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[grafana-sampling] add sampling helm chart (#2918)
* add sampling helm chart Signed-off-by: Robbie Lankford <[email protected]> * wire metrics generation toggle Signed-off-by: Robbie Lankford <[email protected]> * add simpified sampling policies Signed-off-by: Robbie Lankford <[email protected]> * set 2 replicas and disable autoscaling by default Signed-off-by: Robbie Lankford <[email protected]> * set back to 1 replicas by default to pass ci tests Signed-off-by: Robbie Lankford <[email protected]> * use kubernetes resolver for loadbalancing exporter Signed-off-by: Robbie Lankford <[email protected]> * add README.md Signed-off-by: Robbie Lankford <[email protected]> * helm-docs Signed-off-by: Robbie Lankford <[email protected]> * helm-docs Signed-off-by: Robbie Lankford <[email protected]> * update helm-docs; add decision wait Signed-off-by: Robbie Lankford <[email protected]> * helm-docs and fix typo Signed-off-by: Robbie Lankford <[email protected]> * quote decision_wait Signed-off-by: Robbie Lankford <[email protected]> * add transform to drop unneeded resource attributes for spanmetrics Signed-off-by: Robbie Lankford <[email protected]> * more doc updates Signed-off-by: Robbie Lankford <[email protected]> * more doc updates Signed-off-by: Robbie Lankford <[email protected]> * move sampling to grafana-sampling Signed-off-by: Robbie Lankford <[email protected]> * additional docs updates Signed-off-by: Robbie Lankford <[email protected]> * remove sample file Signed-off-by: Robbie Lankford <[email protected]> * shorten names to pass tests Signed-off-by: Robbie Lankford <[email protected]> * update png and metrics pipeline order based on PR review Signed-off-by: Robbie Lankford <[email protected]> * remove k8s.pod.name from default dimensions Signed-off-by: Robbie Lankford <[email protected]> --------- Signed-off-by: Robbie Lankford <[email protected]>
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| # Patterns to ignore when building packages. | ||
| # This supports shell glob matching, relative path matching, and | ||
| # negation (prefixed with !). Only one pattern per line. | ||
| .DS_Store | ||
| # Common VCS dirs | ||
| .git/ | ||
| .gitignore | ||
| .bzr/ | ||
| .bzrignore | ||
| .hg/ | ||
| .hgignore | ||
| .svn/ | ||
| # Common backup files | ||
| *.swp | ||
| *.bak | ||
| *.tmp | ||
| *.orig | ||
| *~ | ||
| # Various IDEs | ||
| .project | ||
| .idea/ | ||
| *.tmproj | ||
| .vscode/ |
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| dependencies: | ||
| - name: grafana-agent | ||
| repository: https://grafana.github.io/helm-charts | ||
| version: 0.36.0 | ||
| - name: grafana-agent | ||
| repository: https://grafana.github.io/helm-charts | ||
| version: 0.36.0 | ||
| digest: sha256:6d04a55dce2c09c4c250c6453e0d58f7280750bf04fce51027b4e235062413e5 | ||
| generated: "2024-03-11T15:41:30.921516-07:00" |
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| apiVersion: v2 | ||
| name: grafana-sampling | ||
| description: A Helm chart for a layered OTLP tail sampling and metrics generation pipeline. | ||
| type: application | ||
| version: 0.1.0 | ||
| appVersion: "v0.40.2" | ||
| sources: | ||
| - https://github.com/grafana/agent | ||
| - https://grafana.com/docs/grafana-cloud/monitor-applications/application-observability/setup/sampling/tail/ | ||
| dependencies: | ||
| - name: grafana-agent | ||
| version: 0.36.0 | ||
| repository: https://grafana.github.io/helm-charts | ||
| alias: grafana-agent-deployment | ||
| - name: grafana-agent | ||
| version: 0.36.0 | ||
| repository: https://grafana.github.io/helm-charts | ||
| alias: grafana-agent-statefulset |
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| # grafana-sampling | ||
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|    | ||
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| A Helm chart for a layered OTLP tail sampling and metrics generation pipeline. | ||
