ApplicationSets extend Argo CD with templating: generate multiple applications from a single definition. Use cases: multi-cluster deployment (one set definition, deployed to 10 clusters), multi-tenant SaaS (one set per customer, 100+ applications), and environment-based rollout (dev/staging/prod from single source). Advanced practitioners design ApplicationSet strategies, integrate with external data sources (APIs, Git), and implement progressive deployment patterns. Salary impact: $130k-190k for engineers who scale deployment platforms.
ApplicationSets extend Argo CD with a template-based approach to application deployment. Instead of manually creating 100 Argo CD Application manifests, you write one ApplicationSet with a generator, and it creates applications dynamically. Generators include: List (static values), Cluster (per cluster deployment), Git (per branch/tag), Matrix (combinations), and external APIs. This enables powerful multi-cluster, multi-tenant, and multi-environment deployments.
| Region | Junior | Mid | Senior |
|---|---|---|---|
| USA | $100k | $155k | $230k |
| UK | £75k | £115k | £175k |
| EU | €80k | €120k | €185k |
| CANADA | C$110k | C$170k | C$255k |
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