# Test Knowledge on aws ## Task-01 * ### Launch an EC2 instance using the AWS Management Console and connect to it using SSH. * ### Install a web server on the EC2 instance and deploy a simple web application. * ### Monitor the EC2 instance using Amazon CloudWatch and troubleshoot any issues that arise. * Go to the AWS console and need to launch the EC2 machine and connect it to the terminal using SSH. ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688895907506/6aedef1a-d84b-4f8c-bd3a-2560a7d5625d.png align="center") * Now connect EC2 with the terminal through SSH. ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688896045199/7530a1c0-2de2-417b-9c71-3ddda3749d83.png align="center") * Installing a Web Server and Deploying a Simple Web Application: * Update the package manager: ```yaml sudo apt update -y ``` ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688896633949/0a9db1ad-c1b5-4700-8683-80516f447465.png align="center") * Install Apache HTTP Server: ```yaml sudo apt-get install apache2 -y ``` ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688896759530/8b066183-3f9c-49f5-93f2-d6367cca70c9.png align="center") * Start the Apache service: ```yaml sudo systemctl start apache2 ``` ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688896785097/e7a2c67e-63ce-40ed-adb5-9e713851d0bc.png align="center") ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688896921047/fec9cdf4-2540-4a40-93a5-a07657666f44.png align="center") * Create a simple HTML file to serve as your web application's content: ```yaml cd /var/www/html ls sudo rm -f index.html sudo vim index.html ``` ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688898997692/d8bee5a8-27bf-4b3d-b229-358efea07b5c.png align="center") * Verify that the web server is working by accessing your EC2 instance's public IP address. ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688899022454/1edc1c58-270a-4d5a-a549-cc5de7e5a025.png align="center") Monitoring the EC2 Instance using Amazon CloudWatch: * Open the CloudWatch service in the AWS Management Console and click on **Create alarm**. ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688899590326/647dee8f-618a-4d84-800b-a23fec4bce67.png align="center") * On **Specify metric and conditions** page click on **Select metric.** * Select the EC2 metric to monitor, such as CPU utilization or network traffic. ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688899765490/fbb8a64d-b9ac-4cb6-974e-7a6631068a5b.png align="center") * Add the metric(s) to a CloudWatch dashboard to view real-time graphs. ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688899861240/5831f7b1-6d2d-4dcc-99c5-1db651704176.png align="center") ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688900188507/e42e5cc3-fb76-46d4-a181-5c496f1f642d.png align="center") * Set up CloudWatch Alarms to get notified when certain thresholds are breached. ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688900227392/4adc7e65-4ea9-42cc-b3a4-ecfc2c2058ef.png align="center") --- ## Task-02 * ### Create an Auto Scaling group using the AWS Management Console and configure it to launch EC2 instances in response to changes in demand. * ### Use Amazon CloudWatch to monitor the performance of the Auto Scaling group and the EC2 instances and troubleshoot any issues that arise. * ### Use the AWS CLI to view the state of the Auto Scaling group and the EC2 instances and verify that the correct number of instances are running. * Creating an Auto Scaling Group: * Create template from instance. ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688900773754/cc3fe288-491e-4d00-a96b-e8e68f39bb18.png align="center") ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688900990144/6dc64697-bf0b-417e-a4da-f7b00191840e.png align="center") * Click on "Create Auto Scaling group" and follow the configuration wizard. ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688899267790/5a950b14-74d7-453a-99dc-1f5b7e457fc2.png align="center") * Select the desired launch template for your EC2 instances. * Configure the Auto Scaling group details, such as name, network settings, and instance types. ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688901034199/5e0ac391-cdc6-46c7-82c1-4aa96bf88fe7.png align="center") ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688901135440/8997c379-a663-4d42-a187-e2603450f83a.png align="center") * Set the desired capacity and specify the minimum and maximum number of instances the group can scale to. * Configure scaling policies based on metrics like CPU utilization or network traffic. ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688901283263/48da0bfe-c673-40b6-8b85-105535028bd6.png align="center") ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688901305061/649e64da-06d6-4a13-bb34-63f6b5e528ff.png align="center") * Review the Auto Scaling group settings and create the group. * ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688901358869/a640eaa9-1f86-42f6-aed3-9a1d3002f7e4.png align="center") **Monitoring Auto Scaling Group and EC2 Instances using Amazon CloudWatch:** ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688901614846/84e0d8fd-07da-4cad-8689-475f4df9fcc5.png align="center") * Open the CloudWatch service in the AWS Management Console. * click on "Alarms" to set up alarms for specific metrics. * Create CloudWatch alarms to monitor the performance of your Auto Scaling group and EC2 instances, such as CPU utilization. ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688901801113/c7b172f9-c0f3-4779-971e-19e2bcc17143.png align="center") * Configure actions for the alarms, such as sending notifications. * Monitor the CloudWatch dashboards for insights into the performance of your Auto Scaling group and EC2 instances. ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688901891266/02345376-0fff-4fa2-ad8c-24c6f66bf036.png align="center") **Use the AWS CLI to view the state of the Auto Scaling group and the EC2 instances and verify that the correct number of instances are running.** * Install the AWS CLI on the EC2 instance. * Open a terminal and install AWS CL. ```yaml sudo apt update sudo apt-get install awscli -y aws --version ``` ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688902182679/8067fbf4-8af5-4165-a814-8deb6df5542e.png align="center") ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688902226319/48300fb2-70a9-49e7-8504-c85f89723f71.png align="center") * Provide Access Key ID, Secret Access Key, Region Name and Output Format. ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688902920018/d3592ebc-ea81-478a-895e-71f44b7b6508.png align="center") * Use the following AWS CLI commands to view the state of the Auto Scaling group and the EC2 instances ```yaml aws autoscaling describe-auto-scaling-groups --auto-scaling-group-names #Replace with the name of your Auto Scaling group ``` ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688903270966/968c5da6-27e1-431c-8f50-ba55148e051e.png align="center") ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1688903113293/4e088f1e-077f-4e08-9d92-addc16774b3d.png align="center") --- Thank you for reading. I hope you were able to understand and learn something new from my blog. Happy Learning! Please follow me on Hashnode and do connect with me on LinkedIn [**ArnavSingh**](https://www.linkedin.com/in/arnav-singh-6897b7226/)**.**