英文:
Dropwizard Environement variables
问题
我在寻找有关Dropwizard环境配置的好资源时遇到了问题，Dropwizard的手册对我帮助不大。
我尝试将我的jwtSecret保存在配置文件config.yml中，作为环境变量，以便即使我将代码开源，它也能保持机密性，如下所示：
jwtSecret: ${JWT_SECRET}
我阅读了手册，我知道我需要添加SubstitutingSourceProvider来成功地用我的环境变量替换配置。然而，我找不到保存环境变量的位置。Dropwizard是否有特定的位置来查找它，还是我需要在某个地方添加环境变量的路径？
英文:
I am having problems finding good resources for the dropwizard environment configuration, the manuals from dropwizard are not really helpful for me.
I am trying to save my jwtSecret in my configuration config.yml as a environment variable so it stays a secret even if I make my code open source as
jwtSecret: ${JWT_SECRET}
I have read the manuals and I know I need to add SubstitutingSourceProvider to successfully substitute the config with my environment variables. However I do not find where to save my environment variables. Is there a specific place where dropwizard finds it or do I need to add the path to the environment variables somewhere?
答案1
得分: 2
我并不完全确定您需要帮助的部分，但是添加环境变量涉及多个步骤。
首先，我们通过将其添加到应用程序的初始化函数中来启用此功能：
bootstrap.setConfigurationSourceProvider(new SubstitutingSourceProvider(bootstrap.getConfigurationSourceProvider(), new EnvironmentVariableSubstitutor(false)));
然后是 config.yml 文件：
jwtSecret: ${JWT_SECRET}
要在您的应用程序中访问该变量，您需要将以下内容添加到应用程序的配置类中：
private String jwtSecret;
// 还需要为其添加 getter 和 setter 方法
最后，您需要将 JWT_SECRET 变量添加到您的系统环境变量中。这取决于您使用的操作系统以及您是想临时设置还是永久设置。
英文:
I'm not entirely sure which part you need help with, but adding environmental variables touches many points.
First we enable this feature by adding it to the Application's initialize function:
bootstrap.setConfigurationSourceProvider(new SubstitutingSourceProvider(bootstrap.getConfigurationSourceProvider(), new EnvironmentVariableSubstitutor(false)));
Then there is the config.yml:
jwtSecret: ${JWT_SECRET}
To access the variable in your application, you need to add this to the Application's Configuration class:
private String jwtSecret;
(+ getter and setter for it)
And lastly you need to add the JWT_SECRET variable to your system environmental variables. This varies based on which operating system you are using and whether you want to set it temporarily or permanently.
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