Sendmail config files by location, environment, and hostgroup

gd-mta::sendmail.pp

# 3.2.4 (Puppet Enterprise 3.0.1)
create_resources('gd-mta::sendmail::copy_to_mail', {
    access           => {},
    aliases          => {},
    authinfo         => { mode => '0440' },
    domaintable      => {},
    local-host-names => {},
    mailertable      => {},
    relay-domains    => {}
  })

  # Copy to mail based on environment, hostgroup, or default
  define copy_to_mail ( $mode = '0444' ) {
    file {"/etc/mail/${name}":
      ensure => file,
      owner  => 'root',
      group  => 'mail',
      mode   => $mode,
      source => ["puppet:///modules/gd-mta/etc/mail/${name}/${::certname}",
                 "puppet:///modules/gd-mta/etc/mail/${name}/${::location}.${::environment}.${::hostgroup}",
                 "puppet:///modules/gd-mta/etc/mail/${name}/${::environment}-${::hostgroup}.${::location}",
                 "puppet:///modules/gd-mta/etc/mail/${name}/${::hostgroup}.${::location}",
                 "puppet:///modules/gd-mta/etc/mail/${name}/${::environment}-${::hostgroup}",
                 "puppet:///modules/gd-mta/etc/mail/${name}/${::hostgroup}",
                 "puppet:///modules/gd-mta/etc/mail/${name}/default",],
      notify => Exec['sendmail-make'],
    }
  }
  
# This is creating a directory structure like so -- instead of files
/sudo:root@vagrant:/etc/mail $ ls -la
total 266
drwxr-xr-x  10 root           root      4096 2014-07-23 14:48 .
drwxr-xr-x  75 root           root      4096 2014-07-23 14:48 ..
-rw-r--r--   1 root           root        92 2009-05-20  2009 Makefile
dr-xr-xr-x   2 root           mail      4096 2014-07-23 14:47 access
-rw-r-----   1 root           root     12288 2014-07-23 14:48 access.db
dr-xr-xr-x   2 root           mail      4096 2014-07-23 14:47 aliases
-rw-r--r--   1 root           root         0 2013-11-27  2013 aliasesdb-stamp
dr-xr-x---   2 root           mail      4096 2014-07-23 14:47 authinfo
-rw-r--r--   1 root           vagrant    324 2014-07-23 14:47 clamav-milter.conf
dr-xr-xr-x   2 root           mail      4096 2014-07-23 14:48 domaintable
-rw-r-----   1 root           root     12288 2014-07-23 14:48 domaintable.db
-rw-r--r--   1 root           vagrant   5683 2014-07-23 14:47 greylist.conf
-rw-r--r--   1 root           root      5584 2010-11-11  2010 helpfile
dr-xr-xr-x   2 root           mail      4096 2014-07-23 14:47 local-host-names
dr-xr-xr-x   2 root           mail      4096 2014-07-23 14:47 mailertable
-rw-r-----   1 root           root     12288 2014-07-23 14:48 mailertable.db
-rwxr-xr-x   1 root           root      2700 2009-05-20  2009 make
dr-xr-xr-x   2 root           mail      4096 2014-07-23 14:47 relay-domains
-rw-r--r--   1 root           root     63440 2014-07-23 14:48 sendmail.cf
-rw-r--r--   1 root           root     58452 2013-11-27  2013 sendmail.cf.bak
-rw-r--r--   1 root           root      3252 2014-07-23 14:47 sendmail.mc
drwxr-xr-x   5 root           root      4096 2014-07-23 14:47 spamassassin
-rw-r--r--   1 root           root     41521 2010-11-11  2010 submit.cf
-rw-r--r--   1 root           root       941 2010-11-11  2010 submit.mc
-rw-r--r--   1 root           root       127 2007-04-12  2007 trusted-users
-rw-r-----   1 root           root     12288 2014-07-23 14:48 virtusertable.db

Although caching was a problem, the issue lies with the resulting expansion of variables, or lack there-of. If Puppet sees a directory as a path resolution for a source, as it does in the first line, it will install a directory, even if ensure => file is used. I would expect this to give error or skip the path, but that is not the case. We have chosen to re-name our source files with the pattern puppet://modules/gd-mta/mail/${name}_${::fqdn}, such that a directory will never be returned as a path.

Here's the updated defined type:

# Copy to mail based on environment, hostgroup, or default
define copy_to_mail ( $mode = '0444' ) {
  file {"/etc/mail/${name}":
    ensure => 'file',
    owner  => 'root',
    group  => 'mail',
    mode   => "$mode",
    source => ["puppet:///modules/gd-mta/etc/mail/${name}_${::fqdn}",
                      "puppet:///modules/gd-mta/etc/mail/${name}_${::environment}-${::hostgroup}.${::location}",
                      "puppet:///modules/gd-mta/etc/mail/${name}_${::hostgroup}.${::location}",
                      "puppet:///modules/gd-mta/etc/mail/${name}_${::environment}-${::hostgroup}",
                      "puppet:///modules/gd-mta/etc/mail/${name}_${::hostgroup}",
                      "puppet:///modules/gd-mta/etc/mail/${name}_default",],
    notify => Exec['sendmail-make'],
  }    
}

In every case, the resulting path in the source spec will resolve to a file name, not a directory.