new chart for knowledge base (#12)

* basic kb chart

* cleaned up ingress.yaml

* added values-test.yaml to template each file

charts/knowledge-base/Chart.yaml

@@ -0,0 +1,6 @@
+apiVersion: v2
+name: knowledge-base
+description: Knowledge Base frontend and API/backend
+type: application
+version: 0.1.0
+appVersion: "0.0.1"

charts/knowledge-base/templates/_helpers.tpl

@@ -0,0 +1,51 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "knowledge-base.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 "knowledge-base.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 "knowledge-base.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "knowledge-base.labels" -}}
+helm.sh/chart: {{ include "knowledge-base.chart" . }}
+{{ include "knowledge-base.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "knowledge-base.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "knowledge-base.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}

charts/knowledge-base/templates/config.yaml

@@ -0,0 +1,24 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ include "knowledge-base.fullname" . }}
+  labels:
+    {{- include "knowledge-base.labels" . | nindent 4 }}
+data:
+  application.yml: |-
+    sophora:
+      client:
+        server-connection:
+          urls:
+          {{- range .Values.api.sophora.connection.urls }}
+            - {{ . | quote }}
+          {{- end }}
+        tool-info:
+          name: "knowledge-base-backend"
+    server:
+      port: 8181
+
+    spring:
+      groovy:
+        template:
+          check-template-location: false

charts/knowledge-base/templates/deployment_api.yaml

@@ -0,0 +1,76 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: "{{ include "knowledge-base.fullname" . }}-api"
+  labels:
+    {{- include "knowledge-base.labels" . | nindent 4 }}
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      {{- include "knowledge-base.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      annotations:
+        "cluster-autoscaler.kubernetes.io/safe-to-evict": "true"
+        checksum/config: {{ include (print $.Template.BasePath "/config.yaml") . | sha256sum }}
+        {{- with .Values.podAnnotations }}
+        {{- toYaml . | nindent 8 }}
+        {{- end }}
+      labels:
+        {{- include "knowledge-base.selectorLabels" . | nindent 8 }}
+    spec:
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      restartPolicy: Always
+      containers:
+        - name: "{{ .Chart.Name }}-api"
+          image: "{{ .Values.api.image.repository }}:{{ .Values.api.image.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.api.image.pullPolicy }}
+          volumeMounts:
+            - name: config
+              mountPath: "/workspace/application.yml"
+              subPath: "application.yml"
+          env:
+            - name: sophora.client.server-connection.username
+              valueFrom: 
+                secretKeyRef:
+                  key: {{ .Values.api.sophora.authentication.secret.usernameKey }}
+                  name: {{ required "A valid secret name must be provided in .Values.api.sophora.authentication.secret.name" .Values.api.sophora.authentication.secret.name | quote }}
+            - name: sophora.client.server-connection.password
+              valueFrom: 
+                secretKeyRef:
+                  key: {{ .Values.api.sophora.authentication.secret.passwordKey }}
+                  name: {{ required "A valid secret name must be provided in .Values.api.sophora.authentication.secret.name" .Values.api.sophora.authentication.secret.name | quote }}
+          ports:
+            - name: http
+              containerPort: 8181
+              protocol: TCP
+          livenessProbe:
+            httpGet:
+              path: /
+              port: http
+          readinessProbe:
+            httpGet:
+              path: /
+              port: http
+          resources:
+            {{- toYaml .Values.api.container.resources | nindent 12 }}
+      volumes:
+        - name: config
+          configMap:
+            name: {{ include "knowledge-base.fullname" . }}
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}

