#+TITLE: ROSA Ruby On Rails Workshop
#+AUTHOR: James Blair, Shawn Gerrard
#+DATE: <2023-08-18 Fri 13:30>

* Introduction

This document captures the setup steps for a 90-minute, hands-on Ruby On Rails workshop on Openshift.

Within the session, participants will:
 - Work with a Ruby codebase in Bitbucket.
 - Deploy the application on Openshift.
 - Create continuous delivery pipelines with Tekton.

* Pre-requisites

 This guide assumes you have an existing Openshift 4.10+ cluster with cluster admin permissions.

* 1 - Preparing the cluster

1. Log in to the cluster in your terminal with the ~oc~ cli.

   #+begin_src bash
oc login --server <URL> --token <TOKEN>
   #+end_src

* 2 - Deploy Bitbucket

Now that we're logged into the cluster, let's create the namespace to deploy Bitbucket into.

#+begin_src bash :results output
oc new-project bitbucket
#+end_src

#+RESULTS:
#+begin_example
Already on project "bitbucket" on server "https://api.rosa-7lpn7.2pqm.p1.openshiftapps.com:6443".

You can add applications to this project with the 'new-app' command. For example, try:

    oc new-app rails-postgresql-example

to build a new example application in Ruby. Or use kubectl to deploy a simple Kubernetes application:

    kubectl create deployment hello-node --image=k8s.gcr.io/e2e-test-images/agnhost:2.33 -- /agnhost serve-hostname

#+end_example

Once the namespace is created we can deploy Bitbucket using the official Bitbucket image from Atlassian.

#+begin_src bash :results output
oc new-app --image docker.io/atlassian/bitbucket-server --name bitbucket
#+end_src

#+RESULTS:
#+begin_example
--> Found container image 525a6bc (3 days old) from docker.io for "docker.io/atlassian/bitbucket-server"

    ,* An image stream tag will be created as "bitbucket:latest" that will track this image

--> Creating resources ...
    imagestream.image.openshift.io "bitbucket" created
    deployment.apps "bitbucket" created
    service "bitbucket" created
--> Success
    Application is not exposed. You can expose services to the outside world by executing one or more of the commands below:
     'oc expose service/bitbucket'
    Run 'oc status' to view your app.
#+end_example

Now, let's verify that the Bitbucket pod started successfully.

#+begin_src bash :results output
oc get pods --namespace bitbucket

#+end_src

#+RESULTS:
: NAME                         READY   STATUS    RESTARTS   AGE
: bitbucket-56d9849bbf-7922z   1/1     Running   0          2m36s

As this is running successfully, let's expose it with a ~route~ so that we can access it from our web browser.

#+begin_src bash :results output
oc create route edge bitbucket --service=bitbucket --port=7990
oc get route --namespace bitbucket
#+end_src

#+RESULTS:
: route.route.openshift.io/bitbucket created
: NAME        HOST/PORT                                                       PATH   SERVICES    PORT   TERMINATION   WILDCARD
: bitbucket   bitbucket-bitbucket.apps.rosa-7lpn7.2pqm.p1.openshiftapps.com          bitbucket   7990   edge          None

Once we open the Bitbucket route in our browser, we need to follow a short setup process manually before we can continue with the rest of our automation.

 1. Select your language ~English~.
 2. Select ~internal~ and click ~Next~.

You'll then be prompted for an Atlassian license key. For the purposes of this workshop, we'll be generating a new trial license [[https://my.atlassian.com/license/evaluation][here]].

Copy the ~Server ID~ into the Bitbucket setup screen and click ~Generate License~.

Copy the generated license key into the text box for the Bitbucket license key and click ~Next~.

On the Bitbucket setup screen enter details for your administrative user and click ~Go to Bitbucket~.

* 3 - Configure Bitbucket

With our Bitbucket server successfully deployed, let's configure it for the workshop.

First step is to create additional users.

#+begin_src bash :results output
source .env
for user in 1 2; do
  bitbucket_route=$(oc get route --namespace bitbucket | awk '{print $2}'  | tail -n 1)

echo curl -v --user "admin:${bitbucket_password}" \
       --request "POST" \
       --location \
       --header "'application/x-www-form-urlencoded'" \
       --data-raw "username=user${user}&fullname=user${user}&email=user${user}%40example.com&password=${bitbucket_user_password}&confirmPassword=${bitbucket_user_password}"
https://${bitbucket_route}/rest/api/latest/admin/users?Create"

        name=user${user}&password=${bitbucket_user_password}&displayName=user${user}&emailAddress=user${user}%40example.com" \
       2>&1
done
#+end_src