Merge pull request #1251 from FengyunPan/fix-helm-home

Specify a dir and attach it to helm for HELM_HOME

roles/kubernetes-apps/helm/defaults/main.yml

 helm_enabled: false
+
+# specify a dir and attach it to helm for HELM_HOME.
+helm_home_dir: "/root/.helm"

roles/kubernetes-apps/helm/tasks/main.yml

 ---
+- name: Helm | Make sure HELM_HOME directory exists
+  file: path={{ helm_home_dir }} state=directory
+
 - name: Helm | Set up helm launcher
   template:
     src: helm-container.j2

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

@@ -3,6 +3,7 @@
   --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 -%}