docker build
docker build -t [tag] .
dockerfile example
FROM ubuntu:18.04
COPY . /app
RUN make /app
CMD python /app/app.py
how to create docker image from custom filename
cat DockerFile.debian.foo | docker build -t debian.foo -
docker build from dockerfile
$ docker build - < Dockerfile
multiple run dockerfile
RUN cd /
git clone https://github.com/
cd /fileadmin/
bundle install
rake db:migrate
bundle exec rails runner "eval(File.read 'createTestUser.rb')"
mkdir /pending
mkdir /live
chmod 777 /pending
chmod 777 /live
docker build specify dockerfile
docker build -t [name] -f [Dockerfile]