make Dockerfile more efficient

Dockerfile

@@ -1,15 +1,35 @@
-FROM ghcr.io/sdr-enthusiasts/docker-baseimage:base
-
 ARG radarurl="ftp://public.tubby.org/radar-0.99.tar.gz"
 ARG radarurlcreds="ftp:"
 
-RUN set -x && \
+FROM ghcr.io/sdr-enthusiasts/docker-baseimage:base as build
     # define packages needed for installation and general management of the container:
+RUN set -x && \
     TEMP_PACKAGES=() && \
-    KEPT_PACKAGES=() && \
-    #
     TEMP_PACKAGES+=(pkg-config) && \
     TEMP_PACKAGES+=(build-essential) && \
+    # Install all the apt packages:
+    apt-get update -q && \
+    apt-get install -q -o APT::Autoremove::RecommendsImportant=0 -o APT::Autoremove::SuggestsImportant=0 -o Dpkg::Options::="--force-confold" -y --no-install-recommends  --no-install-suggests ${TEMP_PACKAGES[@]} ${KEPT_PACKAGES[@]} && \
+    #
+    # install stuff
+    mkdir -p /src && \
+    pushd /src && \
+      curl -sSL -u $radarurlcreds $radarurl -o radar.tgz && \
+      tar zxf radar.tgz && \
+      mv -f radar-* radar && \
+      cd radar && \
+      make && \
+      make install && \
+    popd
+
+
+FROM ghcr.io/sdr-enthusiasts/docker-baseimage:base
+
+COPY --from=build /usr/sbin/radar /usr/sbin/radar
+
+RUN set -x && \
+    # define packages needed for installation and general management of the container:
+    KEPT_PACKAGES=() && \
     KEPT_PACKAGES+=(tcpdump) && \
     KEPT_PACKAGES+=(logrotate) && \
     # 
@@ -30,16 +50,17 @@ RUN set -x && \
     useradd -U -M -s /usr/sbin/nologin radar && \
     #
     # Clean up
-    echo Uninstalling $TEMP_PACKAGES && \
-    apt-get remove -y -q ${TEMP_PACKAGES[@]} && \
+    echo Autoremoving/cleaning APT && \
     apt-get autoremove -q -o APT::Autoremove::RecommendsImportant=0 -o APT::Autoremove::SuggestsImportant=0 -y && \
     apt-get clean -y -q && \
     rm -rf \
-    /src/* \
-    /tmp/* \
-    /var/lib/apt/lists/* \
-    /.dockerenv \
-    /git && \
+      /src/* \
+      /tmp/* \
+      /var/lib/apt/lists/* \
+      /.dockerenv \
+      /git && \
+    #
+    # add version to the container
     version="$(/usr/sbin/radar -v | sed 's/^.*Version \(.*\)$/\1/g;q')" && \
     echo "${version// /_} ($(uname -m))" > /.CONTAINER_VERSION
 #

Dockerfile.org

@@ -0,0 +1,57 @@
+FROM ghcr.io/sdr-enthusiasts/docker-baseimage:base
+
+ARG radarurl="ftp://public.tubby.org/radar-0.99.tar.gz"
+ARG radarurlcreds="ftp:"
+
+RUN set -x && \
+    # define packages needed for installation and general management of the container:
+    TEMP_PACKAGES=() && \
+    KEPT_PACKAGES=() && \
+    #
+    TEMP_PACKAGES+=(pkg-config) && \
+    TEMP_PACKAGES+=(build-essential) && \
+    KEPT_PACKAGES+=(tcpdump) && \
+    KEPT_PACKAGES+=(logrotate) && \
+    # 
+    # Install all the apt packages:
+    apt-get update -q && \
+    apt-get install -q -o APT::Autoremove::RecommendsImportant=0 -o APT::Autoremove::SuggestsImportant=0 -o Dpkg::Options::="--force-confold" -y --no-install-recommends  --no-install-suggests ${TEMP_PACKAGES[@]} ${KEPT_PACKAGES[@]} && \
+    #
+    # install stuff
+    mkdir -p /src && \
+    pushd /src && \
+      curl -sSL -u $radarurlcreds $radarurl -o radar.tgz && \
+      tar zxf radar.tgz && \
+      mv -f radar-* radar && \
+      cd radar && \
+      make && \
+      make install && \
+    popd && \
+    useradd -U -M -s /usr/sbin/nologin radar && \
+    #
+    # Clean up
+    echo Uninstalling $TEMP_PACKAGES && \
+    apt-get remove -y -q ${TEMP_PACKAGES[@]} && \
+    apt-get autoremove -q -o APT::Autoremove::RecommendsImportant=0 -o APT::Autoremove::SuggestsImportant=0 -y && \
+    apt-get clean -y -q && \
+    rm -rf \
+    /src/* \
+    /tmp/* \
+    /var/lib/apt/lists/* \
+    /.dockerenv \
+    /git && \
+    version="$(/usr/sbin/radar -v | sed 's/^.*Version \(.*\)$/\1/g;q')" && \
+    echo "${version// /_} ($(uname -m))" > /.CONTAINER_VERSION
+#
+COPY rootfs/ /
+#
+RUN set -x && \
+    #
+    # Do some other stuff
+    echo "alias dir=\"ls -alsv\"" >> /root/.bashrc && \
+    echo "alias nano=\"nano -l\"" >> /root/.bashrc
+
+HEALTHCHECK --interval=300s --timeout=30s --start-period=300s --start-interval=30s --retries=1 CMD /scripts/healthcheck.sh
+#
+# No need for SHELL and ENTRYPOINT as those are inherited from the base image
+#