Dockerfile

FROM golang:1.23.5-alpine@sha256:47d337594bd9e667d35514b241569f95fb6d95727c24b19468813d596d5ae596 AS runner-compilation

ARG ARCH
ARG RUNNER_VERSION
ENV GOPATH=""
ENV CGO_ENABLED=0

RUN apk add --no-cache git && \
    git clone https://github.com/drone-runners/drone-runner-docker -b "${RUNNER_VERSION}" && \
    cd drone-runner-docker && \
    GOOS=linux GOARCH=${ARCH} go build -o release/linux/${ARCH}/drone-runner-docker



FROM alpine:3.21.2@sha256:56fa17d2a7e7f168a043a2712e63aed1f8543aeafdcee47c58dcffe38ed51099 AS tmate-installation

ARG ARCH
ARG ARCH_AUX
ARG VARIANT
ARG TMATE_VERSION

RUN apk add -U --no-cache ca-certificates wget && \
    wget https://github.com/tmate-io/tmate/releases/download/${TMATE_VERSION}/tmate-${TMATE_VERSION}-static-linux-"${ARCH}""${ARCH_AUX:-}""${VARIANT:-}".tar.xz && \
    tar -xf tmate-${TMATE_VERSION}-static-linux-"${ARCH}""${ARCH_AUX:-}""${VARIANT:-}".tar.xz && \
    mv tmate-${TMATE_VERSION}-static-linux-"${ARCH}""${ARCH_AUX:-}""${VARIANT:-}"/tmate /bin/ && \
    chmod +x /bin/tmate



FROM scratch

ARG ARCH

EXPOSE 3000

ENV GODEBUG=netdns=go
ENV DRONE_PLATFORM_OS=linux
ENV DRONE_PLATFORM_ARCH=${ARCH}

COPY --from=tmate-installation /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
COPY --from=tmate-installation /bin/tmate /bin/

LABEL com.centurylinklabs.watchtower.stop-signal="SIGINT"

COPY --from=runner-compilation /go/drone-runner-docker/release/linux/${ARCH}/drone-runner-docker /bin/

ENTRYPOINT ["/bin/drone-runner-docker"]