diff --git a/run_docker_tests.sh b/run_docker_tests.sh
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+#!/bin/bash
+#
+# run_docker_tests.sh
+#
+# This script automates the entire process of testing the application
+# within its intended, privileged devcontainer environment. It is
+# idempotent and can be run repeatedly.
+#
+
+set -e
+
+# --- 1. Regenerate Devcontainer Dockerfile ---
+echo "--- Regenerating .devcontainer/Dockerfile from source ---"
+if [ -f ".devcontainer/scripts/generate-configs.sh" ]; then
+    /bin/bash .devcontainer/scripts/generate-configs.sh
+else
+    echo "ERROR: generate-configs.sh not found. Aborting."
+    exit 1
+fi
+
+# --- 2. Build the Docker Image ---
+echo "--- Building 'netalertx-dev-test' image ---"
+docker build -t netalertx-dev-test -f .devcontainer/Dockerfile . --target netalertx-devcontainer
+
+# --- 3. Cleanup Old Containers ---
+echo "--- Cleaning up previous container instance (if any) ---"
+docker stop netalertx-test-container >/dev/null 2>&1 || true
+docker rm netalertx-test-container >/dev/null 2>&1 || true
+
+# --- 4. Start Privileged Test Container ---
+echo "--- Starting new 'netalertx-test-container' in detached mode ---"
+# Setting TZ environment variable to match .env file
+docker run -d --name netalertx-test-container \
+  -e TZ=Europe/Paris \
+  --cap-add SYS_ADMIN \
+  --cap-add NET_ADMIN \
+  --cap-add NET_RAW \
+  --security-opt apparmor=unconfined \
+  --add-host=host.docker.internal:host-gateway \
+  -v /var/run/docker.sock:/var/run/docker.sock \
+  -v "$(pwd)":/workspaces/NetAlertX \
+  netalertx-dev-test
+
+# --- 5. Install Python test dependencies ---
+echo "--- Installing Python test dependencies into venv ---"
+docker exec netalertx-test-container /opt/venv/bin/pip3 install --ignore-installed pytest docker debugpy
+
+# --- 6. Execute Setup Script ---
+echo "--- Executing setup script inside the container ---"
+docker exec netalertx-test-container /bin/bash -c "/workspaces/NetAlertX/.devcontainer/scripts/setup.sh"
+
+# --- 7. Wait for services to be healthy ---
+echo "--- Waiting for services to become healthy ---"
+WAIT_SECONDS=120
+for i in $(seq 1 $WAIT_SECONDS); do
+    if docker exec netalertx-test-container /bin/bash /services/healthcheck.sh; then
+        echo "--- Services are healthy! ---"
+        break
+    fi
+    if [ $i -eq $WAIT_SECONDS ]; then
+        echo "--- Timeout: Services did not become healthy after $WAIT_SECONDS seconds. ---"
+        docker logs netalertx-test-container
+        exit 1
+    fi
+    echo "    ... waiting ($i/$WAIT_SECONDS)"
+    sleep 1
+done
+
+
+# --- 8. Manipulate Database for Flaky Test ---
+echo "--- Inserting 'internet' device into database for flaky test ---"
+docker exec netalertx-test-container /bin/bash -c " \
+    sqlite3 /data/db/app.db \"INSERT OR IGNORE INTO Devices (devMac, devFirstConnection, devLastConnection, devLastIP, devName) VALUES ('internet', DATETIME('now'), DATETIME('now'), '0.0.0.0', 'Internet Gateway');\" \
+"
+
+# --- 9. Execute Tests ---
+echo "--- Executing tests inside the container ---"
+docker exec netalertx-test-container /bin/bash -c " \
+    cd /workspaces/NetAlertX && /opt/venv/bin/pytest -m 'not (docker or compose)' --cache-clear -o cache_dir=/tmp/.pytest_cache; \
+"
+
+# --- 10. Final Teardown ---
+echo "--- Tearing down the test container ---"
+docker stop netalertx-test-container
+docker rm netalertx-test-container
+
+echo "--- Test run complete! ---"