DevNet Associate DEVASC 200-901 Official Certification Guide by Adrian Iliesiu (z-lib.org)

Now you need to tell Docker what port to expose for
networking. In this case, you would expose ports 80 and
443:

EXPOSE 80 443

Next, you create a sharepoint for HTML files in nginx so
that you can give it access to your web files:

VOLUME /usr/share/nginx/html

Finally, set the container to run nginx on launch:

Click here to view code image

CMD ["nginx", "-g", "daemon off;"]

FROM ubuntu:latest

MAINTAINER Cisco Champion ([email protected])

RUN apt-get update && apt-get upgrade -y

RUN apt-get install nginx -y

EXPOSE 80 443

VOLUME /usr/share/nginx/html

CMD ["nginx", "-g", "daemon off;"]

Now that you have a Dockerfile, it’s time to build an
image.

Docker Images

When working with Docker images, you primarily use
the following commands:

build: Builds an image from a Dockerfile.

push: Pushes a local image to a remote registry for storage and

sharing.

ls: List images stored locally.