I have the following file resource in my puppet manifest:
file{
'example.dat'
path => "/path/to/example.dat",
owner => devops,
mode => "0644",
source => "/path/to/example.txt"
}
I want to run the above snippet only when the .txt file is present in a particular directory. Otherwise, I do not want the snippet to run.
How do I go about doing that in puppet?
In general, you would create a custom fact that returns true when the directory in question satisfies your condition. For example:
Facter.add('contains_txt') do
setcode do
! Dir.glob("/path/to/dir/*.txt").empty?
end
end
Then you would write:
if $facts['contains_txt'] {
file { 'example.dat':
path => "/path/to/example.dat",
owner => devops,
mode => "0644",
source => "/path/to/example.txt",
}
}
You can also use the built-in function find_file:
if find_file('path-to-your-file') {
# do something here if your file exists
}
