Thanks Josh for explanation!

M

On Tuesday, June 25, 2019 at 11:46:11 AM UTC-4, Josh Cooper wrote:
>
>
>
> On Mon, Jun 24, 2019 at 10:04 AM '[email protected] <javascript:>' via 
> Puppet Users <[email protected] <javascript:>> wrote:
>
>> Thanks Josh,
>>
>> I am not switching out package. I am making a fips enabled server (with 
>> fips agent installed) into a fips disabled one. Basically updating the grub 
>> and rebooting. Thus now I have a non fips enabled machine with puppet fips 
>> agent installed. So the question is will it work properly or do I have to 
>> install nonfips agent?
>>
>> Basically I am using an image with fips agent installed. However, when we 
>> install software, it may not work with fips, so we disable fips but leaving 
>> the agent alone.
>>
>> My initial testing with bare bone master and puppet agent -t, showed that 
>> non fips agent will work with fips enabled machine and vice-a -verse But 
>> wanted to figure out what issues I may encounter, if any?
>>
>
> Ah, makes sense. The fips agent should work when fips is disabled. The 
> agent will fallback to allowing md5 for filebucketing and when retrieving 
> file resource metadata, e.g. `source => "puppet:///modules/foo/bar.txt"`. 
> However, if you run into issues you can always specify which digest to use 
> explicitly. See the `digest_algorithm` puppet setting and the `checksum` 
> file parameter.
>
> https://puppet.com/docs/puppet/latest/configuration.html#digestalgorithm
> https://puppet.com/docs/puppet/latest/type.html#file-attribute-checksum
>
> Thanks
>>
>> M
>>
>> On Friday, June 21, 2019 at 1:29:38 PM UTC-4, Josh Cooper wrote:
>>>
>>> On Thu, Jun 20, 2019 at 9:05 AM '[email protected]' via Puppet Users 
>>> <[email protected]> wrote: 
>>> > 
>>> > Hello, 
>>> > 
>>> > We are using some fips and some non-fips agent. Proper agent rpm (fips 
>>> or non fips based on current configuration) has been installed, however, 
>>> after agent installation, if we were to update a agent from fips to 
>>> non-fips or vice-a-verse, will the old agent rpm still function? 
>>>
>>> The fips and non-fips packages have the same name, but different 
>>> releases. So if you switch from one to the other, the old one will be 
>>> removed. That said, we don't test switching, as we assume the matching 
>>> package is installed from the start. 
>>>
>>> $ rpm -qi puppet-agent 
>>> Name        : puppet-agent 
>>> Version     : 6.5.0 
>>> Release     : 1.redhatfips7 
>>> ... 
>>>
>>> $ rpm -qi puppet-agent 
>>> Name        : puppet-agent 
>>> Version     : 6.5.0 
>>> Release     : 1.el7 
>>>
>>> > Just running puppet agent -t seems to be working , but in that case 
>>> not sure what is different between fips and non-fips agent? 
>>>
>>> The fips agent is compiled against system openssl and does not contain 
>>> a vendored openssl: 
>>>
>>> $ ldd /opt/puppetlabs/puppet/lib/libfacter.so | grep libssl 
>>>     libssl.so.10 => /lib64/libssl.so.10 (0x00007fefbab83000) 
>>>
>>> Whereas the non-fips agent is compiled against puppet's vendored 
>>> openssl: 
>>>
>>> $  ldd /opt/puppetlabs/puppet/lib/libfacter.so | grep libssl 
>>>     libssl.so.1.1 => /opt/puppetlabs/puppet/lib/libssl.so.1.1 
>>> (0x00007f705127f000) 
>>>
>>> If you install a non-fips puppet-agent on a fips-enabled host, it will 
>>> use the vendored openssl. While it will "work", I wouldn't recommend 
>>> it, because it will subvert the system's openssl. 
>>>
>>> If you install a fips puppet-agent on a non-fips-enabled host, then it 
>>> should work provided the system openssl is compatible with our ruby. 
>>>
>>> The puppet ruby code is the same for both fips and non-fips. At 
>>> runtime, puppet detects if fips is enabled, and if so, removes md5 
>>> from its list of supported checksums. This affects filebucketing and 
>>> retrieving file contents from "puppet:///" sources. Also some 
>>> operations like `puppet module install` cannot be performed due to its 
>>> reliance on md5. That will be changing in the near future though. 
>>>
>>> Josh 
>>>
>>> > 
>>> > Thanks 
>>> > 
>>> > M 
>>> > 
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>>>  
>>>
>>> > For more options, visit https://groups.google.com/d/optout. 
>>>
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>
>
> -- 
> Josh Cooper | Software Engineer
> [email protected] <javascript:> | @coopjn
>

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