refactor: 폴더 구조 변경

gitops/platform/keycloak/base/keycloak.yaml

@@ -0,0 +1,113 @@
+apiVersion: k8s.keycloak.org/v2beta1
+kind: Keycloak
+metadata:
+  name: keycloak
+  labels:
+    app.kubernetes.io/name: keycloak
+    app.kubernetes.io/instance: keycloak
+    app.kubernetes.io/version: "26.6.1"
+    app.kubernetes.io/component: identity-provider
+    app.kubernetes.io/part-of: auth-platform
+    app.kubernetes.io/managed-by: keycloak-operator
+spec:
+  instances: 2
+  db:
+    vendor: postgres
+    host: identity-postgres
+    port: 5432
+    database: keycloak
+    usernameSecret:
+      name: keycloak-db-operator
+      key: username
+    passwordSecret:
+      name: keycloak-db-operator
+      key: password
+    poolInitialSize: 5
+    poolMinSize: 5
+    poolMaxSize: 20
+  bootstrapAdmin:
+    user:
+      secret: keycloak-bootstrap-admin-operator # 어떤 시크릿에서 읽을지 지정하는 거
+  hostname:
+    strict: true # 명시된 hostname을 기준으로 URL을 만든다.
+    backchannelDynamic: false # 백URL도 프론트 hostname과 동일하게 고정한다.
+  http:
+    httpEnabled: true
+    httpPort: 8080
+    serviceHttpPort: 80
+    serviceName: keycloak
+    labels:
+      app.kubernetes.io/name: keycloak
+      app.kubernetes.io/instance: keycloak
+      app.kubernetes.io/component: identity-provider
+      app.kubernetes.io/part-of: auth-platform
+      app.kubernetes.io/managed-by: keycloak-operator
+  proxy:
+    headers: xforwarded # X-Forwarded-For  X-Forwarded-Proto  X-Forwarded-Host  X-Forwarded-Port 해당 헤더들을 사용하겠다는 의미
+  ingress:
+    enabled: false
+  networkPolicy:
+    enabled: false
+  additionalOptions:
+    - name: cache
+      value: ispn # 애플리케이션의 캐시 엔진으로 ispn으로 사용
+    - name: cache-stack
+      value: jdbc-ping # 클러스터링된 서버끼리 서로를 찾는(Discovery) 방식을 JDBC-PING으로 정한 것
+    - name: health-enabled
+      value: "true" # 상태 확인(Health Check) 엔드포인트를 활성화
+    - name: metrics-enabled
+      value: "true" # 메트릭(성능 지표) 수집 기능을 켬
+    - name: log-console-output
+      value: json # 로그 형식을 JSON 구조로 변경
+  env:
+    - name: JAVA_OPTS_APPEND
+      value: "-XX:MaxRAMPercentage=70 -XX:InitialRAMPercentage=50 -XX:+ExitOnOutOfMemoryError"
+  resources:
+    requests:
+      cpu: 500m
+      memory: 1Gi
+    limits:
+      cpu: "2"
+      memory: 2Gi
+  scheduling:
+    topologySpreadConstraints:
+      - maxSkew: 1
+        topologyKey: kubernetes.io/hostname
+        whenUnsatisfiable: ScheduleAnyway
+        labelSelector:
+          matchLabels:
+            app.kubernetes.io/instance: keycloak
+            app.kubernetes.io/managed-by: keycloak-operator
+    affinity: # 특정 노드에 다른 pod에 관계에 따라 배치 위치를 결정하는 규칙을 정의한다
+      podAntiAffinity: # 특정 조건을 만족하는 포드와는 같은 장소에 있지 않는다.
+        preferredDuringSchedulingIgnoredDuringExecution: # 가급적 지켜줘
+          - weight: 100 # 가중치가 100임 매우 중요하다고 알림
+            podAffinityTerm: # 어떤 파드를 피해다닐지
+              topologyKey: kubernetes.io/hostname # 피할 기준은 호스트 네임으로 설정
+              labelSelector:
+                matchLabels:
+                  app.kubernetes.io/instance: keycloak # keycloak과 피하겠다
+                  app.kubernetes.io/managed-by: keycloak-operator # keycloak-operator에 의해 관리되는
+  unsupported:
+    podTemplate:
+      spec:
+        securityContext:
+          runAsNonRoot: true
+          runAsUser: 1000
+          runAsGroup: 1000
+          fsGroup: 1000
+          fsGroupChangePolicy: OnRootMismatch
+          seccompProfile:
+            type: RuntimeDefault
+        containers:
+          - name: keycloak
+            securityContext:
+              allowPrivilegeEscalation: false
+              capabilities:
+                drop:
+                  - ALL
+              runAsNonRoot: true
+              runAsUser: 1000
+              runAsGroup: 1000
+              seccompProfile:
+                type: RuntimeDefault

