[Solved] Which Dockerfile instruction correctly copies the Spring Boot jar file into the container? — Ans: COPY target/myapp.jar /app/myapp.jar | Spring Boot

Spring Boot - Docker and Deployment

Which Dockerfile instruction correctly copies the Spring Boot jar file into the container?

ACOPY target/myapp.jar /app/myapp.jar

BRUN target/myapp.jar /app/myapp.jar

CADD /app/myapp.jar target/myapp.jar

DMOVE target/myapp.jar /app/myapp.jar

Step-by-Step Solution

Solution:

Step 1: Recall Dockerfile COPY usage
COPY copies files from host to container filesystem.
Step 2: Match correct syntax
COPY target/myapp.jar /app/myapp.jar uses COPY with source then destination paths correctly.
Final Answer:
COPY target/myapp.jar /app/myapp.jar -> Option A
Quick Check:
Dockerfile copy syntax = COPY source destination [OK]

Quick Trick: COPY copies files; RUN executes commands [OK]

Common Mistakes:

Master "Docker and Deployment" in Spring Boot

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Which Dockerfile instruction correctly copies the Spring Boot jar file into the container?