sandboxes/kits: require startup commands to be idempotent#24959
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dvdksn wants to merge 1 commit intodocker:mainfrom
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sandboxes/kits: require startup commands to be idempotent#24959dvdksn wants to merge 1 commit intodocker:mainfrom
dvdksn wants to merge 1 commit intodocker:mainfrom
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Startup commands replay on every sandbox start and, with the upcoming container-restart replay support in docker/sandboxes#2541, on every container restart too. The framework can't enforce idempotency, so kit authors carry that contract themselves. Call it out in the introduction to startup commands and add a paragraph in the startup spec reference with practical guidance (existence checks, upserts, convergence). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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mdelapenya
approved these changes
May 5, 2026
ndeloof
approved these changes
May 5, 2026
craig-osterhout
approved these changes
May 5, 2026
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Summary
Document that kit startup commands must be idempotent. They run on
every sandbox start and, with the upcoming container-restart replay
support, on every container restart too.
The framework can't enforce this, so kit authors carry the contract.