module UnicornService::Utility

Public Instance Methods

create_initd_file(path_to_app, user) click to toggle source
# File lib/unicorn_service/utility.rb, line 11
    def create_initd_file(path_to_app, user)
<<-EOF
#!/bin/sh
### BEGIN INIT INFO
# Provides:          Unicorn
# Required-Start:    $remote_fs $syslog
# Required-Stop:     $remote_fs $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Init script for unicorn instace
### END INIT INFO
set -e

TIMEOUT=${TIMEOUT-60}
APP_ROOT=#{path_to_app}
APP_CURRENT=$APP_ROOT/current
APP_USER=#{user}
PID=$APP_ROOT/shared/pids/unicorn.pid
ENV=production
CMD="cd $APP_CURRENT && bundle exec unicorn -E $ENV -D -c $APP_CURRENT/config/unicorn.rb"
action="$1"
set -u

old_pid="$PID.oldbin"

cd $APP_CURRENT || exit 1

sig () {
        test -s "$PID" && kill -$1 `cat $PID`
}

oldsig () {
        test -s $old_pid && kill -$1 `cat $old_pid`
}

case $action in
start)
        sig 0 && echo >&2 "Already running" && exit 0
        pwd
        su --login $APP_USER -c "$CMD"
        ;;
stop)
        sig QUIT && exit 0
        echo >&2 "Not running"
        ;;
force-stop)
        sig TERM && exit 0

        echo >&2 "Not running"
        ;;
restart|reload)
        sig HUP && echo reloaded OK && exit 0
        echo >&2 "Couldn't reload, starting '$CMD' instead"
        su --login $APP_USER -c "$CMD"
        ;;

upgrade)
        if sig USR2 && sleep 2 && sig 0 && oldsig QUIT
        then
                n=$TIMEOUT
                while test -s $old_pid && test $n -ge 0
                do
                        printf '.' && sleep 1 && n=$(( $n - 1 ))
                done
                echo

                if test $n -lt 0 && test -s $old_pid
                then
                        echo >&2 "$old_pid still exists after $TIMEOUT seconds"
                        exit 1
                fi
                exit 0
        fi
        echo >&2 "Couldn't upgrade, starting '$CMD' instead"
        su --login $APP_USER -c "$CMD"
        ;;
reopen-logs)
        sig USR1
        ;;
*)
        echo >&2 "Usage: $0 "
        exit 1
        ;;
esac
EOF
    end
put_sudo(data, to) click to toggle source

gist.github.com/mklnz/2407925

# File lib/unicorn_service/utility.rb, line 4
def put_sudo(data, to)
  filename = File.basename(to)
  to_directory = File.dirname(to)
  put data, "/tmp/#{filename}"
  run "#{sudo} mv /tmp/#{filename} #{to_directory}"
end