tent'>&#39; for Heroku</span><span class='tstring_end'>&quot;</span></span>
      <span class='id identifier rubyid_command'>command</span> <span class='op'>=</span> <span class='tstring'><span class='tstring_beg'>%{</span><span class='tstring_content'>docker tag </span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_image_name'>image_name</span><span class='embexpr_end'>}</span><span class='tstring_content'> </span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_he