capistrano doesn't call deploy:start when executing deploy:cold -


i'm using capistrano 2 deploy application. according documentation, deploy:cold task call deploy:update followed deploy:migrate , call deploy:start.

in application don't have migration step, , when run cap deploy:cold, update shows this:

* 2014-04-09 14:57:45 executing `deploy:migrate' `deploy:migrate' run servers matching {:roles=>:db, :only=>{:primary=>true}}, no servers matched

and deploy:start not being called. if call manually, works fine - never through deploy:cold. missing?

the problem capistrano 2 defines default task called deploy:migrate specified run role :db. if don't have role in application (which not), when deploy:migrate runs error out on missing role, , kind of error terminates deployment scenario.

this can happen other tasks, if have complex setup tasks run specific servers. behavior not documented @ @ capistrano's site, shame.

starting capistrano 2.7 there way circumvent "is run servers matching role" error, specifying task property tells capistrano skip tasks if no servers matches of specified roles:

for example:

namespace :deploy   task :stuff, :roles => :somerole, :on_no_matching_servers => :continue     # stuff   end end

now works custom tasks, how set default task migrate ? have override task own setting , add :on_no_matching_servers option. i've added global.rb file:

namespace :deploy   task :migrate, :on_no_matching_servers => :continue end end

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