Linux OSLinux is an open-source operating system just like Windows or macOS but built around: A command-line interface (CLI) File-based everything (including devices and processes) A multi-user, multitasking environment 馃搧 Linux Filesystem Structure (a....Jun 3, 2025路6 min read
Docker & Docker compose, Docker multistage buildsDockerizing Spring boot application # Use an official OpenJDK runtime as a parent image FROM openjdk:17-jdk-slim # Set the working directory in the container WORKDIR /app # Copy the local target directory (generated by Maven) to the container COPY ...May 7, 2025路4 min read
Redis tutorial with commands and spring bootWhat is Redis: It is an in-memory database mostly used for caching. Production way of setting key: User table idname 1harsh 2sharukh <entity>:<id> value set user:1 harsh set user:2 sharukh Data Types in Redis There are various data ...Mar 13, 2025路2 min read
What is KafkaKafka CLI Commands Create new Topics with Partition bin\windows\kafka-topics.bat --bootstrap-server localhost:9092 --create --topic --NewTopic --partitions 3 List all Topics Name bin\windows\kafka-topics.bat --bootstrap-server localhost:9092 --l...Feb 4, 2025路1 min read
Spring securityNote: Whenever the request comes it goes through SecurityFilterChain in spring security SecurityFilterChain The SecurityFilterChain is a sequence of filters that are applied to incoming HTTP requests in a Spring Security configuration. These filte...Dec 22, 2024路13 min read
Threads & Executor Framework in JavaBefore understanding Threads lets understand what happens when java program runs. Code Segment : This stores compiled byte code (machine code) of Java Program. All the thread within same process share same code segment. Data Segment: It conta...Dec 20, 2024路19 min read
Spring Core moduleInversion of Control Spring IoC (Inversion of Control) Container is the core of Spring Framework. It creates the objects, configures and assembles their dependencies, manages their entire life cycle. The Container uses Dependency Injection(DI) to man...Dec 20, 2024路10 min read