Re: Data

 What I usually do is guarding the execresult with a class defined at runtime. It prevents cf-promises from evaluating it and allows unitary execution

Le 28 décembre 2023 01:05:32 GMT+01:00, 'Nick Anderson' via help-cfengine <[email protected]> a écrit :
>During update policy use a commands promise that populates the json. Then
>you can use the read json function or similar during the regular policy
>run.
>
>On Wed, Dec 27, 2023, 3:56 PM Martin Simons <[email protected]> wrote:
>
>> Dear CFEngineer,
>>
>> Fosdem and Configmanagement Camp are due in about one month.
>> I will do a talk on external data for nodes, CFEngine nodes too, in a
>> landscape.
>> https://github.com/Webhuis/Data
>>
>> The idea is that a node sends a message to Data and then receives a tailor
>> made set of data it can use for its operation. In principple Data serves
>> any node that is able to send, receive and process a message.
>>
>> CFEngine nodes invoke a Python script in the bginning of the process.
>> The nodes bother Data a bit too much, because they send the message nine
>> times!
>>
>> Up to now I use the following line to obtain the data:
>> "response"                           string =>
>> execresult("/var/cfengine/bin/cf-message.py
>> '$(node_hard_classes_feed)'","noshell");
>>
>> The requirements are:
>> 1. The data should become available at the beginning of the run
>> 2. The data has to be stored in the json format
>> 3. The data has to become available in a variable, not on disk
>>
>> Is there a way to avoid the agent to send the message nine times?
>>
>> Regards,
>> Martin.
>>
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>>
>
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