JupyterHub/Dask Gateway: on-hub BinderHub image builds + run-scoped clusters (PRD LCR-174; LCR-176 A+B)#162

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jupyterhub-dask-gateway

Commits on Jul 21, 2026

Port Dask Gateway groundwork from gateway-cluster-support + LCR-176 Part A

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Gateway lifecycle per PRD: create run-scoped clusters, cull on exit

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lc build on the hub: real image builds through the BinderHub service

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Docs: create/cull lifecycle + BinderHub build path (design doc §8)

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lc init: GitHub connect step (device-flow auth, create/connect repo)

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lc init/run: kill the venv-shadowing failure class; recipe-contract docs

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Scaffold Containerfile: passwd entry for uid 1000

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Simplify: gateway is create/cull only; hub scratch defaults to $HOME

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Add GCP Cloud Build as the preferred on-hub build backend

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