IOT cloud exercise - AWS webapp Ec2 instance

ExpressJS webapp to Amazon AWS.
Exploring use of computer service call as EC2 service, which is used to host ExpressJS webapp.

Steps are as mentioned below:
1. You can create aws account and login..
2. When you create an account, make sure you have downloaded private key. It is require to communicate with aws to transfer files and to login to the server.
3. I have created an instance of Ubuntu server.
4. Create an EC2 instance.. and name it.. In the example it is named as IoTApp1..
5. Instance type is t2.micro and Instance state should be in running state. It takes some time to initialize after creation of an instance.
6. As you see, public ip is used to browse through an web browser. Ex: 3.109.211.221
7. Private key name is IoTFirstApp.pem.
8. To connect with linux machine (as I am created server of ubuntu), need an open ssh client needs to be installed on host.
9. I am using Raspberry pi as my host (192.168.21.213).
10. To connect to ubuntu server (created an instance), select created instance and click on 'connect'
11. Now use the downloaded private key and locate it from the host machine and connect to server using ssh command as shown below:
ssh -i "IoTFirstApp.pem" [email protected]
12. After login, make sure you need to install npm and nodejs on server machine.
sudo apt-get install -y nodejs
npm install
13. Either create an java script source code here, or else copy (using scp) created packages.
14. index.js is express js code to update temperature, humidity & light intensity to the webapp.
15. This can be checked upon starting of the webserver by below command:
npm install
sudo node index.js (use sude as we are using port 80).
16. lets check in dashboard.. it is showing last 5 added records.