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``` * Test the web application by accessing the public IP address of your EC2 instance in a web browser. ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688842209754/e1f3917d-168e-42f3-903b-6b40f623a94e.jpeg align="center") ### Step 4: Monitor the EC2 instance using Amazon CloudWatch * Go to the Amazon CloudWatch service in the AWS Management Console. * Create a new CloudWatch dashboard. ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688842666962/65028eea-06dc-4043-8f09-a6c9cc5f1611.jpeg align="center") * Add widgets to monitor key metrics of your EC2 instance, such as CPU utilization, network traffic, and disk usage. ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688843106753/325f7eda-5e32-4e39-9a60-88eeafdf092a.jpeg align="center") * Set up CloudWatch alarms to receive notifications when certain thresholds are exceeded. ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688843786754/3942322c-5964-424d-9939-59fe3c83945f.jpeg align="center") ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688843900539/c4ad39ac-41f5-4e71-af33-a2b4f7d4b183.jpeg align="center") ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688843950090/8d7b908c-dcd3-4b90-8582-c8b5c0bb2a2c.jpeg align="center") * Monitor the performance of your EC2 instance and troubleshoot any issues that arise. ## Task 2: Create an Auto Scaling Group and Monitor Performance ### Step 1: Create an Auto Scaling group using the AWS Management Console * Navigate to the Auto Scaling service in the AWS Management Console. * Click on "Create Auto Scaling group" and follow the wizard to configure your group. A template of the existing EC2 is required to create an ASG. ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688845512809/e9d94a91-6a2a-43bc-847f-ed155bdfbda8.jpeg align="center") * Navigate to the existing EC2 instance and create a template ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688845977741/db7109dd-3be9-48fb-8306-7922b7e1b580.jpeg align="center") * Specify the desired capacity, instance type, and other settings. * Set up scaling policies based on demand or schedule. * Configure the desired monitoring and health checks for your instances. ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688846490126/26630eba-b10b-482d-8de4-21b09b8cde9b.jpeg align="center") ### Step 2: Use Amazon CloudWatch to monitor the performance of the Auto Scaling group * You can navigate to the Monitoring section of the Auto Scaling Group to view the monitored metrics. ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688846785459/27466319-31b3-4517-80cd-fe9357363b2d.jpeg align="center") * You can add the above metrics to the dashboard created earlier. ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688847053047/2e4ba2ff-7e12-4e5d-a23d-c371d0a4775f.jpeg align="center") * Set up CloudWatch alarms to receive notifications using the available metrics. ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688847200021/5924847b-425d-4755-bee4-5c40008f1090.jpeg align="center") * Monitor the performance of your Auto Scaling group and troubleshoot any issues that arise. ### Step 3: Use the AWS CLI to view the state of the Auto Scaling group and the EC2 instance * Install the AWS CLI on your local machine if you haven't already. ```xml sudo apt install awscli ``` * Configure the AWS CLI with your AWS credentials. ```xml aws configure ``` * Use the AWS CLI commands to view the state of your Auto Scaling group, such as the number of instances running and the scaling activities. ```xml aws autoscaling describe-auto-scaling-groups ``` ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688847562883/fcb77c17-7506-4e42-8f6d-505c4af262e7.jpeg align="center") * Verify that the correct number of instances are running and that the Auto Scaling group is functioning as expected. ```xml aws ec2 describe-instances ``` ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688847662953/db1b6bf6-3d21-4d6a-aeed-0a27a9d4d415.jpeg align="center") Congratulations! You have completed the tasks for Day 47 of the #90DaysOfDevOps Challenge. By launching an EC2 instance, deploying a web application, creating an Auto Scaling group, and monitoring the performance using Amazon CloudWatch, you have gained valuable hands-on. Stay tuned for a new AWS service on day 48.