Enabling Docker Remote Access, Configuring IDEA Docker Plugin, and Deploying a Spring Boot Eureka Server

Environment : JDK 1.8+, Maven 3.2+, IntelliJ IDEA, Docker.

Enable Docker remote access (Linux) :

1. Edit docker.service (e.g., vi /usr/lib/systemd/system/docker.service ) and add -H tcp://0.0.0.0:2375 to the ExecStart line.

2. Reload and restart Docker:

systemctl daemon-reload
systemctl start docker

3. Adjust firewall rules if needed.

Enable Docker remote access (Windows) :

In Docker Desktop settings → General, check Expose daemon on tcp://localhost:2375 without TLS .

Install and configure IDEA Docker plugin :

1. Open File → Settings → Plugins , search for "Docker", install and restart IDEA.

2. In File → Settings → Build, Execution, Deployment → Docker , add a new Docker configuration, set the Engine API URL to the Docker host (e.g., http://127.0.0.1:2375 ), and verify the connection.

Create a simple Eureka project (Spring Initializr) and open it in IDEA.

Configure the project :

1. Add docker-maven-plugin to <plugins> in pom.xml (example configuration shown below).

<!--使用docker-maven-plugin插件-->
<plugin>
  <groupId>com.spotify</groupId>
  <artifactId>docker-maven-plugin</artifactId>
  <version>1.0.0</version>
  <executions>
    <execution>
      <id>build-image</id>
      <phase>package</phase>
      <goals>
        <goal>build</goal>
      </goals>
    </execution>
  </executions>
  <configuration>
    <imageName>${project.artifactId}</imageName>
    <imageTags><imageTag>latest</imageTag></imageTags>
    <dockerDirectory>${project.basedir}/src/main/resources</dockerDirectory>
    <dockerHost>http://127.0.0.1:2375</dockerHost>
    <resources>
      <resource>
        <targetPath>/</targetPath>
        <directory>${project.build.directory}</directory>
        <include>${project.build.finalName}.jar</include>
      </resource>
    </resources>
  </configuration>
</plugin>

2. Update application.properties with server port, Eureka settings, etc.

3. Add @EnableEurekaServer annotation to the Spring Boot main class.

Add a Dockerfile (place under src/main/resources ):

FROM java:8
VOLUME /tmp
ADD *.jar app.jar
EXPOSE 9090
ENTRYPOINT ["java", "-Djava.security.egd=file:/dev/./urandom", "-jar", "/app.jar"]

If the base image java:8 is missing, pull it with docker pull java:8 .

Build the image by running mvn package ; the plugin will use the Dockerfile to create an image named eurekaserver:latest .

Create and run the container :

In the IDEA Docker tool window, right‑click the newly built image, choose "Create container", set container name and port binding (e.g., 127.0.0.1:8080:9090 ), then click Run.

Access the service at http://127.0.0.1:8080 to verify the Eureka server is up.

One‑click deployment :

Configure the run configuration to execute Maven package before launch (Activate tool window → Run Maven Goal → package ). After this, each run will rebuild the image and start the container automatically.

With these steps, you have a fully automated workflow to develop, build, and deploy a Spring Boot Eureka service inside Docker directly from IntelliJ IDEA.