[Environment variables] What are rails environment variables?

【goal】

Use environment variables to embed information in your application

【merit】

■ Information that you do not want to leak can be used in the application ■ Improved security ■ Can be used for various APIs

【Development environment】

■ Mac OS catalina ■ Ruby on Rails (5.2.4.2) ■ Virtual Box:6.1 ■ Vagrant: 2.2.7

【Implementation】

Install gem'dotenv-rails'

application.Gemfile


gem 'dotenv-rails'

mac.terminal


bundle install

Create ".env" directly under the app

Write in .env

In the application.env


#google omniauth 2.For 0
GOOGLE_APP_ID='xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
GOOGLE_APP_SECRET='xxxxxxxxxxxxxxxxxxxxxxxxxx'

#Deployment settings
DB_USERNAME='xxxxxxxx'
DB_PASSWORD="xxxxxxxxx"
DB_HOST="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
DB_DATABASE="xxxxxxxxxx"

#Mail function implementation
USER_NAME="txxxxxxxxxxxx"
USER_PASSWORD="xxxxxxxxxxx"

that's all After that, increase the code depending on the service or application you want to use.

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