2 inspect the php source code for the sample

2. Inspect the PHP source code for the sample application and create and push a new branch
named s2i to use during this exercise.
2.1. Enter your local clone of the DO180-apps Git repository and checkout the master
branch of the course's repository to ensure you start this exercise from a known good
state:
[[email protected] openshift-s2i]$ cd ~/DO180-apps
[[email protected] DO180-apps]$ git checkout master
...output omitted...
2.2. Create a new branch to save any changes you make during this exercise:
DO180-OCP4.2-en-1-20191105
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Chapter 6 | Deploying Containerized Applications on OpenShift
[[email protected] DO180-apps]$ git checkout -b s2i
Switched to a new branch 's2i'
[[email protected] DO180-apps]$ git push -u origin s2i
...output omitted...
* [new branch] s2i -> s2i
Branch s2i set up to track remote branch s2i from origin.
2.3. Review the PHP source code of the application, inside the the php-helloworld
folder.
Open the index.php file in the /home/student/DO180-apps/php-helloworld
folder:
<?php
print "Hello, World! php version is " . PHP_VERSION . "\n";
?>
The application implements a simple response which returns the PHP version it is
running.
3.
Prepare the lab environment.
3.1. Load your classroom environment configuration.
Run the following command to load the environment variables created in the first
guided exercise:
[[email protected] DO180-apps]$ source /usr/local/etc/ocp4.config
3.2. Log in to the OpenShift cluster.
[[email protected] DO180-apps]$ oc login -u ${RHT_OCP4_DEV_USER} -p \
> ${RHT_OCP4_DEV_PASSWORD} ${RHT_OCP4_MASTER_API}
Login successful
...output omitted...
3.3. Create a new project that contains your RHOCP developer username for the resources
you create during this exercise:
[[email protected] DO180-apps]$ oc new-project ${RHT_OCP4_DEV_USER}-s2i
4. Create a new PHP application using Source-to-Image from the php-helloworld
directory using the s2i branch you created in the previous step in your fork of the DO180-
apps Git repository.
4.1. Use the oc new-app command to create the PHP application.
Important
The following example uses the number sign (#) to select a speicific branch from
the git repository, in this case the s2i branch created in the previous step.
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Chapter 6 | Deploying Containerized Applications on OpenShift
[[email protected] DO180-apps]$ oc new-app -i php:7.1 --name=php-helloworld \
> {RHT_OCP4_GITHUB_USER}/DO180-apps#s2i \
> --context-dir php-helloworld
4.2. Wait for the build to complete and the application to deploy. Verify that the build
process starts with the oc get pods command.
[[email protected] openshift-s2i]$ oc get pods
NAME READY STATUS RESTARTS AGE
php-helloworld-1-build 1/1 Running 0 5s
4.3. Examine the logs for this build. Use the build pod name for this build, php-
helloworld-1-build .
[[email protected] DO180-apps]$ oc logs --all-containers \
> -f php-helloworld-1-build
Cloning " yourgituser /DO180-apps" ...