#!stacker """
# No est code is allowed in the header.
# Just YAML.

# output processed file to location relative to the file
output: tmp/config.yaml

# override config settings
config:
  nested:
    var2: hello from the header
"""

var1: <%- "abcdef" %>
var2: <%= @config.nested.var2 %>
var3: <%= @config.var3 %>
header:
  output: <%= @header.output %>