[Solved] What will happen if you omit the ENTRYPOINT instruction in a Spring Boot Dockerfile? — Ans: The container will start but the Spring Boot app will not run automatically | Spring Boot

Spring Boot - Docker and Deployment

What will happen if you omit the ENTRYPOINT instruction in a Spring Boot Dockerfile?

AThe container will fail to build

BThe app will start on port 8080 by default

CThe container will start but the Spring Boot app will not run automatically

DDocker will use a default ENTRYPOINT for Java apps

Step-by-Step Solution

Solution:

Step 1: Understand ENTRYPOINT role
ENTRYPOINT defines the command to run when container starts.
Step 2: Consequence of omitting ENTRYPOINT
Without ENTRYPOINT, container starts but no app runs automatically.
Final Answer:
The container will start but the Spring Boot app will not run automatically -> Option C
Quick Check:
ENTRYPOINT missing means no app start [OK]

Quick Trick: ENTRYPOINT runs app; omit it and app won't start [OK]

Common Mistakes:

Master "Docker and Deployment" in Spring Boot

9 interactive learning modes - each teaches the same concept differently

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What will happen if you omit the ENTRYPOINT instruction in a Spring Boot Dockerfile?