kubernetes实战-配置中心（四）分环境使用apollo配置中心

要进行分环境，需要将现有实验环境进行拆分

portal服务，可以各个环境共用，但是apollo-adminservice和apollo-configservice必须要分开。

1、zk环境拆分为test和prod环境

添加dns解析：

# vi /var/named/od.com.zone

zk-test.od.com A 10.4.7.11

zk-prod.od.com A 10.4.7.12

2、namespace 分环境，创建test 和prod

# kubectl create ns test

# kubectl create ns prod

创建secret：

# kubectl create secret docker-registry harbor --docker-server=harbor.od.com --docker-username=harbor --docker-password=Harbor12345 -n test

# kubectl create secret docker-registry harbor --docker-server=harbor.od.com --docker-username=harbor --docker-password=Harbor12345 -n prod

3、数据库进行拆分，因实验资源有限，故使用分库的形式模拟分环境

修改数据库初始化脚本，分别创建ApolloConfigTestDB和ApolloConfigProdDB

修改数据库中eureka的地址，这里用到了两个新的域名，自行在bind9中添加解析

> update ApolloConfigProdDB.ServerConfig set ServerConfig.Value="http://config-prod.od.com/eureka" where ServerConfig.Key="eureka.service.url";

> grant INSERT,DELETE,UPDATE,SELECT on ApolloConfigProdDB.* to "apolloconfig"@"10.4.7.%" identified by "123456";

> update ApolloConfigTestDB.ServerConfig set ServerConfig.Value="http://config-test.od.com/eureka" where ServerConfig.Key="eureka.service.url";

> grant INSERT,DELETE,UPDATE,SELECT on ApolloConfigTestDB.* to "apolloconfig"@"10.4.7.%" identified by "123456";

修改portal数据，支持fat和pro环境：

> update ServerConfig set Value='fat,pro' where Id=1;

修改portal的cm资源配置清单：

# vi /data/k8s-yaml/apollo-portal/cm.yaml

# kubectl apply -f http://k8s-yaml.od.com/apollo-portal/cm.yaml

分别创建修改两个环境的资源配置文件：

test：

# cd /data/k8s-yaml

# mkdir -p test/{apollo-adminservice,apollo-configservice,dubbo-demo-server,dubbo-demo-consumer}

# mkdir -p prod/{apollo-adminservice,apollo-configservice,dubbo-demo-server,dubbo-demo-consumer}

将之前的资源配置清单cp到对应环境的目录中，进行修改：

# cd  test/apollo-configservice/

# cp ../../apollo-configservice/* ./

1、cm.yaml 修改ns，数据库库名，eureka地址

apiVersion: v1

kind: ConfigMap

metadata:

  name: apollo-configservice-cm

  namespace: test

data:

  application-github.properties: |

    # DataSource

    spring.datasource.url = jdbc:mysql://mysql.od.com:3306/ApolloConfigTestDB?characterEncoding=utf8

    spring.datasource.username = apolloconfig

    spring.datasource.password = 123456

    eureka.service.url = http://config-test.od.com/eureka

  app.properties: |

    appId=100003171

2、dp.yaml

kind: Deployment

apiVersion: extensions/v1beta1

metadata:

  name: apollo-configservice

  namespace: test

  labels:

    name: apollo-configservice

spec:

  replicas: 1

  selector:

    matchLabels:

      name: apollo-configservice

  template:

    metadata:

      labels:

        app: apollo-configservice

        name: apollo-configservice

    spec:

      volumes:

      - name: configmap-volume

        configMap:

          name: apollo-configservice-cm

      containers:

      - name: apollo-configservice

        image: harbor.od.com/infra/apollo-configservice:v1.5.1

        ports:

        - containerPort: 8080

          protocol: TCP

        volumeMounts:

        - name: configmap-volume

          mountPath: /apollo-configservice/config

        terminationMessagePath: /dev/termination-log

        terminationMessagePolicy: File

        imagePullPolicy: IfNotPresent

      imagePullSecrets:

      - name: harbor

      restartPolicy: Always

      terminationGracePeriodSeconds: 30

      securityContext:

        runAsUser: 0

      schedulerName: default-scheduler

  strategy:

    type: RollingUpdate

    rollingUpdate:

      maxUnavailable: 1

      maxSurge: 1

  revisionHistoryLimit: 7

  progressDeadlineSeconds: 600

3、svc.yaml

kind: Service

apiVersion: v1

metadata:

  name: apollo-configservice

  namespace: test

spec:

  ports:

