SO1S-200 alb, nlb 연결하기 / External DNS 설정 추가

apps/app-backend/dev-values.yaml

@@ -23,4 +23,16 @@ resources:
     cpu: "1000m"
   requests:
     memory: "1000Mi"
-    cpu: "1000m"
+    cpu: "1000m"
+
+ingress:
+  annotations:
+    kubernetes.io/ingress.class: alb #alb를 사용한다는 의미
+    alb.ingress.kubernetes.io/target-type: instance #target이 ec2 인스턴스
+    alb.ingress.kubernetes.io/scheme: internet-facing #외부에 노출
+    external-dns.alpha.kubernetes.io/hostname: www.so1s.io
+  hosts: 
+    - www.so1s.io
+  paths:
+    - /
+  tls: []

apps/app-monitoring/dev-values.yaml

@@ -8,26 +8,58 @@ prometheus:
       operator: "Equal"
       value: "api"
       effect: "NoSchedule"
-    routePrefix: /prom
+    routePrefix: /graph
     storageSpec:
       volumeClaimTemplate:
         spec:
           accessModes: ["ReadWriteOnce"]
           resources:
             requests:
               storage: 5Gi
+  service:
+    type: LoadBalancer
+    annotations:
+      service.beta.kubernetes.io/aws-load-balancer-type: "external"
+      service.beta.kubernetes.io/aws-load-balancer-nlb-target-type: "instance"
+      service.beta.kubernetes.io/aws-load-balancer-scheme: "internet-facing"
   ingress:
-    ingressClassName: nginx
+    # ingressClassName: alb
     enabled: true
+    annotations: 
+      kubernetes.io/ingress.class: alb
+      alb.ingress.kubernetes.io/target-type: instance 
+      alb.ingress.kubernetes.io/scheme: internet-facing 
+      external-dns.alpha.kubernetes.io/hostname: prom.so1s.io
+    hosts:
+      - prom.so1s.io
     paths:
-      - /prom
+      - /
+    pathType: Prefix
+  thanosIngress:
+   enabled: false
+
 alertmanager:
   alertmanagerSpec: 
     tolerations:
       - key: kind
         operator: "Equal"
         value: "api"
         effect: "NoSchedule"
+  # service:
+  #   type: LoadBalancer
+  #   annotations:
+  #     service.beta.kubernetes.io/aws-load-balancer-type: "external"
+  #     service.beta.kubernetes.io/aws-load-balancer-nlb-target-type: "instance"
+  #     service.beta.kubernetes.io/aws-load-balancer-scheme: "internet-facing"      
+  ingress: # 추후에 설정 예정
+    # ingressClassName: alb
+    enabled: false
+    # annotations: 
+    #   kubernetes.io/ingress.class: alb
+    #   alb.ingress.kubernetes.io/target-type: instance 
+    #   alb.ingress.kubernetes.io/scheme: internet-facing 
+    #   external-dns.alpha.kubernetes.io/hostname: dashboard.so1s.io
+
 thanosRuler:
   thanosRulerSpec:
     tolerations:
@@ -58,16 +90,28 @@ grafana:
       value: "api"
       effect: "NoSchedule"
   adminPassword: password1234
+  service:
+    type: LoadBalancer
+    annotations:
+      service.beta.kubernetes.io/aws-load-balancer-type: "external"
+      service.beta.kubernetes.io/aws-load-balancer-nlb-target-type: "instance"
+      service.beta.kubernetes.io/aws-load-balancer-scheme: "internet-facing"
   ingress:
-    ingressClassName: nginx
+    # ingressClassName: alb
     enabled: true
-    annotations:
-      nginx.ingress.kubernetes.io/rewrite-target: /$2
-    path: /dashboard(/|$)(.*)
+    annotations: 
+      kubernetes.io/ingress.class: alb
+      alb.ingress.kubernetes.io/target-type: instance 
+      alb.ingress.kubernetes.io/scheme: internet-facing 
+      external-dns.alpha.kubernetes.io/hostname: dashboard.so1s.io
+      # nginx.ingress.kubernetes.io/rewrite-target: /$2
+    hosts:
+      - dashboard.so1s.io
+    path: /
   grafana.ini:
     server:
       domain: so1s.io
-      root_url: http://so1s.io/dashboard/
+      root_url: http://dashboard.so1s.io/
       serve_from_sub_path: true
 
 ## prometheus-node-exporter Configuration

apps/app-public/dev-values.yaml

@@ -0,0 +1 @@
+.

