Simplify container build GH workflow

.github/workflows/publish-docker.yml

@@ -67,8 +67,8 @@ jobs:
         uses: docker/build-push-action@v6
         with:
           context: .
-          platforms: linux/amd64, linux/arm64
+          platforms: linux/amd64 ,linux/arm64
           push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
-          target: ${{ matrix.image.target }}
+          target: ${{ matrix.image.target }}

Dockerfile

@@ -20,15 +20,33 @@ COPY hack/ hack/
 ARG TARGETOS
 ARG TARGETARCH
 
+# Install dependencies (including architecture-specific GCC)
 RUN apt-get update && apt-get install -y --no-install-recommends \
-    qemu-utils ca-certificates libvirt-clients libcephfs-dev librbd-dev librados-dev libc-bin gcc \
+    qemu-user-static qemu-utils ca-certificates \
+    libvirt-clients libcephfs-dev librbd-dev librados-dev libc-bin \
+    gcc g++ \
     && update-ca-certificates \
     && rm -rf /var/lib/apt/lists/*
 
-# Build
+# Install ARM64 cross-compiler if needed
+RUN if [ "$TARGETARCH" = "arm64" ]; then \
+      apt-get update && apt-get install -y --no-install-recommends \
+      gcc-aarch64-linux-gnu g++-aarch64-linux-gnu; \
+    fi
+
+# Set correct compiler based on architecture
+ENV CC="gcc"
+ENV CXX="g++"
+RUN if [ "$TARGETARCH" = "arm64" ]; then \
+      export CC="aarch64-linux-gnu-gcc"; \
+      export CXX="aarch64-linux-gnu-g++"; \
+    fi
+
+# Build the binary (correctly setting CC and CXX)
 RUN --mount=type=cache,target=/root/.cache/go-build \
     --mount=type=cache,target=/go/pkg \
-    CGO_ENABLED=1 GOOS=$TARGETOS GOARCH=$TARGETARCH GO111MODULE=on go build -ldflags="-s -w" -a -o libvirt-provider ./cmd/libvirt-provider/main.go
+    CGO_ENABLED=1 GOOS=$TARGETOS GOARCH=$TARGETARCH \
+    CC=$CC CXX=$CXX go build -ldflags="-s -w" -o libvirt-provider ./cmd/libvirt-provider/main.go
 
 # Install irictl-machine
 RUN --mount=type=cache,target=/root/.cache/go-build \