K8S搭建Jenkins并通过ingress向外暴露服务

1. 创建完成后，需要修改本机hosts，添加 jenkins.xxx.com
2. 访问地址：http://jenkins.xxx.com:30080

创建Jenkins.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: jenkins 
  namespace: default
  labels:
    app: jenkins
spec:
  replicas: 1
  selector:
    matchLabels:
      app: jenkins
  template:
    metadata:
      labels:
        app: jenkins
    spec:
      nodeName: k8s-master #注：需要修改成你自己的nodeName
      terminationGracePeriodSeconds: 60
      #hostNetwork: true
      imagePullSecrets:
      - name: regcred
      containers:
      - name: jenkins
        image: jenkins/jenkins:jdk11
        securityContext:
          runAsUser: 0
        imagePullPolicy: IfNotPresent
        ports:
        - name: http
          containerPort: 8080 
          hostPort: 8080
        volumeMounts:
        - name: jenkins-home
          mountPath: /var/jenkins_home 
      volumes:
      - name: jenkins-home
        hostPath:
          path: /opt/common/jenkins/jenkins-data
---

apiVersion: v1
kind: Service
metadata:
  name: jenkins
  namespace: default
  labels:
    app: jenkins
spec:
  ports:
  - port: 8080
    name: jenkins
    targetPort: 8080
  selector:
    app: jenkins

创建mandatory.yaml

apiVersion: v1
kind: Namespace
metadata:
  name: ingress-nginx

---

apiVersion: apps/v1
kind: Deployment
metadata:
  name: default-http-backend
  labels:
    app.kubernetes.io/name: default-http-backend
    app.kubernetes.io/part-of: ingress-nginx
  namespace: ingress-nginx
spec:
  replicas: 1
  selector:
    matchLabels:
      app.kubernetes.io/name: default-http-backend
      app.kubernetes.io/part-of: ingress-nginx
  template:
    metadata:
      labels:
        app.kubernetes.io/name: default-http-backend
        app.kubernetes.io/part-of: ingress-nginx
    spec:
      nodeName: k8s-master
      terminationGracePeriodSeconds: 60
      containers:
        - name: default-http-backend
          # Any image is permissible as long as:
          # 1. It serves a 404 page at /
          # 2. It serves 200 on a /healthz endpoint
          image: registry