observe-ui/backend/Dockerfile

FROM golang:1.17.8-buster
ENV SCOPE_SKIP_UI_ASSETS true
RUN set -eux; \
   export arch_val="$(dpkg --print-architecture)"; \
   apt-get update && \
   if [ "$arch_val" = "amd64" ]; then \
     apt-get install -y libpcap-dev time file shellcheck git gcc-arm-linux-gnueabihf curl build-essential gcc-s390x-linux-gnu; \
   else \
     apt-get install -y libpcap-dev time file shellcheck git curl build-essential; \
   fi && \
   rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*

RUN go get -tags netgo \
		github.com/fzipp/gocyclo \
		golang.org/x/lint/golint \
		github.com/kisielk/errcheck \
		github.com/client9/misspell/cmd/misspell && \
	rm -rf /go/pkg/ /go/src/

   # Only install shfmt on amd64, as the version v1.3.0 isn't supported for ppc64le
   # and the later version of shfmt doesn't work with the application well
RUN export arch_val="$(dpkg --print-architecture)"; \
   if [ "$arch_val" = "amd64" ]; then \
     curl -fsSL -o shfmt https://github.com/mvdan/sh/releases/download/v1.3.0/shfmt_v1.3.0_linux_amd64 && \
     chmod +x shfmt && \
     mv shfmt /usr/bin; \
   fi;

# Install Docker (client only)
ENV DOCKERVERSION=17.09.1-ce
RUN export arch_val="$(dpkg --print-architecture)"; \
    if [ "$arch_val" = "arm64" ]; then \
        curl -fsSLO https://download.docker.com/linux/static/stable/aarch64/docker-${DOCKERVERSION}.tgz; \
    elif [ "$arch_val" = "amd64" ]; then \
        curl -fsSLO https://download.docker.com/linux/static/stable/x86_64/docker-${DOCKERVERSION}.tgz; \
    elif [ "$arch_val" = "ppc64el" ]; then \
        curl -fsSLO https://download.docker.com/linux/static/stable/ppc64le/docker-${DOCKERVERSION}.tgz; \
    elif [ "$arch_val" = "s390x" ]; then \
        curl -fsSLO https://download.docker.com/linux/static/stable/s390x/docker-${DOCKERVERSION}.tgz; \
    else \
        echo "No Docker client found for architecture $(arch_val)." && \
        exit 1; \
    fi; \
    tar xzvf docker-${DOCKERVERSION}.tgz --strip 1 -C /usr/local/bin docker/docker && \
    rm docker-${DOCKERVERSION}.tgz;

COPY build.sh /
ENTRYPOINT ["/build.sh"]

ARG revision
LABEL maintainer="Weaveworks <help@weave.works>" \
      org.opencontainers.image.title="backend" \
      org.opencontainers.image.source="https://github.com/weaveworks/scope/tree/master/backend" \
      org.opencontainers.image.revision="${revision}" \
      org.opencontainers.image.vendor="Weaveworks"