[ovs/dpdk] Add opnfv.route_wrapper sls

- fix `route-br-ex` if-up.d script failing when route already exists
  by adding a wrapper around distro's '/sbin/route' binary in
  '/usr/local/sbin/route', exploiting default order in Ubuntu PATH;
- fix 'br-prv' duplicate entry in 'interfaces.d/ifcfg-br-prv' and
  'interfaces' caused by upstream bug [1];
- add barrier waiting for all baremetal nodes online before attempting
  reboot, trying to catch rare failures which are undetectable in logs
  as both a succesful reboot and a disconneted minion report 'n/c';

With the above in place, networking service should no longer fail
to start on cmp nodes w/ DPDK.

[1] https://github.com/saltstack/salt/issues/40262

Change-Id: I6d4895376ce323c14c997e6c9af2ea3eeeee0184
Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

1 files changed, 27 insertions, 0 deletions

diff --git a/mcp/salt-formulas/opnfv/route_wrapper.sls b/mcp/salt-formulas/opnfv/route_wrapper.sls
new file mode 100644
index 000000000..6132f317e
--- /dev/null
+++ b/mcp/salt-formulas/opnfv/route_wrapper.sls
@@ -0,0 +1,27 @@
+##############################################################################
+# Copyright (c) 2018 Mirantis Inc., Enea AB and others.
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+##############################################################################
+/usr/local/sbin/route:
+  file.managed:
+    - contents: |
+        #!/bin/sh
+
+        # Workaround salt-managed routes breaking ifup when route already exists
+        route_binary='/sbin/route'
+        route_output=$("${route_binary}" "$@" 2>&1)
+        route_return=$?
+
+        if [ -n "${route_output}" ]; then
+            if echo "${route_output}" | grep -q 'SIOCADDRT: File exists'; then
+                exit 0
+            fi
+            echo "${route_output}"
+        fi
+        exit "${route_return}"
+    - user: root
+    - group: root
+    - mode: 755