adding chart for prometheus-couchdb-exporters (helm#7494)

* adding chart for prometheus-couchdb-exporters Signed-off-by: gkarthiks <[email protected]> * Upgrading the deployment api version from vibeta2 to v1 Signed-off-by: gkarthiks <[email protected]> * adding rbac Signed-off-by: gkarthiks <[email protected]>
agolo · Oct 4, 2018 · b517f4a · b517f4a
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diff --git a/stable/prometheus-couchdb-exporter/.helmignore b/stable/prometheus-couchdb-exporter/.helmignore
@@ -0,0 +1,21 @@
+# 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
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
diff --git a/stable/prometheus-couchdb-exporter/Chart.yaml b/stable/prometheus-couchdb-exporter/Chart.yaml
@@ -0,0 +1,14 @@
+apiVersion: v1
+appVersion: "1.0"
+description: A Helm chart to export the metrics from couchdb in Prometheus format.
+name: prometheus-couchdb-exporter
+home: https://github.com/gesellix/couchdb-prometheus-exporter
+version: 0.1.0
+keywords:
+- couchdb-exporter
+sources:
+  - https://github.com/gesellix/couchdb-prometheus-exporter
+maintainers:
+- name: gkarthiks
+  email: [email protected]
+engine: gotpl
diff --git a/stable/prometheus-couchdb-exporter/README.md b/stable/prometheus-couchdb-exporter/README.md
@@ -0,0 +1,78 @@
+# prometheus-couchdb-exporter
+
+[couchdb-prometheus-exporter](https://github.com/gesellix/couchdb-prometheus-exporter) is a Prometheus exporter for CouchDB metrics.
+
+## TL;DR;
+
+```bash
+$ helm install stable/prometheus-couchdb-exporter
+```
+
+## Introduction
+
+This chart bootstraps a [couchdb-exporter](https://github.com/gesellix/couchdb-prometheus-exporter) deployment on a [Kubernetes](http://kubernetes.io) cluster using the [Helm](https://helm.sh) package manager.
+
+## Prerequisites
+
+- Kubernetes 1.8+ with Beta APIs enabled
+
+## Installing the Chart
+
+To install the chart with the release name `my-release`:
+
+```bash
+$ helm install --name my-release stable/prometheus-couchdb-exporter
+```
+
+The command deploys prometheus-couchdb-exporter on the Kubernetes cluster in the default configuration.
+
+## Uninstalling the Chart
+
+To uninstall/delete the `my-release` deployment:
+
+```bash
+$ helm delete my-release
+```
+
+The command removes all the Kubernetes components associated with the chart and deletes the release.
+
+## Configuration
+
+The following table lists the configurable parameters and their default values.
+
+| Parameter              | Description                                         | Default                                 |
+| ---------------------- | --------------------------------------------------- | --------------------------------------- |
+| `replicaCount`         | desired number of prometheus-couchdb-exporter pods  | `1`                                     |
+| `image.repository`     | prometheus-couchdb-exporter image repository        | `gesellix/couchdb-prometheus-exporter`  |
+| `image.tag`            | prometheus-couchdb-exporter image tag               | `16`                                    |
+| `image.pullPolicy`     | image pull policy                                   | `IfNotPresent`                          |
+| `service.type`         | desired service type                                | `ClusterIP`                             |
+| `service.port`         | service external port                               | `9984`                                  |
+| `ingress.enabled`      | enable ingress controller resource                  | `false`                                 |
+| `ingress.annotations`  | annotations for the host's ingress records          | `false`                                 |
+| `ingress.path`         | path for the ingress route                          | `/`                                     |
+| `ingress.hosts`        | list of host address for ingress creation           |                                         |
+| `ingress.tls`          | utilize TLS backend in ingress                      |                                         |
+| `resources`            | cpu/memory resource requests/limits                 | {}                                      |
+| `nodeSelector`         | node labels for pod assignment                      | {}                                      |
+| `tolerations`          | tolerations for pod assignment                      | {}                                      |
+| `affinity`             | affinity settings for proxy pod assignments         | {}                                      |
+| `couchdb.uri`          | address of the couchdb                              | `http://couchdb.default.svc:5984`       |
+| `couchdb.databases`    | comma separated databases to monitor                | `_all_dbs`                              |
+
+
+For more information please refer to the [couchdb-prometheus-exporter]https://github.com/gesellix/couchdb-prometheus-exporter) documentation.
