use symlink to fix testinfra iptables module

molecule/ec2-centos-7/playbook.yml

@@ -1,5 +1,15 @@
 ---
 - name: Converge
   hosts: all
+
+  pre_tasks:
+    - name: Add symlink for iptables
+      file:
+        src: /usr/sbin/iptables
+        dest: /usr/bin/iptables
+        owner: root
+        group: root
+        state: link
+
   roles:
     - role: xoxys.iptables

molecule/ec2-centos-7/tests/test_default.py

@@ -1,5 +1,4 @@
 import os
-import sys
 
 import testinfra.utils.ansible_runner
 
@@ -9,8 +8,6 @@ warnings.filterwarnings("ignore", category=DeprecationWarning)
 testinfra_hosts = testinfra.utils.ansible_runner.AnsibleRunner(
     os.environ['MOLECULE_INVENTORY_FILE']).get_hosts('all')
 
-sys.path.append('/usr/sbin')
-
 
 def test_iptables_is_installed(host):
     iptables = host.package("iptables")