Knocking out values

[Helmut Schneider]

Hi,

using Puppet 5.5 and Hiera 3.4.6:

common.yaml:
profiles:
webserver:
apache:
server:
modules:
enable:
- mpm_event
- status

host.yaml:
profiles:
webserver:
apache:
server:
modules:
enable:
- headers
- include
- mpm_prefork
- ssl
- --mpm_event

config.pp
$profiles = lookup({
"name" => "profiles",
"merge" => {
"strategy" => "deep",
"knockout_prefix" => "--",
},
"default_value" => [],
})

Notice: {"enable"=>["mpm_event", "status", "headers", "include",
"mpm_prefork", "ssl"]}
Notice:
/Stage[main]/My_apache::Config/Notify[apacheCfg/modules]/message:
defined 'message' as {
'enable' => ['mpm_event', 'status', 'headers', 'include',
'mpm_prefork', 'ssl']
}

Why isn't mpm_event being removed?

Thank you!

[Becca Robinson]

It looks like it’s working as expected.

You did a deep merge, so it is finding all these:

common.yaml

• mpm_event
• status

host.yaml

• headers
• include
• mpm_prefork
• ssl
• —mpm_prefork (But this one is excluded to do "knockout_prefix" => "—“,)

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[Becca Robinson]

I just ran through some testing and try putting single quotes around your --mpm_event in Hiera.

host.yaml:
profiles:
 webserver:
   apache:
     server:
       modules:
         enable:
           - headers
           - include
           - mpm_prefork
           - ssl

           - ‘--mpm_event'

puppet lookup --node $(hostname -f) --merge deep --knock-out-prefix '--' profiles

---

webserver:

  apache:

    server:

      modules:

        enable:

        - status

        - headers

        - include

        - mpm_prefork

        - ssl

-- 
Becca Robinson
Senior Professional Services Engineer
be...@puppet.com | @_itgrl_
cell: (913) 752-7084
Puppet The shortest path to better software.

On Mar 7, 2020, at 10:53 AM, Helmut Schneider <jump...@gmx.de> wrote:

[Helmut Schneider]

Single quotes also do not work for me:

modules:
enable:
- headers
- include
- mpm_prefork
- ssl
- '--mpm_event'

helmut@puppet:~$ sudo puppet lookup --node h2786452.stratoserver.net
--merge deep --knock-out-prefix '--'
profiles.webserver.apache.server.modules
---
enable:
- mpm_event

- status
- headers
- include
- mpm_prefork
- ssl

helmut@puppet:~$

[Helmut Schneider]

Am 07.03.2020 um 19:00 schrieb Becca Robinson:

Not for me. But:

modules:
enable:
- headers
- include

- --blablabla
- mpm_prefork
- ssl

This knocks out the next item, here 'mpm_prefork':

helmut@puppet:~$ sudo puppet lookup --node h2786452 --merge deep
--knock-out-prefix '--' profiles.webserver.apache.server.modules
Warning: Undefined variable 'session'; \n (file & line not available)
---
enable:
- mpm_event

- status
- headers
- include

- ssl
helmut@puppet:~$

modules:
enable:
- headers
- '--funny'
- include
- --blablabla
- mpm_prefork
- ssl

helmut@puppet:~$ sudo puppet lookup --node h2786452 --merge deep
--knock-out-prefix '--' profiles.webserver.apache.server.modules
Warning: Undefined variable 'session'; \n (file & line not available)
---
enable:
- mpm_event
- status
- headers
- ssl
helmut@puppet:~$

modules:
enable:
- --'abc'
- headers
- '--def'
- include
- --geh
- mpm_prefork
- --ijk
- ssl

helmut@puppet:~$ sudo puppet lookup --node h2786452 --merge deep
--knock-out-prefix '--' profiles.webserver.apache.server.modules
Warning: Undefined variable 'session'; \n (file & line not available)
---

enable:
- mpm_event
- status

helmut@puppet:~$

[Becca Robinson]

What version of Puppet?

-- 
Becca 

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[Helmut Schneider]

Am 09.03.2020 um 16:48 schrieb Becca Robinson:
> What version of Puppet?

helmut@h2786452:~$ puppet -V
5.5.18
helmut@h2786452:~$ hiera -V
3.4.6
helmut@h2786452:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 18.04.4 LTS
Release: 18.04
Codename: bionic
helmut@h2786452:~$

[Henrik Lindberg]

You are running into this: https://tickets.puppetlabs.com/browse/PUP-7428

- henrik

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[Helmut Schneider]

What is the preferred way to handle this? Should one write his/her own code?