[Solved] You want to create a Spring Boot application that uses a default profile but switches to staging profile... How can you ensure the staging profile is used only in deployment without changing code? | Spring Boot

Spring Boot - Docker and Deployment

You want to create a Spring Boot application that uses a default profile but switches to staging profile when deployed. How can you ensure the staging profile is used only in deployment without changing code?

AHardcode <code>staging</code> profile in the main application class

BUse a command line argument to activate <code>staging</code> profile during development

CRename <code>application.properties</code> to <code>application-staging.properties</code>

DSet <code>spring.profiles.active=staging</code> as an environment variable on the deployment server

Step-by-Step Solution

Solution:

Step 1: Understand profile activation without code changes
Profiles can be activated via environment variables or command line arguments.
Step 2: Choose environment variable for deployment
Setting 'spring.profiles.active=staging' as an environment variable on the server activates the profile without code changes.
Final Answer:
Set spring.profiles.active=staging as an environment variable on the deployment server -> Option D
Quick Check:
Use env vars to switch profiles without code [OK]

Quick Trick: Use environment variables to activate profiles in deployment [OK]

Common Mistakes:

Hardcoding profiles in code
Renaming default properties file incorrectly
Activating staging profile during development

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How can you ensure the staging profile is used only in deployment without changing code?

Step 1: Understand profile activation without code changes

Step 2: Choose environment variable for deployment

Final Answer:

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