Spring boot and docker deployment details

This article introduces the deployment of spring boot and docker. I hope it will be helpful to you

Enable docker remote access

First, you need to enable the docker remote access function so that remote operations can be performed.

CentOS 6

Modify the / etc / default / docker file to take effect after restarting (service docker restart).

CentOS 7

Open / usr / lib / SYSTEMd / system / docker Service file, modify the line execstart.

Effective after restart

Is the test effective

New Maven project

pom. The XML configuration is as follows:

Imagename: Specifies the name of the image

Dockerdirectory: Specifies the location of the dockerfile

Dockerhost: Specifies the docker remote API address

Resources: refers to the files that need to be put together with dockerfile and used when building the image. Generally, the application jar package needs to be included

Create a Java class

Create dockerfile

Create a file named dockerfile in Src / main / docker directory. The configuration is as follows:

From Java: refers to the java image officially provided on the docker hub. With this basic image, the dockerfile can directly obtain its status through the from instruction - that is, Java has been installed in the container, and then run the spring boot application through a custom command.

Volume / tmp: create the / tmp directory and persist it to the docker data folder, because the embedded Tomcat container used by spring boot uses / tmp as the working directory by default.

ADD docker-springboot-0.0. 1-SNAPSHOT. jar app. Jar: copy the application jar package to / app.jar jar

Entrypoint: indicates the command executed by default after the container is run

The complete directory structure is as follows:

Run the following command to create a docker image: package docker: build

Docker start image

Check whether the project is uploaded successfully

Start mirroring

Access via browser

The above is the whole content of this article. I hope it will be helpful to your study, and I hope you can support programming tips.