Skip to content

Latest commit

 

History

History

06_AdvancedDockerfile

Folders and files

NameName
Last commit message
Last commit date

parent directory

..
 
 
 
 

Dockerfile revisited

This is what we usually expect Dockerfile to look like. Many, many sequences of commands...

In complex_app directory you will find a really complex Dockerfile. It will launch all the application stack.

docker build -t advanced .

Run the container

docker run -it -v /var/lib/postgresql:$PWD/data -p 80:80 advanced 

How does the volume work?

Volume is basically a 'shared' resource (directory) between your local workstation and a docker container. In case of PostgreSQL, all the postgres data & metadata will be stored locally on your workstations filesystem,so that it won't be ephemeral as it would by default be.

The -v <container_path>:<workstation_path> switch defines which directory from the container should be shared with certain directory in our workstation.

Please note, that container will continue running, even if path are not correct! No directory will be shared between a container and your laptop, and the container will run just like the VOLUME didn't appear in Dockerfile.