The other way you can do this is with the "__tmp_keep" pattern. This is
where you positively tag the metrics you want to keep, and then use a drop
that matches that temporary label doesn't exist.
metric_relabel_configs:
- source_labels: [__name__, name]
regex: 'node_systemd_.*;(ssh|apache).*'
target_label: __tmp_keep
replacement: yes
- source_labels: [__tmp_keep,__name__]
regex: ';node_systemd_.*'
action: drop
- regex: __tmp_keep
action: labeldrop
On Monday, March 11, 2024 at 9:43:27 PM UTC+1 mel wrote:
> You are absolutely correct but I don't have access to a lot of the servers
> so I am trying to drop them on the prometheus side
>
> On Monday, March 11, 2024 at 1:39:18 PM UTC-7 Ben Kochie wrote:
>
>> relabel actions are exclusive. Drop means keep everything but X. Keep
>> means drop everything but X.
>>
>> For your exact problem, there is already a node_exporter flag to handle
>> this.
>>
>> ./node_exporter --collector.systemd.unit-include="(ssh|apache)"
>>
>> This will also be more efficient because it it will only gather data
>> about those two units.
>>
>> On Monday, March 11, 2024 at 9:27:30 PM UTC+1 mel wrote:
>>
>>> Hello I am using node_exporter and I am trying to drop all
>>> node_systemd_unit_state metrics except for a handful of services like
>>> (e.g.,) ssh and apache. How would I do this? I came up with the following,
>>> but I don't think this is correct because it will drop other metrics as
>>> well (metrics that are not related to systemd service)
>>>
>>> metric_relabel_configs:
>>> - source_labels: [__name__, name]
>>> regex: 'node_systemd_unit_state;(ssh|apache).*'
>>> action: keep
>>>
>>> How do I drop all service metrics except for ssh and apache service?
>>>
>>
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