Use JSON import for environment variables

The env can be provided as a JSON list `[{"name": "PORT", "value": "8080"}]`.
The `dict2items` filter provided by ansible is _almost_ what we want, but it
keeps the value original types (a boolean is kept as a boolean in the JSON value).
Since environment variables are strings and `clever-tools` does not want to make
the implicit coercion for us, we need to do it ourselves.

1 files changed, 7 insertions, 6 deletions

diff --git a/templates/env.j2 b/templates/env.j2
index 30bda82..e97ef43 100644
--- a/templates/env.j2
+++ b/templates/env.j2
@@ -1,9 +1,10 @@
-{% for key, value in (clever_base_env | combine(clever_env)).items() %}
-{{ key }}={{ value | to_json }}
-{% endfor %}
-
-{%- if clever_haskell_entry_point %}
+{% set static_env = clever_base_env | combine(clever_env) %}
+{% set dynamic_env = {} %}
+{% if clever_haskell_entry_point %}
 {# Haskell only #}
 {# https://www.clever-cloud.com/doc/get-help/reference-environment-variables/#haskell #}
-CC_RUN_COMMAND={{'~/.local/bin/' + clever_haskell_entry_point | to_json }}
+{% set dynamic_env = { 'CC_RUN_COMMAND': '~/.local/bin/' + clever_haskell_entry_point } %}
 {% endif %}
+{# dict2items is not enough here, all the values have to be stringified #}
+{# git-blame this line for more explanations #}
+{{ static_env | combine(dynamic_env) | json_env_map | to_json }}