change docker compose command

Author: kchandan

hello-world-compose/README.md

@@ -6,7 +6,7 @@
 #### **Build and Start the Services**
 1. Build and start the services:
    ```bash
-   docker-compose up --build
+   docker compose up --build
    ```
 
 2. Verify the services:
@@ -23,17 +23,17 @@
 
 2. **Stop services**:
    ```bash
-   docker-compose stop
+   docker compose stop
    ```
 
 3. **Restart services**:
    ```bash
-   docker-compose restart
+   docker compose restart
    ```
 
 4. **Remove containers and networks**:
    ```bash
-   docker-compose down
+   docker compose down
    ```
 
 ---
@@ -46,7 +46,7 @@
 
 2. Rebuild and restart the service:
    ```bash
-   docker-compose up --build
+   docker compose up --build
    ```
 
 3. Verify the updated response.
@@ -66,7 +66,7 @@
 
 2. Reload Nginx:
    ```bash
-   docker-compose restart nginx
+   docker compose restart nginx
    ```
 
 3. Test the custom 404 error by visiting an invalid path: `http://localhost:8080/nonexistent`.
@@ -76,7 +76,7 @@
 #### **Scaling the Backend Service**
 1. Scale the backend service to 3 instances:
    ```bash
-   docker-compose up --scale backend=3
+   docker compose up --scale backend=3
    ```
 
 2. Observe the container distribution:
@@ -91,7 +91,7 @@
 #### **Clean Up**
 1. Stop and remove all containers, networks, and volumes:
    ```bash
-   docker-compose down -v
+   docker compose down -v
    ```
 
 2. Optionally, remove built images:

lab7-docker-compose-storage-networking.md

@@ -134,7 +134,7 @@ supersecretpassword
 #### **Part 1: Networking**
 1. **Start the Services**:
    ```bash
-   docker-compose up --build
+   docker compose up --build
    ```
 
 2. **Inspect the Network**:
@@ -160,11 +160,11 @@ supersecretpassword
 1. **Check Persistent Data**:
    - Stop and remove the containers:
      ```bash
-     docker-compose down
+     docker compose down
      ```
    - Start the services again:
      ```bash
-     docker-compose up
+     docker compose up
      ```
    - Verify that the data in the `users` table is still intact (persistent storage).
 
@@ -176,7 +176,7 @@ supersecretpassword
 
 3. **Clean Up the Volume**:
    ```bash
-   docker-compose down -v
+   docker compose down -v
    ```
 
 #### **Part 3: Secrets**
@@ -197,7 +197,7 @@ supersecretpassword
    - Modify the `db_password.txt` file with a new password.
    - Restart the `db` service to reflect the change:
      ```bash
-     docker-compose up -d
+     docker compose up -d
      ```
 
 4. **Test with Incorrect Secrets**:
@@ -210,5 +210,5 @@ supersecretpassword
 #### **Clean-Up**
 To remove all containers, networks, volumes, and secrets created during the lab:
 ```bash
-docker-compose down --volumes --remove-orphans
+docker compose down --volumes --remove-orphans
 ```