Create image in container

interactive mode

bash

sudo docker run -i -t centos /bin/bash

bash

touch hello.txt

bash

exit

You can check it

bash

sudo docker ps -a

Create image
27663a6f8fe8 is ID

bash

sudo docker commit 27663a6f8fe8 bibo/hello

You can check images.

bash

sudo docker images

REPOSITORY          TAG                 IMAGE ID            CREATED              SIZE
bibo/hello          latest              eb521b0050ad        About a minute ago   193MB

You can login it again

bash

sudo docker run -i -t bibo/hello /bin/bash

check it again

bash

ls -la | grep hello

You can use Dockerfile in Vagrant which is for automatic run

bash

vi Dockerfile

Dockerfile

FROM centos
MAINTAINER taro yamada <taro.yamada@bibo.com.ph>
# RUN: It executes when it is built
RUN echo "now building..."
# CMD: It executes when it is running
CMD ["echo", "now running..."]

bash

sudo docker build -t bibobibo/echo .

Sending build context to Docker daemon  8.704kB
Step 1/4 : FROM centos
 ---> 36540f359ca3
Step 2/4 : MAINTAINER taro yamada <taro.yamada@bibo.com.ph>
 ---> Running in 1006acc178a8
 ---> a4edca0b8521
Removing intermediate container 1006acc178a8
Step 3/4 : RUN echo "now building..."
 ---> Running in a697adda2cd7
now building...
 ---> 5fbf0850aedc
Removing intermediate container a697adda2cd7
Step 4/4 : CMD echo now running...
 ---> Running in e96059bd9d52
 ---> 131d7bfb63ed
Removing intermediate container e96059bd9d52
Successfully built 131d7bfb63ed
Successfully tagged bibobibo/echo:latest

You can see it.

bash

sudo docker images | grep bibobibo

You can run it

bash

sudo docker run bibobibo/echo

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