for a given cluster-name (NAMESPACE) and a list of hosts, it will create the needed secrets to prepare the deployments. It will ask for the BMC user/password of each host

ztp-cluster-pre-req.sh

#! /bin/bash

if [ $# -lt 2 ]
  then
    echo "Usage: ./script.sh <NAMESPACE> <HOSTNAME_1> ... <HOSTNAME_N>"
    exit 1
fi
export CLUSTERNS=$1
export HOSTNAME=$2

export PULLSECRETCONTENT=$(cat ~/pull-secret.jgato)
export PS64=$(echo -n ${PULLSECRETCONTENT} | base64 -w0)
envsubst <<"EOF" | oc apply -f -
apiVersion: v1
kind: Secret
metadata:
  name: assisted-deployment-pull-secret
  namespace: ${CLUSTERNS}
data:
  .dockerconfigjson: ${PS64}
EOF

echo "Now introduce the credentials for the BMC"
USERNAME=`read -p 'Username: ' tmp; printf $tmp | base64`
PASSWORD=`read -s -p 'Password: ' tmp; printf $tmp | base64`
echo ""

shift
for host in "$@"
do
oc apply -f - <<EOF
apiVersion: v1
kind: Secret
metadata:
  name: $host-bmc-secret
  namespace: $CLUSTERNS
type: Opaque
data:
  username: $USERNAME
  password: $PASSWORD
EOF

done