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Replace mapdns with daemon DNS

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Serve daemon-managed .vm names directly from bangerd on 127.0.0.1:42069 instead of shelling out to mapdns. This keeps DNS state tied to VM lifecycle and lets the daemon rebuild records from running VMs after startup or reconcile.

Add a small in-process authoritative DNS server, register and remove records from the VM start/stop/delete paths, and show the listener in daemon status. Remove the mapdns config and preflight surface, stop helper-flow DNS publishing in customize.sh and interactive.sh, drop dns.sh from the runtime bundle, and update docs/tests for the new local-resolver integration model.

Validated with GOCACHE=/tmp/banger-gocache go test ./..., GOCACHE=/tmp/banger-gocache make build, and bash -n customize.sh interactive.sh.
This commit is contained in:
Thales Maciel 2026-03-17 15:49:35 -03:00
parent 430f66d5dd
commit 0a0b0b617b
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GPG key ID: 33112E6833C34679
24 changed files with 576 additions and 278 deletions
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12
go.mod
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@ -8,6 +8,7 @@ require (
github.com/charmbracelet/lipgloss v0.5.1-0.20220407020210-a86f21a0ae43
github.com/firecracker-microvm/firecracker-go-sdk v1.0.0
github.com/mattn/go-isatty v0.0.20
github.com/miekg/dns v1.1.72
github.com/pelletier/go-toml v1.9.5
github.com/sirupsen/logrus v1.9.4
github.com/spf13/cobra v1.8.1
@ -59,10 +60,13 @@ require (
github.com/vishvananda/netns v0.0.0-20210104183010-2eb08e3e575f // indirect
go.mongodb.org/mongo-driver v1.8.3 // indirect
golang.org/x/exp v0.0.0-20250620022241-b7579e27df2b // indirect
golang.org/x/net v0.0.0-20220127200216-cd36cc0744dd // indirect
golang.org/x/sys v0.34.0 // indirect
golang.org/x/term v0.0.0-20210927222741-03fcf44c2211 // indirect
golang.org/x/text v0.3.7 // indirect
golang.org/x/mod v0.31.0 // indirect
golang.org/x/net v0.48.0 // indirect
golang.org/x/sync v0.19.0 // indirect
golang.org/x/sys v0.39.0 // indirect
golang.org/x/term v0.38.0 // indirect
golang.org/x/text v0.32.0 // indirect
golang.org/x/tools v0.40.0 // indirect
gopkg.in/yaml.v2 v2.4.0 // indirect
modernc.org/libc v1.66.3 // indirect
modernc.org/mathutil v1.7.1 // indirect