init

.docker-files/3-mounting.Dockerfile

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+FROM ubuntu
+
+# Setting entry point to the app binary
+ENTRYPOINT ["/usr/local/bin/HelloWorldApp"]
+
+# Install cmake to manage the build process. Removing cache by `docker builder prune`
+RUN --mount=type=cache,target=/var/cache/apt,sharing=locked --mount=type=cache,target=/var/lib/apt,sharing=locked \
+    rm -f /etc/apt/apt.conf.d/docker-clean \
+    && echo 'Binary::apt::APT::Keep-Downloaded-Packages "true";' > /etc/apt/apt.conf.d/keep-cache \
+    && apt-get update \
+    && apt-get install -y --no-install-recommends g++ make cmake
+
+# Copy all source files from the current directory to /app in the image
+COPY CMakeLists.txt .
+COPY src ./src
+
+# Configuring, building  and install the app
+RUN cmake . \
+    && make \
+    && make install