Rails with Postgresql: Problem running rake db:migrate in production

August 9, 2014 11.5k views
john.yeung628
By:
john.yeung628

I have built a rails app on my local machine and would like to deploy it, following the tutorial here: https://www.digitalocean.com/community/tutorials/how-to-launch-your-ruby-on-rails-app-with-the-digitalocean-one-click-image

However, after uploading the whole app through SFTP, creating a postgresql user named 'postgres' (I did this to get around the peer authentication error), running the command
RAILS_ENV=production rake db:migrateas the UNIX user postgres gave me the following errors:

Rails Error: Unable to access log file. Please ensure that /home/rails/log/production.log exists and is chmod 0666. The log level has been raised to WARN and the output directed to STDERR until the problem is fixed.
rake aborted!
Errno::EACCES: Permission denied - /home/rails/db/schema.rb

I have spent quite a bit of time googling around but no luck. Please help.

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3 Answers
asb MOD August 11, 2014

The issue you're seeing is due to the fact that you are running the command as the user postgres who doesn't have permissions to access /home/rails/db/schema.rb Instead of running rake as the UNIX user postgres, create a postgres user/password for your Rails app:

sudo -u postgres psql
create role myapp_user with createdb login password 'db_password';

Then in your database.yml file:

development:
  adapter: postgresql
  encoding: unicode
  database: myapp_development
  pool: 5
  username: myapp_user
  password: db_password

test:
  adapter: postgresql
  encoding: unicode
  database: myapp_test
  pool: 5
  username: myapp_user
  password: db_password

production:
  adapter: postgresql
  encoding: unicode
  database: myapp_test
  pool: 5
  username: myapp_user
  password: db_password
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abhinaykumar June 9, 2015

@asb I am having the same issue even after following this solution. it still says:

deploy@TTP:/srv/ttp$ rake db:migrate
rake aborted!
Errno::EACCES: Permission denied @ rb_sysopen - /srv/ttp/db/schema.rb
/usr/local/rvm/gems/ruby-2.2.2/gems/activerecord-4.2.0/lib/active_record/railties/databases.rake:236:in `initialize'
/usr/local/rvm/gems/ruby-2.2.2/gems/activerecord-4.2.0/lib/active_record/railties/databases.rake:236:in `open'
/usr/local/rvm/gems/ruby-2.2.2/gems/activerecord-4.2.0/lib/active_record/railties/databases.rake:236:in `block (3 levels) in <top (required)>'
/usr/local/rvm/gems/ruby-2.2.2/gems/activerecord-4.2.0/lib/active_record/railties/databases.rake:50:in `block (2 levels) in <top (required)>'
/usr/local/rvm/gems/ruby-2.2.2/gems/activerecord-4.2.0/lib/active_record/railties/databases.rake:45:in `block (2 levels) in <top (required)>'
Tasks: TOP => db:schema:dump
(See full trace by running task with --trace)

Can you help me on this.

Reply
jaswindersinghsn97 February 21, 2017

You need to change app folder files permission as:

sudo chown -R jsingh /var/www/

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