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| This chart deploys the following architecture to your environment: | ||
|  | ||
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| Note: by default, only OTLP traces are accepted at the load balancing layer. | ||
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| ## Chart Repo | ||
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| Add the following repo to use the chart: | ||
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| ```console | ||
| helm repo add grafana https://grafana.github.io/helm-charts | ||
| ``` | ||
| ## Installing the Chart | ||
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| Use the following command to install the chart with the release name `my-release`. Make sure to populate the required values. | ||
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| ```console | ||
| helm install my-release grafana/grafana-sampling --values - <<EOF | less | ||
| grafana-agent-statefulset: | ||
| agent: | ||
| extraEnv: | ||
| - name: GRAFANA_CLOUD_API_KEY | ||
| value: <REQUIRED> | ||
| - name: GRAFANA_CLOUD_PROMETHEUS_URL | ||
| value: <REQUIRED> | ||
| - name: GRAFANA_CLOUD_PROMETHEUS_USERNAME | ||
| value: <REQUIRED> | ||
| - name: GRAFANA_CLOUD_TEMPO_ENDPOINT | ||
| value: <REQUIRED> | ||
| - name: GRAFANA_CLOUD_TEMPO_USERNAME | ||
| value: <REQUIRED> | ||
| # This is required for adaptive metric deduplication in Grafana Cloud | ||
| - name: POD_UID | ||
| valueFrom: | ||
| fieldRef: | ||
| apiVersion: v1 | ||
| fieldPath: metadata.uid | ||
| EOF | ||
| ``` | ||
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| ## Uninstalling the Chart | ||
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| To uninstall/delete the my-release deployment: | ||
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| ```console | ||
| helm delete my-release | ||
| ``` | ||
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| The command removes all the Kubernetes components associated with the chart and deletes the release. | ||
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| ## Upgrading | ||
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| A major chart version change indicates that there is an incompatible breaking change needing manual actions. | ||
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| ## Values | ||
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| | Key | Type | Default | Description | | ||
| |-----|------|---------|-------------| | ||
| | grafana-agent-deployment.agent.configMap.create | bool | `false` | | | ||
| | grafana-agent-deployment.agent.extraPorts[0].name | string | `"otlp-grpc"` | | | ||
| | grafana-agent-deployment.agent.extraPorts[0].port | int | `4317` | | | ||
| | grafana-agent-deployment.agent.extraPorts[0].protocol | string | `"TCP"` | | | ||
| | grafana-agent-deployment.agent.extraPorts[0].targetPort | int | `4317` | | | ||
| | grafana-agent-deployment.agent.extraPorts[1].name | string | `"otlp-http"` | | | ||
| | grafana-agent-deployment.agent.extraPorts[1].port | int | `4318` | | | ||
| | grafana-agent-deployment.agent.extraPorts[1].protocol | string | `"TCP"` | | | ||
| | grafana-agent-deployment.agent.extraPorts[1].targetPort | int | `4318` | | | ||
| | grafana-agent-deployment.agent.resources.requests.cpu | string | `"1"` | | | ||
| | grafana-agent-deployment.agent.resources.requests.memory | string | `"2G"` | | | ||
| | grafana-agent-deployment.controller.autoscaling.enabled | bool | `false` | Creates a HorizontalPodAutoscaler for controller type deployment. | | ||
| | grafana-agent-deployment.controller.autoscaling.maxReplicas | int | `5` | The upper limit for the number of replicas to which the autoscaler can scale up. | | ||
| | grafana-agent-deployment.controller.autoscaling.minReplicas | int | `2` | The lower limit for the number of replicas to which the autoscaler can scale down. | | ||
