ruby on rails - capify-ec2 cap deploy:migrate db no servers matching -

ruby on rails - capify-ec2 cap deploy:migrate db no servers matching -

i'm unable perform cap deploy:migrate. , error message is:

2014-10-14 10:01:15 executing `deploy:migrate' executing "ls -x /home/pj-production/projectname/releases" `deploy:migrate' run servers matching {:roles=>:db, :only=>{:primary=>true}}, no servers matched

setup:

rails (3.2.13)

capistrano (2.14.2)

capify-ec2 (1.1.6)

cap ec2:status

project: projectname. num name id type dns zone roles 00: worker01 i-1 t1.micro ec2-x1.eu-west-1.compute.amazonaws.com eu-west-1b worker 01: db01 i-d m1.medium ec2-x2.eu-west-1.compute.amazonaws.com eu-west-1b 02: web01 i-f m1.medium ec2-x3.eu-west-1.compute.amazonaws.com eu-west-1b web,app,db

in deploy.rb:

ec2_roles name: :web, options: { default: true } ec2_roles name: :app, options: { default: true } ec2_roles name: :db, options: { default: true } ec2_roles name: :worker, options: { default: true }

there parts in deploy.rb

task :start, roles: :app run "cd #{current_path} && bundle exec unicorn -c config/unicorn/production.conf.rb -e production -d" end

works, illustration when perform a: cap deploy, runs , finishes.

what problem? searched google , other questions in stack. couldnt run. i'm not using multistage btw , gist file of deploy.rb: https://gist.github.com/adogan/2121d312c5938746acd6

for ec2 instance roles: 'web,app,db' need add together 'options' tag in aws single value, 'primary'. equivalent having config/deploy/env.rb line:

role :db, "10.1.2.3", :primary => true

deploy works because skip db:migrate if there no boxes match role 'db' primary true. you're asking db:migrate, fail if there no boxes run on.

ruby-on-rails amazon-web-services deployment amazon-ec2 capistrano