updating github action

Author: behnamasadi

.github/workflows/docker-build.yml

@@ -21,6 +21,14 @@ jobs:
       - name: Build the Docker image
         run: docker build . --file Dockerfile --tag mycpp_image:latest
 
+      # Step 2.5: Verify Docker image and cmake availability
+      - name: Verify Docker image
+        run: |
+          docker run --rm mycpp_image:latest which cmake
+          docker run --rm mycpp_image:latest which ninja
+          docker run --rm mycpp_image:latest cmake --version
+          docker run --rm mycpp_image:latest ninja --version
+
       # Step 3: Configure CMake
       - name: Configure CMake
         run: docker run --rm -v ${{ github.workspace }}:/cpp_tutorials mycpp_image:latest cmake -S /cpp_tutorials -G "Ninja Multi-Config" -B /cpp_tutorials/build

Dockerfile

@@ -1,5 +1,5 @@
-# Use Ubuntu 24.04 as the base image
-FROM ubuntu:24.04
+# Use a pre-built image with cmake and build tools to avoid package repository issues
+FROM ubuntu/cmake:latest
 
 LABEL maintainer="Behnam Asadi <behnam.asadi@gmail.com>"
 
@@ -8,21 +8,17 @@ ENV DEBIAN_FRONTEND=noninteractive
 ENV TZ=Europe/Berlin
 RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
 
-# Install required packages with retry logic and better error handling
-RUN --mount=type=cache,target=/var/cache/apt \
-    for i in $(seq 1 3); do \
-        apt-get update --fix-missing && \
-        apt-get install -y --no-install-recommends \
-            git \
-            cmake \
-            ninja-build \
-            doxygen \
-            build-essential \
-            graphviz \
-            ca-certificates \
-        && break || sleep 10; \
-    done && \
-    apt-get clean && \
-    rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+# Install additional required packages that aren't in the base image
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    doxygen \
+    graphviz \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+
+# Verify that cmake and ninja are installed and available
+RUN cmake --version && ninja --version
+
+# Set working directory
+WORKDIR /cpp_tutorials