Learning About Puppet

The disclaimer at the top of Learning About Weblocks applies
here.

I’m trying to be good and contribute most of what I’m confused by
back to the
The Puppet Wiki,
but there are a few things that don’t belong there.

Using Schmitt’s exim4 Module


David Schmitt has
quite the module collection going on.

I found installation/usage of the
exim4 module a
bit confusing, so here are my notes.

  • Install his common module. There instructions in the read me; it boils down to “stick this in modules/common and put “import common” somewhere in your manifests”.
  • Install his exim4 module in your modules directory.
  • To actually use it, you’ll want to put “include exim4” somewhere. I put this in my templates.pp for “smarthostclass”, i.e. smarthost mail machines; see Puppet Best Practices.
    • Wherever you did that, you’ll need to define your organization. Before “include exim4” add: $organization = “Some Org”
    • Also: $admin_mail = “user@org.org”
    • If you’re using a smarthost setup (i.e. all mail goes to a central server) add “include exim4::with_smarthost”, and before it put: $smarthost = “mail.org.org”
    • You probably want spamassassin: “include spamassassin”
  • You’ll want to move/copy modules/exim4/conf_with_scanning to modules/exim4/basic_conf. These are the config changes that will be pushed out to the remote /etc/exim4/ directory.
  • Unless you have an old ssmtp installation, I suggest you comment out everything in exim4/files/basic_conf/conf.d/router/140_local_admin_hosts
  • Unless you’re using munin, you’ll need to comment out munin::plugin in modules/exim4/manifests/init.pp