Merge pull request #105 from observIQ/chart/influxdb

Chart: InfluxDB

.github/workflows/ci.yaml

@@ -27,6 +27,7 @@ jobs:
           - "aerospike"
           - "apache-activemq"
           - "presto"
+          - "influxdb"
 
     runs-on: ubuntu-latest
     steps:

charts/influxdb/.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

charts/influxdb/Chart.yaml

@@ -0,0 +1,6 @@
+apiVersion: v2
+appVersion: 2.3.0
+name: influxdb2
+description: A customized InfluxDB v2 chart for development
+type: application
+version: 1.0.0

charts/influxdb/README.md

@@ -0,0 +1,9 @@
+# InfluxDB v2 Helm chart
+
+[InfluxDB](https://github.com/influxdata/influxdb) is an open source time series
+database with no external dependencies. It's useful for recording metrics,
+events, and performing analytics.
+
+This is a copy of the v2 chart for InfluxDB that's slightly customized for development use.
+
+Persistence is disabled. Password and token are set to fixed values.

charts/influxdb/templates/NOTES.txt

@@ -0,0 +1,17 @@
+InfluxDB 2 is deployed as a StatefulSet on your cluster.
+
+You can access it by using the service name: {{ template "influxdb.fullname" . }}
+
+To retrieve the password for the '{{ .Values.adminUser.user}}' user:
+
+{{- if .Values.adminUser.existingSecret }}
+
+  echo $(kubectl get secret {{ .Values.adminUser.existingSecret }} -o "jsonpath={.data['admin-password']}" --namespace {{ .Release.Namespace }} | base64 --decode)
+
+{{- else }}
+
+  echo $(kubectl get secret {{ include "influxdb.fullname" . }}-auth -o "jsonpath={.data['admin-password']}" --namespace {{ .Release.Namespace }} | base64 --decode)
+
+{{- end }}
+
+Note: with enabled persistence, admin password is only set once during the initial deployment. The password is not changed when InfluxDB 2 is re-deployed with different password.

charts/influxdb/templates/_helpers.tpl

@@ -0,0 +1,64 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "influxdb.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 "influxdb.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 "influxdb.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Common labels
+*/}}
+{{- define "influxdb.labels" -}}
+app.kubernetes.io/name: {{ include "influxdb.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+helm.sh/chart: {{ include "influxdb.chart" . }}
+{{- end -}}
+
+{{/*
+Selector labels
+*/}}
+{{- define "influxdb.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "influxdb.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end -}}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "influxdb.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create -}}
+    {{ default (include "influxdb.fullname" .) .Values.serviceAccount.name }}
+{{- else -}}
+    {{ default "default" .Values.serviceAccount.name }}
+{{- end -}}
+{{- end -}}

charts/influxdb/templates/ingress.yaml

@@ -0,0 +1,44 @@
+{{- if .Values.ingress.enabled -}}
+{{- if .Capabilities.APIVersions.Has "networking.k8s.io/v1/Ingress" }}
+apiVersion: networking.k8s.io/v1
+{{- else }}
+apiVersion: networking.k8s.io/v1beta1
+{{- end }}
+kind: Ingress
+metadata:
+  name: {{ include "influxdb.fullname" . }}
+  labels:
+    {{- include "influxdb.labels" . | nindent 4 }}
+  annotations:
+{{ toYaml .Values.ingress.annotations | indent 4 }}
+spec:
+{{- if .Values.ingress.tls }}
+  tls:
+    - hosts:
+      - {{ .Values.ingress.hostname | quote }}
+      {{- if .Values.ingress.secretName }}
+      secretName: {{ .Values.ingress.secretName }}
+      {{- end -}}
+{{- end }}
+{{- if .Values.ingress.className }}
+  ingressClassName: {{ .Values.ingress.className }}
+{{- end }}
+  rules:
+  - host: {{ .Values.ingress.hostname }}
+    http:
+      paths:
+      - path: {{ .Values.ingress.path }}
+{{- if .Capabilities.APIVersions.Has "networking.k8s.io/v1/Ingress" }}
+        pathType: Prefix
+{{- end }}
+        backend:
+{{- if .Capabilities.APIVersions.Has "networking.k8s.io/v1/Ingress" }}
+          service:
+            name: {{ include "influxdb.fullname" . }}
+            port:
+              name: {{ .Values.service.portName }}
+{{- else }}
+          serviceName: {{ include "influxdb.fullname" . }}
+          servicePort: {{ .Values.service.portName }}
+{{- end }}
+{{- end -}}

charts/influxdb/templates/init-config.yaml

@@ -0,0 +1,10 @@
+{{- if .Values.initScripts.enabled -}}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ include "influxdb.fullname" . }}-init
+  labels:
+    {{- include "influxdb.labels" . | nindent 4 }}
+data:
+{{ toYaml .Values.initScripts.scripts | indent 2 }}
+{{- end -}}

