HPC: Test Ansible Playbook With Molecule – From Manual Vagrant to Automated CI/CD
· 10 min read
Testing Ansible playbooks for HPC clusters is challenging. You can manually spin up VMs with Vagrant, but debugging issues across controller and worker nodes takes time. Instead, Molecule provides a repeatable, automated testing framework that validates your playbook configuration before deployment. This post shows how to transition from manual Vagrant testing to Molecule, and then integrate it into GitHub Actions CI/CD.