In your Vim RC

puppet.vim

" ~/.vim/ftplugin/puppet.vim
"
" Requires Align VIM plugin:
" http://mysite.verizon.net/astronaut/vim/align.html

" With a visual block selected, align =>'s
vmap . :Align =><CR>

" Function to save cursor position, select the block, and align =>'s
function! AlignFats()
  let save_cursor = getpos(".")
  call SelectIndent()
  exe "norm ."
  call setpos('.', save_cursor)
endfun

" Bind the comma to align all fats in the current resource.
noremap , :call AlignFats()<CR>

vimrc.vim

" The goal here is to select the current block with space,
" and align everything with the dot key.
" ~/.vimrc

" Visually select current indent level and greater.
" http://vim.wikia.com/wiki/VimTip1014
" Bind the function to the spacebar
function! SelectIndent ()
  let temp_var=indent(line("."))
  while indent(line(".")-1) >= temp_var
    exe "normal k"
  endwhile
  exe "normal V"
  while indent(line(".")+1) >= temp_var
    exe "normal j"
  endwhile
endfun
" Map space to visual-block-line select the current indent level
nmap <Space> :call SelectIndent()<CR>