add knowledge chart

charts/knowledge/.helmignore

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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/

charts/knowledge/Chart.yaml

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+apiVersion: v2
+name: knowledge
+description: A Helm chart for Knowledge API, UI and DB
+
+dependencies:
+  - name: mongodb
+    condition: mongodb.enabled
+    version: 13.15.3
+    repository: https://charts.bitnami.com/bitnami
+
+type: application
+version: 0.5.1
+appVersion: "1.16.0"

charts/knowledge/templates/NOTES.txt

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+TODO

charts/knowledge/templates/_helpers.tpl

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+{{/*
+Expand the name of the chart.
+*/}}
+
+
+{{- define "knowledge.api.name" -}}
+{{- .Values.api.nameOverride | default (printf "%s-api" .Chart.Name ) }}
+{{- end }}
+
+{{- define "knowledge.ui.name" -}}
+{{- .Values.ui.nameOverride | default (printf "%s-ui" .Chart.Name ) }}
+{{- 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 "knowledge.api.fullname" -}}
+{{- if .Values.api.fullnameOverride }}
+{{- .Values.api.fullnameOverride | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- $name := default (printf "%s-api" .Chart.Name ) .Values.api.nameOverride }}
+{{- if contains $name .Release.Name }}
+{{- .Release.Name | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
+{{- end }}
+{{- end }}
+{{- end }}
+
+{{- define "knowledge.ui.fullname" -}}
+{{- if .Values.ui.fullnameOverride }}
+{{- .Values.ui.fullnameOverride | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- $name := default (printf "%s-ui" .Chart.Name ) .Values.ui.nameOverride }}
+{{- if contains $name .Release.Name }}
+{{- .Release.Name | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
+{{- end }}
+{{- end }}
+{{- end }}
+
+
+{{- define "knowledge.mongodb.fullname" -}}
+{{- if .Values.mongodb.fullnameOverride -}}
+{{- .Values.mongodb.fullnameOverride | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- $name := default .Chart.Name .Values.mongodb.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 "knowledge.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{- define "knowledge.api.chart" -}}
+{{- printf "knowledge-api" -}}
+{{- end -}}
+
+{{- define "knowledge.ui.chart" -}}
+{{- printf "knowledge-ui" -}}
+{{- end -}}
+
+{{/*
+Common labels
+*/}}
+
+{{- define "knowledge.api.labels" -}}
+helm.sh/chart: {{ include "knowledge.api.chart" . }}
+{{ include "knowledge.api.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end -}}
+
+{{- define "knowledge.ui.labels" -}}
+helm.sh/chart: {{ include "knowledge.ui.chart" . }}
+{{ include "knowledge.ui.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end -}}
+
+{{/*
+Selector labels
+*/}}
+
+{{- define "knowledge.api.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "knowledge.api.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end -}}
+
+{{- define "knowledge.ui.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "knowledge.ui.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end -}}
+
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "knowledge.api.serviceAccountName" -}}
+{{- if .Values.api.serviceAccount.create }}
+{{- default (include "knowledge.api.fullname" .) .Values.api.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.api.serviceAccount.name }}
+{{- end }}
+{{- end }}
+
+{{- define "knowledge.ui.serviceAccountName" -}}
+{{- if .Values.ui.serviceAccount.create }}
+{{- default (include "knowledge.ui.fullname" .) .Values.ui.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.ui.serviceAccount.name }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create list of mongo host
+*/}}
+{{- define "mongoList" -}}
+{{- $replicaCount := int .Values.mongodb.replicaCount }}
+{{- $portNumber := int .Values.mongodb.service.ports.mongodb }}
+{{- $fullname := include "knowledge.mongodb.fullname" . }}
+{{- $mongoList := list }}
+{{- range $e, $i := until $replicaCount }}
+{{- $mongoList = append $mongoList (printf "%s-%d.%s-headless:%d" $fullname $i $fullname $portNumber) }}
+{{- end }}
+{{- printf "%s"  (join "," $mongoList) -}}
+{{- end }}

charts/knowledge/templates/api/configmap.yaml

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+{{- if .Values.api.enabled }}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ template "knowledge.api.fullname" . }}
+  labels:
+    app: {{ template "knowledge.api.name" . }}
+    chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+data:
+{{- if .Values.api.env }}
+{{- range $key, $value := .Values.api.env }}
+  {{ $key }}: {{ $value | quote }}
+{{- end -}}
+{{- end -}}
+{{- end -}}

