Jinja template list and dict parsing - jinja2

Question

I'm trying to get this template to work to create an HAProxy config file. It's almost there, but I can't seem to get the lists in here correctly. I want to save the key and prepend that to the list of items, for example:
This:
acl:
- host_static hdr_beg(host) -i static
- url_static path_beg static
Should be:
acl host_static hdr_beg(host) -i static
acl url_static path_beg static
This would be any dict key that has a list for their value.
The carryover is there because there could be multiple frontends and backends and those would be a dict under frontend.
I was able to update it, probably a better way to do this, but seems to work ok:
Edit (Updated Working Code)
{%- set key = 0 -%}
{%- set value = 1 -%}
{%- set carryovers = ['frontend', 'backend','listen'] -%}
{%- macro haproxy_config(data, carryover='', listkey='', recurse=-1, indent=0) -%}
{%- set recurse = recurse + 1 -%}
{%- if data is none -%}
{{- '\n' -}}
{%- elif data is string or data is number -%}
{{- '%s %s'|format(listkey,data)|string|indent(indent, True) }}{{ '\n' -}}
{%- else -%}
{%- if recurse > 0 -%}
{{- '\n' -}}
{%- set indent = indent + 2 -%}
{%- endif -%}
{%- if data is mapping -%}
{%- for item in data|dictsort -%}
{%- if item[key] in carryovers -%}
{{- haproxy_config(item[value], carryover=item[key], indent=indent) -}}
{%- else -%}
{%- set carryIndent = indent -%}
{%- set forwardIndent = indent -%}
{%- if carryover -%}
{{- carryover|indent(indent, True) }}{{ ' ' -}}
{%- set carryIndent = 0 -%}
{%- endif -%}
{%- if item[value] is string or item[value] is not iterable -%}
{%- set forwardIndent = 0 -%}
{%- endif -%}
{%- if item[value] is not string and item[value] is iterable and item[value] is not mapping -%}
{%- set forwardIndent = 0 -%}
{{ haproxy_config(item[value], listkey=item[key], recurse=recurse, indent=forwardIndent) -}}
{%- else -%}
{{- item[key]|indent(carryIndent, True) }} {{ haproxy_config(item[value], recurse=recurse, indent=forwardIndent) -}}
{%- endif -%}
{%- endif -%}
{%- endfor -%}
{%- else -%}
{%- for item in data -%}
{{- haproxy_config(item, listkey=listkey, indent=indent) -}}
{%- endfor -%}
{%- endif -%}
{%- if recurse > 0 -%}
{{ '\n' }}
{%- endif -%}
{%- endif -%}
{%- endmacro -%}
=======================================================================
Template:
{%- set key = 0 -%}
{%- set value = 1 -%}
{%- set carryovers = ['frontend', 'backend',
'listen'] -%}
{%- macro haproxy_config(data, carryover='', recurse=-1, indent=0) -%}
{%- set recurse = recurse + 1 -%}
{%- if data is none -%}
{{- '\n' -}}
{%- elif data is string or data is number -%}
{{- data|string|indent(indent, True) }}{{ '\n' -}}
{%- else -%}
{%- if recurse > 0 -%}
{{- '\n' -}}
{%- set indent = indent + 2 -%}
{%- endif -%}
{%- if data is mapping -%}
{%- for item in data|dictsort -%}
{%- if item[key] in carryovers -%}
{{- haproxy_config(item[value], carryover=item[key], indent=indent) -}}
{%- else -%}
{%- set carryIndent = indent -%}
{%- set forwardIndent = indent -%}
{%- if carryover -%}
{{- carryover|indent(indent, True) }}{{ ' ' -}}
{%- set carryIndent = 0 -%}
{%- endif -%}
{%- if item[value] is string or item[value] is not iterable -%}
{%- set forwardIndent = 0 -%}
{%- endif -%}
{{- item[key]|indent(carryIndent, True) }} {{ haproxy_config(item[value], recurse=recurse, indent=forwardIndent) -}}
{%- endif -%}
{%- endfor -%}
{%- else -%}
{%- for item in data -%}
{{- haproxy_config(item, indent=indent) -}}
{%- endfor -%}
{%- endif -%}
{%- if recurse > 0 -%}
{{ '\n' }}
{%- endif -%}
{%- endif -%}
{%- endmacro -%}
Values
haproxy:
global:
stats: socket /var/lib/haproxy/stats mode 660 level admin
ssl-default-bind-ciphers: "ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA384"
ssl-default-bind-options: "no-sslv3 no-tlsv10 no-tlsv11"
user: haproxy
group: haproxy
chroot: /var/lib/haproxy
tune.something.else: 2048
frontend:
http:
bind: 0.0.0.0:80
option: http-server-close
acl:
- host_static hdr_beg(host) -i static
- url_static path_beg static
#use_backend: static if host_static
#use_backend: static if url_static
default_backend: www
backend:
www:
balance: roundrobin
#server: www1 www1 check port 80
#server: www2 www2 check port 80
# server: www3 www3 check port 80
# server: load1 localhost:8080 backup
# static:
# server: media1 media1 check port 80
# server: media2 media2 check port 80
# server: load1 localhost:8080 backup
Output
backend www
balance roundrobin
frontend http
host_static hdr_beg(host) -i static
url_static path_beg static
bind 0.0.0.0:80
default_backend www
option http-server-close
global
chroot /var/lib/haproxy
daemon True
group haproxy
log
/dev/log local0
/dev/log local1 notice
ssl-default-bind-ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA384
ssl-default-bind-options no-sslv3 no-tlsv10 no-tlsv11
stats socket /var/lib/haproxy/stats mode 660 level admin
tune.something.else 2048
user haproxy
What I want
backend www
balance roundrobin
frontend http
acl host_static hdr_beg(host) -i static
acl url_static path_beg static
bind 0.0.0.0:80
default_backend www
option http-server-close
global
chroot /var/lib/haproxy
daemon True
group haproxy
log /dev/log local0
log /dev/log local1 notice
ssl-default-bind-ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA384
ssl-default-bind-options no-sslv3 no-tlsv10 no-tlsv11
stats socket /var/lib/haproxy/stats mode 660 level admin
tune.something.else 2048
user haproxy
Thanks