charts/influxdb/templates/pdb.yaml

@@ -0,0 +1,22 @@
+{{- if .Values.pdb.create }}
+{{- if .Capabilities.APIVersions.Has "policy/v1" }}
+apiVersion: policy/v1
+{{- else }}
+apiVersion: policy/v1beta1
+{{- end }}
+kind: PodDisruptionBudget
+metadata:
+  name: {{ template "influxdb.fullname" . }}
+  labels:
+  {{- include "influxdb.labels" . | nindent 4 }}
+spec:
+  {{- if .Values.pdb.minAvailable }}
+  minAvailable: {{ .Values.pdb.minAvailable }}
+  {{- end }}
+  {{- if .Values.pdb.maxUnavailable }}
+  maxUnavailable: {{ .Values.pdb.maxUnavailable }}
+  {{- end }}
+  selector:
+    matchLabels:
+  {{- include "influxdb.selectorLabels" . | nindent 6 }}
+  {{- end }}

charts/influxdb/templates/persistent-volume-claim.yaml

@@ -0,0 +1,23 @@
+{{- if and (.Values.persistence.enabled) (not .Values.persistence.useExisting) }}
+kind: PersistentVolumeClaim
+apiVersion: v1
+metadata:
+  name: "{{- if not (empty .Values.persistence.name) }}{{ .Values.persistence.name }}{{- else }}{{ template "influxdb.fullname" . }}{{- end }}"
+  labels:
+    {{- include "influxdb.labels" . | nindent 4 }}
+  annotations:
+    helm.sh/resource-policy: "keep"
+spec:
+  accessModes:
+    - {{ .Values.persistence.accessMode | quote }}
+  resources:
+    requests:
+      storage: {{ .Values.persistence.size | quote }}
+{{- if .Values.persistence.storageClass }}
+{{- if (eq "-" .Values.persistence.storageClass) }}
+  storageClassName: ""
+{{- else }}
+  storageClassName: "{{ .Values.persistence.storageClass }}"
+{{- end }}
+{{- end }}
+{{- end }}

charts/influxdb/templates/secret.yaml

@@ -0,0 +1,27 @@
+{{- if not (.Values.adminUser.existingSecret) -}}
+apiVersion: v1
+kind: Secret
+metadata:
+  labels:
+    {{- include "influxdb.labels" . | nindent 4 }}
+  {{- $name := printf "%s-auth" (include "influxdb.fullname" .) }}
+  name: {{ $name }}
+data:
+  {{- $previous := lookup "v1" "Secret" .Release.Namespace $name }}
+
+  {{- if $previous }}
+  admin-token: {{ index $previous.data "admin-token" }}
+  {{- else if .Values.adminUser.token }}
+  admin-token: {{ .Values.adminUser.token  | b64enc | quote }}
+  {{- else }}
+  admin-token: {{ randAlphaNum 32 | b64enc | quote }}
+  {{- end }}
+
+  {{- if $previous }}
+  admin-password: {{ index $previous.data "admin-password" }}
+  {{- else if .Values.adminUser.password }}
+  admin-password: {{ .Values.adminUser.password | b64enc | quote }}
+  {{- else }}
+  admin-password: {{ randAlphaNum 32 | b64enc | quote }}
+  {{- end }}
+{{- end -}}

charts/influxdb/templates/service.yaml

@@ -0,0 +1,40 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ template "influxdb.fullname" . }}
+  labels: {{- include "influxdb.labels" . | nindent 4 }}
+{{- with .Values.service.annotations }}
+  annotations:
+{{ toYaml . | indent 4 }}
+{{- end }}
+spec:
+{{- if (or (eq .Values.service.type "ClusterIP") (empty .Values.service.type)) }}
+  type: ClusterIP
+  {{- if .Values.service.clusterIP }}
+  clusterIP: {{ .Values.service.clusterIP }}
+  {{end}}
+{{- else if eq .Values.service.type "LoadBalancer" }}
+  type: {{ .Values.service.type }}
+  {{- if .Values.service.loadBalancerIP }}
+  loadBalancerIP: {{ .Values.service.loadBalancerIP }}
+  {{- end }}
+  {{- if .Values.service.loadBalancerSourceRanges }}
+  loadBalancerSourceRanges:
+{{ toYaml .Values.service.loadBalancerSourceRanges | indent 4 }}
+  {{- end -}}
+{{- else }}
+  type: {{ .Values.service.type }}
+{{- end }}
+  ports:
+    - name: {{ .Values.service.portName }}
+      port: {{ .Values.service.port }}
+      protocol: TCP
+      targetPort: {{ .Values.service.targetPort }}
+{{- if (and (eq .Values.service.type "NodePort") (not (empty .Values.service.nodePort))) }}
+      nodePort: {{ .Values.service.nodePort }}
+{{- end }}
+  {{- if .Values.extraExposePorts }}
+  {{- tpl (toYaml .Values.extraExposePorts) . | indent 4 }}
+  {{- end }}
+  selector:
+    {{- include "influxdb.selectorLabels" . | nindent 4 }}

charts/influxdb/templates/serviceaccount.yaml

@@ -0,0 +1,12 @@
+{{- if .Values.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "influxdb.serviceAccountName" . }}
+  labels:
+    {{- include "influxdb.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+{{- end -}}