| | grafana-agent-deployment.controller.autoscaling.targetCPUUtilizationPercentage | int | `0` | Average CPU utilization across all relevant pods, a percentage of the requested value of the resource for the pods. Setting `targetCPUUtilizationPercentage` to 0 will disable CPU scaling. | | ||
| | grafana-agent-deployment.controller.autoscaling.targetMemoryUtilizationPercentage | int | `80` | Average Memory utilization across all relevant pods, a percentage of the requested value of the resource for the pods. Setting `targetMemoryUtilizationPercentage` to 0 will disable Memory scaling. | | ||
| | grafana-agent-deployment.controller.replicas | int | `1` | | | ||
| | grafana-agent-deployment.controller.type | string | `"deployment"` | | | ||
| | grafana-agent-deployment.nameOverride | string | `"deployment"` | Do not change this. | | ||
| | grafana-agent-statefulset.agent.configMap.create | bool | `false` | | | ||
| | grafana-agent-statefulset.agent.extraEnv[0].name | string | `"GRAFANA_CLOUD_API_KEY"` | | | ||
| | grafana-agent-statefulset.agent.extraEnv[0].value | string | `"<REQUIRED>"` | | | ||
| | grafana-agent-statefulset.agent.extraEnv[1].name | string | `"GRAFANA_CLOUD_PROMETHEUS_URL"` | | | ||
| | grafana-agent-statefulset.agent.extraEnv[1].value | string | `"<REQUIRED>"` | | | ||
| | grafana-agent-statefulset.agent.extraEnv[2].name | string | `"GRAFANA_CLOUD_PROMETHEUS_USERNAME"` | | | ||
| | grafana-agent-statefulset.agent.extraEnv[2].value | string | `"<REQUIRED>"` | | | ||
| | grafana-agent-statefulset.agent.extraEnv[3].name | string | `"GRAFANA_CLOUD_TEMPO_ENDPOINT"` | | | ||
| | grafana-agent-statefulset.agent.extraEnv[3].value | string | `"<REQUIRED>"` | | | ||
| | grafana-agent-statefulset.agent.extraEnv[4].name | string | `"GRAFANA_CLOUD_TEMPO_USERNAME"` | | | ||
| | grafana-agent-statefulset.agent.extraEnv[4].value | string | `"<REQUIRED>"` | | | ||
| | grafana-agent-statefulset.agent.extraEnv[5].name | string | `"POD_UID"` | | | ||
| | grafana-agent-statefulset.agent.extraEnv[5].valueFrom.fieldRef.apiVersion | string | `"v1"` | | | ||
| | grafana-agent-statefulset.agent.extraEnv[5].valueFrom.fieldRef.fieldPath | string | `"metadata.uid"` | | | ||
| | grafana-agent-statefulset.agent.extraPorts[0].name | string | `"otlp-grpc"` | | | ||
| | grafana-agent-statefulset.agent.extraPorts[0].port | int | `4317` | | | ||
| | grafana-agent-statefulset.agent.extraPorts[0].protocol | string | `"TCP"` | | | ||
| | grafana-agent-statefulset.agent.extraPorts[0].targetPort | int | `4317` | | | ||
| | grafana-agent-statefulset.agent.resources.requests.cpu | string | `"1"` | | | ||
| | grafana-agent-statefulset.agent.resources.requests.memory | string | `"2G"` | | | ||
| | grafana-agent-statefulset.controller.autoscaling.enabled | bool | `false` | Creates a HorizontalPodAutoscaler for controller type deployment. | | ||
| | grafana-agent-statefulset.controller.autoscaling.maxReplicas | int | `5` | The upper limit for the number of replicas to which the autoscaler can scale up. | | ||
| | grafana-agent-statefulset.controller.autoscaling.minReplicas | int | `2` | The lower limit for the number of replicas to which the autoscaler can scale down. | | ||
| | grafana-agent-statefulset.controller.autoscaling.targetCPUUtilizationPercentage | int | `0` | Average CPU utilization across all relevant pods, a percentage of the requested value of the resource for the pods. Setting `targetCPUUtilizationPercentage` to 0 will disable CPU scaling. | | ||
| | grafana-agent-statefulset.controller.autoscaling.targetMemoryUtilizationPercentage | int | `80` | Average Memory utilization across all relevant pods, a percentage of the requested value of the resource for the pods. Setting `targetMemoryUtilizationPercentage` to 0 will disable Memory scaling. | | ||
| | grafana-agent-statefulset.controller.replicas | int | `1` | | | ||
| | grafana-agent-statefulset.controller.type | string | `"statefulset"` | | | ||
