[Containers] Drop local EXPOSE requirement - #33558
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Local routing uses getTcpPort() against a listening process. Dockerfile EXPOSE metadata is unused.
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Review✅ No issues found in commit Code ReviewThis code review is in beta and may not always be helpful — use your judgment. No code review issues found. ConventionsNo convention issues found. Style Guide ReviewNo style-guide issues found. CommandsOnly codeowners can run commands. Post a comment with the command to trigger it.
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🚀 Deploying Preview to Cloudflare 🚀Preview URL: https://docs-containers-local-dev-no-expose.previews.developers.cloudflare.com (commit 0a4869a)This URL reflects your latest Preview deploymentPreview Deployments by commit
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Preview URL: https://0a4869a8.preview.developers.cloudflare.com Files with changes (up to 15)
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gabivlj
approved these changes
Sep 21, 2026
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Summary
Updates the Containers local development troubleshooting section. Local
wrangler devandvite devno longer require DockerEXPOSEmetadata. The Worker connects to any listening port viagetTcpPort().Follow-up to cloudflare/workers-sdk#15711.
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