[Capistrano] Re: Unable to obtain hosts from ENV[] in actor.rb

[Jamis Buck]

What is the command you are trying to run?

- Jamis

On Sep 27, 2007, at 5:56 PM, bukaki wrote:

I am actually having the same problem as the original author.  I do
have a file named Capfile in my top level.  Below is my deploy.rb

# This defines a deployment "recipe" that you can feed to capistrano
# (http://manuals.rubyonrails.com/read/book/17). It allows you to
automate
# (among other things) the deployment of your application.

#

# REQUIRED VARIABLES
#

# You must always specify the application and repository for every
recipe. The
# repository must be the URL of the repository you want this recipe to
# correspond to. The deploy_to path must be the path on each machine
that will
# form the root of the application path.

set :user, "luke"
set :application, "test"
set :repository, "http://svn.sjsnetworking.com/test";

#

# ROLES
#

# You can define any number of roles, each of which contains any
number of
# machines. Roles might include such things as :web, or :app, or :db,
defining
# what the purpose of each machine is. You can also specify options
that can
# be used to single out a specific subset of boxes in a particular
role, like
# :primary => true.

role :web, "sjsnetworking.com"
role :app, "sjsnetworking.com"
role :db,  "sjsnetworking.com", :primary => true

#

# OPTIONAL VARIABLES
#

set :deploy_to, "/home/lukecampbell/domain" # defaults to "/u/apps/
#{application}"
set :use_sudo, false
set :checkout, "export"
# set :user, "flippy"            # defaults to the currently logged in
user
# set :scm, :darcs               # defaults to :subversion
set :svn, "/usr/bin/svn"       # defaults to searching the PATH
set :svn_username, Proc.new { "luke --password password" }

# set :darcs, "/path/to/darcs"   # defaults to searching the PATH
# set :cvs, "/path/to/cvs"       # defaults to searching the PATH
# set :gateway, "gate.host.com"  # default to no gateway



#

# SSH OPTIONS
#

# ssh_options[:keys] = %w(/path/to/my/key /path/to/another/key)
# ssh_options[:port] = 25

#

# TASKS
#

# Define tasks that run on all (or only some) of the machines. You can
specify
# a role (or set of roles) that each task should be executed on. You
can also
# narrow the set of servers to a subset of a role by specifying
options, which
# must match the options given for the servers to select
(like :primary => true)

desc <<DESC
An imaginary backup task. (Execute the 'show_tasks' task to display
all
available tasks.)
DESC
task :backup, :roles => :db, :only => { :primary => true } do
  # the on_rollback handler is only executed if this task is executed
within
  # a transaction (see below), AND it or a subsequent task fails.
  on_rollback { delete "/tmp/dump.sql" }

  run "mysqldump -u theuser -p thedatabase > /tmp/dump.sql" do |ch,
stream, out|
    ch.send_data "thepassword\n" if out =~ /^Enter password:/
  end
end

# Tasks may take advantage of several different helper methods to
interact
# with the remote server(s). These are:
#
# * run(command, options={}, &block): execute the given command on all
servers
#   associated with the current task, in parallel. The block, if
given, should
#   accept three parameters: the communication channel, a symbol
identifying the
#   type of stream (:err or :out), and the data. The block is invoked
for all
#   output from the command, allowing you to inspect output and act
#   accordingly.
# * sudo(command, options={}, &block): same as run, but it executes
the command
#   via sudo.
# * delete(path, options={}): deletes the given file or directory from
all
#   associated servers. If :recursive => true is given in the options,
the
#   delete uses "rm -rf" instead of "rm -f".
# * put(buffer, path, options={}): creates or overwrites a file at
"path" on
#   all associated servers, populating it with the contents of
"buffer". You
#   can specify :mode as an integer value, which will be used to set
the mode
#   on the file.
# * render(template, options={}) or render(options={}): renders the
given
#   template and returns a string. Alternatively, if the :template key
is given,
#   it will be treated as the contents of the template to render. Any
other keys
#   are treated as local variables, which are made available to the
(ERb)
#   template.