| | grafana-agent-statefulset.nameOverride | string | `"statefulset"` | Do not change this. | | ||
| | grafana-agent-statefulset.rbac.create | bool | `false` | | | ||
| | grafana-agent-statefulset.service.clusterIP | string | `"None"` | | | ||
| | grafana-agent-statefulset.serviceAccount.create | bool | `false` | | | ||
| | metricsGeneration.dimensions | list | `["service.namespace","service.version","deployment.environment","k8s.cluster.name"]` | Additional dimensions to add to generated metrics. | | ||
| | metricsGeneration.enabled | bool | `true` | Toggle generation of spanmetrics and servicegraph metrics. | | ||
| | sampling.decisionWait | string | `"15s"` | Wait time since the first span of a trace before making a sampling decision. | | ||
| | sampling.enabled | bool | `true` | Toggle tail sampling. | | ||
| | sampling.extraPolicies | string | A policy to sample long requests is added by default. | User-defined policies in river format. | | ||
| | sampling.failedRequests.percentage | int | `50` | Percentage of failed requests to sample. | | ||
| | sampling.failedRequests.sample | bool | `false` | Toggle sampling failed requests. | | ||
| | sampling.successfulRequests.percentage | int | `10` | Percentage of successful requests to sample. | | ||
| | sampling.successfulRequests.sample | bool | `true` | Toggle sampling successful requests. | | ||
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| {{ template "chart.header" . }} | ||
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| {{ template "chart.versionBadge" . }}{{ template "chart.typeBadge" . }}{{ template "chart.appVersionBadge" . }} | ||
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| {{ template "chart.description" . }} | ||
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| This chart deploys the following architecture to your environment: | ||
|  | ||
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| Note: by default, only OTLP traces are accepted at the load balancing layer. | ||
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| ## Chart Repo | ||
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| Add the following repo to use the chart: | ||
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| ```console | ||
| helm repo add grafana https://grafana.github.io/helm-charts | ||
| ``` | ||
| ## Installing the Chart | ||
|
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| Use the following command to install the chart with the release name `my-release`. Make sure to populate the required values. | ||
|
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| ```console | ||
| helm install my-release grafana/grafana-sampling --values - <<EOF | less | ||
| grafana-agent-statefulset: | ||
| agent: | ||
| extraEnv: | ||
| - name: GRAFANA_CLOUD_API_KEY | ||
| value: <REQUIRED> | ||
| - name: GRAFANA_CLOUD_PROMETHEUS_URL | ||
| value: <REQUIRED> | ||
| - name: GRAFANA_CLOUD_PROMETHEUS_USERNAME | ||
| value: <REQUIRED> | ||
| - name: GRAFANA_CLOUD_TEMPO_ENDPOINT | ||
| value: <REQUIRED> | ||
| - name: GRAFANA_CLOUD_TEMPO_USERNAME | ||
| value: <REQUIRED> | ||
| # This is required for adaptive metric deduplication in Grafana Cloud | ||
| - name: POD_UID | ||
| valueFrom: | ||
| fieldRef: | ||
| apiVersion: v1 | ||
| fieldPath: metadata.uid | ||
| EOF | ||
| ``` | ||
|
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| ## Uninstalling the Chart | ||
|
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| To uninstall/delete the my-release deployment: | ||
|
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| ```console | ||
| helm delete my-release | ||
| ``` | ||
|
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| The command removes all the Kubernetes components associated with the chart and deletes the release. | ||
|
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| ## Upgrading | ||
|
