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sagitchu
20 lines
931 B
Markdown
20 lines
931 B
Markdown
# 028 - Sync Forward Ports On Tunnel Entry Change
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## Goal
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When a tunnel's entry nodes change, automatically keep all forwards under that tunnel aligned by rebuilding `forward_port` rows to match the latest entry node set.
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## Scope
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- Backend only: update tunnel mutation flow to sync forward entry mappings.
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- Preserve existing forward port and bind IP behavior:
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- Keep the existing forward port (choose the current min port in `forward_port`).
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- Preserve `in_ip` only when the tunnel has a single entry node; clear `in_ip` for multi-entry tunnels.
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## Checklist
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- [x] Capture old entry node IDs before tunnel update commits.
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- [x] After commit, compare old/new entry node sets.
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- [x] If changed, rebuild `forward_port` for all forwards in the tunnel.
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- [x] Run `go test ./...` in `go-backend`.
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## Notes
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- Runtime redeploy/downlink is handled elsewhere; this change focuses on DB-level consistency of forward entry mappings.
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