Hi all
I've got node definition on the site with server interface, bonding and
TCP/IP configurations inscribed in a per-node [ hash + accompanying
array-of-interface-names ]
(e.g. $array = [ 'eth0', 'eth1' ]
$hash = {
eth0 => {
ipaddress => 1.2.3.4,
... }
eth1 => {
ipaddress => 5.6.7.8,
... }
}
What I have right now works, but is clunky and could probably be written
better.
My 2 questions are:
1. Can I somehow get a list of keys from the hash itself (a list that will
behave like an array that I can feed into a defined type) instead of
"manually" defining $array for this purpose?
2. If you look further down inside in this post, the code (taken from inside
the base class) does this:
[a] gets the hash with the configuration passed in as a global variable
[b] copies the hash elements into local variables (because a local variable
can be double-quoted around, and behave nicely even if it wasn't set and is
blank, whereas a hash element cannot)
[c] invokes the interface-configuration defined type with the local
variables as parameters.
A very messy roundabout way of doing things. Can anyone suggest an easier
way (tho still ultimately has to call base::network-common::interface)
In the node file I have a configuration block that looks like this:
$netiflist = [ 'eth0' ]
$netifcfg = {
eth0 => { ipaddress => "1.2.3.4",
netmask => "255.255.255.0",
gateway => "1.2.3.1",
defaultgateway => "yes" },
}
include base
Then in a subclass of base I have:
class base-subclass {
# Iterate for all the interfaces that need to be configured:
if $netiflist { base::network-common::dointerfaces
{[$netiflist]:}}
}
# the actual defined type:
define base::network-common::dointerfaces() {
# copy hash elements into local variables:
$myipaddress = $netifcfg[$name][ipaddress]
$mynetmask = $netifcfg[$name][netmask]
$mygateway = $netifcfg[$name][gateway]
$mydefaultgateway = $netifcfg[$name][defaultgateway]
$myhwaddress = $netifcfg[$name][hwaddress]
$myroutes = $netifcfg[$name][routes]
$myensure = $netifcfg[$name][ensure]
# and finally use the double-quoted local variables to call the interface
defined type:
base::network-common::interface { $name:
ipaddress => "$myipaddress",
netmask => "$mynetmask",
gateway => "$mygateway",
defaultgateway => "$mydefaultgateway",
hwaddress => "$myhwaddress",
routes => "$myroutes",
ensure => "$myensure"
}
}
...
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