add grafana agent

slamdev · Aug 15, 2022 · e9fe43f · e9fe43f
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diff --git a/charts/grafana-agent/Chart.yaml b/charts/grafana-agent/Chart.yaml
@@ -0,0 +1,12 @@
+apiVersion: v2
+name: grafana-agent
+description: |-
+  Helm chart to deploy [grafana-agent](https://github.com/grafana/agent).
+type: application
+version: 0.0.1
+appVersion: v0.26.1
+home: https://github.com/slamdev/helm-charts/tree/master/charts/grafana-agent
+icon: https://grafana.com/static/assets/internal/grafana_logo-web-white-text.svg
+maintainers:
+  - name: slamdev
+    email: [email protected]
diff --git a/charts/grafana-agent/README.md b/charts/grafana-agent/README.md
@@ -0,0 +1,60 @@
+# grafana-agent
+
+![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)
+
+Helm chart to deploy [grafana-agent](https://github.com/grafana/agent).
+
+**Homepage:** <https://github.com/slamdev/helm-charts/tree/master/charts/grafana-agent>
+
+## Maintainers
+
+| Name | Email | Url |
+| ---- | ------ | --- |
+| slamdev | <[email protected]> |  |
+
+## Values
+
+| Key | Type | Default | Description |
+|-----|------|---------|-------------|
+| additionalResources | list | `[]` | list of additional resources to create (are processed via `tpl` function) |
+| affinity | object | `{}` | affinity for scheduler pod assignment |
+| args[0] | string | `"--config.file=/grafana-agent.yaml"` |  |
+| conf | string | `"server:\n  log_level: info"` | grafana-agent config to provision inside of the container |
+| containerPorts | list | `[{"containerPort":12345,"name":"http"},{"containerPort":12346,"name":"grpc"}]` | ports exposed by container |
+| 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 |
+| fullnameOverride | string | `""` | full name of the chart. |
+| image.pullPolicy | string | `"IfNotPresent"` | image pull policy |
+| image.repository | string | `"grafana/grafana-agent"` | image repository |
+| image.tag | string | `""` | image tag (chart's appVersion value will be used if not set) |
+| imagePullSecrets | list | `[]` | image pull secret for private images |
+| livenessProbe.httpGet.path | string | `"/http-metrics/-/ready"` | path for liveness probe |
+| livenessProbe.httpGet.port | string | `"http"` | port for liveness probe |
+| nameOverride | string | `""` | override name of the chart |
+| nodeSelector | object | `{}` | node for scheduler pod assignment |
+| podAnnotations | object | `{}` | annotations to add to the pod |
+| podSecurityContext | object | `{}` | specifies security settings for a pod |
+| readinessProbe.httpGet.path | string | `"/http-metrics/-/ready"` | path for readiness probe |
+| readinessProbe.httpGet.port | string | `"http"` | port for readiness probe |
+| resources | object | `{}` | custom resource configuration |
+| securityContext | object | `{}` | specifies security settings for a container |
+| service.annotations | object | `{}` | service annotations |
+| service.ports | list | `[{"name":"http","port":12345,"targetPort":"http"},{"name":"grpc","port":12346,"targetPort":"grpc"}]` | service ports |
+| service.type | string | `"ClusterIP"` | service type |
+| serviceAccount.annotations | object | `{}` | annotations to add to the service account |
+| serviceAccount.create | bool | `false` | specifies whether a service account should be created |
+| 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 |
+| startupProbe.httpGet.path | string | `"/http-metrics/-/ready"` | path for startup probe |
+| startupProbe.httpGet.port | string | `"http"` | port for startup probe |
+| tolerations | list | `[]` | tolerations for scheduler pod assignment |
+| volumeMounts | list | `[]` | additional volume mounts |
+| volumes | list | `[]` | additional volumes |
+| workload.annotations | object | `{}` | annotations to add to the workload |
