Introducing OCI Webhook Support in Argo CD: From Polling To Real-Time
summary
Argo CD adds OCI webhook support so OCI registries (GHCR, Docker Hub; ECR planned) can trigger immediate reconciliation instead of waiting the default 3-minute polling window. GHCR requires a linked GitHub repo and sends package events only for OCI media types; Docker Hub needs the query param type=DockerHub and currently lacks a vetted secret flow. Demo pushes a Helm chart tar to docker.io and shows an instantaneous sync in Argo CD 3.5 (feature lands Aug 24, 2026); GHCR support is already merged and Docker Hub merging soon.
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chapters (14)
- 0:00OCI webhook support intro
- 1:02What is OCI registry
- 3:51Argo CD OCI limits
- 5:13Polling vs real-time
- 6:39OCI webhooks for instant sync
- 8:26Supported OCI registries
- 10:53CI pipeline webhooks
- 13:01Demo setup prereqs
- 16:10Argo CD webhook config
- 19:21Push changes observe sync
- 20:27Verify app state
- 23:39Security and future
- 24:40Documentation and upcoming features
- 25:04Q&A
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