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| A major chart version change indicates that there is an incompatible breaking change needing manual actions. | ||
|
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| {{ template "chart.valuesSection" . }} | ||
|
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charts/grafana-sampling/templates/_agent_config_deployment.river.txt
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| {{- define "agent.config.deployment" -}} | ||
| {{- include "deployment.receiver.otlp" . }} | ||
| {{- include "deployment.processor.batch" . }} | ||
| {{- include "deployment.exporter.loadbalancing" . }} | ||
| {{- end -}} |
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charts/grafana-sampling/templates/_agent_config_statefulset.river.txt
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| {{- define "agent.config.statefulset" -}} | ||
| {{- include "statefulset.receiver.otlp" . }} | ||
| {{- if .Values.metricsGeneration.enabled -}} | ||
| {{- include "statefulset.connector.spanmetrics" . }} | ||
| {{- include "statefulset.processor.transform.drop_unneeded_resource_attributes" . }} | ||
| {{- include "statefulset.processor.transform.use_grafana_metric_names" . }} | ||
| {{- include "statefulset.processor.filter" . }} | ||
| {{- include "statefulset.connector.servicegraph" . }} | ||
| {{- include "statefulset.exporter.prometheus" . }} | ||
| {{- include "statefulset.prometheus.remote_write" . }} | ||
| {{- end -}} | ||
| {{- if .Values.sampling.enabled -}} | ||
| {{- include "statefulset.processor.tail_sampling" . }} | ||
| {{- end -}} | ||
| {{- include "statefulset.processor.batch" . }} | ||
| {{- include "exporter.otlp" . }} | ||
| {{- include "auth.basic" . }} | ||
| {{- end -}} |
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| {{/* use the release name as the serviceAccount name for deployment and statefulset agents */}} | ||
| {{- define "grafana-agent.serviceAccountName" -}} | ||
| {{- default .Release.Name }} | ||
| {{- end }} | ||
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| {{/* Calculate name of image ID to use for "grafana-agent". */}} | ||
| {{- define "grafana-agent.imageId" -}} | ||
| {{- printf ":%s" .Chart.AppVersion }} | ||
| {{- end }} |
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charts/grafana-sampling/templates/_otelcol_auth_basic.river.txt
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| {{- define "auth.basic" -}} | ||
| otelcol.auth.basic "grafana_cloud_tempo" { | ||
| // https://grafana.com/docs/agent/latest/flow/reference/components/otelcol.auth.basic/ | ||
| username = env("GRAFANA_CLOUD_TEMPO_USERNAME") | ||
| password = env("GRAFANA_CLOUD_API_KEY") | ||
| } | ||
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| {{ end }} |
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charts/grafana-sampling/templates/_otelcol_connector_servicegraph.river.txt
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| {{- define "statefulset.connector.servicegraph" -}} | ||
| otelcol.connector.servicegraph "default" { | ||
| // https://grafana.com/docs/agent/latest/flow/reference/components/otelcol.connector.servicegraph/ | ||
| dimensions = [ | ||
| {{- range $.Values.metricsGeneration.dimensions }} | ||
| {{ . | quote }}, | ||
| {{- end }} | ||
| ] | ||
| latency_histogram_buckets = ["0s", "0.005s", "0.01s", "0.025s", "0.05s", "0.075s", "0.1s", "0.25s", "0.5s", "0.75s", "1s", "2.5s", "5s", "7.5s", "10s"] | ||
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| store { | ||
| ttl = "2s" | ||
| } | ||
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| output { | ||
| metrics = [otelcol.processor.batch.default.input] | ||
| } | ||
| } | ||
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| {{ end }} |
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charts/grafana-sampling/templates/_otelcol_connector_spanmetrics.river.txt
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| {{- define "statefulset.connector.spanmetrics" -}} | ||
