[{"data":1,"prerenderedAt":16},["ShallowReactive",2],{"blog-tag-en-airgap":3},[4],{"path":5,"title":6,"description":7,"date":8,"tags":9},"\u002Fblog\u002Fen\u002Fk3s-spegel-embedded-registry-mirror-airgap-node-join","K3s's Embedded Registry Mirror Was Supposed to Just Work. Then a New Edge Node Couldn't Pull Images","K3s's embedded registry mirror (Spegel) is supposed to work cluster-wide, but a newly added edge node alone failed to pull images. The cause: an undistributed registries.yaml, credential drift, and a known containerd 2.0 bug. Here's the correct distribution workflow for air-gapped operations.","2026-10-30",[10,11,12,13,14,15],"k3s","kubernetes","spegel","registry-mirror","airgap","edge-computing",1793798806014]