Kubernetes上的Backstage

configs:
  cm:
    accounts.backstage: apiKey,login
  rbac:
    policy.csv: |
      p, backstage, applications, *, */*, allow

apiVersion: v1
kind: Secret
metadata:
  name: default-token
  namespace: default
annotations:
  kubernetes.io/service-account.name: default
type: kubernetes.io/service-account-token

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: default-admin
subjects:
- kind: ServiceAccount
  name: default
  namespace: default
roleRef:
  kind: ClusterRole
  name: cluster-admin
  apiGroup: rbac.authorization.k8s.io

apiVersion: skaffold/v4beta5
kind: Config
metadata:
  name: ${{ values.appName }}
build:
  artifacts:
  - image: ${{ values.orgName }}/${{ values.appName }}
  jib:
    args:
    - -Pjib
    - -DskipTests
manifests:
  rawYaml:
  - k8s/deployment.yaml
deploy:
  kubectl: {}

apiVersion: apps/v1
kind: Deployment
metadata:
  name: ${{ values.appName }}
spec:
  selector:
    matchLabels:
      app: ${{ values.appName }}
  template:
    metadata:
      annotations:
        prometheus.io/path: /actuator/prometheus
        prometheus.io/scrape: "true"
        prometheus.io/port: "8080"
      labels:
        app: ${{ values.appName }}
    spec:
      containers:
      - name: ${{ values.appName }}
        image: ${{ values.orgName }}/${{ values.appName }}
        ports:
        - containerPort: 8080
        readinessProbe:
          httpGet:
            port: 8080
            path: /actuator/health/readiness
            scheme: HTTP
          timeoutSeconds: 1
          periodSeconds: 10
          successThreshold: 1
          failureThreshold: 3
        resources:
          limits:
            memory: 1024Mi
---
apiVersion: v1
kind: Service
metadata:
  name: ${{ values.appName }}
spec:
  type: NodePort
  selector:
    app: ${{ values.appName }}
  ports:
  - port: 8080
    nodePort: 30000

version: 2.1

jobs:
  analyze:
    docker:
      - image: 'cimg/openjdk:21.0.2'
    steps:
      - checkout
      - run:
          name: Analyze on SonarCloud
          command: mvn verify sonar:sonar -DskipTests
  test:
    executor: machine_executor_amd64
    steps:
      - checkout
      - run:
          name: Install OpenJDK 21
          command: |
            java -version
            sudo apt-get update && sudo apt-get install openjdk-21-jdk
            sudo update-alternatives --set java /usr/lib/jvm/java-21-openjdk-amd64/bin/java
            sudo update-alternatives --set javac /usr/lib/jvm/java-21-openjdk-amd64/bin/javac
            java -version
            export JAVA_HOME=/usr/lib/jvm/java-21-openjdk-amd64
      - run:
          name: Maven Tests
          command: mvn test
  deploy-k8s:
    executor: machine_executor_amd64
    steps:
      - checkout
      - run:
          name: Install Kubectl
          command: |
            curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
            chmod +x kubectl
            sudo mv ./kubectl /usr/local/bin/kubectl
      - run:
          name: Install Skaffold
          command: |
            curl -Lo skaffold https://storage.googleapis.com/skaffold/releases/latest/skaffold-linux-amd64
            chmod +x skaffold
            sudo mv skaffold /usr/local/bin
      - run:
          name: Install Kind
          command: |
            [ $(uname -m) = x86_64 ] && curl -Lo ./kind https://kind.sigs.k8s.io/dl/v0.20.0/kind-linux-amd64
            chmod +x ./kind
            sudo mv ./kind /usr/local/bin/kind
      - run:
          name: Install OpenJDK 21
          command: |
            java -version
            sudo apt-get update && sudo apt-get install openjdk-21-jdk
            sudo update-alternatives --set java /usr/lib/jvm/java-21-openjdk-amd64/bin/java
            sudo update-alternatives --set javac /usr/lib/jvm/java-21-openjdk-amd64/bin/javac
            java -version
            export JAVA_HOME=/usr/lib/jvm/java-21-openjdk-amd64
      - run:
          name: Create Kind Cluster
          command: |
            kind create cluster --name c1 --config k8s/kind-cluster-test.yaml
      - run:
          name: Deploy to K8s
          command: |
            export JAVA_HOME=/usr/lib/jvm/java-21-openjdk-amd64
            skaffold run
      - run:
          name: Delete Kind Cluster
          command: |
            kind delete cluster --name c1
  image-push:
    docker:
      - image: 'cimg/openjdk:21.0.2'
    steps:
      - checkout
      - run:
          name: Build and push image to DockerHub
          command: mvn compile jib:build -Pjib -Djib.to.image=${{ values.orgName }}/${{ values.appName }}:latest -Djib.to.auth.username=${DOCKER_LOGIN} -Djib.to.auth.password=${DOCKER_PASSWORD} -DskipTests

executors:
  machine_executor_amd64:
    machine:
      image: ubuntu-2204:2023.10.1
    environment:
      architecture: "amd64"
      platform: "linux/amd64"

