This version has been adapter to Spring Boot 2.3 support for docker i…

…mages, and supports deploying to Cloud Foundry and Kubernetes with free Wavefront monitoring.

ci/pipeline.yml

@@ -0,0 +1,38 @@
+resource_types:
+- name: cf-cli-resource
+  type: docker-image
+  source:
+    repository: nulldriver/cf-cli-resource
+    tag: latest
+
+resources:  
+  - name: cf
+    type: cf
+    source:
+      api: ((cf-api))
+      username: ((cf-username))
+      password: ((cf-password))
+      organization: ((cf-org))
+      space: ((cf-space))
+  - name: docker-image
+    type: docker-image
+    source:
+      repository: spring-petclinic/api-gateway
+
+jobs:
+  - name: deploy
+    plan:
+    - get: docker-image
+      trigger: true
+      params:
+        globs: [ "((app)).jar", "manifest.yml" ]
+    - put: cf
+      params:
+        manifest: github-prerelease/manifest.yml
+        current_app_name: ((app))
+    - put: cf-add-network-policy
+      resource: cf-env
+      params:
+        command: add-network-policy
+        source_app: cloudnativepoll-webui
+        destination_app: cloudnativepoll-backend

docker-compose.yml

@@ -14,7 +14,7 @@ services:
     mem_limit: 512M
     depends_on:
       - config-server
-    entrypoint: ["./dockerize","-wait=tcp://config-server:8888","-timeout=60s","--","java", "org.springframework.boot.loader.JarLauncher"]
+    entrypoint: ["./dockerize","-wait=tcp://config-server:8888","-timeout=60s","--","java", "-XX:+UnlockExperimentalVMOptions", "-XX:+UseCGroupMemoryLimitForHeap", "-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"]
     ports:
      - 8761:8761
 
@@ -25,7 +25,7 @@ services:
     depends_on:
      - config-server
      - discovery-server
-    entrypoint: ["./dockerize","-wait=tcp://discovery-server:8761","-timeout=60s","--","java", "org.springframework.boot.loader.JarLauncher"]
+    entrypoint: ["./dockerize","-wait=tcp://discovery-server:8761","-timeout=60s","--","java", "-XX:+UnlockExperimentalVMOptions", "-XX:+UseCGroupMemoryLimitForHeap", "-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"]
     ports:
     - 8081:8081
 
@@ -36,7 +36,7 @@ services:
     depends_on:
      - config-server
      - discovery-server
-    entrypoint: ["./dockerize","-wait=tcp://discovery-server:8761","-timeout=60s","--","java", "org.springframework.boot.loader.JarLauncher"]
+    entrypoint: ["./dockerize","-wait=tcp://discovery-server:8761","-timeout=60s","--","java", "-XX:+UnlockExperimentalVMOptions", "-XX:+UseCGroupMemoryLimitForHeap", "-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"]
     ports:
      - 8082:8082
 
@@ -47,7 +47,7 @@ services:
     depends_on:
      - config-server
      - discovery-server
-    entrypoint: ["./dockerize","-wait=tcp://discovery-server:8761","-timeout=60s","--","java", "org.springframework.boot.loader.JarLauncher"]
+    entrypoint: ["./dockerize","-wait=tcp://discovery-server:8761","-timeout=60s","--","java", "-XX:+UnlockExperimentalVMOptions", "-XX:+UseCGroupMemoryLimitForHeap", "-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"]
     ports:
      - 8083:8083
 
@@ -58,7 +58,7 @@ services:
     depends_on:
      - config-server
      - discovery-server
-    entrypoint: ["./dockerize","-wait=tcp://discovery-server:8761","-timeout=60s","--","java", "org.springframework.boot.loader.JarLauncher"]
+    entrypoint: ["./dockerize","-wait=tcp://discovery-server:8761","-timeout=60s","--","java", "-XX:+UnlockExperimentalVMOptions", "-XX:+UseCGroupMemoryLimitForHeap", "-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"]
     ports:
      - 8080:8080
 
@@ -78,7 +78,7 @@ services:
     depends_on:
      - config-server
      - discovery-server
-    entrypoint: ["./dockerize","-wait=tcp://discovery-server:8761","-timeout=60s","--","java", "org.springframework.boot.loader.JarLauncher"]
+    entrypoint: ["./dockerize","-wait=tcp://discovery-server:8761","-timeout=60s","--","java", "-XX:+UnlockExperimentalVMOptions", "-XX:+UseCGroupMemoryLimitForHeap", "-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"]
     ports:
      - 9090:9090
 

k8s/api-gateway-deployment.yaml

@@ -0,0 +1,50 @@
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: api-gateway
+  name: api-gateway
+  namespace: spring-pet-clinic
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: api-gateway
+  strategy: {}
+  template:
+    metadata:
+      labels:
+        app: api-gateway
+    spec:
+      containers:
+      - image: ${REPOSITORY_PREFIX}/api-gateway:latest
+        name: api-gateway
+        imagePullPolicy: Always
+        livenessProbe:
+          httpGet:
+            port: 8080
+            path: /actuator/health
+          initialDelaySeconds: 90
+          periodSeconds: 2
+        readinessProbe:
+          httpGet:
+            port: 8080
+            path: /actuator/health
+          initialDelaySeconds: 15
+        resources:
+          limits:
+            memory: 1Gi
+          requests:
+            cpu: 2000m
+            memory: 1Gi
+        env:
+        - name: SPRING_PROFILES_ACTIVE
+          value: kubernetes
+        - name: MANAGEMENT_METRICS_EXPORT_WAVEFRONT_URI
+          value: proxy://wavefront-proxy.spring-pet-clinic.svc.cluster.local:2878
+        ports:
+        - containerPort: 8080
+        resources: {}
+      restartPolicy: Always
+status: {}

