1.ubuntu16.04 install Docker
Install refer to https://www.cnblogs.com/blog-rui/p/11244023.html
During install process:sudo apt-get install docker-ce, encount problems like:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
** docker-ce : Depends: containerd.io (>= 1.4.1) but it is not going to be installed**
E: Unable to correct problems, you have held broken packages.
Solutions:
refer to https://blog.csdn.net/qq_40423339/article/details/87885086
Install assigned version can resolve the problem.
2.Docker differ from VM
https://www.zhihu.com/question/48174633