how to setup PostgreSQL username and password on digitalOcean

Question

Hello I am trying replace my app with the digital Ocean default App but when i try to run,

rails db:setup

i have this error

fe_sendauth: no password supplied
Couldn't create database for {"adapter"=>"postgresql", 
"encoding"=>"unicode", "pool"=>5, "host"=>"localhost", 
"username"=>"rails", "password"=>nil, 
"database"=>"realestate_development"}
rails aborted!
PG::ConnectionBad: fe_sendauth: no password supplied

Here is my database.yml file

pool: 5
host: localhost
username: rails
password: <%= ENV['APP_DATABASE_PASSWORD'] %>

development:
 <<: *default
 database: realestate_development

test:
 <<: *default
 database: realestate_test

production:
 <<: *default
 database: realestate_production
 username: rails
 password: <%= ENV['APP_DATABASE_PASSWORD'] %>

Answer 1

If you follow the steps here , it will ask you for password for postgres user or you could create another user, "rails". Then you can update your database.yml with those credentials, especially the password.

Answer 2

该消息非常清楚： fe_sendauth：未提供密码在生产中访问Rails控制台并签出ENV ['APP_DATABASE_PASSWORD']值。