# Multi-stage build for nmcd

# Supports amd64 and arm64 architectures

# Build stage

FROM --platform=$BUILDPLATFORM golang:1.24-alpine AS builder

# Install build dependencies

RUN apk add --no-cache git ca-certificates tzdata

# Set working directory

WORKDIR /build

# Copy go mod files

COPY go.mod go.sum ./

RUN go mod download

# Copy source code

COPY . .

# Build arguments for version and platform

ARG VERSION=dev

ARG TARGETOS

ARG TARGETARCH

# Build the binary

RUN CGO_ENABLED=0 GOOS=$TARGETOS GOARCH=$TARGETARCH \

go build -v -trimpath \

-ldflags="-s -w -X main.version=${VERSION}" \

-o /build/nmcd \

./cmd/nmcd

# Runtime stage

FROM --platform=$TARGETPLATFORM alpine:latest

# Install runtime dependencies

RUN apk add --no-cache ca-certificates tzdata wget

# Create non-root user

RUN addgroup -S nmcd && adduser -S nmcd -G nmcd

# Create data directory

RUN mkdir -p /data && chown nmcd:nmcd /data

# Copy binary from builder

COPY --from=builder /build/nmcd /usr/local/bin/nmcd

# Set ownership

RUN chown nmcd:nmcd /usr/local/bin/nmcd

# Switch to non-root user

USER nmcd

# Set working directory

WORKDIR /data

# Expose ports

# 8334: P2P (mainnet)

# 8336: RPC (mainnet)

# 18334: P2P (testnet)

# 18336: RPC (testnet)

# 18444: P2P (regtest)

# 18445: RPC (regtest)

# 9090: Prometheus metrics

EXPOSE 8334 8336 18334 18336 18444 18445 9090

# Health check

HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \

CMD wget --no-verbose --tries=1 --spider http://localhost:8336/health || exit 1

# Volume for data persistence

VOLUME ["/data"]

# Default command

ENTRYPOINT ["/usr/local/bin/nmcd"]

CMD ["-datadir=/data", "-rpcaddr=127.0.0.1:8336"]