broad-announce/Dockerfile

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

FROM golang:1.25-alpine AS build
WORKDIR /src

# Cache deps
COPY go.mod go.sum ./
COPY loadgen/go.mod ./loadgen/go.mod
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-fcm ./cmd/deliverd-fcm && \
    CGO_ENABLED=0 GOOS=linux go build -trimpath -ldflags="-s -w" \
      -o /out/deliverd-telegram ./cmd/deliverd-telegram && \
    CGO_ENABLED=0 GOOS=linux go build -trimpath -ldflags="-s -w" \
      -o /out/telegramd ./cmd/telegramd && \
    CGO_ENABLED=0 GOOS=linux go build -trimpath -ldflags="-s -w" \
      -o /out/admind   ./cmd/admind && \
    CGO_ENABLED=0 GOOS=linux go build -trimpath -ldflags="-s -w" \
      -o /out/seed     ./cmd/seed && \
    cd loadgen && \
    CGO_ENABLED=0 GOOS=linux go build -trimpath -ldflags="-s -w" \
      -o /out/loadgen-http ./cmd/http && \
    CGO_ENABLED=0 GOOS=linux go build -trimpath -ldflags="-s -w" \
      -o /out/loadgen-mqtt  ./cmd/mqtt && \
    cd .. && \
    CGO_ENABLED=0 GOOS=linux go build -trimpath -ldflags="-s -w" \
      -o /out/fakefcmd ./testfakes/fakefcmd && \
    CGO_ENABLED=0 GOOS=linux go build -trimpath -ldflags="-s -w" \
      -o /out/faketgmd ./testfakes/faketgmd

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"]