diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..30528df
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,24 @@
+name: Python CI
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+
+      - name: Install dependencies
+        run: pip install -r req.txt
+
+      - name: Syntax check
+        run: python -m py_compile $(find . -name "*.py")
diff --git a/.github/workflows/docker-build.yml b/.github/workflows/docker-build.yml
new file mode 100644
index 0000000..0731374
--- /dev/null
+++ b/.github/workflows/docker-build.yml
@@ -0,0 +1,30 @@
+name: Docker Build & Push
+
+on:
+  push:
+    branches: [ "main" ]
+  workflow_dispatch:
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: docker/setup-buildx-action@v3
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Build & Push
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          tags: aryansharma04/systemmonitoring:latest
+          cache-from: type=registry,ref=aryansharma04/systemmonitoring:cache
+          cache-to: type=registry,ref=aryansharma04/systemmonitoring:cache,mode=max
diff --git a/.github/workflows/docker-image.yml b/.github/workflows/docker-image.yml
deleted file mode 100644
index cdbeb17..0000000
--- a/.github/workflows/docker-image.yml
+++ /dev/null
@@ -1,44 +0,0 @@
-name: CI/CD Pipeline for Docker
-
-on:
-  push:
-    branches:
-      - main
-  pull_request:
-    branches:
-      - main
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-
-    steps:
-    - name: Checkout code
-      uses: actions/checkout@v3
-
-    - name: Set up Docker Buildx
-      uses: docker/setup-buildx-action@v3
-
-    # 👇 Only log in to Docker Hub for non-pull-request events
-    - name: Log in to Docker Hub
-      if: github.event_name != 'pull_request'
-      uses: docker/login-action@v3
-      with:
-        username: ${{ secrets.DOCKER_USERNAME }}
-        password: ${{ secrets.DOCKER_PASSWORD }}
-
-    # 👇 Skip message for PRs
-    - name: Skip Docker login on pull requests
-      if: github.event_name == 'pull_request'
-      run: echo "Skipping Docker login — secrets are unavailable in PRs."
-
-    # 👇 Build and push Docker image
-    - name: Build and push Docker image
-      uses: docker/build-push-action@v5
-      with:
-        context: .
-        push: ${{ github.event_name != 'pull_request' }}
-        tags: aryansharma04/systemmonitoring:latest
-
-    - name: Clean up images
-      run: docker image prune -af
diff --git a/Dockerfile b/Dockerfile
index 808ae13..503fe78 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,32 +1,32 @@
-# Use full Python image (not slim) to avoid missing system libs
-FROM python:3.11
+# ---------- Stage 1: Build dependencies ----------
+FROM python:3.11-slim AS builder
 
-# Set working directory
 WORKDIR /app
 
-# Install required system dependencies for pandas & scikit-learn
-RUN apt-get update && apt-get install -y \
-    gcc \
-    g++ \
-    make \
+RUN apt-get update && apt-get install -y --no-install-recommends \
     build-essential \
     libopenblas-dev \
     liblapack-dev \
     gfortran \
     && rm -rf /var/lib/apt/lists/*
 
-# Copy requirements first to leverage Docker cache
 COPY req.txt .
 
-# Upgrade pip and install Python dependencies
-RUN pip install --upgrade pip setuptools wheel --no-cache-dir \
-    && pip install --no-cache-dir -r req.txt
+RUN pip install --upgrade pip \
+    && pip install --no-cache-dir -r req.txt \
+    && pip install --no-cache-dir uvicorn
 
-# Copy application files
+# ---------- Stage 2: Final lightweight image ----------
+FROM python:3.11-slim
+
+WORKDIR /app
+
+# Copy only installed packages (fast!)
+COPY --from=builder /usr/local /usr/local
+
+# Copy app code
 COPY . .
 
