packer is called packer-io on certain platforms

[obilodeau]

@@ -192,7 +192,7 @@ def run_packer(packer_config):
     print("Starting packer to generate the VM")
     print("----------------------------------")

-    cmd = ['packer-io', 'build', '-var-file=config.json', packer_config]
+    cmd = ['packer', 'build', '-var-file=config.json', packer_config]
     ret = run_foreground(cmd)

     print("----------------------------------")

Breaks arch linux support.

Regression introduced in 13b2e4f

[malwarenights]

Hello,
the patch will not work on Fedora/RedHat/Centos and possibly others, because it will by default find always the wrong binary from the colliding cracklib package.

I would recommend to search first for the more specific packer-io and then fallback to packer - this way it would be easy to install the packer.io as packer-io on RedHat platforms for example by:

# installing pre-compiled packer.io
 wget https://releases.hashicorp.com/packer/1.0.0/packer_1.0.0_linux_amd64.zip
 unzip packer_1.0.0_linux_amd64.zip
 mkdir ~/bin
 # name "packer" collides with tool from cracklib
 mv packer ~/bin/packer-io
 chmod +x ~/bin/packer-io
 export PATH=~/bin:$PATH

Please could you consider accepting the related pull request - #53

Thank you
Michal Ambroz