4.6. Déployer une application Python

Procédure

1. Pour créer une nouvelle application Python, entrez la commande suivante :

   $ 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

   Exemple de sortie

   --> 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

2. Pour créer une route afin d'exposer votre application, nationalparks, entrez la commande suivante :

   $ oc create route edge nationalparks --service=nationalparks

   Exemple de sortie

   route.route.openshift.io/parksmap created

3. Pour récupérer la route d'application créée, entrez la commande suivante :

   $ oc get route

   Exemple de sortie

   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