zoukankan      html  css  js  c++  java
  • OpenShift 4.1 演示

    功能演示主要包含三个方面.

    1. 管理控制台

    push镜像发布应用

    podman build -t mytomcat:slim .
    
    podman tag  localhost/mytomcat:slim default-route-openshift-image-registry.apps.cluster-d60b.sandbox509.opentlc.com/myproject/mytomcat:slim
    
    podman push default-route-openshift-image-registry.apps.cluster-d60b.sandbox509.opentlc.com/myproject/mytomcat:slim

    [root@clientvm 0 ~]# oc new-app mytomcat:slim --name=demo
    --> Found image ec32b2c (4 days old) in image stream "myproject/mytomcat" under tag "slim" for "mytomcat:slim"
    
        * This image will be deployed in deployment config "demo"
        * Port 8080/tcp will be load balanced by service "demo"
          * Other containers can access this service through the hostname "demo"
        * WARNING: Image "myproject/mytomcat:slim" runs as the 'root' user which may not be permitted by your cluster administrator
    
    --> Creating resources ...
        imagestreamtag.image.openshift.io "demo:slim" created
        deploymentconfig.apps.openshift.io "demo" created
        service "demo" created
    --> Success
        Application is not exposed. You can expose services to the outside world by executing one or more of the commands below:
         'oc expose svc/demo' 
        Run 'oc status' to view your app.

    [root@clientvm 0 ~]# oc expose svc/demo
    route.route.openshift.io/demo exposed
    
    [root@clientvm 1 ~]# oc get route
    NAME       HOST/PORT                                                     PATH   SERVICES   PORT       TERMINATION   WILDCARD
    demo       demo-myproject.apps.cluster-8447.sandbox452.opentlc.com              demo       8080-tcp                 None
    mytomcat   mytomcat-myproject.apps.cluster-8447.sandbox452.opentlc.com          mytomcat   8080-tcp                 None

    2. machine和machinesets

     

    部署一个cluster-autoscaler

    oc get deployments -n openshift-machine-api cluster-autoscaler-operator
    
    echo '
    ---
    apiVersion: "autoscaling.openshift.io/v1"
    kind: "ClusterAutoscaler"
    metadata:
      name: "default"
    spec:
      podPriorityThreshold: -10
      resourceLimits:
        maxNodesTotal: 12
      scaleDown:
        enabled: true
        delayAfterAdd: 10s
        delayAfterDelete: 10s
        delayAfterFailure: 10s' | oc create -f - -n openshift-machine-api
    
    
    oc get pod -n openshift-machine-api

     部署一个machineautoscaler

    for ms in cluster-8447-sd4tq-worker-ap-southeast-1c
    do
    echo "
    ---
    apiVersion: "autoscaling.openshift.io/v1beta1"
    kind: "MachineAutoscaler"
    metadata:
      name: autoscale-${ms}
      namespace: "openshift-machine-api"
    spec:
      minReplicas: 1
      maxReplicas: 5
      scaleTargetRef:
        apiVersion: machine.openshift.io/v1beta1
        kind: MachineSet
        name: ${ms}" >$HOME/autoscaler-${ms}.yaml
    done

    创建一个压力应用

    oc new-project work-queue
    
    echo '
    ---
    apiVersion: batch/v1
    kind: Job
    metadata:
      generateName: work-queue-
    spec:
      template:
        spec:
          containers:
          - name: work
            image: busybox
            command: ["sleep",  "300"]
            resources:
              requests:
                memory: 500Mi
                cpu: 500m
          restartPolicy: Never
          nodeSelector:
            failure-domain.beta.kubernetes.io/zone: ap-southeast-1c
      backoffLimit: 4
      completions: 50
      parallelism: 50' | oc create -f - -n work-queue

    监控machine和nodes的变化

    watch oc get machines -n openshift-machine-api
    
    watch oc get nodes

    3. Operator

    • 部署一个etcd Operator
    • 部署一个kafka Operator
  • 相关阅读:
    mysql中bigint、int、mediumint、smallint 和 tinyint的取值范围
    centos6.5下安装samba服务器与配置
    centos 6.5 安装图形界面【转】
    Linux 下添加用户,修改权限
    Linux下自动调整时间和时区与Internet时间同步
    C#下利用封包、拆包原理解决Socket粘包、半包问题(新手篇)
    Unity脚步之NetworkBehaviour下前进、后退、左右转向的简单移动
    Token 在 Ajax 请求头中,服务端过滤器跨域问题
    【游戏】【暗黑2】重置属性点和技能点
    ASCII
  • 原文地址:https://www.cnblogs.com/ericnie/p/11411514.html
Copyright © 2011-2022 走看看