CODEWITHSUNDEEP
dockerdockerfile
WebQube
WebQube

Reputation: 8971

how do I build a docker image without existing from a docker file

new to dockers.

running this docker build .

this is the Dockerfile

FROM gcr.io/google_appengine/python

# Create a virtualenv for dependencies. This isolates these packages from
# system-level packages.
RUN virtualenv /env

# Setting these environment variables are the same as running
# source /env/bin/activate.
ENV VIRTUAL_ENV /env
ENV PATH /env/bin:$PATH

# Copy the application's requirements.txt and run pip to install all
# dependencies into the virtualenv.
#ADD requirements.txt /app/requirements.txt
#RUN pip install -r /app/requirements.txt

# Add the application source code.
ADD . /app

# Run a WSGI server to serve the application. gunicorn must be declared as
# a dependency in requirements.txt.
CMD gunicorn -b :$PORT main:app

CMD bash1  "while true; do echo hello; sleep 1;done"

CMD ["sh", "while true; do echo hello; sleep 1;done"]
CMD "echo" "Hello docker!"

but after, when I run docker ps I don't see the image.

Upvotes: 0

Views: 2126

Answers (2)

Marcs
Marcs

Reputation: 3838

To build an image you have to use:

docker build -t username/imagename .

You have to use -t to tag your image and give it a name, from the docs:

-t, --tag value Name and optionally a tag in the 'name:tag' format (default [])

Then you can see the list of your images using:

docker images

You are using docker ps which is for listing containers not images.

More info about about images and containers.

Check the documentation on docker build.

Upvotes: 2

matias elgart
matias elgart

Reputation: 1181

use 'docker run ' to create and run a container. all docker build does is create an image.

Upvotes: 1

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