Kyle Isom
efd307f7fd
Add ca-certificates and tzdata packages, fix user creation with proper home directory and nologin shell, combine RUN commands into a single layer, add VOLUME/WORKDIR declarations, and reorder USER after volume setup. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
39 lines
876 B
Docker
39 lines
876 B
Docker
FROM golang:1.25-alpine AS builder
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ARG VERSION=dev
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RUN apk add --no-cache git
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WORKDIR /build
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COPY go.mod go.sum ./
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RUN go mod download
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COPY . .
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RUN CGO_ENABLED=0 go build -trimpath -ldflags="-s -w -X main.version=${VERSION}" -o mcns ./cmd/mcns
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FROM alpine:3.21
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RUN apk add --no-cache ca-certificates tzdata \
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&& addgroup -S mcns \
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&& adduser -S -G mcns -h /srv/mcns -s /sbin/nologin mcns \
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&& mkdir -p /srv/mcns && chown mcns:mcns /srv/mcns
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COPY --from=builder /build/mcns /usr/local/bin/mcns
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# /srv/mcns is the single volume mount point.
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# It must contain:
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# mcns.toml — configuration file
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# certs/ — TLS certificate and key
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# mcns.db — created automatically on first run
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VOLUME /srv/mcns
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WORKDIR /srv/mcns
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EXPOSE 53/udp 53/tcp
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EXPOSE 8443
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EXPOSE 9443
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USER mcns
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ENTRYPOINT ["mcns"]
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CMD ["server", "--config", "/srv/mcns/mcns.toml"]
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