qa/tasks/cephfs/mount: use 'ip r' instead 'route'

Some linux host may not have 'route' installed. So, maybe,
prefer 'ip r' to find out which default gateway is configured.

Addresses error if there is no net-tools installed on ubuntu
remote hosts:
  route: command not found

Signed-off-by: Kyr Shatskyy <kyrylo.shatskyy@clyso.com>

diff --git a/qa/tasks/cephfs/mount.py b/qa/tasks/cephfs/mount.py
index ddf6c2657a0334676872fb70383857abafb8d139..57b3096c3c512f7fc06f69b9b8a4f43ce9eeb17d 100644 (file)
--- a/qa/tasks/cephfs/mount.py
+++ b/qa/tasks/cephfs/mount.py
@@ -296,12 +296,11 @@ class CephFSMountBase(object):
         self.client_remote.run(args=args, timeout=(5*60), omit_sudo=False)
         
         # Setup the NAT
-        p = self.client_remote.run(args=['route'], stderr=StringIO(),
-                                   stdout=StringIO(), timeout=(5*60))
-        p = re.findall(r'default .*', p.stdout.getvalue())
-        if p == False:
+        routes = self.client_remote.sh('ip r', timeout=(5*60))
+        defaults = re.findall(r'^default .*', routes)
+        if defaults == False:
             raise RuntimeError("No default gw found")
-        gw = p[0].split()[7]
+        gw = defaults[0].split()[4]
 
         self.run_shell_payload(f"""
             set -e
@@ -441,12 +440,12 @@ class CephFSMountBase(object):
         ip = IP(self.ceph_brx_net)[-2]
         mask = self.ceph_brx_net.split('/')[1]
 
-        p = self.client_remote.run(args=['route'], stderr=StringIO(),
-                                   stdout=StringIO(), timeout=(5*60))
-        p = re.findall(r'default .*', p.stdout.getvalue())
-        if p == False:
+        routes = self.client_remote.sh('ip r', timeout=(5*60))
+        defaults = re.findall(r'^default .*', routes)
+        if defaults == False:
             raise RuntimeError("No default gw found")
-        gw = p[0].split()[7]
+        gw = defaults[0].split()[4]
+
         self.run_shell_payload(f"""
             set -e
             sudo iptables -D FORWARD -o {gw} -i ceph-brx -j ACCEPT