Updating the UI certificate

1. Generate a new private key (optional)

2. Generate a certificate signing request:

   dashboard# openssl req -new -subj '/CN=requestedCommonName' -key /dashboard/ssl/key

3. Acquire a certificate

4. SSH to the dashboard, see Dashboard SSH keys to add your SSH login key.
5. Use the manage-ssl-certificate command and paste your PEM format certificate including the lines -----BEGIN CERTIFICATE----- and -----END CERTIFICATE----- then press CTRL+D
6. Now paste the private key in the same way and hit CTRL+D.
7. Glasshouse will restart and then serve traffic using the new certificate.
8. Press 0 to exit the menu