diff --git a/.github/workflows/blank.yml b/.github/workflows/blank.yml
new file mode 100644
index 0000000..01502b1
--- /dev/null
+++ b/.github/workflows/blank.yml
@@ -0,0 +1,36 @@
+# This is a basic workflow to help you get started with Actions
+
+name: CI
+
+# Controls when the workflow will run
+on:
+  # Triggers the workflow on push or pull request events but only for the "main" branch
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  # This workflow contains a single job called "build"
+  build:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v4
+
+      # Runs a single command using the runners shell
+      - name: Run a one-line script
+        run: echo Hello, world!
+
+      # Runs a set of commands using the runners shell
+      - name: Run a multi-line script
+        run: |
+          echo Add other actions to build,
+          echo test, and deploy your project.
diff --git a/.github/workflows/second.yml b/.github/workflows/second.yml
new file mode 100644
index 0000000..90bac38
--- /dev/null
+++ b/.github/workflows/second.yml
@@ -0,0 +1,14 @@
+name: Second CI
+
+on:
+    push
+
+    jobs:
+        build:
+            runs-on: ubuntu-latest
+
+
+
+            steps:
+                - name: Say Hello
+                  run: echo "Hello From Second"
diff --git a/Full-Stack-AI-DevOps-Masterclass b/Full-Stack-AI-DevOps-Masterclass
new file mode 160000
index 0000000..d19adb2
--- /dev/null
+++ b/Full-Stack-AI-DevOps-Masterclass
@@ -0,0 +1 @@
+Subproject commit d19adb20086a5642e425b2a90eb9046c28549024
diff --git a/docker/app1-hello/docker-compose.yml b/docker/app1-hello/docker-compose.yml
new file mode 100644
index 0000000..2670935
--- /dev/null
+++ b/docker/app1-hello/docker-compose.yml
@@ -0,0 +1,16 @@
+services:
+  hello-py:
+    build: ./python
+    image: ritesh07p/hello-python:1.0
+    ports:
+      - "3000:3000"
+    environment:
+      - ENV_VALUE=${ENV_VALUE}
+
+  hello-node:
+    build: ./node
+    image: ritesh07p/hello-node:1.0
+    ports:
+      - "3001:3000"
+    environment:
+      - ENV_VALUE=${ENV_VALUE}
diff --git a/docker/app1-hello/node/Dockerfile b/docker/app1-hello/node/Dockerfile
new file mode 100644
index 0000000..b416a62
--- /dev/null
+++ b/docker/app1-hello/node/Dockerfile
@@ -0,0 +1,7 @@
+FROM node:26-slim
+WORKDIR /app
+COPY package*.json ./
+RUN npm install --production 
+COPY . .
+EXPOSE 3000
+CMD [ "node", "app.js" ]
\ No newline at end of file
diff --git a/docker/app1-hello/python/Dockerfile b/docker/app1-hello/python/Dockerfile
new file mode 100644
index 0000000..1c2f4c1
--- /dev/null
+++ b/docker/app1-hello/python/Dockerfile
@@ -0,0 +1,7 @@
+FROM python:3.10-slim
+WORKDIR /app
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+COPY . .
+EXPOSE 3000
+CMD [ "python", "main.py" ]
diff --git a/docker/app2-tax-calculator/node/service-a/app.yaml b/docker/app2-tax-calculator/node/service-a/app.yaml
new file mode 100644
index 0000000..33c1f7b
--- /dev/null
+++ b/docker/app2-tax-calculator/node/service-a/app.yaml
@@ -0,0 +1,36 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: tax-service-a
+  labels:
+    app: tax-service-a
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: tax-service-a
+  template:
+    metadata:
+      labels:
+        app: tax-service-a
+    spec:
+      containers:
+        - name: tax-service-a
+          image: embarkx/tax-service-a:latest   # <-- changed image name
+          ports:
+            - containerPort: 3000              # <-- matches default port from docs
+          env:
+            - name: TAX_SERVICE_URL
+              value: http://tax-service-b:4000
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: tax-service-a
+spec:
+  selector:
+    app: tax-service-a
+  type: LoadBalancer
+  ports:
+    - port: 80        # external port exposed by the Service
+      targetPort: 3000 # must match containerPort inside the pod
diff --git a/docker/app2-tax-calculator/node/service-b/app.yaml b/docker/app2-tax-calculator/node/service-b/app.yaml
new file mode 100644
index 0000000..ad27c8f
--- /dev/null
+++ b/docker/app2-tax-calculator/node/service-b/app.yaml
@@ -0,0 +1,36 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: tax-service-b
+  labels:
+    app: tax-service-b
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: tax-service-b
+  template:
+    metadata:
+      labels:
+        app: tax-service-b
+    spec:
+      containers:
+        - name: tax-service-b
+          image: embarkx/tax-service-b:stable   # <-- image for Service B
+          ports:
+            - containerPort: 4000              # default exposed port
+          env:
+            - name: PORT
+              value: "4000"                    # required env variable
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: tax-service-b
+spec:
+  selector:
+    app: tax-service-b
+  type: LoadBalancer
+  ports:
+    - port: 4000        # external port exposed by the Service
+      targetPort: 4000  # must match containerPort inside the pod
diff --git a/docker/app2-tax-calculator/node/service-b/index.js b/docker/app2-tax-calculator/node/service-b/index.js
deleted file mode 100644
index 4f80b2d..0000000
--- a/docker/app2-tax-calculator/node/service-b/index.js
+++ /dev/null
@@ -1,12 +0,0 @@
-const express = require("express");
-const app = express();
-const HOSTNAME = process.env.HOSTNAME || require('os').hostname();
-const TAX_TABLE = { IN: 18, US: 8, EU: 20 };
-
-app.get("/tax", (req, res) => {
-  const country = (req.query.country || "DEFAULT").toUpperCase();
-  const tax = TAX_TABLE[country] ?? 10;
-  res.json({ service: "B", country, tax, container: HOSTNAME });
-});
-
-app.listen(4000, () => console.log("Tax Service B running on 4000"));
diff --git a/docker/app2-tax-calculator/node/service-b/package.json b/docker/app2-tax-calculator/node/service-b/package.json
deleted file mode 100644
index 7cbb56d..0000000
--- a/docker/app2-tax-calculator/node/service-b/package.json
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-  "name": "tax-b",
-  "version": "1.0.0",
-  "main": "index.js",
-  "dependencies": { "express": "^5.2.1" }
-}
diff --git a/docker/app2-tax-calculator/python/service-a/Dockerfile b/docker/app2-tax-calculator/python/service-a/Dockerfile
new file mode 100644
index 0000000..1c2f4c1
--- /dev/null
+++ b/docker/app2-tax-calculator/python/service-a/Dockerfile
@@ -0,0 +1,7 @@
+FROM python:3.10-slim
+WORKDIR /app
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+COPY . .
+EXPOSE 3000
+CMD [ "python", "main.py" ]
diff --git a/docker/k8s/nginx/app.yaml b/docker/k8s/nginx/app.yaml
new file mode 100644
index 0000000..92294bc
--- /dev/null
+++ b/docker/k8s/nginx/app.yaml
@@ -0,0 +1,33 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myapp
+  labels:
+    app: myapp
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: myapp
+  template:
+    metadata:
+      labels:
+        app: myapp
+    spec:
+      containers:
+        - name: myapp
+          image: nginx:latest
+          ports:
+            - containerPort: 80
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: myapp
+spec:
+  selector:
+    app: myapp
+  type: LoadBalancer
+  ports:
+    - port: 80        # external port exposed by the Service
+      targetPort: 80  # must match containerPort inside the pod
diff --git a/docker/app2-tax-calculator/node/service-a/index.js b/docker/k8s/nginx/index.js
similarity index 100%
rename from docker/app2-tax-calculator/node/service-a/index.js
rename to docker/k8s/nginx/index.js
diff --git a/docker/app2-tax-calculator/node/service-a/package.json b/docker/k8s/nginx/package.json
similarity index 100%
rename from docker/app2-tax-calculator/node/service-a/package.json
rename to docker/k8s/nginx/package.json
diff --git a/docker/k8s/yamal/app.yaml b/docker/k8s/yamal/app.yaml
new file mode 100644
index 0000000..3b20620
--- /dev/null
+++ b/docker/k8s/yamal/app.yaml
@@ -0,0 +1,32 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: myapp
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: myapp
+  template:
+    metadata:
+      labels:
+        app: myapp
+    spec:
+      containers:
+        - name: myapp
+          image: nginx
+          ports:
+            - containerPort: 80
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: myapp
+spec:
+  selector:
+    app: myapp
+  type: NodePort
+  ports:
+    - port: 80
+      targetPort: 80
+      nodePort: 32000
diff --git a/docker/k8s/yamal/service.yaml b/docker/k8s/yamal/service.yaml
new file mode 100644
index 0000000..c5f738d
--- /dev/null
+++ b/docker/k8s/yamal/service.yaml
@@ -0,0 +1,12 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: myapp
+spec:
+  selector:
+    app: myapp
+  type: NodePort
+  ports:
+    - port: 80
+      targetPort: 80
+      nodePort: 32000