+| workload.daemonSetSpec.updateStrategy | object | `{}` | an update strategy to replace existing DaemonSet pods with new pods |
+| workload.deploymentSpec.replicas | int | `1` | number of desired pods |
+| workload.deploymentSpec.strategy | object | `{}` | the deployment strategy to use to replace existing pods with new ones. |
+| workload.kind | string | `"deployment"` | can be deployment, statefulSet or daemonSet |
+| workload.labels | object | `{}` | labels to add to the workload |
+| workload.statefulSetSpec.podManagementPolicy | string | `"OrderedReady"` | controls how pods are created during initial scale up |
+| workload.statefulSetSpec.replicas | int | `1` | number of desired pods |
+| workload.statefulSetSpec.updateStrategy | object | `{}` | indicates the StatefulSetUpdateStrategy that will be employed to update Pods in the StatefulSet when a revision is made to Template |
+| workload.statefulSetSpec.volumeClaimTemplates | object | `{}` | a list of claims that pods are allowed to reference |
diff --git a/charts/grafana-agent/templates/NOTES.txt b/charts/grafana-agent/templates/NOTES.txt
@@ -0,0 +1,15 @@
+1. Get the application URL by running these commands:
+{{- if contains "NodePort" .Values.service.type }}
+  export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "grafana-agent.fullname" . }})
+  export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
+  echo http://$NODE_IP:$NODE_PORT
+{{- else if contains "LoadBalancer" .Values.service.type }}
+     NOTE: It may take a few minutes for the LoadBalancer IP to be available.
+           You can watch the status of by running 'kubectl get --namespace {{ .Release.Namespace }} svc -w {{ include "grafana-agent.fullname" . }}'
+  export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "grafana-agent.fullname" . }} --template "{{"{{ range (index .status.loadBalancer.ingress 0) }}{{.}}{{ end }}"}}")
+  echo http://$SERVICE_IP:{{ .Values.service.port }}
+{{- else if contains "ClusterIP" .Values.service.type }}
+  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}")
+  echo "Visit http://127.0.0.1:8080 to use your application"
+  kubectl --namespace {{ .Release.Namespace }} port-forward $POD_NAME 8080:80
+{{- end }}
diff --git a/charts/grafana-agent/templates/_helpers.tpl b/charts/grafana-agent/templates/_helpers.tpl
@@ -0,0 +1,80 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "grafana-agent.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "grafana-agent.fullname" -}}
+{{- if .Values.fullnameOverride -}}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- $name := default .Chart.Name .Values.nameOverride -}}
+{{- if contains $name .Release.Name -}}
+{{- .Release.Name | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "grafana-agent.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Common labels
+*/}}
+{{- define "grafana-agent.labels" -}}
+helm.sh/chart: {{ include "grafana-agent.chart" . }}
+{{ include "grafana-agent.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end -}}
+
+{{/*
+Selector labels
+*/}}
+{{- define "grafana-agent.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "grafana-agent.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end -}}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "grafana-agent.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create -}}
+    {{ default (include "grafana-agent.fullname" .) .Values.serviceAccount.name }}
+{{- else -}}
+    {{ default "default" .Values.serviceAccount.name }}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Create the tag for the docker image to use
+*/}}
+{{- define "grafana-agent.tag" -}}
+{{- .Values.image.tag | default .Chart.AppVersion -}}
+{{- end -}}
+
+{{/*
+grafana-agent.rawResource will create a resource template that can be
+merged with each item in `.Values.additionalResources`.