  - protocol: TCP

    port: 8080

    targetPort: 8080

  selector:

    app: apollo-configservice

4、ingress.yaml

kind: Ingress

apiVersion: extensions/v1beta1

metadata:

  name: apollo-configservice

  namespace: test

spec:

  rules:

  - host: config-test.od.com

    http:

      paths:

      - path: /

        backend:

          serviceName: apollo-configservice

          servicePort: 8080

服务已经注册进来了

接下来部署apollo-adminservice

修改apollo-adminservice的资源配置清单：

# cd /data/k8s-yaml/test/apollo-adminservice

# cp ../../apollo-adminservice/* ./

1、cm.yaml

apiVersion: v1

kind: ConfigMap

metadata:

  name: apollo-adminservice-cm

  namespace: test

data:

  application-github.properties: |

    # DataSource

    spring.datasource.url = jdbc:mysql://mysql.od.com:3306/ApolloConfigTestDB?characterEncoding=utf8

    spring.datasource.username = apolloconfig

    spring.datasource.password = 123456

    eureka.service.url = http://config-test.od.com/eureka

  app.properties: |

    appId=100003172

2、dp.yaml

kind: Deployment

apiVersion: extensions/v1beta1

metadata:

  name: apollo-adminservice

  namespace: test

  labels:

    name: apollo-adminservice

spec:

  replicas: 1

  selector:

    matchLabels:

      name: apollo-adminservice

  template:

    metadata:

      labels:

        name: apollo-adminservice

    spec:

      volumes:

      - name: configmap-volume

        configMap:

          name: apollo-adminservice-cm

      containers:

      - name: apollo-adminservice

        image: harbor.od.com/infra/apollo-adminservice:v1.5.1

        ports:

        - containerPort: 8080

          protocol: TCP

        volumeMounts:

        - name: configmap-volume

          mountPath: /apollo-adminservice/config

        terminationMessagePath: /dev/termination-log

        terminationMessagePolicy: File

        imagePullPolicy: IfNotPresent

      imagePullSecrets:

      - name: harbor

      restartPolicy: Always

      terminationGracePeriodSeconds: 30

      securityContext:

        runAsUser: 0

      schedulerName: default-scheduler

  strategy:

    type: RollingUpdate

    rollingUpdate:

      maxUnavailable: 1

      maxSurge: 1

  revisionHistoryLimit: 7

  progressDeadlineSeconds: 600

应用资源配置清单：

# kubectl apply -f http://k8s-yaml.od.com/test/apollo-adminservice/cm.yaml

# kubectl apply -f http://k8s-yaml.od.com/test/apollo-adminservice/dp.yaml

接下来部署prod环境的apollo-configservice，还是一样的套路：

# cd ../../prod/apollo-configservice/

# cp ../../apollo-configservice/* ./

修改资源配置清单：

1、cm.yaml

apiVersion: v1

kind: ConfigMap

metadata:

  name: apollo-configservice-cm

  namespace: prod

data:

  application-github.properties: |

    # DataSource

    spring.datasource.url = jdbc:mysql://mysql.od.com:3306/ApolloConfigProdDB?characterEncoding=utf8

    spring.datasource.username = apolloconfig

    spring.datasource.password = 123456

    eureka.service.url = http://config-prod.od.com/eureka

  app.properties: |

    appId=100003171

2、dp.yaml

kind: Deployment

apiVersion: extensions/v1beta1

metadata:

  name: apollo-configservice

  namespace: prod

  labels:

    name: apollo-configservice

spec:

  replicas: 1

  selector:

    matchLabels:

      name: apollo-configservice

  template:

    metadata:

      labels:

        app: apollo-configservice

        name: apollo-configservice

    spec:

      volumes:

      - name: configmap-volume

        configMap:

          name: apollo-configservice-cm

      containers:

      - name: apollo-configservice

        image: harbor.od.com/infra/apollo-configservice:v1.5.1

        ports:

        - containerPort: 8080

          protocol: TCP

        volumeMounts:

        - name: configmap-volume

          mountPath: /apollo-configservice/config

        terminationMessagePath: /dev/termination-log

        terminationMessagePolicy: File

        imagePullPolicy: IfNotPresent

      imagePullSecrets:

