Issue #7680 has been updated by Chris Boot.
Because this bug appears to be going nowhere, I thought I would add a few test
cases to very simply trigger this bug:
First, some setup:
`crb@chris ~ $ echo testing > testfile
crb@chris ~ $ ln -s testfile testlink`
First test, to create a file that doesn't exist:
`crb@chris ~ $ puppet resource file $(pwd)/newfile ensure=file links=follow
source=$(pwd)/testlink mode=0644
err: /File[/home/crb/newfile]/ensure: change from absent to present failed:
Could not rename temporary file /home/crb/newfile.puppettmp_6080 to
/home/crb/newfile: File written to disk did not match checksum; discarding
changes ( vs {md5}d41d8cd98f00b204e9800998ecf8427e)
file { '/home/crb/newfile':
ensure => 'absent',
}`
As you can see, the file is not created and Puppet produces an error.
Second test, to update the contents of the file if it exists with the
wrong content:
`crb@chris ~ $ echo foobar > newfile
crb@chris ~ $ puppet resource file $(pwd)/newfile ensure=file links=follow
source=$(pwd)/testlink mode=0644
file { '/home/crb/newfile':
ensure => 'file',
group => '1000',
mode => '644',
}
crb@chris ~ $ cat newfile
foobar`
This time, Puppet does not produce an error at all, but the contents of
the file remains unchanged and un-managed. In this case, this is silent
corruption as Puppet fails to enforce the content change on the file.
The patch in #6 fixes both of the test cases above.
Best regards,
Chris
----------------------------------------
Bug #7680: Checksum missmatch when copying followed symlinks
https://projects.puppetlabs.com/issues/7680#change-84677
Author: Mikael Svantesson
Status: Code Insufficient
Priority: Normal
Assignee:
Category: file
Target version:
Affected Puppet version: 2.6.8
Keywords: symlink file
Branch: https://github.com/puppetlabs/puppet/pull/1476
When trying to copy a file (using a symlink), Puppet does not calculate the
correct checksum for the temporary file.
This work in 2.6.7, I have not tried 2.7.x.
**Error:**
err: /Stage[pre]/Sudo/File[/etc/sudoers]/ensure: change from absent to
present failed: Could not rename temporary file /etc/sudoers.puppettmp_4293 to
/etc/sudoers:
File written to disk did not match checksum; discarding changes ( vs
{md5}d41d8cd98f00b204e9800998ecf8427e) at
/etc/puppet/modules/sudo/manifests/init.pp:12 at
/etc/puppet/modules/sudo/manifests/init.pp:12
**Manifest:**
class sudo {
package { 'sudo': ensure => installed }
file { '/etc/sudoers':
ensure => file,
source => ["puppet:///modules/sudo/sudoers-${hostname}",
'puppet:///modules/sudo/sudoers'],
links => follow,
replace => true,
owner => 'root',
group => 'root',
mode => '0440',
}
}
**File structure:**
modules/sudo/files
|-- sudoers
|-- sudoers-host1
`-- sudoers-host2 -> sudoers-host1
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