add first version of ui helm chart (#795)

* add first version of ui helm chart
* add postgres versions 12 and 9.5

charts/postgres-operator-ui/.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
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

charts/postgres-operator-ui/Chart.yaml

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+apiVersion: v1
+name: postgres-operator-ui
+version: 0.1.0
+appVersion: 1.2.0
+home: https://github.com/zalando/postgres-operator
+description: Postgres Operator UI provides a graphical interface for a convenient database-as-a-service user experience
+keywords:
+- postgres
+- operator
+- ui
+- cloud-native
+- patroni
+- spilo
+maintainers:
+- name: siku4
+  email: sk@sik-net.de
+sources:
+- https://github.com/zalando/postgres-operator
+engine: gotpl

charts/postgres-operator-ui/templates/NOTES.txt

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+To verify that postgres-operator has started, run:
+
+  kubectl --namespace={{ .Release.Namespace }} get pods -l "app.kubernetes.io/name={{ template "postgres-operator-ui.name" . }}"

charts/postgres-operator-ui/templates/_helpers.tpl

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+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "postgres-operator-ui.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 "postgres-operator-ui.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 "postgres-operator-ui.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}

charts/postgres-operator-ui/templates/deployment.yaml

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+apiVersion: "apps/v1"
+kind: "Deployment"
+metadata:
+  labels:
+    app.kubernetes.io/name: {{ template "postgres-operator-ui.name" . }}
+    helm.sh/chart: {{ template "postgres-operator-ui.chart" . }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+  name: {{ template "postgres-operator-ui.fullname" . }}
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: {{ template "postgres-operator-ui.name" . }}
+      app.kubernetes.io/instance: {{ .Release.Name }}
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: {{ template "postgres-operator-ui.name" . }}
+        app.kubernetes.io/instance: {{ .Release.Name }}
+        team: "acid" # Parameterize?
+    spec:
+      serviceAccountName: {{ template "postgres-operator-ui.name" . }}
+      containers:
+        - name: "service"
+          image: "{{ .Values.image.registry }}/{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          ports:
+            - containerPort: 8081
+              protocol: "TCP"
+          readinessProbe:
+            httpGet:
+              path: "/health"
+              port: 8081
+            initialDelaySeconds: 5
+            timeoutSeconds: 1
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+          env:
+            - name: "APP_URL"
+              value: "http://localhost:8081"
+            - name: "OPERATOR_API_URL"
+              value: {{ .Values.envs.operatorApiUrl }}
+            - name: "TARGET_NAMESPACE"
+              value: {{ .Values.envs.targetNamespace }}
+            - name: "TEAMS"
+              value: |-
+                [ 
+                  "acid" 
+                ]
+            - name: "OPERATOR_UI_CONFIG"
+              value: |-
+                {
+                  "docs_link":"https://postgres-operator.readthedocs.io/en/latest/",
+                  "dns_format_string": "{1}-{0}.{2}",
+                  "databases_visible": true,
+                  "master_load_balancer_visible": true,
+                  "nat_gateways_visible": false,
+                  "replica_load_balancer_visible": true,
+                  "resources_visible": true,
+                  "users_visible": true,
+                  "postgresql_versions": [
+                    "12",
+                    "11",
+                    "10",
+                    "9.6",
+                    "9.5"
+                  ]
+                }

charts/postgres-operator-ui/templates/ingress.yaml

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+{{- if .Values.ingress.enabled -}}
+{{- $fullName := include "postgres-operator-ui.fullname" . -}}
+{{- $svcPort := .Values.service.port -}}
+{{- if semverCompare ">=1.14-0" .Capabilities.KubeVersion.GitVersion -}}
+apiVersion: networking.k8s.io/v1beta1
+{{- else -}}
+apiVersion: extensions/v1beta1
+{{- end }}
+kind: Ingress
+metadata:
+  name: {{ $fullName }}
+  labels:
+    app.kubernetes.io/name: {{ template "postgres-operator-ui.name" . }}
+    helm.sh/chart: {{ template "postgres-operator-ui.chart" . }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+  {{- with .Values.ingress.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+{{- 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:
+        {{- range .paths }}
+          - path: {{ . }}
+            backend:
+              serviceName: {{ $fullName }}
+              servicePort: {{ $svcPort }}
+        {{- end }}
+  {{- end }}
+{{- end }}