-# Expose FastAPI port
 EXPOSE 8000
 
-# Run FastAPI app
 CMD ["uvicorn", "apps:app", "--host", "0.0.0.0", "--port", "8000"]
diff --git a/SystemMonitoring b/SystemMonitoring
new file mode 160000
index 0000000..93769c8
--- /dev/null
+++ b/SystemMonitoring
@@ -0,0 +1 @@
+Subproject commit 93769c8898407deda1c4b5ac07672efbaa60c918
diff --git a/__pycache__/__init__.cpython-312.pyc b/__pycache__/__init__.cpython-312.pyc
new file mode 100644
index 0000000..5e5f16f
Binary files /dev/null and b/__pycache__/__init__.cpython-312.pyc differ
diff --git a/__pycache__/apps.cpython-312.pyc b/__pycache__/apps.cpython-312.pyc
new file mode 100644
index 0000000..7ef52f2
Binary files /dev/null and b/__pycache__/apps.cpython-312.pyc differ
diff --git a/tests/__pycache__/conftest.cpython-312-pytest-8.4.2.pyc b/tests/__pycache__/conftest.cpython-312-pytest-8.4.2.pyc
new file mode 100644
index 0000000..7d59b6b
Binary files /dev/null and b/tests/__pycache__/conftest.cpython-312-pytest-8.4.2.pyc differ
diff --git a/tests/__pycache__/test_data_processing.cpython-312-pytest-8.4.2.pyc b/tests/__pycache__/test_data_processing.cpython-312-pytest-8.4.2.pyc
new file mode 100644
index 0000000..91c8472
Binary files /dev/null and b/tests/__pycache__/test_data_processing.cpython-312-pytest-8.4.2.pyc differ
diff --git a/tests/__pycache__/test_endpoints.cpython-312-pytest-8.4.2.pyc b/tests/__pycache__/test_endpoints.cpython-312-pytest-8.4.2.pyc
new file mode 100644
index 0000000..509d6c4
Binary files /dev/null and b/tests/__pycache__/test_endpoints.cpython-312-pytest-8.4.2.pyc differ
diff --git a/tests/__pycache__/test_integration.cpython-312-pytest-8.4.2.pyc b/tests/__pycache__/test_integration.cpython-312-pytest-8.4.2.pyc
new file mode 100644
index 0000000..36bac02
Binary files /dev/null and b/tests/__pycache__/test_integration.cpython-312-pytest-8.4.2.pyc differ
diff --git a/tests/conftest.py b/tests/conftest.py
new file mode 100644
index 0000000..85d7212
--- /dev/null
+++ b/tests/conftest.py
@@ -0,0 +1,6 @@
+import os
+import sys
+
+# Get the parent directory of tests (project root)
+project_root = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+sys.path.insert(0, project_root)
\ No newline at end of file
diff --git a/tests/test_data_processing.py b/tests/test_data_processing.py
new file mode 100644
index 0000000..87983b5
--- /dev/null
+++ b/tests/test_data_processing.py
@@ -0,0 +1,4 @@
+def test_sample_data():
+    data = [1, 2, 3]
+    result = sum(data)
+    assert result == 6
diff --git a/tests/test_endpoints.py b/tests/test_endpoints.py
new file mode 100644
index 0000000..d287c1c
--- /dev/null
+++ b/tests/test_endpoints.py
@@ -0,0 +1,17 @@
+from fastapi.testclient import TestClient
+import sys
+import os
+sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+from apps import app
+
+client = TestClient(app)
+
+def test_root_endpoint():
+    response = client.get("/")
+    assert response.status_code == 200
+    assert response.json() == {"message": "Hello World"}  # matches your code
+
+def test_health_endpoint():
+    response = client.get("/health")
+    assert response.status_code == 200
+    assert response.json() == {"status": "ok"}  # matches your code
diff --git a/tests/test_integration.py b/tests/test_integration.py
new file mode 100644
index 0000000..4911aeb
--- /dev/null
+++ b/tests/test_integration.py
@@ -0,0 +1,4 @@
+def test_integration_example():
+    x = 5
+    y = 10
+    assert x + y == 15