Machines with Duffy client

Duffy is the middle layer running ci.centos.org that manages the provisioning, maintenance and teardown / rebuild of the Nodes (physical hardware and VMs) that are used to run the tests in the CI Cluster.

Installing and configuring duffy client

Use pip to install duffy client.

pip install --user duffy[client]

Duffy client needs the tenant's name and the tenant's API key to be able to request sessions from duffy server. If the tenant doesn't exist yet, it should be created in duffy server. Having the tenant's name and the tenant's API key, create the file .config/duffy with the following content.

client:
  url: https://duffy.ci.centos.org/api/v1
  auth:
    name: <tenant name>
    key: <API key>

Requesting a session

Before creating a session, the name of the pool is required. Check the pool available executing the command.

duffy client list-pools

Having the name of the pool, request how many sessions needed. Duffy has a limit of sessions per tenant, this information is available in the duffy server.

duffy client request-session pool=<name of the pool>,quantity=<number of sessions>

By default this command outputs a json, but it's possible to change the format to yaml or flat using --format. Under "node" key it's possible to find the node's hostname provisioned. Log in to it as root user, using ssh.

{
<...output ommited...>

"nodes": [
    {
        "hostname": "<hostname>",
        "ipaddr": "<ip address>",

<...output ommited...>
}

Retiring a session

To retire a session, the session id is required. Check the id executing.

duffy client list-sessions

When needed to retire the session execute the command.

duffy client retire-session <session id>