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add grafana agent
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‎charts/grafana-agent/Chart.yaml‎

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apiVersion: v2
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name: grafana-agent
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description: |-
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Helm chart to deploy [grafana-agent](https://github.com/grafana/agent).
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type: application
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version: 0.0.1
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appVersion: v0.26.1
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home: https://github.com/slamdev/helm-charts/tree/master/charts/grafana-agent
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icon: https://grafana.com/static/assets/internal/grafana_logo-web-white-text.svg
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maintainers:
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- name: slamdev
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email: valentin.fedoskin@gmail.com

‎charts/grafana-agent/README.md‎

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# grafana-agent
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![Version: 0.0.1](https://img.shields.io/badge/Version-0.0.1-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: v0.26.1](https://img.shields.io/badge/AppVersion-v0.26.1-informational?style=flat-square)
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Helm chart to deploy [grafana-agent](https://github.com/grafana/agent).
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**Homepage:** <https://github.com/slamdev/helm-charts/tree/master/charts/grafana-agent>
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## Maintainers
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| Name | Email | Url |
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| ---- | ------ | --- |
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| slamdev | <valentin.fedoskin@gmail.com> | |
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## Values
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| Key | Type | Default | Description |
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|-----|------|---------|-------------|
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| additionalResources | list | `[]` | list of additional resources to create (are processed via `tpl` function) |
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| affinity | object | `{}` | affinity for scheduler pod assignment |
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| args[0] | string | `"--config.file=/grafana-agent.yaml"` | |
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| conf | string | `"server:\n log_level: info"` | grafana-agent config to provision inside of the container |
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| containerPorts | list | `[{"containerPort":12345,"name":"http"},{"containerPort":12346,"name":"grpc"}]` | ports exposed by container |
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| env | list | `[{"name":"HOSTNAME","valueFrom":{"fieldRef":{"fieldPath":"spec.nodeName"}}},{"name":"POD_NAME","valueFrom":{"fieldRef":{"fieldPath":"metadata.name"}}},{"name":"POD_IP","valueFrom":{"fieldRef":{"fieldPath":"status.podIP"}}}]` | additional environment variables for the deployment |
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| fullnameOverride | string | `""` | full name of the chart. |
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| image.pullPolicy | string | `"IfNotPresent"` | image pull policy |
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| image.repository | string | `"grafana/grafana-agent"` | image repository |
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| image.tag | string | `""` | image tag (chart's appVersion value will be used if not set) |
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| imagePullSecrets | list | `[]` | image pull secret for private images |
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| livenessProbe.httpGet.path | string | `"/http-metrics/-/ready"` | path for liveness probe |
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| livenessProbe.httpGet.port | string | `"http"` | port for liveness probe |
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| nameOverride | string | `""` | override name of the chart |
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| nodeSelector | object | `{}` | node for scheduler pod assignment |
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| podAnnotations | object | `{}` | annotations to add to the pod |
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| podSecurityContext | object | `{}` | specifies security settings for a pod |
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| readinessProbe.httpGet.path | string | `"/http-metrics/-/ready"` | path for readiness probe |
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| readinessProbe.httpGet.port | string | `"http"` | port for readiness probe |
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| resources | object | `{}` | custom resource configuration |
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| securityContext | object | `{}` | specifies security settings for a container |
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| service.annotations | object | `{}` | service annotations |
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| service.ports | list | `[{"name":"http","port":12345,"targetPort":"http"},{"name":"grpc","port":12346,"targetPort":"grpc"}]` | service ports |
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| service.type | string | `"ClusterIP"` | service type |
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| serviceAccount.annotations | object | `{}` | annotations to add to the service account |
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| serviceAccount.create | bool | `false` | specifies whether a service account should be created |
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| serviceAccount.name | string | `nil` | the name of the service account to use; if not set and create is true, a name is generated using the fullname template |
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| startupProbe.httpGet.path | string | `"/http-metrics/-/ready"` | path for startup probe |
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| startupProbe.httpGet.port | string | `"http"` | port for startup probe |
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| tolerations | list | `[]` | tolerations for scheduler pod assignment |
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| volumeMounts | list | `[]` | additional volume mounts |
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| volumes | list | `[]` | additional volumes |
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| workload.annotations | object | `{}` | annotations to add to the workload |
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| workload.daemonSetSpec.updateStrategy | object | `{}` | an update strategy to replace existing DaemonSet pods with new pods |
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| workload.deploymentSpec.replicas | int | `1` | number of desired pods |
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| workload.deploymentSpec.strategy | object | `{}` | the deployment strategy to use to replace existing pods with new ones. |
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| workload.kind | string | `"deployment"` | can be deployment, statefulSet or daemonSet |
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| workload.labels | object | `{}` | labels to add to the workload |
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| workload.statefulSetSpec.podManagementPolicy | string | `"OrderedReady"` | controls how pods are created during initial scale up |
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| workload.statefulSetSpec.replicas | int | `1` | number of desired pods |
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| workload.statefulSetSpec.updateStrategy | object | `{}` | indicates the StatefulSetUpdateStrategy that will be employed to update Pods in the StatefulSet when a revision is made to Template |
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| workload.statefulSetSpec.volumeClaimTemplates | object | `{}` | a list of claims that pods are allowed to reference |