charts/knowledge/templates/api/deployment.yaml

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+{{- if .Values.api.enabled -}}
+{{- $mongodbFullname := include "knowledge.mongodb.fullname" . }}
+{{- $secretName := printf "%s-discovery" $mongodbFullname -}}
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "knowledge.api.fullname" . }}
+  labels:
+    {{- include "knowledge.api.labels" . | nindent 4 }}
+spec:
+  {{- if not .Values.api.autoscaling.enabled }}
+  replicas: {{ .Values.api.replicaCount }}
+  {{- end }}
+  selector:
+    matchLabels:
+      {{- include "knowledge.api.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      annotations:
+        checksum/config: {{ include (print $.Template.BasePath "/api/configmap.yaml") . | sha256sum }}
+      labels:
+        {{- include "knowledge.api.selectorLabels" . | nindent 8 }}
+    spec:
+      {{- with .Values.api.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      serviceAccountName: {{ include "knowledge.api.serviceAccountName" . }}
+      securityContext:
+        {{- toYaml .Values.api.podSecurityContext | nindent 8 }}
+      containers:
+        - name: {{ .Chart.Name }}
+          securityContext:
+            {{- toYaml .Values.api.securityContext | nindent 12 }}
+          image: "{{ .Values.api.image.repository }}:{{ .Values.api.image.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.api.image.pullPolicy }}
+          envFrom:
+            - configMapRef:
+                name: {{ template "knowledge.api.fullname" . }}
+          env:
+            - name: MONGODB_URI
+              valueFrom:
+                secretKeyRef:
+                  name: {{$secretName}}
+                  key: mongodb-uri
+            - name: MONGODB_DATABASE
+              valueFrom:
+                secretKeyRef:
+                  name: {{$secretName}}
+                  key: mongodb-database
+          ports:
+            - name: http
+              containerPort: 8080
+              protocol: TCP
+          livenessProbe:
+            failureThreshold: 3
+            httpGet:
+              path: /api/healthcheck
+              port: http
+              scheme: HTTP
+            periodSeconds: 10
+            successThreshold: 1
+            timeoutSeconds: 2
+          readinessProbe:
+            failureThreshold: 3
+            httpGet:
+              path: /api/healthcheck
+              port: http
+              scheme: HTTP
+            periodSeconds: 10
+            successThreshold: 1
+            timeoutSeconds: 5
+          resources:
+            {{- toYaml .Values.api.resources | nindent 12 }}
+      {{- with .Values.api.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.api.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.api.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+{{- end -}}

charts/knowledge/templates/api/hpa.yaml

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+{{- if and .Values.api.autoscaling.enabled .Values.api.enabled}}
+apiVersion: autoscaling/v2beta1
+kind: HorizontalPodAutoscaler
+metadata:
+  name: {{ include "knowledge.api.fullname" . }}
+  labels:
+    {{- include "knowledge.api.labels" . | nindent 4 }}
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: {{ include "knowledge.api.fullname" . }}
+  minReplicas: {{ .Values.api.autoscaling.minReplicas }}
+  maxReplicas: {{ .Values.api.autoscaling.maxReplicas }}
+  metrics:
+    {{- if .Values.api.autoscaling.targetCPUUtilizationPercentage }}
+    - type: Resource
+      resource:
+        name: cpu
+        targetAverageUtilization: {{ .Values.api.autoscaling.targetCPUUtilizationPercentage }}
+    {{- end }}
+    {{- if .Values.api.autoscaling.targetMemoryUtilizationPercentage }}
+    - type: Resource
+      resource:
+        name: memory
+        targetAverageUtilization: {{ .Values.api.autoscaling.targetMemoryUtilizationPercentage }}
+    {{- end }}
+{{- end }}

charts/knowledge/templates/api/ingress.yaml

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+{{- if and .Values.api.enabled .Values.api.ingress.enabled -}}
+{{- $fullNameApi := include "knowledge.api.fullname" . -}}
+{{- $apiSvcPort := .Values.api.service.port -}}
+{{- if and .Values.api.ingress.className (not (semverCompare ">=1.18-0" .Capabilities.KubeVersion.GitVersion)) }}
+  {{- if not (hasKey .Values.api.ingress.annotations "kubernetes.io/ingress.class") }}
+  {{- $_ := set .Values.api.ingress.annotations "kubernetes.io/ingress.class" .Values.api.ingress.className}}
+  {{- end }}
+{{- end }}
+{{- if semverCompare ">=1.19-0" .Capabilities.KubeVersion.GitVersion -}}
+apiVersion: networking.k8s.io/v1
+{{- else if semverCompare ">=1.14-0" .Capabilities.KubeVersion.GitVersion -}}
+apiVersion: networking.k8s.io/v1beta1
+{{- else -}}
+apiVersion: extensions/v1beta1
+{{- end }}
+kind: Ingress
+metadata:
+  name: {{ $fullNameApi }}
+  labels:
+    {{- include "knowledge.api.labels" . | nindent 4 }}
+  {{- with .Values.api.ingress.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  {{- if and .Values.api.ingress.className (semverCompare ">=1.18-0" .Capabilities.KubeVersion.GitVersion) }}
+  ingressClassName: {{ .Values.api.ingress.className }}
+  {{- end }}
+  {{- if .Values.api.ingress.tls }}
+  tls:
+    {{- range .Values.api.ingress.tls }}
+    - hosts:
+        {{- range .hosts }}
+        - {{ . | quote }}
+        {{- end }}
+      secretName: {{ .secretName }}
+    {{- end }}
+  {{- end }}
+  rules:
+    {{- range .Values.api.ingress.hosts }}
+    - host: {{ .host | quote }}
+      http:
+        paths:
+          {{- range .paths }}
+          - path: {{ .path }}
+            {{- if and .pathType (semverCompare ">=1.18-0" $.Capabilities.KubeVersion.GitVersion) }}
+            pathType: {{ .pathType }}
+            {{- end }}
+            backend:
+              {{- if semverCompare ">=1.19-0" $.Capabilities.KubeVersion.GitVersion }}
+              service:
+                name: {{ $fullNameApi }}
+                port:
+                  number: {{ $apiSvcPort }}
+              {{- else }}
+              serviceName: {{ $fullNameApi }}
+              servicePort: {{ $apiSvcPort }}
+              {{- end }}
+          {{- end }}
+    {{- end }}
+{{- end }}