Fix RHEL 7 does not have openvpn-auth-ldap package

[brunoleon]

At the moment there is no openvpn-auth-ldap package under rhel 7
This fix allow the module to still install, though obviously the ldap feature won't be available

[luxflux]

Thanks for your work!
Let's start with this Pull Request as all the others are branches of this one.

So RHEL 6 does have this package but RHEL 7 does not? Did its functionality move into another package? What about the easy-rsa package?

[brunoleon]

Thanks for this modules ;-)
ATM there is no ldap for openvpn on RHEL7 as far as I know.
Easy-rsa is available from RHEL 6.4

[luxflux]

Do you know whats the case for CentOS? Which version of it has which package?

[brunoleon]

For these packages CentOS and RHEL are exactly the same.

[luxflux]

Okay, so I think we should refactor this RHEL/CentOS part of params.pp.

Are the following statements correct?

• CentOS doesn't have any support for LDAP authentication
• RHEL doesn't have any support for LDAP authentication
• CentOS < 6.4 doesn't have an easy-rsa package
• CentOS >= 6.4 has an easy-rsa package
• RHEL 6 doesn't have an easy-rsa package
• RHEL 7 has an easy-rsa package

[brunoleon]

This is correct but I think you do not need to differentiate RHEL from CentOS.
Just us $::osfamily and then narrow down choices per version.

[luxflux]

Finally got the time to fix this. Thank you for your patience.

[retizu]

I've added some notes here that might be worth considering on the next iteration bae0c0e

[luxflux]

There is already an issue for adding openvpn-auth-ldap: #172