‎charts/grafana-agent/templates/NOTES.txt‎

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1. Get the application URL by running these commands:
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{{- if contains "NodePort" .Values.service.type }}
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export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "grafana-agent.fullname" . }})
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export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
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echo http://$NODE_IP:$NODE_PORT
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{{- else if contains "LoadBalancer" .Values.service.type }}
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NOTE: It may take a few minutes for the LoadBalancer IP to be available.
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You can watch the status of by running 'kubectl get --namespace {{ .Release.Namespace }} svc -w {{ include "grafana-agent.fullname" . }}'
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export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "grafana-agent.fullname" . }} --template "{{"{{ range (index .status.loadBalancer.ingress 0) }}{{.}}{{ end }}"}}")
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echo http://$SERVICE_IP:{{ .Values.service.port }}
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{{- else if contains "ClusterIP" .Values.service.type }}
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export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app.kubernetes.io/name={{ include "grafana-agent.name" . }},app.kubernetes.io/instance={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
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echo "Visit http://127.0.0.1:8080 to use your application"
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kubectl --namespace {{ .Release.Namespace }} port-forward $POD_NAME 8080:80
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{{- end }}

‎charts/grafana-agent/templates/_helpers.tpl‎

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{{/* vim: set filetype=mustache: */}}
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{{/*
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Expand the name of the chart.
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*/}}
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{{- define "grafana-agent.name" -}}
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{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
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{{- end -}}
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{{/*
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Create a default fully qualified app name.
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We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
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If release name contains chart name it will be used as a full name.
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*/}}
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{{- define "grafana-agent.fullname" -}}
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{{- if .Values.fullnameOverride -}}
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{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
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{{- else -}}
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{{- $name := default .Chart.Name .Values.nameOverride -}}
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{{- if contains $name .Release.Name -}}
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{{- .Release.Name | trunc 63 | trimSuffix "-" -}}
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{{- else -}}
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{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
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{{- end -}}
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{{- end -}}
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{{- end -}}
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{{/*
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Create chart name and version as used by the chart label.
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*/}}
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{{- define "grafana-agent.chart" -}}
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{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
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{{- end -}}
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{{/*
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Common labels
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*/}}
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{{- define "grafana-agent.labels" -}}
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helm.sh/chart: {{ include "grafana-agent.chart" . }}
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{{ include "grafana-agent.selectorLabels" . }}
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{{- if .Chart.AppVersion }}
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app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
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{{- end }}
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app.kubernetes.io/managed-by: {{ .Release.Service }}
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{{- end -}}
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{{/*
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Selector labels
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*/}}
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{{- define "grafana-agent.selectorLabels" -}}
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app.kubernetes.io/name: {{ include "grafana-agent.name" . }}
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app.kubernetes.io/instance: {{ .Release.Name }}
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{{- end -}}
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{{/*
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Create the name of the service account to use
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*/}}
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{{- define "grafana-agent.serviceAccountName" -}}
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{{- if .Values.serviceAccount.create -}}
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{{ default (include "grafana-agent.fullname" .) .Values.serviceAccount.name }}
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{{- else -}}
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{{ default "default" .Values.serviceAccount.name }}
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{{- end -}}
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{{- end -}}
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{{/*
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Create the tag for the docker image to use
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*/}}
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{{- define "grafana-agent.tag" -}}
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{{- .Values.image.tag | default .Chart.AppVersion -}}
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{{- end -}}
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{{/*
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grafana-agent.rawResource will create a resource template that can be
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merged with each item in `.Values.additionalResources`.
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*/}}
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{{- define "grafana-agent.rawResource" -}}
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metadata:
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labels:
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{{- include "grafana-agent.labels" . | nindent 4 }}
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{{- end }}