      - name: harbor

      restartPolicy: Always

      terminationGracePeriodSeconds: 30

      securityContext:

        runAsUser: 0

      schedulerName: default-scheduler

  strategy:

    type: RollingUpdate

    rollingUpdate:

      maxUnavailable: 1

      maxSurge: 1

  revisionHistoryLimit: 7

  progressDeadlineSeconds: 600

3、svc.yaml

kind: Service

apiVersion: v1

metadata:

  name: apollo-configservice

  namespace: prod

spec:

  ports:

  - protocol: TCP

    port: 8080

    targetPort: 8080

  selector:

    app: apollo-configservice

4、ingress.yaml

kind: Ingress

apiVersion: extensions/v1beta1

metadata:

  name: apollo-configservice

  namespace: prod

spec:

  rules:

  - host: config-prod.od.com

    http:

      paths:

      - path: /

        backend:

          serviceName: apollo-configservice

          servicePort: 8080

应用资源配置清单：

# kubectl apply -f http://k8s-yaml.od.com/prod/apollo-configservice/cm.yaml

# kubectl apply -f http://k8s-yaml.od.com/prod/apollo-configservice/dp.yaml

# kubectl apply -f http://k8s-yaml.od.com/prod/apollo-configservice/svc.yaml

# kubectl apply -f http://k8s-yaml.od.com/prod/apollo-configservice/ingress.yaml

修改apollo-adminservice的资源配置清单：

# cd ../apollo-adminservice/

# cp ../../apollo-adminservice/* ./

1、cm.yaml

apiVersion: v1

kind: ConfigMap

metadata:

  name: apollo-adminservice-cm

  namespace: prod

data:

  application-github.properties: |

    # DataSource

    spring.datasource.url = jdbc:mysql://mysql.od.com:3306/ApolloConfigProdDB?characterEncoding=utf8

    spring.datasource.username = apolloconfig

    spring.datasource.password = 123456

    eureka.service.url = http://config-prod.od.com/eureka

  app.properties: |

    appId=100003172

2、dp.yaml

kind: Deployment

apiVersion: extensions/v1beta1

metadata:

  name: apollo-adminservice

  namespace: prod

  labels:

    name: apollo-adminservice

spec:

  replicas: 1

  selector:

    matchLabels:

      name: apollo-adminservice

  template:

    metadata:

      labels:

        name: apollo-adminservice

    spec:

      volumes:

      - name: configmap-volume

        configMap:

          name: apollo-adminservice-cm

      containers:

      - name: apollo-adminservice

        image: harbor.od.com/infra/apollo-adminservice:v1.5.1

        ports:

        - containerPort: 8080

          protocol: TCP

        volumeMounts:

        - name: configmap-volume

          mountPath: /apollo-adminservice/config

        terminationMessagePath: /dev/termination-log

        terminationMessagePolicy: File

        imagePullPolicy: IfNotPresent

      imagePullSecrets:

      - name: harbor

      restartPolicy: Always

      terminationGracePeriodSeconds: 30

      securityContext:

        runAsUser: 0

      schedulerName: default-scheduler

  strategy:

    type: RollingUpdate

    rollingUpdate:

      maxUnavailable: 1

      maxSurge: 1

  revisionHistoryLimit: 7

  progressDeadlineSeconds: 600

应用资源配置清单：

# kubectl apply -f http://k8s-yaml.od.com/prod/apollo-adminservice/cm.yaml

# kubectl apply -f http://k8s-yaml.od.com/prod/apollo-adminservice/dp.yaml

两个服务都已经注册进来了，删除portal数据库中存储的关于之前项目的配置，接下来启动portal项目：

# mysql -uroot -p

> use ApolloPortalDB ;

> truncate table App;

> truncate table AppNamespace;

打开portal.od.com验证，并且创建两个项目：

首先创建dubbo-demo-service

添加配置：两个环境都添加上：注意连接地址一个是test.od.com,一个是prod.od.com

接下来创建dubbo-demo-web项目：同样是两个环境都发布，注意一个是test.od.com,一个是prod.od.com

接下来交付dubbo服务分环境交付：

同样操作，修改之前项目的资源配置清单：

# cd /data/k8s-yaml/test/dubbo-demo-server

# cp ../../dubbo-server/* ./

1、dp.yaml

kind: Deployment

apiVersion: extensions/v1beta1

metadata:

  name: dubbo-demo-service

  namespace: test

  labels:

    name: dubbo-demo-service

spec:

  replicas: 1

  selector:

    matchLabels:

      name: dubbo-demo-service

  template:

    metadata:

      labels:

        app: dubbo-demo-service

        name: dubbo-demo-service

    spec:

      containers:

      - name: dubbo-demo-service

        image: harbor.od.com/app/dubbo-demo-service:apollo_191211_1916

        ports:

        - containerPort: 20880

          protocol: TCP

        env:

        - name: C_OPTS

          value: -Denv=fat -Dapollo.meta=http://config-test.od.com

        - name: JAR_BALL

          value: dubbo-server.jar

        imagePullPolicy: IfNotPresent

      imagePullSecrets:

      - name: harbor

      restartPolicy: Always

      terminationGracePeriodSeconds: 30

      securityContext:

        runAsUser: 0

      schedulerName: default-scheduler

  strategy:

    type: RollingUpdate

    rollingUpdate:

      maxUnavailable: 1

      maxSurge: 1

  revisionHistoryLimit: 7

  progressDeadlineSeconds: 600

应用资源配置清单：

# kubectl apply -f http://k8s-yaml.od.com/test/dubbo-demo-server/dp.yaml

接下来交付dubbo-demo-consumer:

# cd /data/k8s-yaml/test/dubbo-demo-consumer

# cp ../../dubbo-consumer/* ./

1、dp.yaml

kind: Deployment

apiVersion: extensions/v1beta1

metadata:

  name: dubbo-demo-consumer

  namespace: test

  labels:

    name: dubbo-demo-consumer

spec:

  replicas: 1

  selector:

    matchLabels:

      name: dubbo-demo-consumer

  template:

    metadata:

      labels:

        app: dubbo-demo-consumer

        name: dubbo-demo-consumer

    spec:

      containers:

      - name: dubbo-demo-consumer

        image: harbor.od.com/app/dubbo-demo-web:apollo_191212_1715

        ports:

        - containerPort: 8080

          protocol: TCP

        - containerPort: 20880

          protocol: TCP

        env:

        - name: C_OPTS

          value: -Denv=fat -Dapollo.meta=http://config-test.od.com

        - name: JAR_BALL

          value: dubbo-client.jar

        imagePullPolicy: IfNotPresent

      imagePullSecrets:

      - name: harbor

      restartPolicy: Always

      terminationGracePeriodSeconds: 30

      securityContext:

        runAsUser: 0

      schedulerName: default-scheduler

  strategy:

    type: RollingUpdate

    rollingUpdate:

      maxUnavailable: 1

      maxSurge: 1

  revisionHistoryLimit: 7

  progressDeadlineSeconds: 600

2、svc.yaml

kind: Service

apiVersion: v1

metadata:

  name: dubbo-demo-consumer

  namespace: test

spec:

  ports:

  - protocol: TCP

    port: 8080

    targetPort: 8080

  selector:

    app: dubbo-demo-consumer

3、ingress.yaml

kind: Ingress

apiVersion: extensions/v1beta1

metadata:

  name: dubbo-demo-consumer

  namespace: test

spec:

  rules:

  - host: demo-test.od.com

    http:

      paths:

      - path: /

        backend:

          serviceName: dubbo-demo-consumer

          servicePort: 8080

这里会用到两个新的域名，添加解析：

应用test环境的dubbo-consumer资源配置清单：

# kubectl apply -f http://k8s-yaml.od.com/test/dubbo-demo-consumer/dp.yaml

# kubectl apply -f http://k8s-yaml.od.com/test/dubbo-demo-consumer/svc.yaml

# kubectl apply -f http://k8s-yaml.od.com/test/dubbo-demo-consumer/ingress.yaml

接下来交付prod环境的dubbo-demo-server和dubbo-demo-consumer服务：

同样套路，复制资源配置清单，然后修改成prod环境：

cd /data/k8s-yaml/prod/dubbo-demo-server

# cp ../../dubbo-server/* ./

1、dp.yaml

kind: Deployment

apiVersion: extensions/v1beta1

metadata:

  name: dubbo-demo-service

  namespace: prod

  labels:

    name: dubbo-demo-service

spec:

  replicas: 1

  selector:

    matchLabels:

      name: dubbo-demo-service

  template:

    metadata:

      labels:

        app: dubbo-demo-service

        name: dubbo-demo-service

    spec:

      containers:

      - name: dubbo-demo-service

        image: harbor.od.com/app/dubbo-demo-service:apollo_191211_1916

        ports:

        - containerPort: 20880

          protocol: TCP

        env:

        - name: C_OPTS

          value: -Denv=pro -Dapollo.meta=http://config-prod.od.com

        - name: JAR_BALL

          value: dubbo-server.jar

        imagePullPolicy: IfNotPresent

      imagePullSecrets:

      - name: harbor

      restartPolicy: Always

      terminationGracePeriodSeconds: 30

      securityContext:

        runAsUser: 0

      schedulerName: default-scheduler

  strategy:

    type: RollingUpdate

    rollingUpdate:

      maxUnavailable: 1

      maxSurge: 1

  revisionHistoryLimit: 7

  progressDeadlineSeconds: 600

应用资源配置清单：

# kubectl apply -f http://k8s-yaml.od.com/prod/dubbo-demo-server/dp.yaml

接下来做dubbo-demo-consumer的资源配置清单：

# cd /data/k8s-yaml/prod/dubbo-demo-consumer

# cp ../../dubbo-consumer/* ./

1、dp.yaml http://apollo-configservice:8080 这里可以直接使用svc资源名称调用，不用走ingress，因为svc资源只在当前namespace中生效。

kind: Deployment

apiVersion: extensions/v1beta1

metadata:

  name: dubbo-demo-consumer

  namespace: prod

  labels:

    name: dubbo-demo-consumer

spec:

  replicas: 1

  selector:

    matchLabels:

      name: dubbo-demo-consumer

  template:

    metadata:

      labels:

        app: dubbo-demo-consumer

        name: dubbo-demo-consumer

    spec:

      containers:

      - name: dubbo-demo-consumer

        image: harbor.od.com/app/dubbo-demo-web:apollo_191212_1715

        ports:

        - containerPort: 8080

          protocol: TCP

        - containerPort: 20880

          protocol: TCP

        env:

        - name: C_OPTS

          value: -Denv=pro -Dapollo.meta=http://apollo-configservice:8080

        - name: JAR_BALL

          value: dubbo-client.jar

        imagePullPolicy: IfNotPresent

      imagePullSecrets:

      - name: harbor

      restartPolicy: Always

      terminationGracePeriodSeconds: 30

      securityContext:

        runAsUser: 0

      schedulerName: default-scheduler

  strategy:

    type: RollingUpdate

    rollingUpdate:

      maxUnavailable: 1

      maxSurge: 1

  revisionHistoryLimit: 7

  progressDeadlineSeconds: 600

2、svc.yaml

kind: Service

apiVersion: v1

metadata:

  name: dubbo-demo-consumer

  namespace: prod

spec:

  ports:

  - protocol: TCP

    port: 8080

    targetPort: 8080

  selector:

    app: dubbo-demo-consumer

3、ingress.yaml

kind: Service

apiVersion: v1

metadata:

  name: dubbo-demo-consumer

  namespace: prod

spec:

  ports:

  - protocol: TCP

    port: 8080

    targetPort: 8080

  selector:

    app: dubbo-demo-consumer

[root@hdss7-200 dubbo-demo-consumer]# cat ingress.yaml

kind: Ingress

apiVersion: extensions/v1beta1

metadata:

  name: dubbo-demo-consumer

  namespace: prod

spec:

  rules:

  - host: demo-prod.od.com

    http:

      paths:

      - path: /

        backend:

          serviceName: dubbo-demo-consumer

          servicePort: 8080

应用资源配置清单：

# kubectl apply -f http://k8s-yaml.od.com/prod/dubbo-demo-consumer/dp.yaml

# kubectl apply -f http://k8s-yaml.od.com/prod/dubbo-demo-consumer/svc.yaml

# kubectl apply -f http://k8s-yaml.od.com/prod/dubbo-demo-consumer/ingress.yaml

访问两个环境的不同url：

http://demo-test.od.com

http://demo-prod.od.com

模拟发版：

使用jenkins构建新的镜像：

构建成功，然后我们在测试环境发布此版本镜像：

修改测试环境的dp.yaml

应用修改后的资源配置清单：

# kubectl apply -f http://k8s-yaml.od.com/test/dubbo-demo-consumer/dp.yaml

已经成功将新代码上线到test环境，接下来上线到prod环境

同样修改prod环境的dp.yaml,并且应用该资源配置清单：

已经上线到生产环境，这样一套完整的分环境使用apollo配置中心发布流程已经可以使用了，并且真正做到了一次构建，多平台使用。

kubernetes实战-配置中心（四）分环境使用apollo配置中心的更多相关文章

kubernetes实战-配置中心（二）交付apollo配置中心到k8s
apollo官网:官方地址 apollo架构图: apollo需要使用数据库,这里使用mysql,注意版本需要在5.6以上: 本次环境mysql部署在10.4.7.11上,使用mariadb:10.1 ...
kubernetes实战之consul简单测试环境搭建及填坑
这一节内容有点长,我们将介绍如何基于docker搭建一client一server的consul测试环境,以及如何搭建多server consul测试集群.在基于docker搭建多server的cons ...
K8S(12)配置中心实战-多环境交付apollo三组件
k8s配置中心实战-多环境交付apollo三组件目录 k8s配置中心实战-多环境交付apollo三组件 1.环境准备工作 1.1 zk环境拆分 1.2 namespace分环境 1.3 数据库拆分 ...
【第十四章】 springboot + profile（不同环境读取不同配置）
具体做法: 不同环境的配置设置一个配置文件,例如:dev环境下的配置配置在application-dev.properties中:prod环境下的配置配置在application-prod.prope ...
第十四章 springboot + profile（不同环境读取不同配置）
具体做法: 不同环境的配置设置一个配置文件,例如:dev环境下的配置配置在application-dev.properties中:prod环境下的配置配置在application-prod.prope ...
kubernetes实战(二十九)：Kubernetes RBAC实现不同用户在不同Namespace的不同权限
1.基本说明在生产环境使用k8s以后,大部分应用都实现了高可用,不仅降低了维护成本,也简化了很多应用的部署成本,但是同时也带来了诸多问题.比如开发可能需要查看自己的应用状态.连接信息.日志.执行命令 ...
Redis高可用集群-哨兵模式（Redis-Sentinel）搭建配置教程【Windows环境】
No cross,no crown . 不经历风雨,怎么见彩虹. Redis哨兵模式,用现在流行的话可以说就是一个"哨兵机器人",给"哨兵机器人"进行相应的配置 ...
apollo配置中心初探
近在搞微服务框架的开发,需要有一个配置中心来满足统一管理业务应用以及组件的配置,在此期间也使用了多个配置中心比如:spring cloud config,自研的配置中心,当然还有apollo. spr ...
GO学习-(3) VS Code配置Go语言开发环境
VS Code配置Go语言开发环境 VS Code配置Go语言开发环境说在前面的话,Go语言是采用UTF8编码的,理论上使用任何文本编辑器都能做Go语言开发.大家可以根据自己的喜好自行选择.编辑器/ ...

随机推荐

Test typora
目录 0. test 0.5 easy test 1. problem 1 2. problem 2 3. problem 3 import numpy as np import matplotlib ...
oracle绑定变量测试及性能对比
1.创建测试数据 2.查看cursor_sharing的值 SQL> show parameter cursor_sharing; NAME TYPE VALUE --------------- ...
D2Admin 登录用户重新初始话右侧菜单
背景最近用到D2Admin开发项目,用户登录菜单要根据用户角色权限获取,但是又不想用官网的方案(vue基于d2-admin的RBAC权限管理解决方案),所以自己加了个只修改 menuAside的方案 ...
PAT Advanced 1004 Counting Leaves
题目与翻译 1004 Counting Leaves 数树叶 (30分) A family hierarchy is usually presented by a pedigree tree. You ...
Jmeter非GUI界面对阿里云服务器压测
一.Jmeter非GUI界面参数讲解讲解:非GUI界面,压测参数讲解 -h 帮助 -n 非GUI模式 -t 指定要运行的 JMe ...
httpd反向代理实践（二）
div.example { background-color: rgba(229, 236, 243, 1); color: rgba(0, 0, 0, 1); padding: 0.5em; mar ...
js控制页面元素值
// TODO id 定位 var ele1 = document.getElementById("test1"); // alert(ele1.value) // TODO 根据 ...
Elasticsearch--ES-Head--docker版安装
1.0ElasticSearch安装 # 拉取ES镜像docker pull elasticsearch:6.5.0 # 设置vm.max_map_count大小sysctl -w vm.max_ma ...
CF1428C
Description 有一个只包含'A'与'B'的字符串,每次可以消掉一个 "AB" 或一个 "BB",并把剩下的拼在一起,求字符串最短的长度. 题意已经够简 ...
python学习：随机数的产生，随机数拼接字在脚本中的应用
学习random的时候,看到一份表格觉得不错,转载记录到自己的笔记中: random以及它们在numpy.random中对应的函数应该会很有帮助: 注意:NumPy专门用于构建和操作大型多维数组.如果 ...

kubernetes实战-配置中心（四）分环境使用apollo配置中心

kubernetes实战-配置中心（四）分环境使用apollo配置中心的更多相关文章

随机推荐

热门专题