Dockerfile

#
# Prometheus nrpe_exporter docker file
#
ARG ARCH=amd64
#ubuntu:16.04 needed for ciphers.
FROM ubuntu:16.04 as builder
LABEL canonical=buildenv

ARG ARCH
ENV ARCH=$ARCH
ENV GOROOT /usr/local/go
ENV PATH $GOPATH/bin:$GOROOT/bin:$PATH
WORKDIR /app

RUN apt update \
  && apt install -y  wget openssl \
  && apt install -y  git libssl-dev musl-dev  libc-dev gcc pkg-config lxc-dev \
  && wget https://dl.google.com/go/go1.16.4.linux-${ARCH}.tar.gz \
  && tar -xvf go1.16.4.linux-${ARCH}.tar.gz \
  && mv go /usr/local/
COPY . .
RUN go build -a -ldflags '-extldflags "-static -ldl"' nrpe_exporter.go \
  && apt remove  -y  git libssl-dev musl-dev  libc-dev gcc pkg-config lxc-dev \
  && apt autoremove -y

# latest (.14) does not have libssl.so.1.0.0
FROM alpine:3.8
LABEL canonical=buildenv

ARG ARCH
ENV ARCH=$ARCH
# Error loading shared library libssl.so.1.0.0: No such file or directory (needed by nrpe_exporter)
RUN if [ "$ARCH" = "arm64" ]; then \
  mkdir /lib64 && ln -s /lib/libc.musl-aarch64.so.1 /lib64/ld-linux-aarch64.so.2; \
  else \
  mkdir /lib64 && ln -s /lib/libc.musl-x86_64.so.1 /lib64/ld-linux-x86_64.so.2; \
  fi

RUN  apk add --no-cache libssl1.0

COPY --from=builder /app/nrpe_exporter /bin/nrpe_exporter
EXPOSE      9275

ENTRYPOINT  [ "/bin/nrpe_exporter" ]