Fix linter errors on netstat role

roles/netstat/tasks/main.yml

@@ -13,7 +13,7 @@
     dest: "{{ home }}/eth-netstats"
     version: "cb431d6"
 
-- name: Set owner and group on eth-netstats files 
+- name: Set owner and group on eth-netstats files
   file: path={{ home }}/eth-netstats owner={{ username }} group={{ username }} recurse=yes
 
 - name: install npm netstats
@@ -33,9 +33,13 @@
   shell: "cd /home/{{ username }}/eth-netstats; grunt"
   become: true
   become_user: "{{ username }}"
+  args:
+    creates: "/home/{{ username }}/dist"
 
 - name: Config ws_secret.json file
-  shell: "echo '[\"{{ NETSTATS_SECRET }}\"]' > /home/{{ username }}/eth-netstats/ws_secret.json"
+  copy:
+    content: '["{{ NETSTATS_SECRET }}"]'
+    dest: "/home/{{ username }}/eth-netstats/ws_secret.json"
   notify:
     - restart poa-dashboard