charts/postgres-operator-ui/templates/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app.kubernetes.io/name: {{ template "postgres-operator-ui.name" . }}
+    helm.sh/chart: {{ template "postgres-operator-ui.chart" . }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+  name: {{ template "postgres-operator-ui.fullname" . }}
+spec:
+  ports:
+    - port: {{ .Values.service.port }}
+      targetPort: 8081
+      protocol: TCP
+  selector:
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/name: {{ template "postgres-operator-ui.name" . }}
+  type: {{ .Values.service.type }}
+
+

charts/postgres-operator-ui/templates/serviceaccount.yaml

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+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ template "postgres-operator-ui.name" . }}
+  labels:
+    app.kubernetes.io/name: {{ template "postgres-operator-ui.name" . }}
+    helm.sh/chart: {{ template "postgres-operator-ui.chart" . }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+
+---
+apiVersion: rbac.authorization.k8s.io/v1beta1
+kind: ClusterRole
+metadata:
+  name: {{ template "postgres-operator-ui.name" . }}
+  labels:
+    app.kubernetes.io/name: {{ template "postgres-operator-ui.name" . }}
+    helm.sh/chart: {{ template "postgres-operator-ui.chart" . }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+    app.kubernetes.io/instance: {{ .Release.Name }}  
+rules:
+- apiGroups:
+  - acid.zalan.do
+  resources:
+  - postgresqls
+  verbs:
+  - create
+  - delete
+  - get
+  - list
+  - patch
+  - update
+- apiGroups:
+  - ""
+  resources:
+  - pods
+  verbs:
+  - get
+  - list
+  - watch
+- apiGroups:
+  - ""
+  resources:
+  - services
+  verbs:
+  - get
+  - list
+- apiGroups:
+  - apps
+  resources:
+  - statefulsets
+  verbs:
+  - get
+  - list
+- apiGroups:
+  - ""
+  resources:
+  - namespaces
+  verbs:
+  - get
+  - list
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: {{ template "postgres-operator-ui.name" . }}
+  labels:
+    app.kubernetes.io/name: {{ template "postgres-operator-ui.name" . }}
+    helm.sh/chart: {{ template "postgres-operator-ui.chart" . }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: {{ template "postgres-operator-ui.name" . }}
+subjects:
+- kind: ServiceAccount
+# note: the cluster role binding needs to be defined
+# for every namespace the operator-ui service account lives in.
+  name: {{ template "postgres-operator-ui.name" . }}
+  namespace: {{ .Release.Namespace }}

charts/postgres-operator-ui/values.yaml

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+# Default values for postgres-operator-ui.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+replicaCount: 1
+
+# configure ui image
+image:
+  registry: registry.opensource.zalan.do
+  repository: acid/postgres-operator-ui
+  tag: v1.2.0
+  pullPolicy: "IfNotPresent"
+
+# configure UI pod resources
+resources:
+  limits:
+    cpu: 300m
+    memory: 3000Mi
+  requests:
+    cpu: 100m
+    memory: 100Mi
+
+# configure UI ENVs
+envs:
+  # IMPORTANT: While operator chart and UI chart are idendependent, this is the interface between 
+  # UI and operator API. Insert the service name of the operator API here!
+  operatorApiUrl: "http://postgres-operator:8080"
+  targetNamespace: "default"
+
+# configure UI service
+service:
+  type: "ClusterIP"
+  port: "8080"
+
+# configure UI ingress. If needed: "enabled: true"
+ingress:
+  enabled: false
+  annotations: {}
+    # kubernetes.io/ingress.class: nginx
+    # kubernetes.io/tls-acme: "true"
+  hosts:
+    - host: ui.example.org
+      paths: [""]
+  tls: []
+  #  - secretName: ui-tls
+  #    hosts:
+  #      - ui.exmaple.org