+*/}}
+{{- define "grafana-agent.rawResource" -}}
+metadata:
+  labels:
+    {{- include "grafana-agent.labels" . | nindent 4 }}
+{{- end }}
diff --git a/charts/grafana-agent/templates/_pod.tpl b/charts/grafana-agent/templates/_pod.tpl
@@ -0,0 +1,72 @@
+{{- define "grafana-agent.pod" -}}
+metadata:
+  labels:
+    {{- include "grafana-agent.selectorLabels" . | nindent 4 }}
+  annotations:
+    checksum/config: {{ include (print $.Template.BasePath "/configmap.yaml") . | sha256sum }}
+  {{- with .Values.podAnnotations }}
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+{{- with .Values.imagePullSecrets }}
+  imagePullSecrets:
+    {{- toYaml . | nindent 4 }}
+{{- end }}
+  serviceAccountName: {{ include "grafana-agent.serviceAccountName" . }}
+  securityContext:
+    {{- toYaml .Values.podSecurityContext | nindent 4 }}
+  containers:
+    - name: {{ .Chart.Name }}
+    {{- with .Values.args }}
+      args:
+        {{- toYaml . | nindent 8 }}
+    {{- end }}
+      securityContext:
+        {{- toYaml .Values.securityContext | nindent 8 }}
+      image: "{{ .Values.image.repository }}:{{ include "grafana-agent.tag" . }}"
+      imagePullPolicy: {{ .Values.image.pullPolicy }}
+    {{- with .Values.containerPorts }}
+      ports:
+        {{- toYaml . | nindent 8 }}
+    {{- end }}
+      livenessProbe:
+        {{- toYaml .Values.livenessProbe | nindent 8 }}
+      readinessProbe:
+        {{- toYaml .Values.readinessProbe | nindent 8 }}
+      startupProbe:
+        {{- toYaml .Values.startupProbe | nindent 8 }}
+      resources:
+        {{- toYaml .Values.resources | nindent 8 }}
+    {{- with .Values.env }}
+      env:
+      {{- toYaml . | nindent 8 }}
+    {{- end }}
+      volumeMounts:
+        - name: {{ include "grafana-agent.fullname" . }}
+          mountPath: /grafana-agent.yaml
+          subPath: grafana-agent.yaml
+    {{- with .Values.volumeMounts }}
+        {{- toYaml . | nindent 8 }}
+    {{- end }}
+  volumes:
+    - name: {{ include "grafana-agent.fullname" . }}
+      configMap:
+        name: {{ include "grafana-agent.fullname" . }}
+        defaultMode: 0644
+{{- with .Values.volumes }}
+    {{- toYaml . | nindent 4 }}
+{{- end }}
+{{- with .Values.nodeSelector }}
+  nodeSelector:
+    {{- toYaml . | nindent 4 }}
+{{- end }}
+{{- with .Values.affinity }}
+  affinity:
+    {{- toYaml . | nindent 4 }}
+{{- end }}
+{{- with .Values.tolerations }}
+  tolerations:
+    {{- toYaml . | nindent 4 }}
+{{- end }}
+
+{{- end -}}
diff --git a/charts/grafana-agent/templates/additional-resources.yaml b/charts/grafana-agent/templates/additional-resources.yaml
@@ -0,0 +1,5 @@
+{{- $template := fromYaml (include "grafana-agent.rawResource" .) -}}
+{{- range $i, $t := .Values.additionalResources }}
+---
+{{ toYaml (merge (tpl $t $ | fromYaml) $template) -}}
+{{- end }}
diff --git a/charts/grafana-agent/templates/configmap.yaml b/charts/grafana-agent/templates/configmap.yaml
@@ -0,0 +1,10 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ include "grafana-agent.fullname" . }}
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "grafana-agent.labels" . | nindent 4 }}
+data:
+  grafana-agent.yaml: |-
+    {{ .Values.conf | nindent 4 }}
diff --git a/charts/grafana-agent/templates/daemonset.yaml b/charts/grafana-agent/templates/daemonset.yaml
@@ -0,0 +1,24 @@
+{{- if eq .Values.workload.kind "daemonSet" }}
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: {{ include "grafana-agent.fullname" . }}
+  namespace: {{ .Release.Namespace }}
+{{- with .Values.workload.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+{{- end }}
