Understanding of relabel config and metric_label_config

[akshay sharma]

Hi,

I'm trying to drop metrics with specific label values for ex:

node_network_up{device="d0",instance="xxx",job="Node-1"}	0
node_network_up{device="x160",instance="xxx",job="Node-1"}	1
node_network_up{device="x192",instance="xxx",job="Node-1"}	0
node_network_up{device="d1",instance="xxx",job="Node-1"}	0
node_network_up{device="l0",instance="xxx",job="Node-1"} node_network_up{device="k0",instance="xxx",job="Node-1"} node_network_up{device="a0",instance="xxx",job="Node-1"} I want to drop metrics which has a device name apart from x160,x192,d1,d0. Note: I've tried added relabel_config as below, but it is not working(when giving regex or any generic command). metric_relabel_configs:   - source_labels: [__name__,device]     regex: node_network_up; (x|d).+     action: drop - source_labels: [__name__,device]     regex: node_network_up; d*     action: drop This is working - source_labels: [__name__,device]     regex: node_network_up; d1     action: drop When I tried below configuration, all metrics are coming as empty, no data can be shown in prometheus.  metric_relabel_configs:   - source_labels: [__name__, device]     regex: "node_network_up;(x|d).+"     action: keep When i tried below configuration, even the target is not showing in prometheus target option. relabel_config:  - source_labels: [__name__, device]     regex: "node_network_up;(x|d).+"     action: keep Can you please put some light on relabel config and metric relabel config. And why am I facing the issues mentioned above? thanks, Akshay