Answer 1

I think you need another section in the if else block {%- if data is mapping -%} that checks if it is a list and uses the following.
{%- for key, value in data.items() %}
{{key}} {{value}}
{%- endfor %}
possibly this
{%- set key = 0 -%}
{%- set value = 1 -%}
{%- set carryovers = ['frontend', 'backend',
'listen'] -%}
{%- macro haproxy_config(data, carryover='', recurse=-1, indent=0) -%}
{%- set recurse = recurse + 1 -%}
{%- if data is none -%}
{{- '\n' -}}
{%- elif data is string or data is number -%}
{{- data|string|indent(indent, True) }}{{ '\n' -}}
{%- else -%}
{%- if recurse > 0 -%}
{{- '\n' -}}
{%- set indent = indent + 2 -%}
{%- endif -%}
{%- if data is mapping -%}
{%- for item in data|dictsort -%}
{%- if item[key] in carryovers -%}
{{- haproxy_config(item[value], carryover=item[key], indent=indent) -}}
{%- else -%}
{%- set carryIndent = indent -%}
{%- set forwardIndent = indent -%}
{%- if carryover -%}
{{- carryover|indent(indent, True) }}{{ ' ' -}}
{%- set carryIndent = 0 -%}
{%- endif -%}
{%- if item[value] is string or item[value] is not iterable -%}
{%- set forwardIndent = 0 -%}
{%- endif -%}
{{- item[key]|indent(carryIndent, True) }} {{ haproxy_config(item[value], recurse=recurse, indent=forwardIndent) -}}
{%- endif -%}
{%- endfor -%}
{%- elif data is iterable and data is not string %}
{%- for key, value in data.items() %}
{{- '%s %s'|format(key, value)|indent(indent, True) }}
{%- endfor %}
{%- else -%}
{%- for item in data -%}
{{- haproxy_config(item, indent=indent) -}}
{%- endfor -%}
{%- endif -%}
{%- if recurse > 0 -%}