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feat: add VPN DNS service with dynamic service catalog resolution and CoreDNS integration

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Add ServiceDNSRecord type and gateway API endpoint to expose active service domain-to-IP mappings. Implement ListServiceDNSRecords repository method querying services table with proxy_ip resolution using effectiveAccessProxyIP helper.

Add vpn-dns microservice built on CoreDNS with periodic sync from backend API. Generate Corefile with configurable upstream DNS servers and hosts plugin for service overrides.
This commit is contained in:
Sascha Nesterovic
2026-03-18 13:30:34 +01:00
parent 6cf49ff3e0
commit 3e2169f217
11 changed files with 238 additions and 1 deletions
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deploy/vpn-dns/Dockerfile Normal file
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FROM golang:1.23-alpine AS builder
WORKDIR /src
COPY vpn-dns/go.mod ./
COPY vpn-dns/main.go ./
RUN go build -o /out/nexavpn-vpn-dns ./main.go
FROM coredns/coredns:1.11.3
COPY --from=builder /out/nexavpn-vpn-dns /usr/local/bin/nexavpn-vpn-dns
ENTRYPOINT ["/usr/local/bin/nexavpn-vpn-dns"]