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This article mainly introduces idea how to quickly package the SpringBoot project Docker image and deployment related knowledge, the content is detailed and easy to understand, simple and quick operation, has a certain reference value, I believe that after reading this idea how to quickly achieve the SpringBoot project packaging Docker image and deployment article will have a harvest, let's take a look.

1. Modify the configuration file of docker

Modify the file information path as follows:

/ etc/docker/daemon.json

Add the following to the configuration file:

"hosts": ["tcp://0.0.0.0:2375", "unix:///var/run/docker.sock"]

Note: if you don't have this daemon.json, create one yourself in the / etc/docker/ directory.

Touch daemon.json

Tcp enables remote access, and unix is local access. If local access is not enabled, the following errors will occur when used on the server:

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

After the modification is completed, execute the following command in turn:

# reload configuration file systemctl daemon-reload # restart service systemctl restart docker.service # check whether the default port 2375 netstat-anp is open | grep 2375

two。 Configure port open

Execute the following commands in turn

Add the specified port to be opened: firewall-cmd-- zone=public-- add-port=2375/tcp-- permanent reload the added port: firewall-cmd-- reload query whether the specified port is opened successfully: firewall-cmd-- query-port=2375/tcp

Note: the above configuration is carried out when the firewall is enabled. If the system firewall is not enabled, the above configuration is not required. For example, my server does not have a firewall configured, and the following information is displayed at runtime:

Finally, let's see if our configuration is effective.

Curl http://127.0.0.1:2375/info

If the following message appears, the configuration is successful

3.IDEA installs the Docker plug-in

If you have a higher version of idea, the docker plug-in is built in.

If not, don't worry, we can install it ourselves.

4.IDEA configuration docker

Note: my above 192.168.1.2 is my own server Ip, just change it to your docker server ip.

After clicking Apply, it will pop up in your service

Click on the link and we will find the container information of our docker configuration

5.SpringBoot Integration Docker configuration 5.1 install pom dependency

Install the plug-in: Docker-maven-plugin

Com.spotify docker-maven-plugin 1.0.0 ${project.artifactId} latest Java ninesun@qq.com / ROOT ["java" "- version"] ["java", "- jar" "${project.build.finalName} .jar"] http://192.168.1.2:2375 / ROOT {project.build.directory} ${project.build.finalName} .jar

All my maven configurations are as follows:

4.0.0 org.springframework.boot spring-boot-starter-parent 2.6.6 com.example docker 0.0.1-SNAPSHOT docker docker 11 true true org.springframework.boot spring-boot-starter-web org.springframework.boot Spring-boot-starter-test test org.springframework.boot spring-boot-maven-plugin com.spotify docker-maven-plugin 1.0.0 ${project.artifactId} latest java ninesun@qq.com / ROOT ["java" "- version"] ["java", "- jar" "${project.build.finalName} .jar"] http://192.168.1.2:2375 / ROOT {project.build.directory} ${project.build.finalName} .jar

Note: after we successfully pull the plug-in, we will find that the directory structure becomes as follows:

We need to delete a startup class, otherwise it will lead to packaging failure. I deleted DockerApplication directly.

5.2 build Mirror

Before build image, we need to package the project.

Enter our project directory through cmd

Execution

Mvn docker:build

The following message indicates that the package is successful

Next, back to our idea, we can see

This is the image we packed.

Execute on the server

Docker images

You can also see the information of the image.

5.3 start the mirror

Execute in our server

Docker run-d-name idea-docker-test-p 8089 docker

Note: the reason why I exposed port 8089, as long as it is because of 8080 conflict, it is good to see my own situation to change.

Next, let's visit the test interface we wrote:

You can see that it has been successfully deployed and accessible at the same time.

We can see the log of the image and output that we have just started successfully in Idea.

This is the end of the article on "how idea can quickly package and deploy a Docker image of a SpringBoot project". Thank you for reading! I believe that everyone has a certain understanding of the knowledge of "how to quickly package the SpringBoot project into a Docker image and deploy it". If you want to learn more, you are welcome to follow the industry information channel.

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