Add extension jinja2.ext.do for jinja2 templates

stack/lamp/buildout.cfg

@@ -88,6 +88,7 @@ mode = 0644
 recipe = slapos.recipe.template:jinja2
 template = ${:_profile_base_location_}/apache/instance-apache-export.cfg.jinja2
 rendered = ${buildout:directory}/instance-apache-export.cfg
+extensions = jinja2.ext.do
 
 context = key templateapache instance-apache-php:output
           key templatepbsreadyexport pbsready-export:output
@@ -102,6 +103,7 @@ mode = 0644
 recipe = slapos.recipe.template:jinja2
 template = ${:_profile_base_location_}/instance-resilient.cfg.jinja2
 rendered = ${buildout:directory}/instance-resilient.cfg
+extensions = jinja2.ext.do
 
 context = key buildout buildout:bin-directory
           key develop_eggs_directory buildout:develop-eggs-directory