gitops/platform/keycloak/base/kustomization.yaml

@@ -0,0 +1,14 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+  - keycloak.yaml
+labels:
+  - pairs:
+      app.kubernetes.io/name: keycloak
+      app.kubernetes.io/instance: keycloak
+      app.kubernetes.io/version: "26.6.1"
+      app.kubernetes.io/component: identity-provider
+      app.kubernetes.io/part-of: auth-platform
+      app.kubernetes.io/managed-by: kustomize
+    includeSelectors: false
+    includeTemplates: true

gitops/platform/keycloak/overlays/lab/ingress-admin.yaml

@@ -0,0 +1,27 @@
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: keycloak-admin
+  labels:
+    app.kubernetes.io/name: keycloak
+    app.kubernetes.io/instance: keycloak
+    app.kubernetes.io/version: "26.6.1"
+    app.kubernetes.io/component: identity-provider
+    app.kubernetes.io/part-of: auth-platform
+    app.kubernetes.io/managed-by: kustomize
+  annotations:
+    traefik.ingress.kubernetes.io/router.entrypoints: web
+    traefik.ingress.kubernetes.io/router.middlewares: mnt-keycloak-security-headers@kubernetescrd
+spec:
+  ingressClassName: traefik
+  rules:
+    - host: keycloak-admin.local.test
+      http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: keycloak
+                port:
+                  name: http

gitops/platform/keycloak/overlays/lab/ingress-public.yaml

@@ -0,0 +1,48 @@
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: keycloak-public
+  labels:
+    app.kubernetes.io/name: keycloak
+    app.kubernetes.io/instance: keycloak
+    app.kubernetes.io/version: "26.6.1"
+    app.kubernetes.io/component: identity-provider
+    app.kubernetes.io/part-of: auth-platform
+    app.kubernetes.io/managed-by: kustomize
+  annotations:
+    traefik.ingress.kubernetes.io/router.entrypoints: web
+    traefik.ingress.kubernetes.io/router.middlewares: mnt-keycloak-security-headers@kubernetescrd # frameDeny 제외 — admin 콘솔의 silent SSO iframe 허용
+spec:
+  ingressClassName: traefik
+  rules:
+    - host: keycloak.local.test
+      http:
+        paths:
+          - path: /realms/
+            pathType: Prefix
+            backend:
+              service:
+                name: keycloak
+                port:
+                  name: http
+          - path: /resources/
+            pathType: Prefix
+            backend:
+              service:
+                name: keycloak
+                port:
+                  name: http
+          - path: /.well-known/
+            pathType: Prefix
+            backend:
+              service:
+                name: keycloak
+                port:
+                  name: http
+          - path: /js/
+            pathType: Prefix
+            backend:
+              service:
+                name: keycloak
+                port:
+                  name: http

gitops/platform/keycloak/overlays/lab/keycloak-hostname-patch.yaml

@@ -0,0 +1,8 @@
+apiVersion: k8s.keycloak.org/v2beta1
+kind: Keycloak
+metadata:
+  name: keycloak
+spec:
+  hostname:
+    hostname: http://keycloak.local.test
+    admin: http://keycloak-admin.local.test

gitops/platform/keycloak/overlays/lab/kustomization.yaml

@@ -0,0 +1,17 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+namespace: mnt
+
+resources:
+  - ../../base
+  - middleware.yaml
+  - ingress-public.yaml
+  - ingress-admin.yaml
+  - networkpolicy.yaml
+
+patches:
+  - target:
+      kind: Keycloak
+      name: keycloak
+    path: keycloak-hostname-patch.yaml

gitops/platform/keycloak/overlays/lab/middleware.yaml

@@ -0,0 +1,15 @@
+apiVersion: traefik.io/v1alpha1
+kind: Middleware
+metadata:
+  name: keycloak-security-headers
+  labels:
+    app.kubernetes.io/name: keycloak
+    app.kubernetes.io/instance: keycloak
+    app.kubernetes.io/component: identity-provider
+    app.kubernetes.io/part-of: auth-platform
+    app.kubernetes.io/managed-by: kustomize
+spec:
+  headers:
+    browserXssFilter: true
+    contentTypeNosniff: true
+    referrerPolicy: strict-origin-when-cross-origin

