Serverless
- Developer write code, and then they deploy the code on the servers, with some software like webservers or app servers to make the business logic work
- To make the functionality work,
- we need a linux or a windows server
- Install webserver software like apache or nginx or install app server like tomcat or node js
- Deploy the code to the server, then your web application will start working
- To make our applications run, we need to care about running webserver or appserver
- There is a new approach, where we need not worry about installing and running app servers/web servers but directly run the functionality this is referred as Serverless.
- Serverless is all about the provider providing server infra and you just host your code as functions.
- AWS offers Serverless by a Service called as AWS Lambda.
- AWS Lambda will not be charged until the application is executed.
- Serverless is the next evolution of cloud computing and is divided into two ideas
- Backend as a Service (Baas):
- Baas allows us t replace server-side components that we code/manage ourselves with off-the-shelf services
- Function as Service (FaaS):
- With Faas we deploy our code as independent functions or operations.
- We configure those functions to be called or triggered , when a specific event or request occurs within the Faas Platform.
- Backend as a Service (Baas):
- AWS has more than hundred different services. Some of them are fairly low level – networking, virtual machine, basic block storage, Above these service, in abstraction comes the component services, databases, platform as a service, messaging service. Then on the top of all comes true application components – user management, machine learning, data analysis
- Sideways of this stack are management services necessary to work with AWS- Security, Cost reporting , deployment and monitoring etc
AWS Lambda
- Lambda is AWS FaaS platform
- In Traditional Software Deployment we realize the application as shown below
- Here comes the FaaS Platform
- AWS Lambda was introduced in 2014 and it continues to grow in scope, maturity and usage till date.
AWS Account Creation
- Create a free tier Refer Here