charts/backend/templates/_helpers.tpl

@@ -80,4 +80,14 @@ kind: ClusterRole
 name: cluster-admin
 apiGroup: rbac.authorization.k8s.io
 {{- end -}}
-{{- end -}}
+{{- end -}}
+
+{{- define "backend.serviceAnnotations" -}}
+{{- if eq .Values.vender "AWS" -}}
+service.beta.kubernetes.io/aws-load-balancer-type: "external"
+service.beta.kubernetes.io/aws-load-balancer-nlb-target-type: "instance"
+service.beta.kubernetes.io/aws-load-balancer-scheme: "internet-facing"
+{{- else if eq .Values.vender "on-premise"}}
+
+{{- end }}
+{{- end }}

charts/backend/templates/ingress.yaml

@@ -0,0 +1,35 @@
+{{- if .Values.ingress.enabled -}}  
+  {{- $pathType := .Values.ingress.pathType | default "Prefix" -}}
+  {{- $serviceName := printf "%s" (include "backend.fullname" .) -}}
+  {{- $servicePort := .Values.ingress.servicePort | default 80 -}}
+  {{- $paths := .Values.ingress.paths | default "/" -}}
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  namespace: {{ template "backend.namespace" . }}
+  name: {{ include "backend.fullname" . }}-ingress
+{{- if .Values.ingress.annotations }}
+  annotations:
+{{ toYaml .Values.ingress.annotations | indent 4 }}
+{{- end }}
+spec:
+  rules:
+    {{- if .Values.ingress.hosts }}
+    {{- range $host := .Values.ingress.hosts }}
+      - host: {{ tpl $host $ }}
+        http:
+          paths:
+    {{- range $p := $paths }}
+            - path: {{ tpl $p $ }}
+              pathType: {{ $pathType }}
+              backend:
+                service:
+                  name: {{ $serviceName }}
+                  port:
+                    number: {{ $servicePort }}
+      {{- end }}
+      {{- end -}}
+    {{- end }}
+  tls:
+{{ tpl (toYaml .Values.ingress.tls | indent 4) . }}
+{{- end -}}

charts/backend/templates/service.yaml

@@ -2,6 +2,8 @@ apiVersion: v1
 kind: Service
 metadata:
   name: {{ include "backend.fullname" . }}
+  annotations:
+    {{- include "backend.serviceAnnotations" . | nindent 4 }}
   labels:
     {{- include "backend.labels" . | nindent 4 }}
 spec:

charts/backend/values.yaml

@@ -1,9 +1,14 @@
-environment: "develop"
+
+vender: "AWS" # AWS | on-premise
+
+environment: "develop" # develop | production
 
 namespaceOverride: ""
 
 replicaCount: 1
 
+hostname: ""
+
 image:
   repository: nginx
   tag: ""
@@ -30,9 +35,18 @@ securityContext: {}
   # runAsNonRoot: true
   # runAsUser: 1000
 
+ingress:
+  enabled: true
+  annotations: {}
+  labels: {}
+  hosts: []
+  paths: []
+  tls: []
+  pathType: ""
+
 service:
-  type: ClusterIP
-  port: 8080
+  type: LoadBalancer
+  port: 80
   targetPort: 8080
 
 resources:

charts/public/aws-load-balancer-controller/dev-values.yaml

@@ -0,0 +1,13 @@
+# helm install alb -n kube-system -f charts/public/aws-load-balancer-controller/dev-values.yaml eks/aws-load-balancer-controller --create-namespace --wait
+
+clusterName: "So1s"
+
+region: ap-northeast-2
+
+vpcId: vpc-0252f7e64e41bd6d8
+
+tolerations:
+  - key: kind
+    operator: "Equal"
+    value: "public"
+    effect: "NoSchedule"

charts/public/external-dns/Chart.yaml

@@ -0,0 +1,24 @@
+apiVersion: v2
+name: external-dns
+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: "1.16.0"

charts/public/external-dns/dev-values.yaml

@@ -0,0 +1,27 @@
+# helm install external-dns -n kube-system -f charts/public/external-dns/dev-values.yaml charts/public/external-dns --create-namespace --wait
+
+serviceAccount:
+  roleArn: "arn:aws:iam::089143290485:role/external-dns"
+
+image:
+  repository: k8s.gcr.io/external-dns/external-dns
+  tag: v0.10.2
+  pullPolicy: IfNotPresent
+
+
+tolerations:
+  - key: kind
+    operator: "Equal"
+    value: "public"
+    effect: "NoSchedule"
+
+deployment:
+  args:
+    - --source=service
+    - --source=ingress
+    - --domain-filter=so1s.io
+    - --provider=aws
+    - --policy=sync
+    - --aws-zone-type=public # only look at public hosted zones (valid values are public, private or no value for both)
+    - --registry=txt
+    - --txt-owner-id=Z061949148T1T03TD2DZ