+
+Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`. For example,
+
+```bash
+$ helm install --name my-release \
+  --set "couchdb.uri=http://mycouchdb:5984" \
+    stable/prometheus-couchdb-exporter
+```
+
+Alternatively, a YAML file that specifies the values for the parameters can be provided while installing the chart. For example,
+
+```bash
+$ helm install --name my-release -f values.yaml stable/prometheus-couchdb-exporter
+```
diff --git a/stable/prometheus-couchdb-exporter/templates/NOTES.txt b/stable/prometheus-couchdb-exporter/templates/NOTES.txt
@@ -0,0 +1,19 @@
+1. Get the application URL by running these commands:
+{{- if .Values.ingress.enabled }}
+{{- range .Values.ingress.hosts }}
+  http{{ if $.Values.ingress.tls }}s{{ end }}://{{ . }}{{ $.Values.ingress.path }}
+{{- end }}
+{{- else if contains "NodePort" .Values.service.type }}
+  export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ template "prometheus-couchdb-exporter.fullname" . }})
+  export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
+  echo http://$NODE_IP:$NODE_PORT
+{{- else if contains "LoadBalancer" .Values.service.type }}
+     NOTE: It may take a few minutes for the LoadBalancer IP to be available.
+           You can watch the status of by running 'kubectl get svc -w {{ template "prometheus-couchdb-exporter.fullname" . }}'
+  export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ template "prometheus-couchdb-exporter.fullname" . }} -o jsonpath='{.status.loadBalancer.ingress[0].ip}')
+  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={{ template "prometheus-couchdb-exporter.name" . }},release={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
+  echo "Visit http://127.0.0.1:8080 to use your application"
+  kubectl port-forward $POD_NAME 8080:80
+{{- end }}
diff --git a/stable/prometheus-couchdb-exporter/templates/_helpers.tpl b/stable/prometheus-couchdb-exporter/templates/_helpers.tpl
@@ -0,0 +1,43 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "prometheus-couchdb-exporter.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 "prometheus-couchdb-exporter.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 "prometheus-couchdb-exporter.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "prometheus-couchdb-exporter.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create -}}
+    {{ default (include "prometheus-couchdb-exporter.fullname" .) .Values.serviceAccount.name }}
+{{- else -}}
+    {{ default "default" .Values.serviceAccount.name }}
+{{- end -}}
+{{- end -}}
diff --git a/stable/prometheus-couchdb-exporter/templates/deployment.yaml b/stable/prometheus-couchdb-exporter/templates/deployment.yaml
@@ -0,0 +1,58 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ template "prometheus-couchdb-exporter.fullname" . }}
+  labels:
+    app: {{ template "prometheus-couchdb-exporter.name" . }}
+    chart: {{ template "prometheus-couchdb-exporter.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      app: {{ template "prometheus-couchdb-exporter.name" . }}
+      release: {{ .Release.Name }}
+  template:
+    metadata:
+      labels:
+        app: {{ template "prometheus-couchdb-exporter.name" . }}
+        release: {{ .Release.Name }}
+    spec:
+      serviceAccountName: {{ template "prometheus-couchdb-exporter.serviceAccountName" . }}
+      containers:
+        - name: {{ .Chart.Name }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          command: ["/couchdb-prometheus-exporter",
+                    "-telemetry.address=0.0.0.0:9984",
+                    "-logtostderr",
+                    "-couchdb.uri={{ .Values.couchdb.uri }}",
+                    "-databases={{ .Values.couchdb.databases }}"]
+          ports:
+            - name: http
+              containerPort: 9984
+          livenessProbe:
+            httpGet:
+              path: /
+              port: http
+              initialDelaySeconds: 60
+          readinessProbe:
+            httpGet:
+              path: /
+              port: http
+              initialDelaySeconds: 60
+          resources:
+{{ toYaml .Values.resources | indent 12 }}
+    {{- with .Values.nodeSelector }}
+      nodeSelector:
+{{ toYaml . | indent 8 }}
+    {{- end }}
+    {{- with .Values.affinity }}
+      affinity:
+{{ toYaml . | indent 8 }}
+    {{- end }}
+    {{- with .Values.tolerations }}
+      tolerations:
+{{ toYaml . | indent 8 }}
+    {{- end }}
diff --git a/stable/prometheus-couchdb-exporter/templates/ingress.yaml b/stable/prometheus-couchdb-exporter/templates/ingress.yaml
@@ -0,0 +1,38 @@
+{{- if .Values.ingress.enabled -}}
+{{- $fullName := include "prometheus-couchdb-exporter.fullname" . -}}
+{{- $ingressPath := .Values.ingress.path -}}
+apiVersion: extensions/v1beta1
+kind: Ingress
+metadata:
+  name: {{ $fullName }}
+  labels:
