On Wed, Oct 2, 2013 at 4:15 AM, Björn <bbecker.g...@googlemail.com> wrote:
> exec{'ensure password policy for pci':
> cwd => '/bin/',
> command => "/bin/sed -i 's/^password.*cracklib.so.*/password
> requisite pam_cracklib.so retry=3 minlen=8 difok=5
> dcredit=-1 lcredit=-1 ucredit=-1 ocredit=-1/g' $pam_password",
> path => "/usr/bin:/usr/sbin:/bin",
> onlyif => "grep '^password.*cracklib.so.*' $pam_password",
> require => Package[$cracklib],
> }
>
> exec{'ensure password policy for pci when nothing is present':
> cwd => '/bin/',
> command => "echo 'password requisite
> pam_cracklib.so retry=3 minlen=8 difok=5 dcredit=-1 lcredit=-1 ucredit=-1
> ocredit=-1' >> $pam_password",
> path => "/usr/bin:/usr/sbin:/bin",
> onlyif => "grep -vq '^password.*cracklib.so.*' $pam_password",
> require => Package[$cracklib],
> }
> }
>
> My problem are the exec commands.
>
> With the first exec I try to change an existing line with sed.
>
> With the second exec I try to add the rule if no line with
> "password.*cracklib" is existing.
> Unfortunately, this exec run when the return code of onlyif is 0. I don't
> know a command which return 0 when the line isn't available and return 1
> when the line is available.
>
> May be I'm thinking to complicated? Do you have another solution?
>
Off the top of my head, I can't think of a way to invert grep's exit status
like you want (at least not a way
that will work in an onlyif), however the use of two execs to modify a file
is probably not the ideal solution.
Indeed, once the cracklib entry is present in the file, that first exec
will fire every time puppet runs, which
is probably not what you want either.
If you don't want to manage the entire file, you could use either the
native augeas type or the file_line
type from the stdlib module to accomplish what you want (file_line is
probably easier):
file_line { 'ensure password policy for pci':
path => $pam_password,
match => '^password.*cracklib\.so',
line => 'password requisite
pam_cracklib.so retry=3 minlen=8 difok=5 dcredit=-1 lcredit=-1 ucredit=-1
ocredit=-1'
}
-Mike
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