| otelcol.connector.spanmetrics "default" { | ||
| // https://grafana.com/docs/agent/latest/flow/reference/components/otelcol.connector.spanmetrics/ | ||
| {{- range $.Values.metricsGeneration.dimensions }} | ||
| dimension { | ||
| name = {{ . | quote }} | ||
| } | ||
| {{- end }} | ||
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| namespace = "traces.spanmetrics" | ||
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| histogram { | ||
| unit = "s" | ||
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| explicit { | ||
| buckets = ["0s", "0.005s", "0.01s", "0.025s", "0.05s", "0.075s", "0.1s", "0.25s", "0.5s", "0.75s", "1s", "2.5s", "5s", "7.5s", "10s"] | ||
| } | ||
| } | ||
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| output { | ||
| metrics = [otelcol.processor.filter.drop_unneeded_span_metrics.input] | ||
| } | ||
| } | ||
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| {{ end }} |
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charts/grafana-sampling/templates/_otelcol_exporter_loadbalancing.river.txt
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| {{- define "deployment.exporter.loadbalancing" -}} | ||
| otelcol.exporter.loadbalancing "default" { | ||
| // https://grafana.com/docs/agent/latest/flow/reference/components/otelcol.exporter.loadbalancing/ | ||
| resolver { | ||
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| kubernetes { | ||
| service = "{{ .Release.Name }}-statefulset.{{ .Release.Namespace }}" | ||
| } | ||
| } | ||
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| protocol { | ||
| otlp { | ||
| client { | ||
| tls { | ||
| insecure = true | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| {{ end }} |
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charts/grafana-sampling/templates/_otelcol_exporter_otlp.river.txt
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| {{- define "exporter.otlp" -}} | ||
| otelcol.exporter.otlp "grafana_cloud_tempo" { | ||
| // https://grafana.com/docs/agent/latest/flow/reference/components/otelcol.exporter.otlp/ | ||
| client { | ||
| endpoint = env("GRAFANA_CLOUD_TEMPO_ENDPOINT") | ||
| auth = otelcol.auth.basic.grafana_cloud_tempo.handler | ||
| } | ||
| } | ||
|
|
||
| {{ end }} |
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8
charts/grafana-sampling/templates/_otelcol_exporter_prometheus.river.txt
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|---|---|---|
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| {{- define "statefulset.exporter.prometheus" -}} | ||
| otelcol.exporter.prometheus "grafana_cloud_prometheus" { | ||
| // https://grafana.com/docs/agent/latest/flow/reference/components/otelcol.exporter.prometheus/ | ||
| add_metric_suffixes = false | ||
| forward_to = [prometheus.remote_write.grafana_cloud_prometheus.receiver] | ||
| } | ||
|
|
||
| {{ end }} |
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charts/grafana-sampling/templates/_otelcol_processor_batch.river.txt
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| {{- define "deployment.processor.batch" -}} | ||
| otelcol.processor.batch "default" { | ||
| // https://grafana.com/docs/agent/latest/flow/reference/components/otelcol.processor.batch/ | ||
| output { | ||
| traces = [otelcol.exporter.loadbalancing.default.input] | ||
| } | ||
| } | ||
|
|
||
| {{ end }} | ||
|
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| {{- define "statefulset.processor.batch" -}} | ||
| otelcol.processor.batch "default" { | ||
| // https://grafana.com/docs/agent/latest/flow/reference/components/otelcol.processor.batch/ | ||
| output { | ||
| {{ if .Values.metricsGeneration.Enabled }} | ||
| metrics = [otelcol.exporter.prometheus.grafana_cloud_prometheus.input] | ||
| {{ end }} | ||
| traces = [otelcol.exporter.otlp.grafana_cloud_tempo.input] | ||
| } | ||
| } | ||
|
|
||
| {{ end }} |
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