build: preserve shared clients across linked target completion - #4073
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tonistiigi merged 1 commit intoSep 10, 2026
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Create shared clients with the enclosing build context so completing one linked target doesn't cancel the Kubernetes connection still used by its siblings. Signed-off-by: CrazyMax <1951866+crazy-max@users.noreply.github.com>
tonistiigi
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Sep 10, 2026
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fixes #4063
With the Kubernetes driver and
loadbalance=random, linked Bake targets share a client so they reach the same BuildKit instance. That client was created with one target'serrgroupcontext, which is canceled when the target finishes, even on success. Because the Kubernetes exec connection uses that context, completing one target could disconnect siblings still building through the shared client.Create the shared client with the enclosing build context so its connection remains alive until the overall build completes or is canceled.