Who's testing your infra?
“When deploying and administering large infrastructures, it is still common to think in terms of individual machines rather than view an entire infrastructure as a combined whole. This standard practice creates many problems, including labor-intensive administration, high cost of ownership, and limited generally-available knowledge or code usable for administering large infrastructures.”— Steve Traugott and Joel Huddleston
Server infrastructure has traditionally lagged far behind our development practices in terms of code quality, testing, continuous integration and continuous development.
When you write your Chef recipes or Puppet manifests or any other CM, you are coding, and every code is prone to defects. All of us understand the benefits of test-driving the application code. The same applies to your infrastructure code. Testing becomes even more significant in case of deployments spanning large clusters of nodes.
Test-driving allows the infrastructure teams to have confidence that their configuration changes are being applied as intended across many different systems, and having the intended effect. This allows the whole system to be trusted, and then updated without fear for introducing breaking changes or otherwise causing instability.
The objective is to cover agile lifecycle of infrastructure code and provide a quick demo of how to test drive infrastructure management code.
Outline/structure of the Session
- Test Driven Infrastructure: why, when and how?
- Various testing strategies: Unit testing, BDD, a/c testing, semantic monitoring
- QAing infra stories
- Demo of a working example that depicts testing, CI and CD for Infrastructure scripts
- Understand the nuances of TDI, the value it adds
- Explore some tests for their infrastructure scripts
Architects, Project Managers, QA-managers, Developers, Devops, QA, Testers
schedule Submitted 2 years ago
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