broad-announce/Dockerfile

# Multi-stage build for broad-announce services.
# Stage 1: build the four Go service binaries.
# Stage 2: tiny alpine with just the binaries + ca-certs.

FROM golang:1.24-alpine AS build
WORKDIR /src

# Cache deps
COPY go.mod go.sum ./
COPY loadgen/go.mod loadgen/go.sum ./loadgen/ 2>/dev/null || true
RUN go mod download

# Build
COPY . .
RUN --mount=type=cache,target=/root/.cache/go-build \
    CGO_ENABLED=0 GOOS=linux go build -trimpath -ldflags="-s -w" \
      -o /out/ingestd  ./cmd/ingestd && \
    CGO_ENABLED=0 GOOS=linux go build -trimpath -ldflags="-s -w" \
      -o /out/routerd  ./cmd/routerd && \
    CGO_ENABLED=0 GOOS=linux go build -trimpath -ldflags="-s -w" \
      -o /out/deliverd ./cmd/deliverd && \
    CGO_ENABLED=0 GOOS=linux go build -trimpath -ldflags="-s -w" \
      -o /out/admind   ./cmd/admind && \
    cd loadgen && \
    CGO_ENABLED=0 GOOS=linux go build -trimpath -ldflags="-s -w" \
      -o /out/loadgen-http ./cmd/http

FROM alpine:3.20
RUN apk add --no-cache ca-certificates
COPY --from=build /out/ /app/
# Default: print which binary to invoke; compose overrides command.
CMD ["/app/ingestd"]