How to use docker build mini install Ubuntu OS on MAC

Always need clear Ubuntu OS environment for test.

So, Quickly deploy an environment is important.

You will need the following things:

• Updated MAC with Mojave
• Install docker in MAC
• Clone Sample Dockerfile (here)

Switch directory with dockerfile & build image

docker build -t [ImageName] .

Check Docker Images

wn.lin:~/ $ docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
ubuntu_16.04_base   latest              02bc891808b1        10 days ago         279MB
ubuntu              16.04               b0ef3016420a        4 weeks ago         117MB

Starting docker instance with Images: ubuntu_16.04_base

docker run -d -P --name [DockerName] --hostname [DockerHostname] [DockerImageName]

Check Docker Instance

wn.lin:~/ $ docker ps -a
CONTAINER ID        IMAGE               COMMAND               CREATED             STATUS                    PORTS                   NAMES
f8daeda00ef5        ubuntu_16.04_base   "/usr/sbin/sshd -D"   10 days ago         Up 7 seconds              0.0.0.0:32768->22/tcp   ubuntu-new

Login into docker instance by port

#ssh root@localhost -p32768

Login permissions are written in the dockerfile

wn.lin:docker/ $ cat Dockerfile| grep -i root
RUN echo 'root:rootpwd' | chpasswd

Enjoy it.

https://blog.wnlin.org