Ability to supply ModuleName

[wernerb]

Repost of ansible/ansible#24872 (comment)

I am seeing an error with a basic Dsc Resource "File":

- name: blabla
  win_dsc5:
    resource_name: File
    ensure: Present
    destinationpath: |-
      C:\example.txt
    Contents: |
      My content

Output:

Friday 02 June 2017  14:12:45 +0200 (0:00:03.155)       0:00:03.224 ***********
Using module file /Users/werner/projects/nn/aws-platform/ansible/main/playbooks/library/win_dsc5.ps1
<127.0.0.1> ESTABLISH WINRM CONNECTION FOR USER: Administrator on PORT 5986 TO 127.0.0.1
EXEC (via pipeline wrapper)
fatal: [default]: FAILED! => {
    "Attributes": [
        {
            "Key": "ensure",
            "Name": "ensure",
            "Value": "Present"
        },
        {
            "Key": "Contents",
            "Name": "Contents",
            "Value": "My content\n"
        },
        {
            "Key": "destinationpath",
            "Name": "destinationpath",
            "Value": "C:\\example.txt"
        }
    ],
    "Contents": "My content\n",
    "DSCAttributes": {
        "Contents": "My content\n",
        "destinationpath": "C:\\example.txt",
        "ensure": "Present"
    },
    "changed": false,
    "destinationpath": "C:\\example.txt",
    "ensure": "Present",
    "failed": true,
    "resource_name": "File"
}

MSG:

Cannot validate argument on parameter 'ModuleName'. The argument is null or empty. Provide an argument that is not null or empty, and then try the command again.

The problem seems to be that Get-Resource can return an empty module (for example for File resource).

Additionally if multiple modules are found there is no way to override or select the proper module to be used.

[Sholdaway]

Hi there. Regarding the module property for the file resource being empty, pretty sure #14 references what you're describing? Within that issue there is a link to a related thread on serverfault.com: https://serverfault.com/questions/778767/invoke-dscresource-against-a-resource-without-a-module

[Sholdaway]

Also thought I should mention that this is now in the devel branch of the main Ansible product so might be worth raising the issue there:

https://github.com/ansible/ansible/blob/devel/lib/ansible/modules/windows/win_dsc.ps1