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

#!/bin/bash
{{ docker_bin_dir }}/docker run --rm \
  --net=host \
  --name=helm \
  -v /etc/ssl:/etc/ssl:ro \
  -v {{ helm_home_dir }}:{{ helm_home_dir }}:rw \
  {% for dir in ssl_ca_dirs -%}
  -v {{ dir }}:{{ dir }}:ro \
  {% endfor -%} 
  {% 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}}" \
  {% endif -%}
  {{ helm_image_repo }}:{{ helm_image_tag}} \
  "$@"