charts/knowledge-base/templates/deployment_frontend.yaml

@@ -0,0 +1,63 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: "{{ include "knowledge-base.fullname" . }}-frontend"
+  labels:
+    {{- include "knowledge-base.labels" . | nindent 4 }}
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      {{- include "knowledge-base.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      annotations:
+        "cluster-autoscaler.kubernetes.io/safe-to-evict": "true"
+        {{- with .Values.podAnnotations }}
+        {{- toYaml . | nindent 8 }}
+        {{- end }}
+      labels:
+        {{- include "knowledge-base.selectorLabels" . | nindent 8 }}
+    spec:
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      restartPolicy: Always
+      containers:
+        - name: "{{ .Chart.Name }}-frontend"
+          image: "{{ .Values.frontend.image.repository }}:{{ .Values.frontend.image.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.frontend.image.pullPolicy }}
+          env:
+            - name: API_ADDRESS
+              value: {{ .Values.frontend.apiBaseAddress }}
+          ports:
+            - name: http
+              containerPort: 80
+              protocol: TCP
+          livenessProbe:
+            httpGet:
+              path: /
+              port: http
+          readinessProbe:
+            httpGet:
+              path: /
+              port: http
+          resources:
+            {{- toYaml .Values.frontend.container.resources | nindent 12 }}
+      volumes:
+        - name: config
+          configMap:
+            name: {{ include "knowledge-base.fullname" . }}
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}

charts/knowledge-base/templates/ingress.yaml

@@ -0,0 +1,41 @@
+{{- if .Values.ingress.enabled -}}
+{{- $fullName := include "knowledge-base.fullname" . -}}
+{{- $svcPort := .Values.service.port -}}
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: {{ $fullName }}
+  labels:
+    {{- include "knowledge-base.labels" . | nindent 4 }}
+  {{- with .Values.ingress.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  {{- if .Values.ingress.ingressClassName }}
+  ingressClassName: {{ .Values.ingress.ingressClassName }}
+  {{- end -}}
+  {{- if .Values.ingress.tls }}
+  tls:
+    {{- range .Values.ingress.tls }}
+    - hosts:
+        {{- range .hosts }}
+        - {{ . | quote }}
+        {{- end }}
+      secretName: {{ .secretName }}
+    {{- end }}
+  {{- end }}
+  rules:
+    {{- range .Values.ingress.hosts }}
+    - host: {{ .host | quote }}
+      http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: {{ $fullName }}
+                port: 
+                  number: {{ $svcPort }}
+    {{- end }}
+  {{- end }}

charts/knowledge-base/templates/service.yaml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "knowledge-base.fullname" . }}
+  labels:
+    {{- include "knowledge-base.labels" . | nindent 4 }}
+spec:
+  type: {{ .Values.service.type }}
+  ports:
+    - port: {{ .Values.service.port }}
+      targetPort: http
+      protocol: TCP
+      name: http
+  selector:
+    {{- include "knowledge-base.selectorLabels" . | nindent 4 }}

charts/knowledge-base/values-test.yaml

@@ -0,0 +1,68 @@
+frontend:
+  image:
+    repository: docker.subshell.com/labday/knowledge-base/kb-frontend
+    pullPolicy: Always
+    tag: "1.0.0"
+  container:
+    resources:
+      requests:
+        cpu: 999m
+        memory: 123Mi
+      limits:
+        cpu: 888m
+        memory: 4321Mi
+  apiBaseAddress: "test-api.address"
+
+api:
+  image:
+    repository: docker.subshell.com/labday/knowledge-base/kb-api
+    pullPolicy: Always
+    tag: "1.0.0"
+  container:
+    resources:
+      requests:
+        cpu: 222m
+        memory: 42Mi
+      limits:
+        cpu: 333m
+        memory: 1337Mi
+  sophora:
+    connection:
+      urls:
+        - "http://sophora-server1"
+        - "http://sophora-server2"
+    authentication:
+      secret:
+        name: "knowledge-base-sophora-credentials"
+        usernameKey: "sophora-user"
+        passwordKey: "sophora-password"
+
+imagePullSecrets: []
+nameOverride: "testNameOverride"
+fullnameOverride: "fullTestNameOverride"
+
+podAnnotations:
+  my/test/annotation: "foo"
+  my/other/annotation: "bar"
+
+service:
+  type: ClusterIP
+  port: 80
+
+ingress:
+  enabled: true
+  annotations:
+    kubernetes.io/ingress.class: nginx
+    # kubernetes.io/tls-acme: "true"
+  hosts:
+    - host: frontend.knowledge-base.test
+  tls: []
+  #  - secretName: chart-example-tls
+  #    hosts:
+  #      - chart-example.local
+
+nodeSelector: {}
+
+tolerations: []
+
+affinity: {}