openshift-docs/modules/getting-started-cli-deploying-python-app.adoc

// Module included in the following assemblies:
//
// * getting-started/openshift-cli.adoc

:_content-type: PROCEDURE
[id="getting-started-cli-deploying-python-app_{context}"]
= Deploying a Python application

The following procedure deploys a back-end service for the `parksmap` application. The Python application performs 2D geo-spatial queries against a MongoDB database to locate and return map coordinates of all national parks in the world.

The deployed back-end service is `nationalparks`.

.Prerequisites

* You must have access to an {product-title} cluster.
* You must have installed the OpenShift CLI (`oc`).
* You have a deployed image.

.Procedure

. To create a new Python application, enter the following command:
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[source,terminal]
----
$ oc new-app python~https://github.com/openshift-roadshow/nationalparks-py.git --name nationalparks -l 'app=national-parks-app,component=nationalparks,role=backend,app.kubernetes.io/part-of=national-parks-app,app.kubernetes.io/name=python' --allow-missing-images=true
----
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.Example output
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[source,text]
----
--> Found image 0406f6c (13 days old) in image stream "openshift/python" under tag "3.9-ubi8" for "python"

    Python 3.9
    ----------
    Python 3.9 available as container is a base platform for building and running various Python 3.9 applications and frameworks. Python is an easy to learn, powerful programming language. It has efficient high-level data structures and a simple but effective approach to object-oriented programming. Python's elegant syntax and dynamic typing, together with its interpreted nature, make it an ideal language for scripting and rapid application development in many areas on most platforms.

    Tags: builder, python, python39, python-39, rh-python39

    * A source build using source code from https://github.com/openshift-roadshow/nationalparks-py.git will be created
      * The resulting image will be pushed to image stream tag "nationalparks:latest"
      * Use 'oc start-build' to trigger a new build

--> Creating resources with label app=national-parks-app,app.kubernetes.io/name=python,app.kubernetes.io/part-of=national-parks-app,component=nationalparks,role=backend ...
    imagestream.image.openshift.io "nationalparks" created
    buildconfig.build.openshift.io "nationalparks" created
    deployment.apps "nationalparks" created
    service "nationalparks" created
--> Success
----

. To create a route to expose your application, `nationalparks`, enter the following command:
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[source,terminal]
----
$ oc create route edge nationalparks --service=nationalparks
----
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.Example output
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[source,terminal]
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route.route.openshift.io/parksmap created
----

. To retrieve the created application route, enter the following command:
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[source,terminal]
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$ oc get route
----
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.Example output
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[source,terminal]
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NAME             HOST/PORT                                                           PATH   SERVICES        PORT       TERMINATION   WILDCARD
nationalparks    nationalparks-user-getting-started.apps.cluster.example.com                nationalparks   8080-tcp   edge          None
parksmap         parksmap-user-getting-started.apps.cluster.example.com                     parksmap        8080-tcp   edge          None
----