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Clean up Dockerfile for rootless podman compatibility

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Remove USER, VOLUME, and user creation — rootless podman runs as the
host user and bind-mounts /srv/mcns directly.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Kyle Isom
2026-03-28 15:55:03 -07:00
parent 871b1fb8f4
commit 07b0744c78
1 changed files with 1 additions and 13 deletions
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Dockerfile
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@@ -13,26 +13,14 @@ RUN CGO_ENABLED=0 go build -trimpath -ldflags="-s -w -X main.version=${VERSION}"
FROM alpine:3.21 FROM alpine:3.21
RUN apk add --no-cache ca-certificates tzdata \ RUN apk add --no-cache ca-certificates tzdata
&& addgroup -S mcns \
&& adduser -S -G mcns -h /srv/mcns -s /sbin/nologin mcns \
&& mkdir -p /srv/mcns && chown mcns:mcns /srv/mcns
COPY --from=builder /build/mcns /usr/local/bin/mcns COPY --from=builder /build/mcns /usr/local/bin/mcns
# /srv/mcns is the single volume mount point.
# It must contain:
# mcns.toml — configuration file
# certs/ — TLS certificate and key
# mcns.db — created automatically on first run
VOLUME /srv/mcns
WORKDIR /srv/mcns WORKDIR /srv/mcns
EXPOSE 53/udp 53/tcp EXPOSE 53/udp 53/tcp
EXPOSE 8443 EXPOSE 8443
EXPOSE 9443 EXPOSE 9443
USER mcns
ENTRYPOINT ["mcns"] ENTRYPOINT ["mcns"]
CMD ["server", "--config", "/srv/mcns/mcns.toml"] CMD ["server", "--config", "/srv/mcns/mcns.toml"]