Thanks, that relabel config works perfectly!
On Wednesday, March 26, 2025 at 2:06:57 AM UTC-7 Brian Candler wrote:
> I don't think the exporter can do that, although it sounds like a good
> idea to me (i.e. to be able to set a label rather than mangle the metric
> name).
>
> Possibly you could use metric_relabel_configs to fix it up:
>
> - source_labels: [__name__]
> regex: '.*_CHANNEL_(.+)'
> target_label: channel
> - source_labels: [__name__]
> regex: '(.*)_CHANNEL_.+'
> target_label: __name__
>
> Otherwise, a simple HTTP proxy which sits between prometheus and
> snmp_exporter.
>
> On Wednesday, 26 March 2025 at 08:44:49 UTC Elliott Balsley wrote:
>
>> I have an SNMP device that returns a value like this:
>>
>> DOLBY-CP850-MIB::cp850MeterLevels.0 = STRING: "00 00 00 00 00 00 00 00 00
>> 00"
>>
>> This string represents the volume level of 10 separate audio channels, so
>> I would like to break it apart and record it as 10 metrics. I previously
>> had this working in Telegraf so the result looked like this:
>> snmp_dolby_cp_meter_level_dbfs{channel="L"} 0
>> snmp_dolby_cp_meter_level_dbfs{channel="R"} 0
>> snmp_dolby_cp_meter_level_dbfs{channel="C"} 0
>> snmp_dolby_cp_meter_level_dbfs{channel="LFE"} 0
>> snmp_dolby_cp_meter_level_dbfs{channel="Lss"} 0
>> snmp_dolby_cp_meter_level_dbfs{channel="Rss"} 0
>> snmp_dolby_cp_meter_level_dbfs{channel="Lrs"} 0
>> snmp_dolby_cp_meter_level_dbfs{channel="Rrs"} 0
>> snmp_dolby_cp_meter_level_dbfs{channel="Lts"} 0
>> snmp_dolby_cp_meter_level_dbfs{channel="Rts"} 0
>>
>> Is this possible to do with snmp-exporter? I couldn't find any way to
>> add the channel label. The best I could think of is this regex_extract in
>> the exporter, but this isn't really what I want because it adds the channel
>> identifier to the metric name.
>>
>> cp850MeterLevels:
>> type: DisplayString
>> regex_extracts:
>> '_L':
>> - regex: '(..) .. .. .. .. .. .. .. .. ..'
>> value: $1
>> '_R':
>> - regex: '.. (..) .. .. .. .. .. .. .. ..'
>> value: $1
>> '_C':
>> - regex: '.. .. (..) .. .. .. .. .. .. ..'
>> value: $1
>> '_LFE':
>> - regex: '.. .. .. (..) .. .. .. .. .. ..'
>> value: $1
>> '_Lss':
>> - regex: '.. .. .. .. (..) .. .. .. .. ..'
>> value: $1
>> '_Rss':
>> - regex: '.. .. .. .. .. (..) .. .. .. ..'
>> value: $1
>> '_Lrs':
>> - regex: '.. .. .. .. .. .. (..) .. .. ..'
>> value: $1
>> '_Rrs':
>> - regex: '.. .. .. .. .. .. .. (..) .. ..'
>> value: $1
>> '_Lts':
>> - regex: '.. .. .. .. .. .. .. .. (..) ..'
>> value: $1
>> '_Rts':
>> - regex: '.. .. .. .. .. .. .. .. .. (..)'
>> value: $1
>>
>>
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