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Developer tools · #argocd
Learn how ApplicationSet reduces boilerplate when you need many similar Argo CD Applications, with a concrete example, trade‑offs, and steps to verify the setup.
Argo CD applies resources in parallel during auto-sync unless you use sync-wave annotations. Learn how to stage namespace, deployment, and service creation with a worked example.
Application stuck in Syncing with Operation Phase Running because a pre-sync or post-sync hook never completes. Diagnose with operation state, hook pod labels, logs and annotations, then cancel the operation before fixing the source of truth in Git.
Learn how Argo CD’s ApplicationSet can auto‑generate hundreds of Applications from a single template, the trade‑offs to watch for, and how to verify the setup in a real GitOps workflow.
Learn how to enforce a deterministic sync order in Argo CD by annotating Kubernetes resources with argocd.argoproj.io/sync-wave so that ConfigMaps are applied before dependent Pods start.
Learn how to diagnose and resolve 'OutOfSync' status in Argo CD by distinguishing between manual drift, controller interference, and orphaned resources.
Use Argo CD sync waves to order resource rollout inside one Application and selective sync to recover a single failed resource without re-applying everything.
Use an Argo CD PreSync hook to run an idempotent database migration Job before your application manifests are applied, so new code never starts against an old schema.
ApplicationSets generate Argo CD Applications from one template plus a generator. Learn how the mechanism works, see a cluster-generator example, and avoid orphaned apps and broad selectors.
kubernetes
helm