Add multi-arch Docker builds and fix arm/v7 plugin system compilation

.github/workflows/docker.yml

@@ -0,0 +1,42 @@
+name: Build and Publish Multi-Arch Docker Image
+
+on:
+  push:
+    branches: [ main, development ]
+  pull_request:
+    branches: [ main, development ]
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to GHCR
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ secrets.GHCR_USERNAME }}
+          password: ${{ secrets.GHCR_TOKEN }}
+
+      - name: Build and Push Multi-Arch Image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          push: true
+          platforms: linux/amd64,linux/arm64,linux/arm/v7
+          tags: |
+            ghcr.io/autonomy-logic/openplc-runtime:latest
+            ghcr.io/autonomy-logic/openplc-runtime:${{ github.sha }}

.gitignore

@@ -6,6 +6,7 @@
 .vscode/
 #.*/
 /venvs/
+.venv/
 __pycache__/
 .clinerules
 

Dockerfile

@@ -1,19 +1,24 @@
-# Dockerfile
-FROM debian:bookworm-slim
+# syntax=docker/dockerfile:1
 
-RUN apt-get update && apt-get install -y \
-    python3 python3-venv python3-pip bash \
-    pkg-config \
-    && rm -rf /var/lib/apt/lists/*
+FROM debian:bookworm-slim
 
 WORKDIR /workdir
+
+# Copy source code
 COPY . .
-RUN mkdir -p /var/run/runtime
+
+# Setup runtime directory and permissions
+RUN mkdir -p /var/run/runtime && \
+    chmod +x install.sh scripts/* start_openplc.sh
+
 # Clean any existing build artifacts to ensure clean Docker build
-RUN rm -rf build/ venvs/ 2>/dev/null || true
-RUN chmod +x install.sh scripts/* start_openplc.sh
+RUN rm -rf build/ venvs/ .venv/ 2>/dev/null || true
+
+# Run installation script
 RUN ./install.sh
 
+# Expose webserver port
 EXPOSE 8443
 
+# Default execution - Start OpenPLC Runtime
 CMD ["bash", "./start_openplc.sh"]

core/src/drivers/plugin_driver.c

@@ -160,7 +160,9 @@ int plugin_driver_init(plugin_driver_t *driver)
             // Call the Python init function with proper capsule
             PyObject *result =
                 PyObject_CallFunctionObjArgs(plugin->python_plugin->pFuncInit, args, NULL);
-            Py_SET_REFCNT(args, UINT64_MAX);
+
+            // Store the capsule reference for the lifetime of the plugin
+            plugin->python_plugin->args_capsule = args;
 
             if (!result)
             {
@@ -639,6 +641,7 @@ static void python_plugin_cleanup(plugin_instance_t *plugin)
         Py_XDECREF(plugin->python_plugin->pFuncStop);
         Py_XDECREF(plugin->python_plugin->pFuncCleanup);
         Py_XDECREF(plugin->python_plugin->pModule);
+        Py_XDECREF(plugin->python_plugin->args_capsule);
 
         free(plugin->python_plugin);
         plugin->python_plugin = NULL;

core/src/drivers/python_plugin_bridge.h

@@ -15,6 +15,7 @@ typedef struct
     PyObject *pFuncStart;
     PyObject *pFuncStop;
     PyObject *pFuncCleanup;
+    PyObject *args_capsule; // Capsule containing plugin_runtime_args_t for lifetime management
 } python_binds_t;
 
-#endif // __PYTHON_PLUGIN_BRIDGE_H
+#endif // __PYTHON_PLUGIN_BRIDGE_H

install.sh

@@ -70,6 +70,7 @@ install_deps_apt() {
         gcc \
         make \
         cmake \
+        pkg-config \
     && rm -rf /var/lib/apt/lists/*
 }
 
@@ -167,4 +168,4 @@ else
     echo "ERROR: Build process failed!" >&2
     echo "Please check the error messages above for details." >&2
     exit 1
-fi
+fi

webserver/app.py

@@ -240,6 +240,7 @@ def run_https():
             ssl_context=context,
             use_reloader=False,
             log_output=False,
+            allow_unsafe_werkzeug=True,
         )
 
     except FileNotFoundError:

webserver/debug_websocket.py

@@ -10,6 +10,7 @@
 from flask_jwt_extended import decode_token
 from flask_socketio import SocketIO, emit
 from jwt.exceptions import ExpiredSignatureError, InvalidTokenError
+
 from webserver.logger import get_logger
 
 logger, _ = get_logger("debug_ws", use_buffer=True)