OpenShiftTraining/Übungen_Teil_II.txt at master · thomaswetzler/OpenShiftTraining · GitHub

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+===============================================================================
+ Übungen Einführung OpenShift Teil II
+
+ T-Systems
+ PaaS Training
+ Einführung in OpenShift
+
+===============================================================================

4 - Datenbank Pod hinzufügen
============================

a - DB Pod hinzufügen
=====================
In der GUI aus dem "Catalog" das Image "Postgresql Persistant" auswählen.
-> Add to Project
	Search "Postgresql"
	DBStorage -> Postgresql Persistant
Folgende Werte sind einzugeben:
Field Name                   |  What to enter | Description
-----------------------------+----------------+----------------------------------------------------------------------
Memory limit                 |  512Mi         | Since this is a small database, we only need 512 megabytes of memory.
Database service name        |  postgresql    | The name of the resulting OpenShift service.
PostgreSQL user              |  insult        | The username that has permission to use the database.
PostgreSQL password          |  insult        | The password for the user.
PostgreSQL database name     |  insultdb      | The name of the initial database that will be created.
Volume Capacity              |  1Gi           |


b - Setzen der Environment Variablen in der "Insults"-JAVA Instanz
==================================================================
> oc env dc insults -e POSTGRESQL_USER=insult -e PGPASSWORD=insult -e POSTGRESQL_DATABASE=insultdb (deploymentconfig)


c - Create Schema & Entries (Antipattern!!!!)
=============================================
> oc get pods
> oc rsh <postgresql pod name aus obigen command>
	- cd /tmp
	- curl https://raw.githubusercontent.com/thomaswetzler/insults-app/master/insults.sql > insults.sql
	- psql -h $POSTGRESQL_SERVICE_HOST -p $POSTGRESQL_SERVICE_PORT -U $POSTGRESQL_USER $POSTGRESQL_DATABASE < insults.sql
	- psql insultdb
	- \dt
	- select * from noun;
	- \q

d - Änderung am Coding der Web Applikation
==========================================
Trainer wird neuen Branch im Git erstellen...

e - Redeploy der "Insults"-JAVA Instanz
=======================================
> oc start-build insults

f - Test Application
====================
Webbrowser Internet