init

.devcontainer/devcontainer.json

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+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/ubuntu
+{
+	"name": "Ubuntu",
+	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+	"image": "mcr.microsoft.com/devcontainers/base:jammy",
+	"features": {
+		"ghcr.io/devcontainers/features/docker-in-docker:2": {},
+		"ghcr.io/devcontainers-contrib/features/doctoolchain-sdkman:2": {}
+	},
+	"remoteUser": "vscode",
+	"workspaceMount": "source=${localWorkspaceFolder},target=/workspace,type=bind,Z",
+	"workspaceFolder": "/workspace",
+	
+	"runArgs": ["--userns=keep-id"],
+	"containerUser": "vscode"
+}

.docker-files/0-origin.Dockerfile

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+# Use Ubuntu 22.04 as the base image
+FROM ubuntu
+
+# Copy all source files from the current directory to /app in the image
+COPY . .
+
+# Update package list to ensure we have the latest information
+RUN apt-get update
+
+# Install g++
+RUN apt-get install -y g++
+
+# Install cmake to manage the build process
+RUN apt-get install -y cmake
+
+# Configuring and building the app using cmake
+RUN cmake .
+
+# Building the app using make
+RUN make
+
+# Building the app again (if needed)
+RUN make install
+
+# Clean up package lists to reduce the image size
+RUN rm -rf /var/lib/apt/lists/*
+
+# Setting entry point to the app binary
+ENTRYPOINT ["/usr/local/bin/HelloWorldApp"]

.docker-files/1-reordering.Dockerfile

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+FROM ubuntu
+
+# Setting entry point to the app binary
+ENTRYPOINT ["/usr/local/bin/HelloWorldApp"]
+
+# Update package list to ensure we have the latest information
+RUN apt-get update
+
+# Install g++
+RUN apt-get install -y g++
+
+# Install cmake to manage the build process
+RUN apt-get install -y cmake
+
+# Clean up package lists to reduce the image size
+RUN rm -rf /var/lib/apt/lists/*
+
+# Copy all source files from the current directory to /app in the image
+COPY . .
+
+# Configuring and building the app using cmake
+RUN cmake .
+
+# Building the app using make
+RUN make
+
+# Install the app
+RUN make install

.docker-files/2-grouping.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
+RUN apt-get update \
+    && apt-get install --no-install-recommends -y g++ make cmake \
+    && rm -rf /var/lib/apt/lists/*
+
+# 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

.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

.docker-files/4-multi-stage.Dockerfile

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+# === Builder Stage ===
+FROM ubuntu as builder
+
+# 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
+
+# === Production Stage ===
+FROM ubuntu
+
+# Copy only the built artifacts from the builder stage
+COPY --from=builder /usr/local/bin/HelloWorldApp /HelloWorldApp
+
+# Setting entry point to the app binary
+ENTRYPOINT ["/HelloWorldApp"]

.docker-files/5-base-image.Dockerfile

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+# === Builder Stage ===
+FROM alpine as builder
+
+# Install cmake to manage the build process. Removing cache by `docker builder prune`
+RUN --mount=type=cache,target=/var/cache/apk,sharing=locked \
+    apk add --cache-dir /var/cache/apk g++ make cmake
+
+# Alternatively, you can use --no-cache option to avoid creating a cache inside the container.
+# However, note that this will also prevent the use of the shared cache, affecting caching efficiency.
+# Example:
+# RUN apk --no-cache add g++ mahe 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
+
+# === Production Stage ===
+FROM alpine
+
+# Copy only the built artifacts from the builder stage
+COPY --from=builder /usr/local/bin/HelloWorldApp /HelloWorldApp
+
+# Setting entry point to the app binary
+ENTRYPOINT ["/HelloWorldApp"]

.docker-files/6-pinimage.Dockerfile

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+# === Builder Stage ===
+FROM alpine:3.18.4@sha256:48d9183eb12a05c99bcc0bf44a003607b8e941e1d4f41f9ad12bdcc4b5672f86 as builder
+
+# Install cmake to manage the build process. Removing cache by `docker builder prune`
+RUN --mount=type=cache,target=/var/cache/apk,sharing=locked \
+    apk add --cache-dir /var/cache/apk g++ make cmake
+
+# Alternatively, you can use --no-cache option to avoid creating a cache inside the container.
+# However, note that this will also prevent the use of the shared cache, affecting caching efficiency.
+# Example:
+# RUN apk --no-cache add g++ mahe 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
+
+# === Production Stage ===
+FROM alpine:3.18.4@sha256:48d9183eb12a05c99bcc0bf44a003607b8e941e1d4f41f9ad12bdcc4b5672f86
+
+# Copy only the built artifacts from the builder stage
+COPY --from=builder /usr/local/bin/HelloWorldApp /HelloWorldApp
+
+# Setting entry point to the app binary
+ENTRYPOINT ["/HelloWorldApp"]

.dockerignore

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+.devcontainer
+.git
+.docker-files
+.dockerignore

CMakeLists.txt

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+# Specify the minimum version of CMake required
+cmake_minimum_required(VERSION 3.10)
+
+# Set the project name and version
+project(HelloWorldApp VERSION 1.0)
+
+# Add the executable
+add_executable(HelloWorldApp src/HelloWorldApp.cpp)
+target_link_libraries(HelloWorldApp -static)
+
+# install executable
+install(TARGETS HelloWorldApp DESTINATION bin)

alias.sh

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+alias dive="docker run -ti --rm  -v /var/run/docker.sock:/var/run/docker.sock wagoodman/dive"

src/HelloWorldApp.cpp

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+#include <iostream>
+
+int main() {
+    std::cout << "Hello, World!" << std::endl;
+    return 0;
+}