Add installation process for docker in Dockerfile

src/Dockerfile

@@ -40,6 +40,41 @@ RUN apt-get install -y \
 
 RUN /tmp/repo_script_installer.bash "https://github.com/fuchs-fabian/simbashlog.git" "v1.1.3"
 
+# ╔═════════════════════╦══════════════════════╗
+# ║                                            ║
+# ║                  DOCKER                    ║
+# ║                                            ║
+# ╚═════════════════════╩══════════════════════╝
+
+# Reference: https://docs.docker.com/engine/install/debian/#install-using-the-repository
+
+RUN echo "Installing 'docker'..."
+
+RUN apt-get update && apt-get install -y \
+    ca-certificates \
+    curl \
+    gnupg \
+    lsb-release
+
+# Add Docker's official GPG key
+RUN install -m 0755 -d /etc/apt/keyrings && \
+    curl -fsSL https://download.docker.com/linux/debian/gpg -o /etc/apt/keyrings/docker.asc && \
+    chmod a+r /etc/apt/keyrings/docker.asc
+
+# Add the repository to Apt sources
+RUN echo \
+    "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/debian \
+    $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
+    tee /etc/apt/sources.list.d/docker.list > /dev/null
+
+# Install Docker packages
+RUN apt-get update && apt-get install -y \
+    docker-ce \
+    docker-ce-cli \
+    containerd.io \
+    docker-buildx-plugin \
+    docker-compose-plugin
+
 # ╔═════════════════════╦══════════════════════╗
 # ║                                            ║
 # ║                  DOMPOSY                   ║