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Showing posts with the label environment variables

#7. Setting environment variables for rails app in ubuntu

Never keep any secret data in public folder. Always use environment variables to keep secret data. Suppose we want to set postgresql username and password as environment variables  in Ubuntu then do as, # type the following in the terminal to write in the .bashrc file. echo 'export MY_POSTGRESQL_USERNAME="rajkumar"' >> ~/.bashrc echo 'export MY_POSTGRESQL_PASSWORD="HJH34df@dff#@"' >> ~/.bashrc reload .bashrc as, source ~/.bashrc In order to print environment variables prepend it with $ as,  echo $MY_POSTGRESQL_USERNAME echo $MY_POSTGRESQL_PASSWORD test environment variables as, echo $MY_POSTGRESQL_USERNAME rajkumar echo $MY_POSTGRESQL_PASSWORD HJH34df@dff#@ Also use ubuntu command printenv to print all the environment variables. then in the database.yml use these environment variables as, development:   adapter: postgresql   encoding: unicode   host: localhost   username: <%= ENV["MY_POSTGRESQL_USERNAME"] %>   password: ...