1. First, prepare a maven project and make it into a jar package as shown in the figure below: Find Maven->package->After running, there is a path below.
2, create a directory under docker
mkdir /mydocker
3, Use Xtfp (this is a software specially used to connect to the virtual machine to upload files) to the packaged java project and pull the jar package under /mydocker
After connecting, find the jar package directly and pull it directly
4, and then create a file in the same directory
vim Dockerfile
5, and edit it (this file is very important!!!)
# The base image uses java
FROM java:8
# author
MAINTAINER xiaoliu
# VOLUME specifies the temporary file directory /tmp Create a temporary file in the host /var/lib/docker directory and connect to the container's /tmp
VOLUME /tmp
# Add the jar package to the container and rename it to ahuan_docker.jar (this is the most important!!!)
ADD ahuan_docker-0.0.1-SNAPSHOT.jar ahuan_docker.jar
# Run the jar package
RUN bash -c 'touch /ahuan_docker.jar'
ENTRYPOINT["java","-jar","/ahuan_docker.jar"]
# expose port
EXPOSE 8080
6, and then start to make this jar package into a mirror image (note that there is a . in front of it!!!)
docker build -t ahuan_docker：1.6 .
Then execute docker images to see a new image
7, and then run the image
docker run -d -p 8080:8080 81ffce3265f0
Execute docker ps after running to see a new container running
Then you can access the interface of the project on the browser, which is the IP+port number+interface path on the virtual machine
Here is a very small maven project, such as displaying helloworld on the page, without connecting to mysql, and not connecting to redis... It just records how to make the jar package into a mirror image and simply run it!