workflows:
  maven_test:
    jobs:
      - test
      - analyze:
          context: SonarCloud
      - deploy-k8s:
          requires:
            - test
      - image-push:
          context: Docker
          requires:
            - deploy-k8s

apiVersion: scaffolder.backstage.io/v1beta3
kind: Template
metadata:
  name: spring-boot-basic-on-kubernetes-template
  title: Create a Spring Boot app for Kubernetes
  description: Create a Spring Boot app for Kubernetes
  tags:
    - spring-boot
    - java
    - maven
    - circleci
    - renovate
    - sonarqube
    - kubernetes
    - argocd
spec:
  owner: piomin
  system: microservices
  type: service

  parameters:
    - title: Provide information about the new component
      required:
        - orgName
        - appName
        - domainName
        - repoBranchName
        - groupId
        - javaPackage
        - apiPath
        - namespace
        - description
      properties:
        orgName:
          title: Organization name
          type: string
          default: piomin
        appName:
          title: App name
          type: string
          default: sample-spring-boot-app-k8s
        domainName:
          title: Name of the domain object
          type: string
          default: Person
        repoBranchName:
          title: Name of the branch in the Git repository
          type: string
          default: master
        groupId:
          title: Maven Group ID
          type: string
          default: pl.piomin.services
        javaPackage:
          title: Java package directory
          type: string
          default: pl/piomin/services
        apiPath:
          title: REST API path
          type: string
          default: /api/v1
        # (1)
        namespace:
          title: The target namespace on Kubernetes
          type: string
          default: demo
        description:
          title: Description
          type: string
          default: Spring Boot App Generated by Backstage
  steps:
    - id: sourceCodeTemplate
      name: Generating the Source Code Component
      action: fetch:template
      input:
        url: ./skeleton
        values:
          orgName: ${{ parameters.orgName }}
          appName: ${{ parameters.appName }}
          domainName: ${{ parameters.domainName }}
          groupId: ${{ parameters.groupId }}
          javaPackage: ${{ parameters.javaPackage }}
          apiPath: ${{ parameters.apiPath }}

    - id: publish
      name: Publishing to the Source Code Repository
      action: publish:github
      input:
        allowedHosts: ['github.com']
        description: ${{ parameters.description }}
        repoUrl: github.com?owner=${{ parameters.orgName }}&repo=${{ parameters.appName }}
        defaultBranch: ${{ parameters.repoBranchName }}
        repoVisibility: public

    - id: register
      name: Registering the Catalog Info Component
      action: catalog:register
      input:
        repoContentsUrl: ${{ steps.publish.output.repoContentsUrl }}
        catalogInfoPath: /catalog-info.yaml

    # (2)
    - id: configCodeTemplate
      name: Generating the Config Code Component
      action: fetch:template
      input:
        url: ../../skeletons/argocd
        values:
          orgName: ${{ parameters.orgName }}
          appName: ${{ parameters.appName }}
        targetPath: ./gitops

    # (3)
    - id: publish
      name: Publishing to the Config Code Repository
      action: publish:github
      input:
        allowedHosts: ['github.com']
        description: ${{ parameters.description }}
        repoUrl: github.com?owner=${{ parameters.orgName }}&repo=${{ parameters.appName }}-config
        defaultBranch: ${{ parameters.repoBranchName }}
        sourcePath: ./gitops
        repoVisibility: public

    # (4)
    - id: sonarqube
      name: Follow new project on Sonarcloud
      action: http:backstage:request
      input:
        method: 'POST'
        path: '/proxy/sonarqube/projects/create?name=${{ parameters.appName }}&organization=${{ parameters.orgName }}&project=${{ parameters.orgName }}_${{ parameters.appName }}'
        headers:
          content-type: 'application/json'

    # (5)
    - id: circleci
      name: Follow new project on CircleCI
      action: http:backstage:request
      input:
        method: 'POST'
        path: '/proxy/circleci/api/project/gh/${{ parameters.orgName }}/${{ parameters.appName }}/follow'
        headers:
          content-type: 'application/json'

    # (6)
    - id: argocd
      name: Create New Application in Argo CD
      action: http:backstage:request
      input:
        method: 'POST'
        path: '/proxy/argocd/api/applications'
        headers:
          content-type: 'application/json'
        body:
          metadata:
            name: ${{ parameters.appName }}
            namespace: argocd
          spec:
            project: default
            source:
              # (7)
              repoURL: https://github.com/${{ parameters.orgName }}/${{ parameters.appName }}-config.git
              targetRevision: master
              path: manifests
            destination:
              server: https://kubernetes.default.svc
              namespace: ${{ parameters.namespace }}
            syncPolicy:
              automated:
                prune: true
                selfHeal: true
              syncOptions:
                - CreateNamespace=true

  output:
    links:
      - title: Open the Source Code Repository
        url: ${{ steps.publish.output.remoteUrl }}
      - title: Open the Catalog Info Component
        icon: catalog
        entityRef: ${{ steps.register.output.entityRef }}

