[Puppet Users] Fun with hashes and ERB

[Aaron Grewell]

Hi all,
I'm trying to figure out the intersection of hashes and ERB.  I don't know
Ruby, so I put this together from examples available online and predictably
it generates an ERB syntax error.  Can you point me in the right direction?

### Call:
class {'multipath':
    devices => {
        oradata01 => "360050768018280d1f800000000000193",
        oradata02 => "360050768018280d1f800000000000194",
        oradata03 => "360050768018280d1f800000000000195",
    }
}

### Class:
class multipath ($devices) {

    package { "device-mapper-multipath": }

    file { "/etc/multipath.conf":
        mode    => "644",
        content => template("multipath/multipath.conf.erb"),
        notify  => Service["multipathd"],
        require => Package["device-mapper-multipath"],
    } # file

    service { "multipathd":
        ensure  => running,
        enable  => true,
        require => Package["device-mapper-multipath"],
    } # service
} # class mapper

### Template (multipath.conf.erb):

defaults {
        polling_interval        30
        failback                immediate
        no_path_retry           5
        rr_min_io               100
        path_checker            tur
        user_friendly_names     yes
}

devices {
        device {
                vendor                  "IBM"
                product                 "2145"
                path_grouping_policy    group_by_prio
                prio_callout            "/sbin/mpath_prio_alua /dev/%n"
        }
}

multipaths {
    <% devices.each do |alias,wwid| -%>
    multipath {
        wwid    <%= wwid  %>
        alias   <%= alias %>
    }
    <% end -%>
}

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