Update README

README.md

@@ -321,6 +321,43 @@ Once succesfully completed, you can see the docker image in the `Registry`sectio
                 servicePort: 80
                 path: /
         ```
+
+        * Kubernetes Job
+
+        We will use a `Job` in order to manage django migrations.
+        > Note: Kubernetes jobs are run only once opposed to `Deployments` that run continiously.
+
+        ```yaml
+        apiVersion: batch/v1
+        kind: Job
+        metadata:
+        name: polls-migrations
+        spec:
+        template:
+            spec:
+            containers:
+                - name: django
+                image: ${CI_REGISTRY}/${CI_PROJECT_NAME}/polls:${CI_COMMIT_SHORT_SHA}
+                command: ['python', 'manage.py', 'migrate']
+                env:
+                    - name: DATABASE_NAME
+                    valueFrom:
+                        secretKeyRef:
+                        name: postgresql-credentials
+                        key: database
+                    - name: DATABASE_USER
+                    valueFrom:
+                        secretKeyRef:
+                        name: postgresql-credentials
+                        key: username
+                    - name: DATABASE_PASSWORD
+                    valueFrom:
+                        secretKeyRef:
+                        name: postgresql-credentials
+                        key: password
+            restartPolicy: Never
+        backoffLimit: 5
+        ```
 6. Setup Continuous Delivery in Gitlab CI
 
 ```yaml
@@ -333,7 +370,6 @@ deploy:
     name: mynamespace
     url: https://mynamespace.pasteur.cloud
   script:
-    - yum install gettext -y
     - kubectl delete secret registry-gitlab -n ${NAMESPACE} --ignore-not-found=true
     - kubectl create secret docker-registry -n ${NAMESPACE} registry-gitlab --docker-server=registry-gitlab.pasteur.fr --docker-username=${DEPLOY_USER} --docker-password=${DEPLOY_TOKEN} --docker-email=kubernetes@pasteur.fr
     - envsubst < polls.yaml | kubectl apply -f -