Update Introduction-Docker-lab.md

kchandan · web-flow · commit e73322be9d15 · 2025-01-04T12:07:34.000-05:00
diff --git a/Introduction-Docker-lab.md b/Introduction-Docker-lab.md
@@ -1,3 +1,7 @@
+Here's the updated **Docker Assignment** with clear instructions for running Docker containers in each task:
+
+---
+
 ### **Docker Assignment: Getting Started with Images and Containers**
 
 #### **Objective:**
@@ -8,9 +12,18 @@ Gain hands-on experience with Docker by pulling an image from Docker Hub, buildi
 ### **Assignment Tasks**
 
 #### **Task 1: Pull an Image from Docker Hub**
-1. Use the `docker pull` command to download the official **nginx** image from Docker Hub.
-2. Verify the image is available locally using the `docker images` command.
-3. Run a container from the **nginx** image and expose it on port 8080 of your host.
+1. Use the `docker pull` command to download the official **nginx** image from Docker Hub:
+   ```bash
+   docker pull nginx
+   ```
+2. Verify the image is available locally using the `docker images` command:
+   ```bash
+   docker images
+   ```
+3. Run a container from the **nginx** image and expose it on port 8080:
+   ```bash
+   docker run -d -p 8080:80 nginx
+   ```
 4. Open a web browser and visit `http://localhost:8080` to confirm nginx is running.
 
 ---
@@ -22,23 +35,42 @@ Gain hands-on experience with Docker by pulling an image from Docker Hub, buildi
    FROM nginx:latest
    COPY index.html /usr/share/nginx/html/index.html
    ```
-3. Add a custom `index.html` file to the same directory with personalized content (e.g., "Welcome to my custom nginx!").
+3. Add a custom `index.html` file to the same directory. Use the following content for `index.html`:
+   ```html
+   <!DOCTYPE html>
+   <html lang="en">
+   <head>
+       <meta charset="UTF-8">
+       <meta name="viewport" content="width=device-width, initial-scale=1.0">
+       <title>Custom Nginx</title>
+   </head>
+   <body>
+       <h1>Welcome to My Custom Nginx!</h1>
+       <p>This page is served from a custom Docker image built by you.</p>
+   </body>
+   </html>
+   ```
 4. Build a new Docker image with the command:
    ```bash
    docker build -t custom-nginx .
    ```
-5. Verify the image is built using `docker images`.
 
 ---
 
 #### **Task 3: Run a Container from the Custom Image**
-1. Run a container using the newly built `custom-nginx` image and expose it on port 9090.
+1. Run a container using the newly built `custom-nginx` image and expose it on port 9090:
+   ```bash
+   docker run -d -p 9090:80 custom-nginx
+   ```
 2. Open a web browser and visit `http://localhost:9090` to verify the custom nginx page is displayed.
 
 ---
 
 #### **Task 4: Push the Image to Docker Hub**
-1. Log in to Docker Hub using the `docker login` command.
+1. Log in to Docker Hub using the `docker login` command:
+   ```bash
+   docker login
+   ```
 2. Tag your custom image to match your Docker Hub repository:
    ```bash
    docker tag custom-nginx <your-dockerhub-username>/custom-nginx
@@ -63,8 +95,8 @@ Gain hands-on experience with Docker by pulling an image from Docker Hub, buildi
 
 ### **Evaluation Criteria**
 - Proper execution of all commands and tasks.
-- Successful creation and display of a custom web page.
+- Successful creation and display of the custom web page.
 - Correctly tagged and pushed image to Docker Hub.
 - Clarity and completeness of screenshots and documentation.
 
-This assignment combines basic Docker operations with hands-on practice to reinforce key concepts.
+Let me know if you need further assistance or clarifications!