‎charts/grafana-agent/templates/_pod.tpl‎

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{{- define "grafana-agent.pod" -}}
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metadata:
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labels:
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{{- include "grafana-agent.selectorLabels" . | nindent 4 }}
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annotations:
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checksum/config: {{ include (print $.Template.BasePath "/configmap.yaml") . | sha256sum }}
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{{- with .Values.podAnnotations }}
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{{- toYaml . | nindent 4 }}
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{{- end }}
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spec:
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{{- with .Values.imagePullSecrets }}
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imagePullSecrets:
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{{- toYaml . | nindent 4 }}
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{{- end }}
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serviceAccountName: {{ include "grafana-agent.serviceAccountName" . }}
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securityContext:
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{{- toYaml .Values.podSecurityContext | nindent 4 }}
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containers:
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- name: {{ .Chart.Name }}
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{{- with .Values.args }}
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args:
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{{- toYaml . | nindent 8 }}
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{{- end }}
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securityContext:
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{{- toYaml .Values.securityContext | nindent 8 }}
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image: "{{ .Values.image.repository }}:{{ include "grafana-agent.tag" . }}"
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imagePullPolicy: {{ .Values.image.pullPolicy }}
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{{- with .Values.containerPorts }}
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ports:
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{{- toYaml . | nindent 8 }}
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{{- end }}
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livenessProbe:
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{{- toYaml .Values.livenessProbe | nindent 8 }}
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readinessProbe:
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{{- toYaml .Values.readinessProbe | nindent 8 }}
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startupProbe:
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{{- toYaml .Values.startupProbe | nindent 8 }}
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resources:
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{{- toYaml .Values.resources | nindent 8 }}
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{{- with .Values.env }}
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env:
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{{- toYaml . | nindent 8 }}
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{{- end }}
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volumeMounts:
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- name: {{ include "grafana-agent.fullname" . }}
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mountPath: /grafana-agent.yaml
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subPath: grafana-agent.yaml
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{{- with .Values.volumeMounts }}
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{{- toYaml . | nindent 8 }}
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{{- end }}
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volumes:
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- name: {{ include "grafana-agent.fullname" . }}
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configMap:
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name: {{ include "grafana-agent.fullname" . }}
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defaultMode: 0644
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{{- with .Values.volumes }}
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{{- toYaml . | nindent 4 }}
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{{- end }}
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{{- with .Values.nodeSelector }}
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nodeSelector:
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{{- toYaml . | nindent 4 }}
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{{- end }}
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{{- with .Values.affinity }}
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affinity:
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{{- toYaml . | nindent 4 }}
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{{- end }}
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{{- with .Values.tolerations }}
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tolerations:
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{{- toYaml . | nindent 4 }}
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{{- end }}
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{{- end -}}

‎charts/grafana-agent/templates/additional-resources.yaml‎

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{{- $template := fromYaml (include "grafana-agent.rawResource" .) -}}
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{{- range $i, $t := .Values.additionalResources }}
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---
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{{ toYaml (merge (tpl $t $ | fromYaml) $template) -}}
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{{- end }}

‎charts/grafana-agent/templates/configmap.yaml‎

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apiVersion: v1
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kind: ConfigMap
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metadata:
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name: {{ include "grafana-agent.fullname" . }}
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namespace: {{ .Release.Namespace }}
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labels:
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{{- include "grafana-agent.labels" . | nindent 4 }}
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data:
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grafana-agent.yaml: |-
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{{ .Values.conf | nindent 4 }}

‎charts/grafana-agent/templates/daemonset.yaml‎

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{{- if eq .Values.workload.kind "daemonSet" }}
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apiVersion: apps/v1
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kind: DaemonSet
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metadata:
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name: {{ include "grafana-agent.fullname" . }}
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namespace: {{ .Release.Namespace }}
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{{- with .Values.workload.annotations }}
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annotations:
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{{- toYaml . | nindent 4 }}
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{{- end }}
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labels:
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{{- include "grafana-agent.labels" . | nindent 4 }}
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{{- .Values.workload.labels | toYaml . | nindent 4 }}
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spec:
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{{- with .Values.workload.daemonSetSpec.updateStrategy }}
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updateStrategy:
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{{- toYaml . | nindent 4 }}
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{{- end }}
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selector:
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matchLabels:
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{{- include "grafana-agent.selectorLabels" . | nindent 6 }}
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template:
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{{- include "grafana-agent.pod" . | nindent 4 }}
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{{- end }}

‎charts/grafana-agent/templates/deployment.yaml‎

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{{- if eq .Values.workload.kind "deployment" }}
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: {{ include "grafana-agent.fullname" . }}
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namespace: {{ .Release.Namespace }}
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{{- with .Values.workload.annotations }}
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annotations:
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{{- toYaml . | nindent 4 }}
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{{- end }}
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labels:
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{{- include "grafana-agent.labels" . | nindent 4 }}
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{{- .Values.workload.labels | toYaml . | nindent 4 }}
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spec:
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replicas: {{ .Values.workload.deploymentSpec.replicas }}
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{{- with .Values.workload.deploymentSpec.strategy }}
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strategy:
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{{- toYaml . | nindent 4 }}
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{{- end }}
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selector:
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matchLabels:
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{{- include "grafana-agent.selectorLabels" . | nindent 6 }}
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template:
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{{- include "grafana-agent.pod" . | nindent 4 }}
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{{- end }}

‎charts/grafana-agent/templates/service.yaml‎

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apiVersion: v1
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kind: Service
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metadata:
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name: {{ include "grafana-agent.fullname" . }}
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namespace: {{ .Release.Namespace }}
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labels:
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{{- include "grafana-agent.labels" . | nindent 4 }}
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{{- with .Values.service.annotations }}
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annotations:
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{{- toYaml . | nindent 4 }}
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{{- end }}
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spec:
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type: {{ .Values.service.type }}
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{{- with .Values.service.ports }}
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ports:
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{{- toYaml . | nindent 4 }}
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{{- end }}
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selector:
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{{- include "grafana-agent.selectorLabels" . | nindent 4 }}

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