Iterate over a hash key/values in Puppet

puppet

Solution

ok i just confirmed that what you can do in your manifest:

define updateAppSetting {
    # get the hashes again because outside vars aren't visible here
    $appSettings = hiera_hash('appSettings')

    # $name is the key $appsettingValue is the value
    $appsettingValue = $appSettings[$name]

    # update the web.config here!
}

$appSettings = hiera_hash('appSettings')    

# the keys() function returns the array of hash keys
$appSettingKeys = keys($appSettings)

# iterate through each appSetting key
updateAppSetting{$appSettingKeys:}

Problem

I'm dabbling with Puppet to update an arbitrary list of appsettings in an ASP.NET web.config (for deployment purpose) and I'm in a dilemma, mostly because I'm a real n00b in puppet. I have this yaml file (hiera) ``` --- appSettings: setting1: "hello" setting2: "world!" setting3: "lalala" ``` the number of `setting[x]` can span arbitrarily (one appSetting) and I would like to loop through the hash keys/value to update the corresponding `appSetting/add` in the web.config (using `exec` with powershell) the problem is i've searched high and low on how to iterate on keys and values. I came across `create_resources` and this of course iterates through a hash of hash with a pre-determined set of keys. again, the key names are not known within the manifest (hence iterating the key/value pairs). any guidance is appreciated. Edit: looks like there is a `keys()` function i can use over the hash and iterate over that then use hiera_hash('appSettings') to get the hash and iterate through the values.

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