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Bunch of tasks to achieve more controlled deploys #60

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Bunch of tasks to achieve more controlled deploys #60

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da35eb5
Bunch of tasks to achieve more controlled deploys
enriclluelles Jul 17, 2013
ecaae10
Don't send winch to a unicorn that's not running
josepjaume Aug 28, 2013
863a011
Fix missing semicolon
josepjaume Aug 28, 2013
e02010c
Merge pull request #1 from josepjaume/patch-1
enriclluelles Nov 26, 2013
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45 changes: 41 additions & 4 deletions lib/capistrano-unicorn/capistrano_integration.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,10 @@ class CapistranoIntegration
'unicorn:reload',
'unicorn:shutdown',
'unicorn:add_worker',
'unicorn:remove_worker'
'unicorn:remove_worker',
'unicorn:stop_old_master',
'unicorn:duplicate_stop_old_workers',
'unicorn:fallback'
]

def self.load_into(capistrano_config)
Expand Down Expand Up @@ -143,6 +146,17 @@ def unicorn_roles
fetch(:unicorn_roles, :app)
end

def kill_old_unicorn
<<-END
if #{old_unicorn_is_running?}; then
echo "Stopping old Unicorn...";
#{unicorn_send_signal('QUIT', get_old_unicorn_pid)};
else
echo "old Unicorn is not running.";
fi;
END
end

#
# Unicorn cap tasks
#
Expand All @@ -169,12 +183,11 @@ def unicorn_roles

sleep #{unicorn_restart_sleep_time}; # in order to wait for the (old) pidfile to show up

if #{old_unicorn_is_running?}; then
#{unicorn_send_signal('QUIT', get_old_unicorn_pid)};
fi;
#{kill_old_unicorn}
END
end


desc 'Duplicate Unicorn'
task :duplicate, :roles => unicorn_roles, :except => {:no_release => true} do
run duplicate_unicorn()
Expand Down Expand Up @@ -215,6 +228,30 @@ def unicorn_roles
fi;
END
end

desc 'Kill old master process'
task :stop_old_master, :roles => unicorn_roles, :except => {:no_release => true} do
run kill_old_unicorn()
end

desc 'Duplicate unicorn and tell the old master to stop serving requests'
task :duplicate_stop_old_workers, :roles => unicorn_roles, :except => {:no_release => true} do
run <<-END
#{duplicate_unicorn}

sleep #{unicorn_restart_sleep_time};

if #{old_unicorn_is_running?}; then
#{unicorn_send_signal('WINCH', get_old_unicorn_pid)};
fi;
END
end

desc 'Fallback to old master'
task :fallback, :roles => unicorn_roles, :except => {:no_release => true} do
run unicorn_send_signal('HUP', get_old_unicorn_pid)
end

end
end
end
Expand Down