capistrano-rbenv runs command on each server irrespective of hosts/roles filters

[shishirsharma]

My configuration has more then 200 servers. I run deploy on with role/hosts filters. But rbenv is trying to connect on each server. If a role is filtered out rbenv should not try to connect a server at all.

it is running "/usr/bin/env [ ! -d /home/.rbenv/versions/2.0.0-p247 ] " on each server.

yyuu/capistrano-rbenv#15

capistrano/capistrano#795

forward3d/cap-ec2#14

[kirs]

https://github.com/capistrano/rbenv/blob/master/lib/capistrano/tasks/rbenv.rake#L3
Are you using rbenv_roles option?

[rahul100885]

In my case, I have simple setup where I have separate server for db. So db role is separate.
e.g.

 server 'example.com', user: 'deploy', roles: %w{web app}, forward_agent: true
 server 'db.example.com', user: 'deploy', roles: %w{db}, forward_agent: true

But on

cap production deploy 

give following error

DEBUG [573408f6] Running /usr/bin/env [ ! -d ~/.rbenv/versions/2.1.2 ] on example.com
DEBUG [573408f6] Command: [ ! -d ~/.rbenv/versions/2.1.2 ]
DEBUG [89bb9203] Running /usr/bin/env [ ! -d ~/.rbenv/versions/2.1.2 ] on db.example.com
DEBUG [89bb9203] Command: [ ! -d ~/.rbenv/versions/2.1.2 ]
DEBUG [573408f6] Finished in 1.822 seconds with exit status 1 (failed).
DEBUG [89bb9203] Finished in 1.882 seconds with exit status 0 (successful).

[kirs]

Capistrano expects db server to has rbenv/ruby installed to run Rails migrations.

[rahul100885]

But migration resides on app server and database.yml is responsible for connection. So no need of rbenv on db server.

By the way @kirs , I have solved issue using rbenv_roles.

[kirs]

But migration resides on app server and database.yml is responsible for connection. So no need of rbenv on db server.

Then why do you need to list DB server on Capistrano?

[rahul100885]

@kirs practically for my app no need.