devops-infra-helm-charts-gcp/helm-templates/pyroscope/templates/configmap-alloy.yaml

{{- if and (.Values.alloy.enabled) (not .Values.alloy.alloy.configMap.create)  }}
apiVersion: v1
kind: ConfigMap
metadata:
  name: {{ .Values.alloy.alloy.configMap.name }}
  namespace: {{ .Release.Namespace }}
  labels:
    {{- include "pyroscope.labels" . | nindent 4 }}
data:
  config.alloy: |
    logging {
    	level  = "info"
    	format = "logfmt"
    }

    discovery.kubernetes "pyroscope_kubernetes" {
    	role = "pod"
    }

    // The default scrape config allows to define annotations based scraping.
    //
    // For example the following annotations:
    //
    // ```
    // profiles.grafana.com/memory.scrape: "true"
    // profiles.grafana.com/memory.port: "8080"
    // profiles.grafana.com/cpu.scrape: "true"
    // profiles.grafana.com/cpu.port: "8080"
    // profiles.grafana.com/goroutine.scrape: "true"
    // profiles.grafana.com/goroutine.port: "8080"
    // ```
    //
    // will scrape the `memory`, `cpu` and `goroutine` profiles from the `8080` port of the pod.
    //
    // For more information see https://grafana.com/docs/pyroscope/latest/deploy-kubernetes/helm/#optional-scrape-your-own-workloads-profiles
    discovery.relabel "kubernetes_pods" {
    	targets = concat(discovery.kubernetes.pyroscope_kubernetes.targets)

    	rule {
    		action        = "drop"
    		source_labels = ["__meta_kubernetes_pod_phase"]
    		regex         = "Pending|Succeeded|Failed|Completed"
    	}

    	rule {
    		action = "labelmap"
    		regex  = "__meta_kubernetes_pod_label_(.+)"
    	}

    	rule {
    		action        = "replace"
    		source_labels = ["__meta_kubernetes_namespace"]
    		target_label  = "namespace"
    	}

    	rule {
    		action        = "replace"
    		source_labels = ["__meta_kubernetes_pod_name"]
    		target_label  = "pod"
    	}

    	rule {
    		action        = "replace"
    		source_labels = ["__meta_kubernetes_pod_container_name"]
    		target_label  = "container"
    	}

    	rule {
    		action        = "replace"
    		source_labels = ["__meta_kubernetes_pod_annotation_profiles_grafana_com_service_repository"]
    		target_label  = "service_repository"
    	}

    	rule {
    		action        = "replace"
    		source_labels = ["__meta_kubernetes_pod_annotation_profiles_grafana_com_service_git_ref"]
    		target_label  = "service_git_ref"
    	}

    	rule {
    		action        = "replace"
    		source_labels = ["__meta_kubernetes_pod_annotation_profiles_grafana_com_service_root_path"]
    		target_label  = "service_root_path"
    	}
    }
  {{- $profileTypes := list "memory" "cpu" "goroutine" "block" "mutex" "fgprof" }}
  {{- range $profileTypes }}

    discovery.relabel "kubernetes_pods_{{.}}_default_name" {
    	targets = concat(discovery.relabel.kubernetes_pods.output)

    	rule {
    		source_labels = ["__meta_kubernetes_pod_annotation_profiles_grafana_com_{{.}}_scrape"]
    		action        = "keep"
    		regex         = "true"
    	}

    	rule {
    		source_labels = ["__meta_kubernetes_pod_annotation_profiles_grafana_com_{{.}}_port_name"]
    		action        = "keep"
    		regex         = ""
    	}

    	rule {
    		source_labels = ["__meta_kubernetes_pod_container_port_number"]
    		target_label  = "__meta_kubernetes_pod_annotation_profiles_grafana_com_{{.}}_port"
    		action        = "keepequal"
    	}

    	rule {
    		source_labels = ["__meta_kubernetes_pod_annotation_profiles_grafana_com_{{.}}_scheme"]
    		action        = "replace"
    		regex         = "(https?)"
    		target_label  = "__scheme__"
    		replacement   = "$1"
    	}

    	rule {
    		source_labels = ["__meta_kubernetes_pod_annotation_profiles_grafana_com_{{.}}_path"]
    		action        = "replace"
    		regex         = "(.+)"
    		target_label  = "__profile_path__"
    		replacement   = "$1"
    	}

    	rule {
    		source_labels = ["__address__", "__meta_kubernetes_pod_annotation_profiles_grafana_com_{{.}}_port"]
    		action        = "replace"
    		regex         = "(.+?)(?::\\d+)?;(\\d+)"
    		target_label  = "__address__"
    		replacement   = "$1:$2"
    	}
    }

    discovery.relabel "kubernetes_pods_{{.}}_custom_name" {
    	targets = concat(discovery.relabel.kubernetes_pods.output)

    	rule {
    		source_labels = ["__meta_kubernetes_pod_annotation_profiles_grafana_com_{{.}}_scrape"]
    		action        = "keep"
    		regex         = "true"
    	}

    	rule {
    		source_labels = ["__meta_kubernetes_pod_annotation_profiles_grafana_com_{{.}}_port_name"]
    		action        = "drop"
    		regex         = ""
    	}

    	rule {
    		source_labels = ["__meta_kubernetes_pod_container_port_name"]
    		target_label  = "__meta_kubernetes_pod_annotation_profiles_grafana_com_{{.}}_port_name"
    		action        = "keepequal"
    	}

    	rule {
    		source_labels = ["__meta_kubernetes_pod_annotation_profiles_grafana_com_{{.}}_scheme"]
    		action        = "replace"
    		regex         = "(https?)"
    		target_label  = "__scheme__"
    		replacement   = "$1"
    	}

    	rule {
    		source_labels = ["__meta_kubernetes_pod_annotation_profiles_grafana_com_{{.}}_path"]
    		action        = "replace"
    		regex         = "(.+)"
    		target_label  = "__profile_path__"
    		replacement   = "$1"
    	}

    	rule {
    		source_labels = ["__address__", "__meta_kubernetes_pod_annotation_profiles_grafana_com_{{.}}_port"]
    		action        = "replace"
    		regex         = "(.+?)(?::\\d+)?;(\\d+)"
    		target_label  = "__address__"
    		replacement   = "$1:$2"
    	}
    }

    pyroscope.scrape "pyroscope_scrape_{{.}}" {
    	clustering {
    		enabled = true
    	}

    	targets    = concat(discovery.relabel.kubernetes_pods_{{.}}_default_name.output, discovery.relabel.kubernetes_pods_{{.}}_custom_name.output)
    	forward_to = [pyroscope.write.pyroscope_write.receiver]

    	profiling_config {
        {{- $currentType := . -}}
        {{- range $profileTypes }}
    		profile.{{if eq . "cpu"}}process_cpu{{else}}{{.}}{{end}} {
    			enabled = {{if eq . $currentType}}true{{else}}false{{end}}
    		}
        {{- if ne . (last $profileTypes) }}{{ printf "\n" }}{{ end }}
        {{- end }}
    	}
    }
  {{- end }}

    pyroscope.write "pyroscope_write" {
    	endpoint {
    		url = "{{ include "pyroscope.write_url" . }}"
    	}
    }

{{- end }}