+  labels:
+    {{- include "grafana-agent.labels" . | nindent 4 }}
+    {{- .Values.workload.labels | toYaml . | nindent 4 }}
+spec:
+{{- with .Values.workload.daemonSetSpec.updateStrategy }}
+  updateStrategy:
+    {{- toYaml . | nindent 4 }}
+{{- end }}
+  selector:
+    matchLabels:
+      {{- include "grafana-agent.selectorLabels" . | nindent 6 }}
+  template:
+    {{- include "grafana-agent.pod" . | nindent 4 }}
+{{- end }}
diff --git a/charts/grafana-agent/templates/deployment.yaml b/charts/grafana-agent/templates/deployment.yaml
@@ -0,0 +1,25 @@
+{{- if eq .Values.workload.kind "deployment" }}
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "grafana-agent.fullname" . }}
+  namespace: {{ .Release.Namespace }}
+{{- with .Values.workload.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+{{- end }}
+  labels:
+    {{- include "grafana-agent.labels" . | nindent 4 }}
+    {{- .Values.workload.labels | toYaml . | nindent 4 }}
+spec:
+  replicas: {{ .Values.workload.deploymentSpec.replicas }}
+{{- with .Values.workload.deploymentSpec.strategy }}
+  strategy:
+    {{- toYaml . | nindent 4 }}
+{{- end }}
+  selector:
+    matchLabels:
+      {{- include "grafana-agent.selectorLabels" . | nindent 6 }}
+  template:
+    {{- include "grafana-agent.pod" . | nindent 4 }}
+{{- end }}
diff --git a/charts/grafana-agent/templates/service.yaml b/charts/grafana-agent/templates/service.yaml
@@ -0,0 +1,19 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "grafana-agent.fullname" . }}
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "grafana-agent.labels" . | nindent 4 }}
+{{- with .Values.service.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+{{- end }}
+spec:
+  type: {{ .Values.service.type }}
+{{- with .Values.service.ports }}
+  ports:
+    {{- toYaml . | nindent 4 }}
+{{- end }}
+  selector:
+    {{- include "grafana-agent.selectorLabels" . | nindent 4 }}
diff --git a/charts/grafana-agent/templates/serviceaccount.yaml b/charts/grafana-agent/templates/serviceaccount.yaml
@@ -0,0 +1,13 @@
+{{- if .Values.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "grafana-agent.serviceAccountName" . }}
+  namespace: {{ .Release.Namespace }}
+  labels:
+    {{- include "grafana-agent.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+{{- end -}}
diff --git a/charts/grafana-agent/templates/statefulset.yaml b/charts/grafana-agent/templates/statefulset.yaml
@@ -0,0 +1,34 @@
+{{- if eq .Values.workload.kind "statefulSet" }}
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: {{ include "grafana-agent.fullname" . }}
+  namespace: {{ .Release.Namespace }}
+{{- with .Values.workload.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+{{- end }}
+  labels:
+    {{- include "grafana-agent.labels" . | nindent 4 }}
+    {{- .Values.workload.labels | toYaml . | nindent 4 }}
+spec:
+  replicas: {{ .Values.workload.statefulSetSpec.replicas }}
+{{- with .Values.workload.statefulSetSpec.updateStrategy }}
+  updateStrategy:
+    {{- toYaml . | nindent 4 }}
+{{- end }}
+{{- with .Values.workload.statefulSetSpec.podManagementPolicy }}
+  podManagementPolicy:
+    {{- toYaml . | nindent 4 }}
+{{- end }}
+  selector:
+    matchLabels:
+      {{- include "grafana-agent.selectorLabels" . | nindent 6 }}
+  serviceName: {{ include "grafana-agent.fullname" . }}
+  template:
+    {{- include "grafana-agent.pod" . | nindent 4 }}
+{{- with .Values.workload.statefulSetSpec.volumeClaimTemplates }}
+  volumeClaimTemplates:
+    {{- toYaml . | nindent 4 }}
+{{- end }}
+{{- end }}