RHEL handy supplements for an enterprise server build

rhel_supplemental_configuration.sh

echo "Reconfigure RHEL Cockpit to use our intranet wildcard SSL cert:"
sudo su -
export DOMAIN="your.intranet.domainname.here"
cd /etc/cockpit/ws-certs.d
scp [email protected].${DOMAIN}:/etc/httpd/custom-cert/star* .
curl -LO https://cacerts.digicert.com/DigiCertTLSRSASHA2562020CA1.crt.pem
cat DigiCertTLSRSASHA2562020CA1.crt.pem >> star.${DOMAIN}.crt
cat star.${DOMAIN}.crt.key >> star.${DOMAIN}.crt
mv star.${DOMAIN}.crt star.${DOMAIN}.cert
remotectl certificate

## Install PowerShell! ##
# Register the Microsoft RedHat repository
curl https://packages.microsoft.com/config/rhel/7/prod.repo | sudo tee /etc/yum.repos.d/microsoft.repo
# Install PowerShell
sudo yum install -y powershell
# Start PowerShell
pwsh

## Handy MS Teams notification every time the host comes online ##
cat >/etc/rc.d/init.d/zz_itdept_notification.ps1<<__EOF__
#!/opt/microsoft/powershell/6.2.2/pwsh
#Activity Feed - IT-Tool testing team <[email protected]>
$msg  = "Greetings from ${env:HOSTNAME}! I have just come online.`n"
$msg += "`tHostname:  $( hostname --all-fqdns )`n"
$msg += "`tIPaddress: $( hostname --all-ip-addresses )`n"
Send-MailMessage -From "${env:HOSTNAME}[email protected]" -To "[email protected]" -Subject "${env:HOSTNAME} container virtual host online notification" -Body $msg -SmtpServer ${MAILHOST} -verbose
__EOF__