Springboot java api which runs inside the docker container, and connection is checked with postman api

• A Basic Dockerfile
  • A Spring Boot application is easy to convert into an executable JAR file. All the Getting Started Guides do this, and every application that you download from Spring Initializr has a build step to create an executable JAR. With Maven, you run ./mvnw install, With Gradle, you run ./gradlew build.
  • A basic Dockerfile to run that JAR would then look like this, at the top level of your project:

  FROM eclipse-temurin:17-jdk-alpine
  VOLUME /tmp
  ARG JAR_FILE
  COPY ${JAR_FILE} app.jar
  ENTRYPOINT ["java","-jar","/app.jar"]
  

• Springboot java api which shows the connection with the postman api through the port:8080(locally), port: 8000 (docker), i've already created the image of the java api:

• Then we start the docker image and direct it to another port:

• And now we can check it from postman client side:

• As we can see it is giving the previously created information from the docker container