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Contents
desc <<-DESC
Invoke a single command on the remote servers. This is useful for performing \
one-off commands that may not require a full task to be written for them. \
Simply specify the command to execute via the COMMAND environment variable. \
To execute the command only on certain roles, specify the ROLES environment \
variable as a comma-delimited list of role names. Alternatively, you can \
specify the HOSTS environment variable as a comma-delimited list of hostnames \
to execute the task on those hosts, explicitly. Lastly, if you want to \
execute the command via sudo, specify a non-empty value for the SUDO \
environment variable.
Sample usage:
$ cap COMMAND=uptime HOSTS=foo.capistano.test invoke
$ cap ROLES=app,web SUDO=1 COMMAND="tail -f /var/log/messages" invoke
DESC
task :invoke do
command = ENV["COMMAND"] || ""
abort "Please specify a command to execute on the remote servers (via the COMMAND environment variable)" if command.empty?
method = ENV["SUDO"] ? :sudo : :run
invoke_command(command, :via => method)
end
desc <<-DESC
Begin an interactive Capistrano session. This gives you an interactive \
terminal from which to execute tasks and commands on all of your servers. \
(This is still an experimental feature, and is subject to change without \
notice!)
Sample usage:
$ cap shell
DESC
task :shell do
require 'capistrano/shell'
Capistrano::Shell.run(self)
end
Version data entries
13 entries across 13 versions & 2 rubygems