template - default variables prob...

result

## /etc/unicorn/blahblah.conf

RACK_ROOT="/srv/www/blahblah.muda.no"
IS_RAILS="True"
UNICORN_BIN="bundle exec bin/unicorn_rails"
UNICORN_PORT="None"                                 # <=========== WRONG!! WTF?!

# Export RACK_ENV.
export RACK_ENV="custom"

# Map other environment variables to set in launcher

export SHITFOO="custom"
export LOGIN="foo"


## /etc/unicorn/staging.conf

RACK_ROOT="/srv/www/staging.muda.no"
IS_RAILS="True"
UNICORN_BIN="bundle exec bin/unicorn"               # <=========== default value works here...
UNICORN_PORT="3000"

# Export RACK_ENV.
export RACK_ENV="production"

# Map other environment variables to set in launcher

unicorn-init.sls

# salt state init - only the relevant parts...
{% for svc in pillar['unicorn_services'] %}
/etc/unicorn/{{ svc.name }}.conf:
  file.managed:
    - source: salt://unicorn/etc/unicorn/unicorn.conf.jinja
    - template: jinja
    - user: www-data
    - group: www-data
    - context:
        name: {{ svc.name }}
        root: {{ svc.root }}
        unicorn_bin: {{ svc.unicorn_bin or "bundle exec bin/unicorn" }}
        unicorn_port: {{ svc.unicorn_port or "" }}                          # <======================= PROBLEM, returns "None"
        rack_env: {{ svc.rack_env or "production"}}
        rails: {{ svc.rails or "" }}
        environment: {{ svc.environment or {} }}
    - require:
      - file: /etc/unicorn
{% endfor %}

unicorn.conf.jinja

RACK_ROOT="{{ root }}"
IS_RAILS="{{ rails }}"
UNICORN_BIN="{{ unicorn_bin }}"
UNICORN_PORT="{{ unicorn_port }}"

# Export RACK_ENV.
export RACK_ENV="{{ rack_env }}"

# Map other environment variables to set in launcher
{% for k, v in environment.items() %}
export {{ k }}="{{ v }}"
{%- endfor %}

unicorn_services.sls

## Pillar data
unicorn_services:
  # first element should have no unicorn_port (should default to empty string)
  - name: blahblah
    root: /srv/www/blahblah.muda.no
    unicorn_bin: bundle exec bin/unicorn_rails
    rack_env: custom
    rails: True
    environment:
      SHITFOO: custom
      LOGIN: foo
  # second element should has a unicorn_port (is correctly set)
  - name: staging
    root: /srv/www/staging.muda.no
    unicorn_port: 3000
    rack_env: production
    rails: True