Use emqx container in the test
docker run -itd --name emq emqx/emqx:4.2.7
(1) Enter the container as root
1. docker exec -it -u root emq /bin/bash
2. whoami (check the user name, make sure it is root)
(2) Change the time zone
1. apk add -U tzdata (install extension package)
2. cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime (copy files)
3. echo "Asia/Shanghai" > /etc/timezone
4. apk del tzdata (delete unnecessary time zone files)
5. date (verification effect)
(3) Copy the file out
docker cp emq:/etc/timezone /home/emq
docker cp emq:/etc/localtime /home/emq
(4) Save the container as a mirror image
docker commit emq eqm:4.2.7
(5) Export and import images
docker save emq:4.2.7 -o /home/emq-4.2.7.image
docker load -i /home/emq-4.2.7.image
(Mirror) Lanzous Cloud: https://wws.lanzous.com/iVHEMmiivuj