Getting Temporal Cloud Metrics into SigNoz

We need to configure metrics endpoint using Temporal Cloud UI. The steps are available at https://docs.temporal.io/production-deployment/cloud/metrics/general-setup. After this you should have:

Temporal metrics endpoint
The certificate and key files

Step 1: Run `promql-to-scrape` to expose metrics to endpoint

https://github.com/SigNoz/samples-server/blob/main/cloud/observability/promql-to-scrape/

go mod tidy
go build -o promql-to-scrape cmd/promql-to-scrape/main.go
./promql-to-scrape --client-cert=/path/to/client.crt --client-
key=/path/to/tls.key --prom-endpoint=https://<account>.tmprl.cloud/prometheus --config-file examples/config.yaml --debug

You metrics would now be available at http://localhost:9001/metrics for getting scraped

Step 2: Run otel-collector to scrape the metrics

Install otel-collector:

Using Binary - https://signoz.io/docs/tutorial/opentelemetry-binary-usage-in-virtual-machine/
At Kubernetes - https://signoz.io/docs/tutorial/kubernetes-infra-metrics/

This guide can also be useful if you are new to scraping prometheus metrics using otel-collector

Add below scrape config to the otel-collector config

    receivers:
        ...
        prometheus:
            config:
                global:
                    scrape_interval: 30s
                scrape_configs:
                    - job_name: temporal-cloud
                        static_configs:
                            - targets:
                                - localhost:9001

Replace localhost:9001 with the endpoint where your metrics are available for scrape after Step 1.

Also, add prometheus to the list of receivers in the metrics pipeline of otel-collector. Keep the remaining part of your config intact.

    ...
    pipelines:
        ...
        metrics:
            receivers: [otlp, prometheus]
            processors: [batch]
            exporters: [otlp]
        ...