云代工厂复制从一个应用程序到另一个应用程序

Question

Cloud Foundry是否可以在执行蓝绿色部署时将丢失的路由从一个应用程序复制到另一个应用程序？

我有一个手动添加路线的应用程序,同时进行蓝绿色部署(通过脚本自动化)我想将丢失/手动添加的路由复制到新的应用程序.可能吗？

脚本:

#!/bin/bash

path="C:/Users/.../Desktop/cf_through_sh/appName.jar"

spaceName="development"
appBlue="appName"
appGreen="${appName}-dev"
manifestFile="C:/Users/.../Desktop/cf_through_sh/manifest-dev.yml"
domains=("domain1.com" "domain2.com")
appHosts=("host-v1" "host-v2")

evaluate_return_code (){
  ret=$1
  if [[ $ret != 0 ]]
  then
    exit $ret
  fi
}

switch_to_target_space() {
    space="development"
    echo "Change space to ${space}"
    cf t -s ${space}
    evaluate_return_code $?
}

push_new_release() {
    appGreen=$1
    if [ ! -f "${manifestFile}" ]; then
        echo "Missing manifest: ${manifestFile}";
        exit 1;
    fi

    if [ ! -f "${path}" ]; then
        echo "Missing artifact: ${path}";
        exit 1;
    fi
    echo "Deploying ${path} as ${appGreen}"
    cf push ${appGreen} -f ${manifestFile} -p ${path} --no-route
    evaluate_return_code $?
}

map_routes() {
    app=$1
    domains=$2
    shift
    appHosts=$3

    for  host in  ${appHosts[*]}; do
        echo "Mapping ${host} to ${app}"
        for  domain in  ${domains[*]}; do
            cf map-route ${app} ${domain} -n ${host}
            evaluate_return_code $?
        done
    done
}


unmap_routes() {
    app=$1
    domains=$2
    shift
    appHosts=$3

    for  host in  ${appHosts[*]}; do
        echo "Unmapping ${host} from ${app}"
        for  domain in  ${domains[*]}; do
            cf unmap-route ${app} ${domain} -n ${host}
        evaluate_return_code $?
        done
    done
}

rename_app() {
    oldName=$1
    newName=$2
    echo "Renaming ${oldName} to ${newName}"
    cf rename ${oldName} ${newName}
    evaluate_return_code $?
}

switch_names() {
    appBlue=$1
    appGreen=$2
    appTemp="${appBlue}-old"
    rename_app ${appBlue} ${appTemp}
    rename_app ${appGreen} ${appBlue}
    rename_app ${appTemp} ${appGreen}
}

stop_old_release() {
    echo "Stopping old ${appGreen} app"
    cf stop ${appGreen}
    evaluate_return_code $?
}

switch_to_target_space ${spaceName}
push_new_release ${appGreen}
map_routes ${appGreen} ${domains[*]} ${appHosts[*]}
unmap_routes ${appBlue} ${domains[*]} ${appHosts[*]}
switch_names ${appBlue} ${appGreen}
stop_old_release

echo "DONE"
exit 0;

例如:appblue有5个roues

 1. host-v1.domain1.com
 2. host-v2.domain1.com
 3. host-v1.domain2.com
 4. host-v2.domain2.com
 5. manual-add.domain1.com //manually added route through admin UI

通过脚本应用程序进行蓝绿色部署后仅包含4条路由

 1. host-v1.domain1.com
 2. host-v2.domain1.com
 3. host-v1.domain2.com
 4. host-v2.domain2.com

如何复制丢失的第5条路线？我不想 从脚本中传递主机手动添加,因为它是手动添加的.

通常,如果没有映射,是否可以将路径从一个应用程序复制到另一个应用程序？

Answer 1

这只能通过 Jenkins（或任何 CI-CD 工具）来完成。在我们的例子中我们所做的是，我们有一个CF-Manifest-Template.ymlandCF-Manifest-settings.json我们有一个 gradle 任务，它将应用 JSON 中的设置并填充 Manifest-temple 并生成cf-manifest-generated.yml

gradle 文件将有一个任务，通过使用生成的清单文件进行蓝绿部署，并且所有路由都将硬编码在清单文件中。这是执行此操作的标准方法。

但是，如果您想从 Cloud Foundry 中运行的应用程序复制路由并将这些路由复制到另一个应用程序，那么您需要编写一个REST Client连接到 Cloud FoundryCloudController并获取所有路由App-A，然后创建到的路由APP-B

这很简单！

编写一个执行此命令的 REST 客户端

cf 应用程序 APP-A

这将以 JSON 响应的形式返回 APP-A 的详细信息。响应将具有这些参数

Showing health and status for app APP-A in org Org-A / space DEV as arun2381985@yahoo.com...

name:              APP-A
requested state:   started
instances:         1/1
usage:             1G x 1 instances
routes:            ********
last uploaded:     Sat 25 Aug 00:25:45 IST 2018
stack:             cflinuxfs2
buildpack:         java_buildpack

阅读此 JSON 响应并收集 APP-A 的路由，然后将其映射到 APP-B .. 这非常简单