charts/public/external-dns/templates/NOTES.txt

@@ -0,0 +1,22 @@
+1. Get the application URL by running these commands:
+{{- if .Values.ingress.enabled }}
+{{- range $host := .Values.ingress.hosts }}
+  {{- range .paths }}
+  http{{ if $.Values.ingress.tls }}s{{ end }}://{{ $host.host }}{{ .path }}
+  {{- end }}
+{{- end }}
+{{- else if contains "NodePort" .Values.service.type }}
+  export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "external-dns.fullname" . }})
+  export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
+  echo http://$NODE_IP:$NODE_PORT
+{{- else if contains "LoadBalancer" .Values.service.type }}
+     NOTE: It may take a few minutes for the LoadBalancer IP to be available.
+           You can watch the status of by running 'kubectl get --namespace {{ .Release.Namespace }} svc -w {{ include "external-dns.fullname" . }}'
+  export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "external-dns.fullname" . }} --template "{{"{{ range (index .status.loadBalancer.ingress 0) }}{{.}}{{ end }}"}}")
+  echo http://$SERVICE_IP:{{ .Values.service.port }}
+{{- else if contains "ClusterIP" .Values.service.type }}
+  export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app.kubernetes.io/name={{ include "external-dns.name" . }},app.kubernetes.io/instance={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
+  export CONTAINER_PORT=$(kubectl get pod --namespace {{ .Release.Namespace }} $POD_NAME -o jsonpath="{.spec.containers[0].ports[0].containerPort}")
+  echo "Visit http://127.0.0.1:8080 to use your application"
+  kubectl --namespace {{ .Release.Namespace }} port-forward $POD_NAME 8080:$CONTAINER_PORT
+{{- end }}

charts/public/nlb/templates/_helpers.tpl → charts/public/external-dns/templates/_helpers.tpl

@@ -1,7 +1,7 @@
 {{/*
 Expand the name of the chart.
 */}}
-{{- define "nlb.name" -}}
+{{- define "external-dns.name" -}}
 {{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
 {{- end }}
 
@@ -10,7 +10,7 @@ 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 "nlb.fullname" -}}
+{{- define "external-dns.fullname" -}}
 {{- if .Values.fullnameOverride }}
 {{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
 {{- else }}
@@ -26,16 +26,16 @@ If release name contains chart name it will be used as a full name.
 {{/*
 Create chart name and version as used by the chart label.
 */}}
-{{- define "nlb.chart" -}}
+{{- define "external-dns.chart" -}}
 {{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
 {{- end }}
 
 {{/*
 Common labels
 */}}
-{{- define "nlb.labels" -}}
-helm.sh/chart: {{ include "nlb.chart" . }}
-{{ include "nlb.selectorLabels" . }}
+{{- define "external-dns.labels" -}}
+helm.sh/chart: {{ include "external-dns.chart" . }}
+{{ include "external-dns.selectorLabels" . }}
 {{- if .Chart.AppVersion }}
 app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
 {{- end }}
@@ -45,17 +45,17 @@ app.kubernetes.io/managed-by: {{ .Release.Service }}
 {{/*
 Selector labels
 */}}
-{{- define "nlb.selectorLabels" -}}
-app.kubernetes.io/name: {{ include "nlb.name" . }}
+{{- define "external-dns.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "external-dns.name" . }}
 app.kubernetes.io/instance: {{ .Release.Name }}
 {{- end }}
 
 {{/*
 Create the name of the service account to use
 */}}
-{{- define "nlb.serviceAccountName" -}}
+{{- define "external-dns.serviceAccountName" -}}
 {{- if .Values.serviceAccount.create }}
-{{- default (include "nlb.fullname" .) .Values.serviceAccount.name }}
+{{- default (include "external-dns.fullname" .) .Values.serviceAccount.name }}
 {{- else }}
 {{- default "default" .Values.serviceAccount.name }}
 {{- end }}

charts/public/external-dns/templates/clusterrole.yaml

@@ -0,0 +1,20 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: {{ include "external-dns.fullname" . }}
+rules:
+  - apiGroups: [""]
+    resources: ["services"]
+    verbs: ["get","watch","list"]
+  - apiGroups: [""]
+    resources: ["pods"]
+    verbs: ["get","watch","list"]
+  - apiGroups: ["networking","networking.k8s.io"]
+    resources: ["ingresses"]
+    verbs: ["get","watch","list"]
+  - apiGroups: [""]
+    resources: ["nodes"]
+    verbs: ["get","watch","list"]
+  - apiGroups: [""]
+    resources: ["endpoints"]
+    verbs: ["get","watch","list"]