gitops/platform/keycloak/overlays/lab/networkpolicy.yaml

@@ -0,0 +1,140 @@
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: keycloak-peer
+  labels:
+    app.kubernetes.io/name: keycloak
+    app.kubernetes.io/instance: keycloak
+    app.kubernetes.io/component: identity-provider
+    app.kubernetes.io/part-of: auth-platform
+    app.kubernetes.io/managed-by: kustomize
+spec:
+  podSelector:
+    matchLabels:
+      app.kubernetes.io/instance: keycloak
+      app.kubernetes.io/managed-by: keycloak-operator
+  policyTypes:
+    - Ingress
+    - Egress
+  ingress:
+    - from:
+        - podSelector:
+            matchLabels:
+              app.kubernetes.io/instance: keycloak
+              app.kubernetes.io/managed-by: keycloak-operator
+  egress:
+    - to:
+        - podSelector:
+            matchLabels:
+              app.kubernetes.io/instance: keycloak
+              app.kubernetes.io/managed-by: keycloak-operator
+---
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: keycloak-ingress-traefik
+  labels:
+    app.kubernetes.io/name: keycloak
+    app.kubernetes.io/instance: keycloak
+    app.kubernetes.io/component: identity-provider
+    app.kubernetes.io/part-of: auth-platform
+    app.kubernetes.io/managed-by: kustomize
+spec:
+  podSelector:
+    matchLabels:
+      app.kubernetes.io/instance: keycloak
+      app.kubernetes.io/managed-by: keycloak-operator
+  policyTypes:
+    - Ingress
+  ingress:
+    - from:
+        - namespaceSelector:
+            matchLabels:
+              kubernetes.io/metadata.name: kube-system
+          podSelector:
+            matchLabels:
+              app.kubernetes.io/name: traefik
+      ports:
+        - protocol: TCP
+          port: 8080
+---
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: keycloak-egress-postgres
+  labels:
+    app.kubernetes.io/name: keycloak
+    app.kubernetes.io/instance: keycloak
+    app.kubernetes.io/component: identity-provider
+    app.kubernetes.io/part-of: auth-platform
+    app.kubernetes.io/managed-by: kustomize
+spec:
+  podSelector:
+    matchLabels:
+      app.kubernetes.io/instance: keycloak
+      app.kubernetes.io/managed-by: keycloak-operator
+  policyTypes:
+    - Egress
+  egress:
+    - to:
+        - podSelector:
+            matchLabels:
+              app.kubernetes.io/name: identity-postgres
+              app.kubernetes.io/instance: identity-postgres
+      ports:
+        - protocol: TCP
+          port: 5432
+---
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: keycloak-ingress-auth-server
+  labels:
+    app.kubernetes.io/name: keycloak
+    app.kubernetes.io/instance: keycloak
+    app.kubernetes.io/component: identity-provider
+    app.kubernetes.io/part-of: auth-platform
+    app.kubernetes.io/managed-by: kustomize
+spec:
+  podSelector:
+    matchLabels:
+      app.kubernetes.io/instance: keycloak
+      app.kubernetes.io/managed-by: keycloak-operator
+  policyTypes:
+    - Ingress
+  ingress:
+    - from:
+        - podSelector:
+            matchLabels:
+              app.kubernetes.io/name: auth-server
+              app.kubernetes.io/instance: auth-server
+      ports:
+        - protocol: TCP
+          port: 8080
+---
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: keycloak-ingress-oauth2-proxy
+  labels:
+    app.kubernetes.io/name: keycloak
+    app.kubernetes.io/instance: keycloak
+    app.kubernetes.io/component: identity-provider
+    app.kubernetes.io/part-of: auth-platform
+    app.kubernetes.io/managed-by: kustomize
+spec:
+  podSelector:
+    matchLabels:
+      app.kubernetes.io/instance: keycloak
+      app.kubernetes.io/managed-by: keycloak-operator
+  policyTypes:
+    - Ingress
+  ingress:
+    - from:
+        - podSelector:
+            matchLabels:
+              app.kubernetes.io/name: oauth2-proxy
+              app.kubernetes.io/instance: oauth2-proxy
+      ports:
+        - protocol: TCP
+          port: 8080