helm template check for http/https_proxy

roles/kubernetes-apps/helm/templates/helm-container.j2

@@ -7,7 +7,7 @@
   {% for dir in ssl_ca_dirs -%}
   -v {{ dir }}:{{ dir }}:ro \
   {% endfor -%} 
-  {% if proxy_env is defined -%}
+  {% if http_proxy is defined or https_proxy is defined -%}
   -e http_proxy="{{proxy_env.http_proxy}}" \
   -e https_proxy="{{proxy_env.https_proxy}}" \
   -e no_proxy="{{proxy_env.no_proxy}}" \