+    app: {{ template "prometheus-couchdb-exporter.name" . }}
+    chart: {{ template "prometheus-couchdb-exporter.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+{{- with .Values.ingress.annotations }}
+  annotations:
+{{ toYaml . | indent 4 }}
+{{- end }}
+spec:
+{{- if .Values.ingress.tls }}
+  tls:
+  {{- range .Values.ingress.tls }}
+    - hosts:
+      {{- range .hosts }}
+        - {{ . }}
+      {{- end }}
+      secretName: {{ .secretName }}
+  {{- end }}
+{{- end }}
+  rules:
+  {{- range .Values.ingress.hosts }}
+    - host: {{ . }}
+      http:
+        paths:
+          - path: {{ $ingressPath }}
+            backend:
+              serviceName: {{ $fullName }}
+              servicePort: http
+  {{- end }}
+{{- end }}
diff --git a/stable/prometheus-couchdb-exporter/templates/podsecuritypolicy.yaml b/stable/prometheus-couchdb-exporter/templates/podsecuritypolicy.yaml
@@ -0,0 +1,39 @@
+{{- if .Values.rbac.pspEnabled }}
+apiVersion: extensions/v1beta1
+kind: PodSecurityPolicy
+metadata:
+  name: {{ template "prometheus-couchdb-exporter.fullname" . }}
+  labels:
+    app: {{ template "prometheus-couchdb-exporter.name" . }}
+    chart: {{ template "prometheus-couchdb-exporter.chart" . }}
+    heritage: {{ .Release.Service }}
+    release: {{ .Release.Name }}
+  annotations:
+    seccomp.security.alpha.kubernetes.io/allowedProfileNames: 'docker/default'
+    apparmor.security.beta.kubernetes.io/allowedProfileNames: 'runtime/default'
+    seccomp.security.alpha.kubernetes.io/defaultProfileName:  'docker/default'
+    apparmor.security.beta.kubernetes.io/defaultProfileName:  'runtime/default'
+spec:
+  privileged: false
+  allowPrivilegeEscalation: false
+  requiredDropCapabilities:
+    - ALL
+  volumes:
+    - 'configMap'
+    - 'emptyDir'
+    - 'projected'
+    - 'secret'
+    - 'downwardAPI'
+  hostNetwork: false
+  hostIPC: false
+  hostPID: false
+  runAsUser:
+    rule: 'RunAsAny'
+  seLinux:
+    rule: 'RunAsAny'
+  supplementalGroups:
+    rule: 'RunAsAny'
+  fsGroup:
+    rule: 'RunAsAny'
+  readOnlyRootFilesystem: false
+{{- end }}
diff --git a/stable/prometheus-couchdb-exporter/templates/role.yaml b/stable/prometheus-couchdb-exporter/templates/role.yaml
@@ -0,0 +1,18 @@
+{{- if .Values.rbac.create }}
+apiVersion: rbac.authorization.k8s.io/v1beta1
+kind: Role
+metadata:
+  name: {{ template "prometheus-couchdb-exporter.fullname" . }}
+  labels:
+    app: {{ template "prometheus-couchdb-exporter.name" . }}
+    chart: {{ template "prometheus-couchdb-exporter.chart" . }}
+    heritage: {{ .Release.Service }}
+    release: {{ .Release.Name }}
+{{- if .Values.rbac.pspEnabled }}
+rules:
+- apiGroups:      ['extensions']
+  resources:      ['podsecuritypolicies']
+  verbs:          ['use']
+  resourceNames:  [{{ template "prometheus-couchdb-exporter.fullname" . }}]
+{{- end }}
+{{- end }}
diff --git a/stable/prometheus-couchdb-exporter/templates/rolebinding.yaml b/stable/prometheus-couchdb-exporter/templates/rolebinding.yaml
@@ -0,0 +1,18 @@
+{{- if .Values.rbac.create -}}
+apiVersion: rbac.authorization.k8s.io/v1beta1
+kind: RoleBinding
+metadata:
+  name: {{ template "prometheus-couchdb-exporter.fullname" . }}
+  labels:
+    app: {{ template "prometheus-couchdb-exporter.name" . }}
+    chart: {{ template "prometheus-couchdb-exporter.chart" . }}
+    heritage: {{ .Release.Service }}
+    release: {{ .Release.Name }}
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: {{ template "prometheus-couchdb-exporter.fullname" . }}
+subjects:
+- kind: ServiceAccount
+  name: {{ template "prometheus-couchdb-exporter.serviceAccountName" . }}
+{{- end -}}
diff --git a/stable/prometheus-couchdb-exporter/templates/service.yaml b/stable/prometheus-couchdb-exporter/templates/service.yaml
@@ -0,0 +1,19 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ template "prometheus-couchdb-exporter.fullname" . }}
+  labels:
+    app: {{ template "prometheus-couchdb-exporter.name" . }}
+    chart: {{ template "prometheus-couchdb-exporter.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+spec:
+  type: {{ .Values.service.type }}
+  ports:
+    - port: {{ .Values.service.port }}
+      targetPort: http
+      protocol: TCP
+      name: http
+  selector:
+    app: {{ template "prometheus-couchdb-exporter.name" . }}
+    release: {{ .Release.Name }}
diff --git a/stable/prometheus-couchdb-exporter/templates/serviceaccount.yaml b/stable/prometheus-couchdb-exporter/templates/serviceaccount.yaml
@@ -0,0 +1,11 @@
+{{- if .Values.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ template "prometheus-couchdb-exporter.serviceAccountName" . }}
+  labels:
+    app: {{ template "prometheus-couchdb-exporter.name" . }}
+    chart: {{ template "prometheus-couchdb-exporter.chart" . }}
+    release: "{{ .Release.Name }}"
+    heritage: "{{ .Release.Service }}"
+{{- end -}}