Everytime Apache is started, the pass phrase that you entered will have to be re-entered. If you do not wish to have a password with your certificate, read on the section below.
It is possible to have an Expect script start the Apache server by automatically entering in the password, for example:
#!/usr/bin/expect spawn /usr/local/apache/bin/apachectl startssl set password SSL-Certificate-Password expect "pass phrase:" send "$password\r" expect eof
This is not advisable as the password is out there in plain text. If you do follow this method, it is strongly encouraged to allow only the root user to edit and execute it!