host-pattern and wild cards

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Kenny Serrine

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May 17, 2016, 4:24:25 PM5/17/16

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I'm using wildcards to match my hosts, and it works in one case but not in another. I've figured out that if I use a regex pattern, I can get consistency. But, for just simple wildcard, I'm wondering if this is a bug or if I'm just doing something that the command line parser wasn't designed to handle. Maybe the documentation just needs to be clear about the limits of wildcards?

I have version 2.0.2.0 of ansible.

Here is the example hosts file I'm using:

[root@ap01 Scripts]# cat /tmp/killthis.txt

[group1]

[group2]

And, here are the commands I'm using. As you can see, *proxy* seems to work, but *sync* fails, and *ync* really fails.

[root@p01 Scripts]# ansible *proxy* -i /tmp/killthis.txt --list-hosts

hosts (2):

myproxy1.example.net

myproxy2.example.net

[root@01 Scripts]# ansible *sync* -i /tmp/killthis.txt --list-hosts

[WARNING]: provided hosts list is empty, only localhost is available

hosts (0):

[root@p01 Scripts]# ansible *ync* -i /tmp/killthis.txt --list-hosts

Usage: ansible <host-pattern> [options]

Options:

-a MODULE_ARGS, --args=MODULE_ARGS

[snip]

--version show program's version number and exit

ERROR! Missing target hosts

Matt Martz

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May 17, 2016, 4:33:32 PM5/17/16

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The problem is most likely shell expansion of `*`. You probably have some files in your directory that have `sync` in the name.

echo *proxy*

echo *sync*

When using chars in a command that could be interpreted by the shell, you should ensure you use quoting such as:

ansible '*sync*' -i /tmp/killthis.txt --list-hosts

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