apiVersion: backstage.io/v1alpha1
kind: Component
metadata:
  name: ${{ values.appName }}
  title: ${{ values.appName }}
  annotations:
    circleci.com/project-slug: github/${{ values.orgName }}/${{ values.appName }}
    github.com/project-slug: ${{ values.orgName }}/${{ values.appName }}
    sonarqube.org/project-key: ${{ values.orgName }}_${{ values.appName }}
    backstage.io/kubernetes-id: ${{ values.appName }}
    argocd/app-name: ${{ values.appName }}
    prometheus.io/rule: container_memory_usage_bytes{pod=~"${{ values.appName }}-.*"}|pod,rate(container_cpu_usage_seconds_total{pod=~"${{ values.appName }}-.*"}[5m])|pod
  tags:
    - spring-boot
    - java
    - maven
    - circleci
    - renovate
    - sonarqube
spec:
  type: service
  owner: piotr.minkowski@gmail.com
  lifecycle: experimental

app:
  title: Scaffolded Backstage App
  baseUrl: http://localhost:3000

organization:
  name: piomin

backend:
  baseUrl: http://localhost:7007
  listen:
    port: 7007
  csp:
    connect-src: ["'self'", 'http:', 'https:']
  cors:
    origin: http://localhost:3000
    methods: [GET, HEAD, PATCH, POST, PUT, DELETE]
    credentials: true
  database:
    client: better-sqlite3
    connection: ':memory:'

integrations:
  github:
    - host: github.com
      token: ${GITHUB_TOKEN}

proxy:
  # (1)
  '/circleci/api':
    target: https://circleci.com/api/v1.1
    headers:
      Circle-Token: ${CIRCLECI_TOKEN}
  # (2)
  '/sonarqube':
    target: https://sonarcloud.io/api
    allowedMethods: [ 'GET', 'POST' ]
    auth: "${SONARCLOUD_TOKEN}:"
  # (3)
  '/argocd/api':
    target: https://localhost:8443/api/v1/
    changeOrigin: true
    secure: false
    headers:
      Cookie:
        $env: ARGOCD_TOKEN
  # (4)
  '/prometheus/api':
    target: http://localhost:9090/api/v1/

auth:
  providers:
    guest: {}

catalog:
  import:
    entityFilename: catalog-info.yaml
    pullRequestBranchName: backstage-integration
  rules:
    - allow: [Component, System, API, Resource, Location]
  locations:
    - type: file
      target: ../../examples/entities.yaml

    - type: file
      target: ../../examples/template/template.yaml
      rules:
        - allow: [Template]
    
    # (5)
    - type: url
      target: https://github.com/piomin/backstage-templates/blob/master/templates/spring-boot-basic-on-kubernetes/template.yaml
      rules:
        - allow: [ Template ]

    - type: file
      target: ../../examples/org.yaml
      rules:
        - allow: [User, Group]


sonarqube:
  baseUrl: https://sonarcloud.io
  apiKey: ${SONARCLOUD_TOKEN}

# (6)
kubernetes:
  serviceLocatorMethod:
    type: 'multiTenant'
  clusterLocatorMethods:
    - type: 'config'
      clusters:
        - url: ${K8S_URL}
          name: minikube
          authProvider: 'serviceAccount'
          skipTLSVerify: false
          skipMetricsLookup: true
          serviceAccountToken: ${K8S_TOKEN}
          dashboardApp: standard
          caFile: '/Users/pminkows/.minikube/ca.crt'

backstage:
  extraEnvVars:
    - name: NODE_ENV
      value: development
    - name: GITHUB_TOKEN
      value: ${GITHUB_TOKEN}
    - name: SONARCLOUD_TOKEN
      value: ${SONARCLOUD_TOKEN}
    - name: CIRCLECI_TOKEN
      value: ${CIRCLECI_TOKEN}
    - name: ARGOCD_TOKEN
      value: ${ARGOCD_TOKEN}
  image:
    registry: docker.io
    repository: piomin/backstage
  extraAppConfig:
    - filename: app-config.extra.yaml
      configMapRef: my-app-config
postgresql:
  enabled: false

proxy:
  .
  '/argocd/api':
    target: https://argo-cd-argocd-server.argocd.svc/api/v1/
    changeOrigin: true
    secure: false
    headers:
      Cookie:
        $env: ARGOCD_TOKEN
  '/prometheus/api':
    target: http://kube-prometheus-stack-prometheus.monitoring.svc:9090/api/v1/

catalog:
  locations:
    ...
    - type: url
      target: https://github.com/piomin/backstage-templates/blob/master/templates/spring-boot-basic-on-kubernetes/template.yaml
      rules:
        - allow: [ Template ]
            
kubernetes:
  serviceLocatorMethod:
    type: 'multiTenant'
  clusterLocatorMethods:
    - type: 'config'
      clusters:
        - url: https://kubernetes.default.svc
          name: minikube
          authProvider: 'serviceAccount'
          skipTLSVerify: false
          skipMetricsLookup: true

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: default-admin
subjects:
- kind: ServiceAccount
  name: default
  namespace: backstage
roleRef:
  kind: ClusterRole
  name: cluster-admin
  apiGroup: rbac.authorization.k8s.io