[syslog-ng] is it possible to use if() ... else statements on syslog-ng 3.7?

Jorge Pereira jpereiran at gmail.com
Wed May 10 22:50:50 UTC 2017


Hi Balazs,

Sorry, But I didn't get your suggestion as well. do you mind to be more
clearly?

--
Jorge Pereira

On Wed, May 10, 2017 at 3:42 AM, Balazs Scheidler <bazsi77 at gmail.com> wrote:

> I think we have a $(/ $R_MIN 5) template function for integer division,
> likewise we have multiplication as well, which you can use to achieve the
> same a lot easier.
>
> On May 9, 2017 19:41, "Jorge Pereira" <jpereiran at gmail.com> wrote:
>
>> My approach is:
>>
>>     rewrite {
>>         # e.g: 20170417/1000PM
>>         set("00", value("min_slice"), condition("$R_MIN" >= "0"));
>>         set("05", value("min_slice"), condition("$R_MIN" >= "5"));
>>         set("10", value("min_slice"), condition("$R_MIN" >= "10"));
>>         set("15", value("min_slice"), condition("$R_MIN" >= "15"));
>>         set("20", value("min_slice"), condition("$R_MIN" >= "20"));
>>         set("25", value("min_slice"), condition("$R_MIN" >= "25"));
>>         set("30", value("min_slice"), condition("$R_MIN" >= "30"));
>>         set("35", value("min_slice"), condition("$R_MIN" >= "35"));
>>         set("40", value("min_slice"), condition("$R_MIN" >= "40"));
>>         set("45", value("min_slice"), condition("$R_MIN" >= "45"));
>>         set("50", value("min_slice"), condition("$R_MIN" >= "50"));
>>         set("55", value("min_slice"), condition("$R_MIN" >= "55"));
>>
>>         # final macro
>>         set("${YEAR}${MONTH}${DAY}-${HOUR12}${min_slice}${AMPM}",
>> value("logfmt_file"));
>>         set("${YEAR}${MONTH}${DAY}/${HOUR12}${min_slice}${AMPM}",
>> value("logfmt_dir"));
>>     };
>>
>> --
>> Jorge Pereira
>>
>> On Tue, May 9, 2017 at 4:00 AM, James Elstone <james at elstone.net> wrote:
>>
>>> Hi,
>>>
>>> Are multiple channel{} commands processed in parallel or sequentially?
>>>
>>> Kr,
>>>
>>> James
>>>
>>>
>>> On 9 May 2017 07:20:05 BST, "Scheidler, Bal√°zs" <
>>> balazs.scheidler at balabit.com> wrote:
>>>>
>>>> This is possible, but with quite ugly syntax. I always wanted to add
>>>> some syntactic sugar, but never got around to do it.
>>>>
>>>> It looks like this:
>>>>
>>>> junction {
>>>>    channel {
>>>>        # if, with conditions specified as filters
>>>>        filter { whatever... };
>>>>        destination { whatever };
>>>>        flags(final);
>>>>     };
>>>>     channel {
>>>>        # else, you can add filters as well
>>>>        destination { something else };
>>>>        flags(final);
>>>>     };
>>>> };
>>>>
>>>> The key parts:
>>>> * This can be embedded to any log statement as it is
>>>> * It uses inline filters and destinations, but you can use other
>>>> definitions by using simple parens instead of braces.
>>>> * flags final which causes processing to be stopped at the first match.
>>>> Without that, you'd be duplicating messages, if the conditions overlap.
>>>> * You can add any number of channels, you are not limited to one
>>>> if/else construct. It is more like a filter based switch with multple
>>>> potential branches.
>>>>
>>>> Hope this helps,
>>>>
>>>>
>>>> On May 9, 2017 01:03, "Jorge Pereira" <jpereiran at gmail.com> wrote:
>>>>
>>>>> Ops! The documentation explaining only to use with templates.
>>>>>
>>>>> Basically, I am looking for how to do the below pseudo-code.
>>>>>
>>>>>     destination {
>>>>>         if ($R_MIN >= 0 && $R_MIN < 30)
>>>>>             file("/path/file_00m-15m.log");
>>>>>         else
>>>>>             file("/path/file_30m-60m.log");
>>>>>         endif()
>>>>>     };
>>>>>
>>>>> p.s: I need to save the logs in chunks of 30 minutes being 00m-30m &
>>>>> 31m-60m
>>>>>
>>>>> --
>>>>> Jorge Pereira
>>>>>
>>>>> On Mon, May 8, 2017 at 7:52 PM, Jorge Pereira <jpereiran at gmail.com>
>>>>> wrote:
>>>>>
>>>>>> never mind, I found it.
>>>>>>
>>>>>> https://www.balabit.com/documents/syslog-ng-ose-latest-guide
>>>>>> s/en/syslog-ng-ose-guide-admin/html/reference-template-functions.html
>>>>>>
>>>>>> --
>>>>>> Jorge Pereira
>>>>>>
>>>>>> On Mon, May 8, 2017 at 7:46 PM, Jorge Pereira <jpereiran at gmail.com>
>>>>>> wrote:
>>>>>>
>>>>>>> hi team,
>>>>>>> is it possible to use if() ... else statements on syslog-ng 3.7? I
>>>>>>> am trying to do something like.
>>>>>>>
>>>>>>> if ($value >= X)
>>>>>>>   ......
>>>>>>> else
>>>>>>>   ......
>>>>>>> --
>>>>>>> Jorge Pereira
>>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>> ____________________________________________________________
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>>>>>
>>>>>
>>>>>
>>> --
>>> Sent from my Android device with K-9 Mail. Please excuse my brevity.
>>>
>>> ____________________________________________________________
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>>>
>>>
>>
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>>
>>
> ____________________________________________________________
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