doc: Updated the README.md to mention the pull secret

- Included the create_pull_secret.sh script with registry.redhat.io default.
- Updated and reorganized the README.md for the CLI usage.

README.md

@@ -1,4 +1,4 @@
-# Discovery Helm Chart Repository (downstream)
+# Discovery Helm Chart Repository
 
 This Helm repository contains the helm charts for the RedHat Discovery product.
 
@@ -30,26 +30,15 @@ Within a minute or so then the Discovery Helm Chart will appear in the OpenShift
 ## Installing Discovery using the Helm CLI
 Altenatively, one can download a specific version of the Helm Chart from this repo and install Discovery by using the Helm CLI.
 
-First look at the chart index in this repo to determine which helm chart version to download.
-In [Chart Index](https://quipucords.github.io/discovery-helm-repo/charts/index.yaml), find the Helm Chart `version` that reflects the desired `appVersion` of Discovery.
 
-For example, you can see Helm Chart version `0.9.2` pulls in Discovery `1.5.3`.
-
-Then download the appropriate 
+First, login to the OpenShift cluster and create a project for running discovery. For these examples we will use `discovery-qe`:
 
 ```
-$ mkdir -p ~/discovery-helm
-$ cd ~/discovery-helm
-$ curl -k https://quipucords.github.io/discovery-helm-repo/charts/discovery-0.9.2.tgz \
-    --output discovery-0.9.2.tgz
-$ tar -xzf discovery-0.9.2.tgz
-$ ls -FC
-discovery/    discovery-0.9.2.tgz
+$ oc login https://api.<your_cluster>:6443 -u kubeadmin -p <kubeadmin_password>
+$ oc new-project discovery-qe
 ```
 
-The downloaded and extracted Discovery helm chart 0.9.2 will be in the `discovery` directory
-
-To deploy to your OpenShift cluster, first make sure the Helm CLI is installed:
+Next, make sure the Helm CLI is installed:
 
 On Mac:
 
@@ -59,14 +48,47 @@ $ brew install helm
 
 For all others, please visit [https://helm.sh/docs/intro/install/]()
 
-First, login to the OpenShift cluster and set your working project, for these examples we will use `discovery-qe`:
+For downloading the Discovery image, you need to create a `discovery-pull-secret` that has the credentials needed to access `registry.redhat.io`. The secret can be created using `oc create secret ...` or by using the helper script provided here:
 
 ```
-$ oc login https://api.<your_cluster>:6443 -u kubeadmin -p <kubeadmin_password>
-$ oc project discovery-qe
+$ mkdir ~/bin
+$ curl -k https://quipucords.github.io/discovery-helm-repo/bin/create_pull_secret.sh \
+      --output ~/bin/create_pull_secret.sh
+$ chmod 755 ~/bin/create_pull_secret.sh
+$ create_pull_secret.sh "discovery-pull-secret"
+
+Registry server - registry.redhat.io:
+Registry username - <user>: <user-email>
+Registry password: ....
+Registry user e-mail - <user-email>:
+
+Add another docker server (y/n)?n
+Creating pull secret discovery-pull-secret ...
+secret/discovery-pull-secret created
+$ 
+```
+
+
+Next, look at the chart index in this repo to determine which helm chart version to download.
+In [Chart Index](https://quipucords.github.io/discovery-helm-repo/charts/index.yaml), find the Helm Chart `version` that reflects the desired `appVersion` of Discovery.
+
+For example, you can see Helm Chart version `0.9.2` pulls in Discovery `1.5.3`.
+
+Then download the appropriate 
+
+```
+$ mkdir -p ~/discovery-helm
+$ cd ~/discovery-helm
+$ curl -k https://quipucords.github.io/discovery-helm-repo/charts/discovery-0.9.2.tgz \
+    --output discovery-0.9.2.tgz
+$ tar -xzf discovery-0.9.2.tgz
+$ ls -FC
+discovery/    discovery-0.9.2.tgz
 ```
 
-Then, install discovery using the Helm CLI:
+The downloaded and extracted Discovery helm chart 0.9.2 will be in the `discovery` directory
+
+Finally, install discovery using the Helm CLI:
 
 ```
 $ helm install discovery ./discovery --set server.password="EXAMPLE-superadmin1"

bin/create_pull_secret.sh

@@ -0,0 +1,51 @@
+#!/bin/bash
+#
+# Helper script to create a pull secret with one or more registry servers.
+#
+if [ $# -ne 1 ]; then
+  echo "Usage: ${0} <pull-secret-name>"
+  exit 1
+fi
+
+pull_secret="${1}"
+config_json='{"auths":{}}'
+
+while :
+do
+  default="registry.redhat.io"
+  echo
+  reg_server=$(read -p "Registry server - $default: " server; echo $server)
+  reg_server=${reg_server:-$default}
+
+  default="$(whoami)"
+  reg_username=$(read -p "Registry username - $default: " username; echo $username)
+  reg_username=${reg_username:-$default}
+
+  reg_password=$(read -s -p "Registry password: " pwd; echo $pwd)
+  stty echoe; echo
+
+  default="${reg_username}"
+  [[ ! "${default}" =~ "@" ]] && default="${default}@redhat.com"
+
+  reg_email=$(read -p "Registry user e-mail - $default: " email; echo $email)
+  reg_email=${reg_email:-$default}
+
+  config_json=`echo ${config_json} | jq ".auths += {\"${reg_server}\":{\"username\":\"${reg_username}\",\"password\":\"${reg_password}\",\"email\":\"${reg_email}\"}}"`
+
+  echo
+  another=$(read -p "Add another registry server (y/n)?" ans; echo $ans)
+  if [ ! "${another}" = "y" ]; then
+    break
+  fi
+done
+
+config_json_file="$(mktemp)"
+echo -n "${config_json}" > "${config_json_file}"
+echo
+echo "Creating pull secret ${pull_secret} ..."
+oc delete secret/${pull_secret} --ignore-not-found=true
+oc create secret generic ${pull_secret} \
+  --from-file=.dockerconfigjson="${config_json_file}" \
+  --type=kubernetes.io/dockerconfigjson
+rm -f "${config_json_file}"
+