Everything, Everywhere All at Once: The Infinite Potential of Application Sets and Matrix Generators
summary
Shows how Argo CD ApplicationSets combine matrix+merge generators and plugins to spawn thousands of app manifests (one platform hit ~5,000 applications, experiment produced ~2,000 instances). Demonstrates vcluster/nested Argo CD provisioning, Helm-chart scanning to deploy every chart, and autosync+prune behavior. Records accidents: GitHub API rate limits (15,000/hr, 250/sec) from the pull request generator, endless creation caused by a randomAlpha template function, and Kubernetes resource exhaustion (out-of-pods, ~1,000 pod limits). Offers deterministic SHA naming and counters to control recursion.
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chapters (8)
- 0:00Introduction
- 2:52Argo CD applications and sets
- 5:19GitHub API rate limit accident
- 9:13Infinite potential of sets
- 11:42Recursive set generation
- 17:19Enterprise Helm with sets
- 21:41Lessons learned with sets
- 23:07Closing
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