Dockerfile

FROM docker.io/golang:1.26 AS builder
RUN apt-get update && apt-get install -y make && rm -rf /var/lib/apt/lists/*
WORKDIR /app
COPY go.mod main.go Makefile ./
# The build context has no .git, so the Makefile's git describe finds nothing;
# the version has to be passed in.
ARG VERSION=dev
RUN make build VERSION=$VERSION

FROM alpine:3.23
RUN apk --no-cache add ca-certificates
RUN adduser -D -h /app appuser
RUN mkdir -p /certs && chown appuser:appuser /certs
WORKDIR /app
COPY --chown=appuser:appuser html /static
COPY --from=builder --chown=appuser:appuser /app/bin/static-httpserver .
USER appuser
ENV ROOT_DIR=/static PORT=8080 TLS_CERT_DIR=/certs
CMD ["./static-httpserver"]