團隊開發(fā)中，開發(fā)，測試，預發(fā)布，生產(chǎn)，不同的角色工作在不同的環(huán)境中，不同的環(huán)境有不同的作用(有些公司的環(huán)境更多，按照自己的交付流程設(shè)計)，當然不同的環(huán)境，配置也不能相同，特別生產(chǎn)數(shù)據(jù)是隔離的。那asp.net core怎么來對應(yīng)呢？

asp.net core為了支持不同的環(huán)境，可以把配置文件分為設(shè)置成appsettings.json,appsettings.Staging.json,appsettings.QA.json,appsettings.Development.json，配置文件中，可以放不同的配置項。

常見的不同環(huán)境配置項：

1、數(shù)據(jù)庫鏈接字符串

2、外接存存儲

3、三方接口url

4、本服務(wù)對外端口

5、區(qū)分不同環(huán)境的標準信息等

下面是三個環(huán)境的appsettings文件

Production：appsettings.json

{"urls": "https://*:5001;http://*:5000","Logging": {"LogLevel": {"Default": "Information","Microsoft": "Warning","Microsoft.Hosting.Lifetime": "Information"}},"ConnectionStrings": {"DefaultConnectionString": "server=123.1.1.1;database=ab_db;uid=sa;pwd=!fuzamimi20;"},"AllowedHosts": "*" }

?Staging：appsettings.Staging.json

{"urls": "https://*:7001;http://*:7000","Logging": {"LogLevel": {"Default": "Information","Microsoft": "Warning","Microsoft.Hosting.Lifetime": "Information"}},"ConnectionStrings": {"DefaultConnectionString": "server=123.1.1.2;database=ab_db;uid=sa;pwd=sa;"} }

Development：appsettings.Development.json

{"urls": "https://*:8001;http://*:8000","Logging": {"LogLevel": {"Default": "Information","Microsoft": "Warning","Microsoft.Hosting.Lifetime": "Information"}},"ConnectionStrings": {"DefaultConnectionString": "server=123.1.1.4;database=ab_db;uid=sa;pwd=sa;"} }

Development：appsettings.Development.json

{"urls": "https://*:9001;http://*:9000","Logging": {"LogLevel": {"Default": "Information","Microsoft": "Warning","Microsoft.Hosting.Lifetime": "Information"}},"ConnectionStrings": {"DefaultConnectionString": "server=123.1.1.3;database=ab_db;uid=sa;pwd=sa;"} }

在Visual Studio中，項目屬性下，可以查詢環(huán)境變量

對應(yīng)UI的配置文件在Properties下的launchSettings.json

{"iisSettings": {"windowsAuthentication": false,"anonymousAuthentication": true,"iisExpress": {"applicationUrl": "http://localhost:55263","sslPort": 44313}},"$schema": "http://json.schemastore.org/launchsettings.json","profiles": { "AspNetCoreEnvironment": {"commandName": "Project","launchBrowser": true,"launchUrl": "swagger","environmentVariables": {"ASPNETCORE_ENVIRONMENT": "Development"},"dotnetRunMessages": "true","applicationUrl": "https://localhost:9001;http://localhost:9000"}} }

對于Staging環(huán)境，如果使用DevOpt，可以在對應(yīng)工具中來配置Staging或Production環(huán)境變量

Jenkins

配置全局環(huán)境變量，來配置對應(yīng)asp.net core ASPNETCORE_ENVIRONMENT的運行時環(huán)境

dockerfile

ENV ASPNETCORE_ENVIRONMENT="Staging"

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