Dear all,
I'm working on a custom puppet (7.28) module to deploy python applciations
like django, streamlint, etc... A part from the python part, the module
also deploys an apache vhost (using puppet apache module from the forge).
I have some default options for apache vhost but I like to extend those
defaults with custom options based on some data that I get from hiera
(mainly, some excpetions to the proxy and adding some directories so apache
serves the static files).
As an example, one of my apps look like this in hiera:
python_apps:
biostars:
type: uwsgi
apache:
enable: true
servername: forum
app_protocol: https
extra_proxy_pass:
static: 'export/static'
images: 'export/images'
the relevant part here is the extra_proxy_pass. What I'd like to achieve is
create something like
proxy_pass => { 'path' => 'static', 'url' => '!' }
directories => [ 'path' => "${path}/${name}/static", 'Allow ' = > => 'from
all', 'Options' => 'Indexes'}]
proxy_pass => { 'path' => 'images', 'url' => '!' }
directories => [ 'path' => "${path}/${name}/images", 'Allow ' = > => 'from
all', 'Options' => 'Indexes'}]
To later on pass it to my vhost definition.
So, as for my understaning, I could use reduce
<https://www.puppet.com/docs/puppet/7/function.html#reduce>to achieve
that.But it's not clear to me how to use memo to append thos extar
proxy_pass or directories to it in a reusable format.
My code, so far, looks like this:
$base_proxy_pass =
{ 'path' => '/',
'url' => "${apache[app_protocol]}://127.0.0.1:${port}/"
}
if $apache.has_key(extra_proxy_pass) {
$options = $apache[extra_proxy_pass]
$extra_proxy_pass = $options.reduce([{proxy_pass => $base_proxy_pass}])|
$memo, $value| {
$memo << "proxy_pass => { 'path' => ${value[0]}, 'url' => '!' }"
# directories => {
# 'path' => "${path}/${name}/${value},
# 'Allow' => 'from all',
# 'Options' => 'Indexes',
# }
}
}
notify {"EXTRA_MEMORY_PATH: $extra_proxy_pass":;}
This produces proxy_pass as I need it:
Notice: EXTRA_MEMORY_PATH: [{proxy_pass => {path => /, url => https://
127.0.0.1:8000/}}, proxy_pass => { 'path' => static, 'url' => '!' },
proxy_pass => { 'path' => images, 'url' => '!' }]
But now I am not sure if I can use memo for building the directories array
of hashes in the same piece of code. Reading reduce docs seems like memo
can be used to store differnt values:
$data = {a => 1, b => 2, c => 3}
$combine = $data.reduce |$memo, $value| {
$string = "${memo[0]}${value[0]}"
$number = $memo[1] + $value[1]
[$string, $number]
}
# $combine contains [abc, 6]
but I've tried several options and none did work.
Also, is ther a way to reuse memo for the directories? or should I split my
code in two calls to reduce, one for building the extra_proxy array and
another call for the directories?
Maybe I using a wrong approach and there is a simplest way to achieve what
I'm trying to do. I'm open to suggestions.
Thanks in advance,
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