environment-variables

问题 The getenv() always returns false. I am using Symfony dotenv library and loading my variables from a .env file in the root of my project. use Symfony\Component\Dotenv\Dotenv; use Symfony\Component\Dotenv\Exception\PathException; if (!getenv('APP_ENV')) { try { (new Dotenv())->load(__DIR__ . '/../.env'); } catch (PathException $ex) { echo $ex->getMessage(); exit(1); } } var_dump(getenv('APP_ENV')); // bool(false) But when I dump the super global I can see my variables var_dump($_ENV); // array

问题 I'd like to use dotenv files to configure my Spring Boot application. What is the best way to do this? In Ruby or Node world, I just creating .env file and it loads all stuff from there to application environment. I don't like to create separate profiles for my app etc. I just want to load any environment variables I specified in file into my app. 回答1: I have built a proper integration between Spring and dotenv. Follow this thread to understand the motivation. And then review the library:

问题 I'd like to use dotenv files to configure my Spring Boot application. What is the best way to do this? In Ruby or Node world, I just creating .env file and it loads all stuff from there to application environment. I don't like to create separate profiles for my app etc. I just want to load any environment variables I specified in file into my app. 回答1: I have built a proper integration between Spring and dotenv. Follow this thread to understand the motivation. And then review the library:

问题 I'd like to use dotenv files to configure my Spring Boot application. What is the best way to do this? In Ruby or Node world, I just creating .env file and it loads all stuff from there to application environment. I don't like to create separate profiles for my app etc. I just want to load any environment variables I specified in file into my app. 回答1: I have built a proper integration between Spring and dotenv. Follow this thread to understand the motivation. And then review the library:

问题 Is it possible to inject/change the current enviroment variables in an already loaded and started NodeJS process? Exposing an Interface within the application is not an option, restarting is also not a valid option. The process is running inside a docker container, requiring a specific NodeJS Version is possible. EDIT: The change must be done from outside the application source so doing process.env.ENV_VAR = "new env" is not possible. 回答1: It isn't possible to modify the env vars of a running

问题 According to the CMake documentation https://cmake.org/cmake/help/v3.3/command/set.html One can do set(ENV{<variable>} <value>) but this gives the result set(ENV{FOO} foo) message("variable is $ENV{FOO}") at configure time variable is foo But at Linux command echo $FOO the variable is not set. EDIT: Here's a partial solution to the problem, which was to set $PATH , so that a user has CMAKE_INSTALL_PREFIX listed first set(file_sh ${CMAKE_CURRENT_BINARY_DIR}/path.sh) set(path "${CMAKE_INSTALL

问题 According to the CMake documentation https://cmake.org/cmake/help/v3.3/command/set.html One can do set(ENV{<variable>} <value>) but this gives the result set(ENV{FOO} foo) message("variable is $ENV{FOO}") at configure time variable is foo But at Linux command echo $FOO the variable is not set. EDIT: Here's a partial solution to the problem, which was to set $PATH , so that a user has CMAKE_INSTALL_PREFIX listed first set(file_sh ${CMAKE_CURRENT_BINARY_DIR}/path.sh) set(path "${CMAKE_INSTALL

问题 I have an app on Rails 5.2 and it was previously hosted on DigitalOcean, but I need to host it on heroku. I've been reading that heroku can't read Credentials.yml of because it's on gitignore and of course I don't want it public. So my key variables are like this (and example with redis): host: Rails.application.credentials.redis_host, password: Rails.application.credentials.redis_password Heroku can't read this. So my question is what is the best approach to change that in to heroku ENV

问题 I have a C# console program that prints an App.config value. Can I override this value from an environment variable? In my real use-case, the value specifies a port to bind, and I need to run multiple instances of the program in my Jenkins server, so each one should have a different value even though they use the same config file. Example App.config: <appSettings> <add key="TestKey" value="Foo"/> </appSettings> Example Code: Console.WriteLine($"Key: {ConfigurationManager.AppSettings["TestKey"

问题 How can I keep the environment variables, set from a shell script, after the script finishes running? 回答1: This is not possible by running the script. The script spawns it's own sub-shell which is lost when the script completes. In order to preserve export s that you may have in your script, you can call them like this, which will add them to the current environment: . myScript.sh Notice the space between the . and the myScript.sh section. 回答2: run the script as follows: source <script> -OR-