Setting up scraping with victoria metrics cluster about helm-charts

[tenmozes]

tldr; setup vmagent and write the result to cluster https://github.com/VictoriaMetrics/VictoriaMetrics/tree/master/app/vmagent and https://github.com/VictoriaMetrics/helm-charts/tree/master/charts/victoria-metrics-agent

Hello, you can do it with cluster, let me a bit describe the ecosystem
Single version is like a swiss knife, can scrape and store inside itself. But when you have a load or need some distribution you want to split the components. For that we have:

• vm-cluster - distributed metric storage
• vmagent - scraper
• vmalert - which evaluates the rules (alerting and recording)

so the full setup of the solution is
Vmagent scrape the tagres in prometheus format and write the metrics into the cluster, vmalert evaluates the rules by reading them from cluster and sends the alerts to alertmanager (or evalutes the recording rules and stores back to the cluster).

Helm charts give you an option to setup each component

[Alon-Katz]

Thanks for such a quick response!

If I understood it correctly, to be able to scrape targets (another vm instance for example) with VM-Cluster I would need to deploy vmagent and do remote write to VM-cluster?

If thats true and I wanted to do it with minimal dependencies, then I should use the single version VM which can scrape other targets without vmagent? if thats also true then deploying single vm with helm charts I can specify the -promscrape.config with the extraArgs in the values.yaml?

Thanks!

[f41gh7]

If thats true and I wanted to do it with minimal dependencies, then I should use the single version VM which can scrape other targets without vmagent? if thats also true then deploying single vm with helm charts I can specify the -promscrape.config with the extraArgs in the values.yaml?

Yep, single version of vm can scrape targets with promscrape.config arg. You have to mount config somehow, unfortunately chart doesnt support it. Probably operator version is more flexible in this case https://github.com/VictoriaMetrics/operator/blob/master/docs/api.MD#vmsinglespec

[f41gh7]

At master branch you can specify additional mounts with extraVolumes and extraVolumeMounts. It should be enough to add scrape config into victoria-metrics-single chart.