KubeService

KubeService

A simple CRD controller for micro-service management.

What's KubeService

KubeService is a CRD controller build on KubeBuilder, and this define some CR in kubernetes like: App、MicroService for micro-service management easier .

The logical structure like:

Feature

Deploy management

User can define a App resource to manage multiple micro services, and use DeployVersion to making multiple versions coexist.

Load balancing configuration

User use define CurrentVersion make the current version provide services, and define Canary to Canary Deploy other versions.

Usage

install and run

Add CRD to kubernetes:

make install

run controller on local

make run

App Demo

apiVersion: app.o0w0o.cn/v1
kind: App
metadata:
  name: voting-sample
spec:
  microServices:
    - name: voting-web
      spec:
        loadBalance:
          service:
            name: voting-web
            spec:
              ports:
                - protocol: TCP
                  port: 80
                  targetPort: 80
          ingress:
            name: voting-web
            spec:
              rules:
                - host: voting.o0w0o.cn
                  http:
                    paths:
                      - path: /
                        backend:
                          serviceName: voting-web
                          servicePort: 80
        versions:
          - name: v1
            template:
              replicas: 2
              selector:
                matchLabels:
                  app: voting-web
              template:
                metadata:
                  labels:
                    app: voting-web
                spec:
                  containers:
                    - image: daocloud.io/w0v0w/voting-demo-voting:v1
                      name: voting-web
          - name: v2
            canary:
              weight: 30
            template:
              replicas: 1
              selector:
                matchLabels:
                  app: voting-web-for-kid
              template:
                metadata:
                  labels:
                    app: voting-web-for-kid
                spec:
                  containers:
                    - image: daocloud.io/w0v0w/voting-demo-voting:v2
                      name: voting-web-for-kid
        currentVersionName: v1
    - name: voting-result
      spec:
        loadBalance:
          service:
            name: voting-result
            spec:
              ports:
                - protocol: TCP
                  port: 80
                  targetPort: 80
          ingress:
            name: voting-result
            spec:
              rules:
                - host: result.voting.o0w0o.cn
                  http:
                    paths:
                      - path: /
                        backend:
                          serviceName: voting-result
                          servicePort: 80
        versions:
          - name: v1
            template:
              replicas: 1
              selector:
                matchLabels:
                  app: voting-result
              template:
                metadata:
                  labels:
                    app: voting-result
                spec:
                  containers:
                    - image: daocloud.io/w0v0w/voting-demo-result:v1
                      name: voting-result
        currentVersionName: v1

---

apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: redis
  name: redis
spec:
  replicas: 1
  selector:
    matchLabels:
      app: redis
  template:
    metadata:
      labels:
        app: redis
    spec:
      containers:
        - image: redis
          name: redis

---

apiVersion: v1
kind: Service
metadata:
  labels:
    app: redis
  name: redis
spec:
  ports:
    - port: 6379
      protocol: TCP
      targetPort: 6379
  selector:
    app: redis