Understood ELB (Elastic Load Balancer) and Auto Scaling Group in EC2. Experienced in live load balancing, auto scaling, and self-healing concepts. Also routed traffic with Route 53 for a custom domain.
Day 87 of My Java Backend Journey
- Understand docker compose and implemented it using Spring Boot and psql
- Concept of mullti stage build
- Local Build
- Build directly inside Docker (single stage)
- Multlti stage build - Reduce image size
Day 86 of My Java Backend Journey
- Basics of Docker
- Virtualization vs Containerization
- Docker Architecture
- Installing Docker on EC2 + Common Issues
- Docker Terminologies (Image, Container, Dockerfile)
- Commonly Used Commands
- Running a Spring Boot inside Docker
Always use constructors to create objects.
Setters won’t give compile-time errors if a new field is added later — leading to missing data.
I’ve faced this personally.
Use constructors for safer, complete object creation!
#java#oops
Used inner class for the first time in a real project to group chapters by subjectId and classId. I created a static key class and used groupingBy in Java Streams. While doing this, I revised equals() and hashCode(). No better way to learn this than by applying it in project.
Just learned a tough lesson today!
Code that works locally doesn’t always work in production.
Deployed a Spring Boot JAR & hit a ClassPathResource error while loading templates from resources.
Reminder: test JARs like real prod!
#Java#SpringBoot#linux
Need to take a step back. Feeling like I’m forgetting the DSA I’ve learned so far . Covered linear data structures but need more practice . For the next 1 week , I’ll revise all the concepts and patterns again .
Sometimes, it feels like development is easier than DSA
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