高可用 Keycloak,K8s

高可用 Keycloak,K8s

使用 K8S 部署 Keycloak,使用 Mysql 做为外部存储工具。以实现 Keycloak 在生产环境中高可用。

Keycloak K8s 配置文件

Keycloak 官方有一个 Keycloak on Kubernetes 教程,可以看出官方教程只是简单的说了如何通过 K8s 部署服务。

修改官方提供的 yaml 文件

apiVersion: v1
kind: Service
metadata:
  name: keycloak
  labels:
    app: keycloak
spec:
  ports:
  - name: http
    port: 8080
    targetPort: 8080
  selector:
    app: keycloak
  type: LoadBalancer
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: keycloak
  namespace: default
  labels:
    app: keycloak
spec:
  replicas: 1
  selector:
    matchLabels:
      app: keycloak
  template:
    metadata:
      labels:
        app: keycloak
    spec:
      containers:
      - name: keycloak
        image: quay.io/keycloak/keycloak:13.0.0
        env:
        - name: KEYCLOAK_USER
          value: "admin"
        - name: KEYCLOAK_PASSWORD
          value: "admin"
        - name: PROXY_ADDRESS_FORWARDING
          value: "true"
        ports:
        - name: http
          containerPort: 8080
        - name: https
          containerPort: 8443
        readinessProbe:
          httpGet:
            path: /auth/realms/master
            port: 8080
  1. 修改镜像地址,原因是该镜像有较为清晰的文档

     image: jboss/keycloak:13.0.0
    
  2. 配置 Mysql 变量,在创建 keycloak Mysql 数据库时,注意,创建的数据库编码应为 utf8create schema keycloak character set utf8 collate utf8_unicode_ci;

     - name: DB_VENDOR
       value: mysql
     - name: DB_ADDR
       value: 10.0.5.213:3306
     - name: DB_DATABASE
       value: keycloak
     - name: DB_USER
       value: root
     - name: DB_PASSWORD
       value: 12345678
    

    改造后的 yaml 文件为:

     apiVersion: v1
     kind: Service
     metadata:
     name: keycloak
     labels:
         app: keycloak
     spec:
     ports:
     - name: http
         port: 8080
         targetPort: 8080
     selector:
         app: keycloak
     type: LoadBalancer
     ---
     apiVersion: apps/v1
     kind: Deployment
     metadata:
     name: keycloak
     labels:
         app: keycloak
     spec:
     replicas: 2
     selector:
         matchLabels:
         app: keycloak
     template:
         metadata:
         labels:
             app: keycloak
         spec:
         containers:
         - name: keycloak
             image: jboss/keycloak:13.0.0
             env:
             - name: KEYCLOAK_USER
             value: "admin"
             - name: KEYCLOAK_PASSWORD
             value: "admin"
             - name: PROXY_ADDRESS_FORWARDING
             value: "true"
             - name: DB_VENDOR
             value: mysql
             - name: DB_ADDR
             value: "127.0.0.1"
             - name: DB_PORT
             value: "3306"
             - name: DB_DATABASE
             value: keycloak
             - name: DB_USER
             value: "root"
             - name: DB_PASSWORD
             value: "123456"
             ports:
             - name: http
             containerPort: 8080
             - name: https
             containerPort: 8443
             readinessProbe:
             httpGet:
                 path: /auth/realms/master
                 port: 8080
    
  3. 把 yaml 文件复制到服务器中,然后创建 kc 空间,命令如下 kubectl create ns kc,执行命令 kubectl apply -f keycloak.yaml -n kc以启动服务

  4. 访问 Keycloak 服务,127.0.0.1:8080

    点击 Administration Console,使用账号 admin、密码 admin登录

posted @ 2021-05-19 17:10  Zhang_Xiang  阅读(1655)  评论(0编辑  收藏  举报