desc "Demonstrates the various helper methods available to recipes."
task :helper_demo do
  # "setup" is a standard task which sets up the directory structure
on the
  # remote servers. It is a good idea to run the "setup" task at least
once
  # at the beginning of your app's lifetime (it is non-destructive).
  setup

  buffer = render("maintenance.rhtml", :deadline => ENV['UNTIL'])
  put buffer, "#{shared_path}/system/maintenance.html", :mode => 0644
  sudo "killall -USR1 dispatch.fcgi"
  run "#{release_path}/script/spin"
  delete "#{shared_path}/system/maintenance.html"
end

# You can use "transaction" to indicate that if any of the tasks
within it fail,
# all should be rolled back (for each task that specifies an
on_rollback
# handler).

desc "A task demonstrating the use of transactions."
task :long_deploy do
  transaction do
    update_code
    disable_web
    symlink
    migrate
  end

  restart
  enable_web
end

desc "Restart the FCGI processes on the app server as a regular user."
task :restart, :roles => :app do
  run "#{current_path}/script/process/reaper --
dispatcher=dispatch.fcgi"
end


On Sep 4, 10:54 pm, chris <[EMAIL PROTECTED]> wrote:

====================================================================== ======= ====================================================================== ======= ====================================================================== ======= ====================================================================== ======= ====================================================================== ======= ====================================================================== ======= ====================================================================== ======= ====================================================================== ======= ====================================================================== ======= ====================================================================== =======

No I don't have a Capfile.  I was under the impression that was for
2.0 only, although I could very well be wrong.  I am using 1.4.1.

Although I ran the command again to find the previous error message
and this time it worked.  Not sure why.  I am just getting some
permission errors on the server for creating directories.

Thanks for the help

On Sep 4, 10:33 pm, "Jamis Buck" <[EMAIL PROTECTED]> wrote:

ENV is a Hash instance, containing all defined environment variables. However, that's not really going to be the problem, since all it means

is that you don't have one of the (optional) environment variables

Capfile in your top-level project directory? If so, what does it
contain?

set. Rather, the error you are getting occurs when you don't have your roles configured correctly. Was what you pasted in your original email the entire contents of your config/deploy.rb? Do you have a file named

- Jamis

On 9/4/07, chris <[EMAIL PROTECTED]> wrote:

When running the cap setup command I am getting the following error:

executing "umask 02 &&\n mkdir -p /u/apps/ /u/apps/releases / u/apps/

shared /u/apps/shared/system &&\n    mkdir -p /u/apps/shared/log &&
\n    mkdir -p /u/apps/shared/pids"
/usr/local/lib/ruby/gems/1.8/gems/capistrano-1.4.1/lib/capistrano/

servers matching {:except=>{:no_release=>true}, :desc=>"Set up the
expected application directory structure on all boxes"}, but no
servers matched (RuntimeError)

actor.rb:545:in `execute_on_servers': The setup task is only run for

When looking at the Capistrano code it seems that it is unable to
obtain any hosts in the following code block.  I What is the ENV
array?

# /usr/local/lib/ruby/gems/1.8/gems/capistrano-1.4.1/lib/ capistrano/

actor.rb :108
def environment_values(key, use_symbols = false)

obtain nothing, then being false
        values = variable.split(",")
        use_symbols ? values.collect { |e| e.to_sym } : values
    end
end

if variable = ENV[key.to_s.upcase] ### This is where it seems to

Here is what I have in my deploy.rb file:
set :application, "softballsmart"
set :domain, "pointytack.com"
set :user, "chrisolsen"
set :svn, "/svn-repos/#{application}/trunk"
set :repository, "svn+ssh://[EMAIL PROTECTED]"
set :rails_env, "production"

role :web, domain
role :app, domain
role :db,  domain, :primary => true

set :deploy_to, "/var/www/apps"
ssh_options[:keys] = %w(/Users/chrisolsen/.ssh/id_dsa)
ssh_options[:port] = 22

I am assuming that something is missing or set incorrectly.  Thanks
for the help- Hide quoted text -

- Show quoted text -

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