Merge pull request #2 from tsuru/chore/router

feat: kubernetes-router

charts/kubernetes-router/.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/kubernetes-router/Chart.yaml

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+apiVersion: v2
+name: kubernetes-router
+description: A Helm chart for Kubernetes
+
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+type: application
+
+# This is the chart version. This version number should be incremented each time you make changes
+# to the chart and its templates, including the app version.
+# Versions are expected to follow Semantic Versioning (https://semver.org/)
+version: 0.1.0
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application. Versions are not expected to
+# follow Semantic Versioning. They should reflect the version the application is using.
+# It is recommended to use it with quotes.
+appVersion: "0.14.0"

charts/kubernetes-router/templates/_helpers.tpl

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

charts/kubernetes-router/templates/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "kubernetes-router.fullname" . }}
+  labels:
+    {{- include "kubernetes-router.labels" . | nindent 4 }}
+spec:
+  {{- if not .Values.autoscaling.enabled }}
+  replicas: {{ .Values.replicaCount }}
+  {{- end }}
+  {{- if .Values.strategy }}
+  strategy:
+    {{- toYaml .Values.strategy | nindent 4 }}
+  {{- end }}
+  selector:
+    matchLabels:
+      {{- include "kubernetes-router.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      {{- with .Values.podAnnotations }}
+      annotations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      labels:
+        {{- include "kubernetes-router.selectorLabels" . | nindent 8 }}
+    spec:
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      serviceAccountName: {{ include "kubernetes-router.serviceAccountName" . }}
+      securityContext:
+        {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      containers:
+        - name: {{ .Chart.Name }}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          command: ["./kubernetes-router"]
+          args:
+            - "-v"
+            - "3"
+            - "-k8s-namespace"
+            - "tsuru"
+            {{- range $mode := .Values.controllerModes }}
+            - "-controller-modes"
+            - {{ $mode | quote }}
+            {{- end }}
+            {{- range $arg := .Values.arguments }}
+            - {{ $arg }}
+            {{- end }}
+            {{- if .Values.multiCluster.enabled }}
+            - "-clusters-file"
+            - "/clusters/clusters.yaml"
+            {{- end }}
+          ports:
+            - name: http
+              containerPort: 8077
+              protocol: TCP
+          livenessProbe:
+            httpGet:
+              path: /healthcheck
+              port: 8077
+            timeoutSeconds: 5
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+          env:
+            - name: ROUTER_API_USER
+              valueFrom:
+                secretKeyRef:
+                  name: kubernetes-router
+                  key: api-user
+            - name: ROUTER_API_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: kubernetes-router
+                  key: api-password
+            {{- if .Values.tracing.enabled }}
+            - name: JAEGER_AGENT_HOST
+              value: {{ .Values.tracing.agent_host }}
+            - name: JAEGER_SAMPLER_TYPE
+              value: {{ .Values.tracing.sampler.type }}
+            {{- if .Values.tracing.sampler.param }}
+            - name: JAEGER_SAMPLER_PARAM
+              value: {{ .Values.tracing.sampler.param | quote }}
+            {{- end }}
+            {{- end }}
+          volumeMounts:
+            {{- if .Values.multiCluster.enabled }}
+            - mountPath: "/clusters"
+              name: clusters
+            {{- end }}
+            {{- if .Values.hostCertBundleFile }}
+            - name: host-cert-bundle
+              mountPath: {{ .Values.hostCertBundleFile }}
+            {{- end }}
+      volumes:
+        {{- if .Values.multiCluster.enabled }}
+        - name: clusters
+          secret:
+            secretName: kubernetes-router-clusters
+        {{- end }}
+        {{- if .Values.hostCertBundleFile }}
+        - name: host-cert-bundle
+          hostPath:
+            path: {{ .Values.hostCertBundleFile }}
+            type: File
+        {{- end }}
+      {{- 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/kubernetes-router/templates/hpa.yaml

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

charts/kubernetes-router/templates/ingress.yaml

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+{{- if .Values.ingress.enabled -}}
+{{- $fullName := include "kubernetes-router.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:
+    {{- include "kubernetes-router.labels" . | nindent 4 }}
+  {{- 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: {{ .path }}
+            backend:
+              serviceName: {{ $fullName }}
+              servicePort: {{ $svcPort }}
+          {{- end }}
+    {{- end }}
+  {{- end }}

charts/kubernetes-router/templates/rbac.yaml

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+{{- if .Values.serviceAccount.create -}}
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: {{ include "kubernetes-router.fullname" . }}
+  labels:
+    {{- include "kubernetes-router.labels" . | nindent 4 }}
+rules:
+- apiGroups: [""]
+  resources: ["services"]
+  verbs: ["*"]
+- apiGroups: [""]
+  resources: ["events"]
+  verbs: ["get", "list"]
+- apiGroups: ["extensions"]
+  resources: ["ingresses"]
+  verbs: ["*"]
+- apiGroups: [""]
+  resources: ["nodes"]
+  verbs: ["list", "get"]
+- apiGroups: ["apiextensions.k8s.io"]
+  resources: ["customresourcedefinitions"]
+  verbs: ["list", "get"]
+- apiGroups: ["tsuru.io"]
+  resources: ["apps"]
+  verbs: ["get"]
+- apiGroups: ["networking.istio.io"]
+  resources: ["gateways", "virtualservices"]
+  verbs: ["*"]
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: {{ include "kubernetes-router.fullname" . }}
+  labels:
+    {{- include "kubernetes-router.labels" . | nindent 4 }}
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: {{ include "kubernetes-router.fullname" . }}
+subjects:
+- kind: ServiceAccount
+  name: {{ include "kubernetes-router.serviceAccountName" . }}
+  namespace: {{ .Release.Namespace }}
+{{- end -}}

charts/kubernetes-router/templates/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "kubernetes-router.fullname" . }}
+  labels:
+    {{- include "kubernetes-router.labels" . | nindent 4 }}
+spec:
+  type: {{ .Values.service.type }}
+  ports:
+    - port: {{ .Values.service.port }}
+      targetPort: 8077
+      protocol: TCP
+      name: http
+  selector:
+    {{- include "kubernetes-router.selectorLabels" . | nindent 4 }}

charts/kubernetes-router/templates/serviceaccount.yaml

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+{{- if .Values.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "kubernetes-router.serviceAccountName" . }}
+  labels:
+    {{- include "kubernetes-router.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+{{- end }}

charts/kubernetes-router/templates/tests/test-connection.yaml

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+apiVersion: v1
+kind: Pod
+metadata:
+  name: "{{ include "kubernetes-router.fullname" . }}-test-connection"
+  labels:
+    {{- include "kubernetes-router.labels" . | nindent 4 }}
+  annotations:
+    "helm.sh/hook": test
+spec:
+  containers:
+    - name: wget
+      image: busybox
+      command: ['wget']
+      args: ['{{ include "kubernetes-router.fullname" . }}:{{ .Values.service.port }}']
+  restartPolicy: Never