k8s/customers-service-deployment.yaml

@@ -0,0 +1,60 @@
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  annotations:
+  labels:
+    app: customers-service
+  name: customers-service
+  namespace: spring-pet-clinic
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: customers-service
+  strategy: {}
+  template:
+    metadata:
+      labels:
+        app: customers-service
+    spec:
+      containers:
+      - image: ${REPOSITORY_PREFIX}/customers-service:latest
+        name: customers-service
+        imagePullPolicy: Always
+        livenessProbe:
+          httpGet:
+            port: 8080
+            path: /actuator/health
+          initialDelaySeconds: 90
+          periodSeconds: 2
+        readinessProbe:
+          httpGet:
+            port: 8080
+            path: /actuator/health
+          initialDelaySeconds: 15
+        resources:
+          limits:
+            memory: 1Gi
+          requests:
+            cpu: 2000m
+            memory: 1Gi
+        env:
+        - name: SPRING_PROFILES_ACTIVE
+          value: kubernetes
+        - name: SPRING_DATASOURCE_URL
+          value: jdbc:mysql://customers-db-mysql.spring-pet-clinic.svc.cluster.local:3306/my_database?queryInterceptors=brave.mysql8.TracingQueryInterceptor&exceptionInterceptors=brave.mysql8.TracingExceptionInterceptor&zipkinServiceName=customers-db
+        - name: SPRING_DATASOURCE_USERNAME
+          value: root
+        - name: SPRING_DATASOURCE_PASSWORD
+          valueFrom:
+             secretKeyRef:
+               name: customers-db-mysql
+               key: mysql-root-password
+        - name: MANAGEMENT_METRICS_EXPORT_WAVEFRONT_URI
+          value: proxy://wavefront-proxy.spring-pet-clinic.svc.cluster.local:2878
+        ports:
+        - containerPort: 8080
+        resources: {}
+      restartPolicy: Always
+status: {}

k8s/init-namespace/01-namespace.yaml

@@ -0,0 +1,4 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: spring-pet-clinic

k8s/init-services/02-config-map.yaml

@@ -0,0 +1,108 @@
+---
+kind: ConfigMap
+apiVersion: v1
+metadata:
+  name: pet-clinic-config
+  namespace: spring-pet-clinic
+data:
+  application.yaml: |-
+    server:
+      port: 8080
+      compression:
+        enabled: true
+        mime-types: application/json,text/css,application/javascript
+        min-response-size: 2048
+
+    wavefront:
+      application:
+        name: spring-pet-clinic-k8s
+      freemium-account: true
+
+    # Logging
+    logging.level.org.springframework: INFO
+
+    # Metrics
+    management:
+      endpoint:
+        restart:
+          enabled: true
+        metrics:
+          enabled: true
+        prometheus:
+          enabled: true
+      endpoints:
+        web:
+          exposure:
+            include: '*'
+
+      metrics:
+        export:
+          prometheus:
+            enabled: true
+          wavefront:
+            enabled: true
+
+    customers-service-id: http://customers-service.spring-pet-clinic.svc.cluster.local:8080
+    visits-service-id: http://vists-service.spring-pet-clinic.svc.cluster.local:8080
+
+    spring:
+      datasource:
+        schema: classpath*:db/mysql/schema.sql
+        data: classpath*:db/mysql/data.sql
+        platform: mysql
+        initialization-mode: always
+
+      jpa:
+        show-sql: true
+        hibernate:
+          ddl-auto: none
+          generate-ddl: false
+      sleuth:
+        sampler:
+          probability: 1.0
+        config:
+          # Allow the microservices to override the remote properties with their own System properties or config file
+          allow-override: true
+          # Override configuration with any local property source
+          override-none: true
+      messages:
+        basename: messages/messages
+      cloud:
+        kubernetes:
+          discovery:
+            enabled: true
+        loadbalancer:
+          ribbon:
+            enabled: false
+        gateway:
+          x-forwarded:  
+            enabled: true 
+            for-enabled: true 
+            proto-enabled: true 
+            host-append: false  
+            port-append: false  
+            proto-append: false
+          routes:
+            - id: vets-service
+              uri: http://vets-service.spring-pet-clinic.svc.cluster.local:8080
+              predicates:
+                - Path=/api/vet/**
+              filters:
+                - StripPrefix=2
+            - id: visits-service
+              uri: http://visits-service.spring-pet-clinic.svc.cluster.local:8080
+              predicates:
+                - Path=/api/visit/**
+              filters:
+                - StripPrefix=2
+            - id: customers-service
+              uri: http://customers-service.spring-pet-clinic.svc.cluster.local:8080
+              predicates:
+                - Path=/api/customer/**
+              filters:
+                - StripPrefix=2
+    vets:
+      cache:
+        ttl: 60
+        heap-size: 101
+

k8s/init-services/03-role.yaml

@@ -0,0 +1,25 @@
+kind: Role
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  namespace: spring-pet-clinic
+  name: namespace-reader
+rules:
+  - apiGroups: ["", "extensions", "apps"]
+    resources: ["configmaps", "pods", "services", "endpoints", "secrets"]
+    verbs: ["get", "list", "watch"]
+
+---
+
+kind: RoleBinding
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: namespace-reader-binding
+  namespace: spring-pet-clinic
+subjects:
+- kind: ServiceAccount
+  name: default
+  apiGroup: ""
+roleRef:
+  kind: Role
+  name: namespace-reader
+  apiGroup: ""