1. The first is to install centos7
2. Recommended reference for installing docker
https://www.jianshu.com/p/ef14131fe900
2.1 docker some commonly used commands
docker ps view container
docker run create container
docker rmi imageId delete container
docker images list index images
Description of each option:
REPOSITORY: indicates the source of the mirrored warehouse
TAG: Mirrored tag
IMAGE ID: Image ID
CREATED: Mirror creation time
SIZE: mirror size
The same warehouse source can have multiple TAGs, representing different versions of the warehouse source. We use REPOSITORY:TAG to define different mirrors.
3. The specific process of springboot as a mirror
3.1. Compile and generate the image (. means the current directory) imageName is set to the name of the image you define
docker build -t imageName .
3.2. Create a container and start
Explain here: Docker container is a runnable instance of the image (the relationship between the image and the container is actually similar to the class and object in Java)
docker run -d -p 8080:8080 imageName
[root@localhost docker]# docker run -d -p 8080:9180 -v /home/work/dockerFile-volte:/tmp imageName
The -d parameter is to let the container run in the background
-p is to do port mapping, at this time, map the 8080 port in the server to the 8085 in the container (the port configuration in the project is 8085) port
-v Mount the directory
With the -v parameter, the host directory before the colon must be an absolute path, and the path after the colon is the path mounted in the mirror.
3.3 tar the container
Then the save parameter is packaged in the format: docker save -o to type the name of the image package mirror
docker save -o project_test.tar imageName
docker save -o project_test.tar REPOSITORY:TAG
3.4 Then transfer the package to another server for deployment or upgrade
First carry out load to export the image operation load: import the image exported using the docker save command.
docker load -i project_test.tar
Then check if there is a mirror
docker images
Then label the image you just imported, the purpose is to put the image you just imported into a certain mirror warehouse (the so-called warehouse is: docker.oa.com:8080/tmf/ and then add the name of the image you want to use :version number)
docker tag project_test:v20191123 docker.oa.com:8080/tmf/project_test:v20191123Then push the mirror image to the warehouse
docker push docker.oa.com:8080/tmf/project_test:v20191123Reference: https://www.cnblogs.com/Dfengshuo/p/12067190.html
https://blog.csdn.net/weixin_37773766/article/details/80702926