Project Containerization with Docker

1. Create an executable jar file with Maven and copy the package snapshot name.

   mvn clean package

2. Create a docker file Dockerfile in the root folder and add information that provides specific instructions to Docker such as letting docker COPY the executable jar file from step 1.

3. Create an image from Dockerfile with employee-demo as the image name.

   docker build --tag=employee-demo:latest .

4. Run the container from the created image. Ensure that Docker Desktop is running locally.

   docker run employee-demo

Google Cloud Platform Deployment

The sample app has been deployed to google cloud platform by following the following steps:

1. Login to the Google Cloud Platform with your Google account.

   gcloud auth login

2. Project initialization to run App Engine apps within the central region of the US.

   gcloud app create --region us-central

3. App deployment to App Engine with Maven - Skips tests and packages the project's executable jar file for deployment.

   ./mvn -DskipTests package appengine:deploy

4. Visit the deployed app through a generated URL and test it.

   gcloud app browse

Problem

javax.validation.* does not exist.

Cause

Javax API has been bumped to Jakarta API in Spring Boot 3.x. Therefore, javax.* imports do not exist.

Solution

In the plugin set-up with maven, use:

<configOptions>

    <useSpringBoot3>true</useSpringBoot3>

</configOptions>

Check out these configuration options