Architecture overview, connecting kubectl from terminal, commands to keep handy, Centralized logging and monioring GKE, — GitHub: https://github.com/nikitha2/Currency-Exchange-Conversion-Microservices-Backend.git Linkedin: https://www.linkedin.com/in/nikitha-gullapalli/ Why do we need Kubernetes? How is it different from Docker? We know from here, docker is a light weight application to deploy our applications. Then why do we need Kubernetes?

Docker, Docker- compose, Docker hub, Images and Containers — GitHub: https://github.com/nikitha2/Currency-Exchange-Conversion-Microservices-Backend.git Linkedin: https://www.linkedin.com/in/nikitha-gullapalli/ In the microservices series so far we looked at: Things to remember while creating a micoservice, Setting up spring cloud management server, Setting up feign and Eureka load balancing, API gateway,

Run, stop, kill, stats, history, pause, unpause, events, etc.. — Deployment Before and After Docker Docker is a light weight application to deploy applications. Lets look at how deployment used to work before and after docker. Before docker if I have to deploy an app, my hardware, OS and software should compliment each other. Say I have two applications one need windows and one needs…

Retry, CircuitBreaker, FallbackMethod, RateLimiting — Github: https://github.com/nikitha2/Currency-Exchange-Conversion-Microservices-Backend.git LinkedIn: https://www.linkedin.com/in/nikitha-gullapalli/ Micro services are often inter dependent. Meaning there are a chain of calls made as shown below. To get response from service 1, service one needs service 2,3,4 to be up and running. But what happens if service4 is down/very slow? Does that mean the chain…

Spring cloud gateway — Api-Gateway is the first layer that is hit when an REST call is made. All common functions common to all services can be done here like authentication, monitoring, logging,etc. Then we can add routes to respective REST call. Api-Gateway gets the instance of the service to call from the naming…

Invoking other microservices made easy with load balancing — Github : https://github.com/nikitha2/Currency-Exchange-Conversion-Microservices-Backend.git Linkedin: https://www.linkedin.com/in/nikitha-gullapalli Feign makes it easy to invoke other microservices. In this article we will make a call from CurrencyConversionService to CurrencyExchangeService. CurrencyExchangeService tells us the conversion rate. Example from USD to INR. Call to http://localhost:8000/currency-exchange/from/USD/to/INR returns the x for 1USD = x INR. …

Using GIT and libraries Spring client, Spring server — Developing a distributed system with multiple micro-services can often. The number of micro-services and their instances (during scale up and scale down) can be a lot. Configuring each of them is too much work. Using a centeralized cloud management service makes it easy to have all the configurations in one…

Swagger,Content negotiation, Exception handing, Filters- dynamic and static,Versioning, Hateos, Customizing REST API response, Actuator, HAL Explorer, Spring-security and Command-line runner — While learning how to develop REST APIs, can across some misc good to know topics. Want to keep all of them in one place for reference. This is a high level document on what each of these topics mean and how they work. …

Events, state, remember, rememberSavable, MutableStateList and viewModel — Full code in Git: https://github.com/nikitha2/ComposeTutorial.git Linkedin: https://www.linkedin.com/in/nikitha-gullapalli/ In Introduction to compose, section Recomposition, I said “every time state changes @Composable functions recompose the UI”. Below are some questions that I got as a followup. Lets try and understand them in this article. We will be using the example from compose…