manage dynos (dynos, workers)
ps:dynos [QTY] DEPRECATED: use `heroku ps:scale dynos=N` scale to QTY web processes if QTY is not specified, display the number of web processes currently running
Example:
$ heroku ps:dynos 3 Scaling dynos... done, now running 3
# File lib/heroku/command/ps.rb, line 20 def dynos # deprecation notice added to v2.21.3 on 03/16/12 display("~ `heroku ps:dynos QTY` has been deprecated and replaced with `heroku ps:scale dynos=QTY`") dynos = shift_argument validate_arguments! if dynos action("Scaling dynos") do new_dynos = api.put_dynos(app, dynos).body["dynos"] status("now running #{new_dynos}") end else app_data = api.get_app(app).body if app_data["stack"] == "cedar" raise(Heroku::Command::CommandFailed, "For Cedar apps, use `heroku ps`") else display("#{app} is running #{quantify("dyno", app_data["dynos"])}") end end end
ps list dynos for an app
Example:
$ heroku ps === run: one-off dyno run.1: up for 5m: `bash` === web: `bundle exec thin start -p $PORT` web.1: created for 30s
# File lib/heroku/command/ps.rb, line 94 def index validate_arguments! processes = api.get_ps(app).body processes_by_command = Hash.new {|hash,key| hash[key] = []} processes.each do |process| name = process["process"].split(".").first elapsed = time_ago(Time.now - process['elapsed']) size = process.fetch("size", 1) if name == "run" key = "run: one-off processes" item = "%s (%sX): %s %s: `%s`" % [ process["process"], size, process["state"], elapsed, process["command"] ] else key = "#{name} (#{size}X): `#{process["command"]}`" item = "%s: %s %s" % [ process["process"], process["state"], elapsed ] end processes_by_command[key] << item end extract_run_id = /\.(\d+).*:/ processes_by_command.keys.each do |key| processes_by_command[key] = processes_by_command[key].sort do |x,y| x.match(extract_run_id).captures.first.to_i <=> y.match(extract_run_id).captures.first.to_i end end processes_by_command.keys.sort.each do |key| styled_header(key) styled_array(processes_by_command[key], :sort => false) end end
ps:resize DYNO1=1X|2X [DYNO2=1X|2X …]
resize dynos to the given size
Example:
$ heroku ps:resize web=2X worker=1X Resizing and restarting the specified dynos… done web dynos now 2X ($0.10/dyno-hour) worker dynos now 1X ($0.05/dyno-hour)
# File lib/heroku/command/ps.rb, line 246 def resize app changes = {} args.each do |arg| if arg =~ /^([a-zA-Z0-9_]+)=(\d+)([xX]?)$/ changes[$1] = { "size" => $2.to_i } end end if changes.empty? message = [ "Usage: heroku ps:resize DYNO1=1X|2X [DYNO2=1X|2X ...]", "Must specify DYNO and SIZE to resize." ] error(message.join("\n")) end action("Resizing and restarting the specified dynos") do api.request( :expects => 200, :method => :put, :path => "/apps/#{app}/formation", :body => json_encode(changes) ) end changes.each do |type, options| size = options["size"] price = sprintf("%.2f", 0.05 * size) display "#{type} dynos now #{size}X ($#{price}/dyno-hour)" end end
ps:restart [DYNO] restart an app dyno if DYNO is not specified, restarts all dynos on the app
Examples:
$ heroku ps:restart web.1 Restarting web.1 dyno... done $ heroku ps:restart web Restarting web dyno... done $ heroku ps:restart Restarting dynos... done
# File lib/heroku/command/ps.rb, line 145 def restart dyno = shift_argument validate_arguments! message, options = case dyno when NilClass ["Restarting dynos", {}] when /.+\..+/ ps = args.first ["Restarting #{ps} dyno", { :ps => ps }] else type = args.first ["Restarting #{type} dynos", { :type => type }] end action(message) do api.post_ps_restart(app, options) end end
ps:scale DYNO1=AMOUNT1 [DYNO2=AMOUNT2 ...] scale dynos by the given amount
Examples:
$ heroku ps:scale web=3 worker+1 Scaling web dynos... done, now running 3 Scaling worker dynos... done, now running 1
# File lib/heroku/command/ps.rb, line 177 def scale changes = {} args.each do |arg| if arg =~ /^([a-zA-Z0-9_]+)([=+-]\d+)$/ changes[$1] = $2 end end if changes.empty? error("Usage: heroku ps:scale DYNO1=AMOUNT1 [DYNO2=AMOUNT2 ...]\nMust specify DYNO and AMOUNT to scale.") end changes.keys.sort.each do |dyno| amount = changes[dyno] action("Scaling #{dyno} dynos") do amount.gsub!("=", "") new_qty = api.post_ps_scale(app, dyno, amount).body status("now running #{new_qty}") end end end
ps:stop DYNOS
stop an app dyno
Examples:
$ heroku stop run.3 Stopping run.3 dyno… done
$ heroku stop run Stopping run dynos… done
# File lib/heroku/command/ps.rb, line 213 def stop dyno = shift_argument validate_arguments! message, options = case dyno when NilClass error("Usage: heroku ps:stop DYNO\nMust specify DYNO to stop.") when /.+\..+/ ps = args.first ["Stopping #{ps} dyno", { :ps => ps }] else type = args.first ["Stopping #{type} dynos", { :type => type }] end action(message) do api.post_ps_stop(app, options) end end
ps:workers [QTY] DEPRECATED: use `heroku ps:scale workers=N` scale to QTY background processes if QTY is not specified, display the number of background processes currently running
Example:
$ heroku ps:dynos 3 Scaling workers... done, now running 3
# File lib/heroku/command/ps.rb, line 57 def workers # deprecation notice added to v2.21.3 on 03/16/12 display("~ `heroku ps:workers QTY` has been deprecated and replaced with `heroku ps:scale workers=QTY`") workers = shift_argument validate_arguments! if workers action("Scaling workers") do new_workers = api.put_workers(app, workers).body["workers"] status("now running #{new_workers}") end else app_data = api.get_app(app).body if app_data["stack"] == "cedar" raise(Heroku::Command::CommandFailed, "For Cedar apps, use `heroku ps`") else display("#{app} is running #{quantify("worker", app_data["workers"])}") end end end