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Docker-DCO-1.1-Signed-off-by: Sven Dowideit <SvenDowideit@home.org.au> (github: SvenDowideit)
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Sven Dowideit 2014-02-18 13:23:18 +10:00
parent b05602a0fe
commit 29f7e1bfcb
1 changed files with 10 additions and 11 deletions
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21
docs/sources/examples/python_web_app.rst
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@ -9,7 +9,7 @@ Python Web App
.. include:: example_header.inc .. include:: example_header.inc
While using Dockerfiles is the preffered way to create maintainable While using Dockerfiles is the preferred way to create maintainable
and repeatable images, its useful to know how you can try things out and repeatable images, its useful to know how you can try things out
and then commit your live changes to an image. and then commit your live changes to an image.
@ -62,8 +62,8 @@ Commit the container to create a new image
------------------------------------------ ------------------------------------------
Save the changes we just made in the container to a new image called Save the changes we just made in the container to a new image called
``/builds/github.com/hykes/helloflask/master``. You now have 3 different ``/builds/github.com/shykes/helloflask/master``. You now have 3 different
ways to refer to the container, name, short-id ``c8b2e8228f11``, or ways to refer to the container: name ``pybuilder_run``, short-id ``c8b2e8228f11``, or
long-id ``c8b2e8228f11b8b3e492cbf9a49923ae66496230056d61e07880dc74c5f495f9``. long-id ``c8b2e8228f11b8b3e492cbf9a49923ae66496230056d61e07880dc74c5f495f9``.
.. code-block:: bash .. code-block:: bash
@ -76,12 +76,11 @@ Run the new image to start the web worker
----------------------------------------- -----------------------------------------
Use the new image to create a new container with Use the new image to create a new container with
network port 5000, and return the container ID and store in the network port 5000 mapped to a local port
``WEB_WORKER`` variable (rather than naming a container/image, you can use the ID's).
.. code-block:: bash .. code-block:: bash
$ WEB_WORKER=$(sudo docker run -d -p 5000 /builds/github.com/hykes/helloflask/master /usr/local/bin/runapp) $ sudo docker run -d -p 5000 --name web_worker /builds/github.com/shykes/helloflask/master /usr/local/bin/runapp
- **"docker run -d "** run a command in a new container. We pass "-d" - **"docker run -d "** run a command in a new container. We pass "-d"
@ -94,7 +93,7 @@ network port 5000, and return the container ID and store in the
View the container logs View the container logs
----------------------- -----------------------
View the logs for the new container using the ``WEB_WORKER`` variable, and View the logs for the new ``web_worker`` container and
if everything worked as planned you should see the line ``Running on if everything worked as planned you should see the line ``Running on
http://0.0.0.0:5000/`` in the log output. http://0.0.0.0:5000/`` in the log output.
@ -103,7 +102,7 @@ terminal and continue with the example while watching the result in the logs.
.. code-block:: bash .. code-block:: bash
$ sudo docker logs -f $WEB_WORKER $ sudo docker logs -f web_worker
* Running on http://0.0.0.0:5000/ * Running on http://0.0.0.0:5000/
@ -118,7 +117,7 @@ should see the line ``Hello world!`` inside of your console.
.. code-block:: bash .. code-block:: bash
$ WEB_PORT=$(sudo docker port $WEB_WORKER 5000 | awk -F: '{ print $2 }') $ WEB_PORT=$(sudo docker port web_worker 5000 | awk -F: '{ print $2 }')
# install curl if necessary, then ... # install curl if necessary, then ...
$ curl http://127.0.0.1:$WEB_PORT $ curl http://127.0.0.1:$WEB_PORT
@ -137,8 +136,8 @@ running, it will still be listed here with a status of 'Exit 0'.
.. code-block:: bash .. code-block:: bash
$ sudo docker stop $WEB_WORKER $ sudo docker stop web_worker
$ sudo docker rm $WEB_WORKER pybuilder_run $ sudo docker rm web_worker pybuilder_run
$ sudo docker rmi /builds/github.com/shykes/helloflask/master shykes/pybuilder:latest $ sudo docker rmi /builds/github.com/shykes/helloflask/master shykes/pybuilder:latest
And now stop the running web worker, and delete the containers, so that we can And now stop the running web worker, and delete the containers, so that we can