fix netplan configuration for bond active-backup mode

[sab-systems]

• Set network bond in netplan configuration to 'active-backup'
  when getting mode: 1 from network_data.json
  netplan does not understand mode: 1 amymore in Ubuntu 18.04.
  Remove netplan configuration coming from cloud-init.

New release version: BMS_SETUP_1_6

[garloff]

Looks good to me.
I would suggest considering using TABs in clean_netplan_ifaces() as well.

[garloff]

Sidenote: I do not seem to have write permissions here, so the PR will need to be merged by someone with the right permissions.

[garloff]

commit 9aed9f5df8de620545048b412ac35781cb46739e
Author: Kurt Garloff <[email protected]>
Date:   Fri Dec 20 18:07:25 2019 +0100

    Replace some ws with TABs.

diff --git a/bms-network-setup.py b/bms-network-setup.py
index 6e4a7a7..f7c8f6a 100755
--- a/bms-network-setup.py
+++ b/bms-network-setup.py
@@ -24,7 +24,7 @@ def usage():
        six.print_("Usage: bms-network-setup.py [-d] [-o] [-c] [-s|u|r|n]", file=sys.stderr)
        six.print_(" -d: Debug: reads network_data.json and writes ifcfg-* in current dir", file=sys.stderr)
        six.print_(" -o: Own: bring interfaces down before enslaving them to a bond", file=sys.stderr)
-       six.print_(" -c: Remove ifcfg-e* ifor non-existing devices", file=sys.stderr)
+       six.print_(" -c: Remove ifcfg-e* for non-existing devices", file=sys.stderr)
        six.print_(" -s: SuSE: assume we run on a SuSE distribution", file=sys.stderr)
        six.print_(" -u: Debian: assume we run on a Debian/Ubuntu distribution", file=sys.stderr)
        six.print_(" -r: RedHat: assume we run on a RedHat/CentOS distribution", file=sys.stderr)
@@ -728,9 +728,9 @@ def clean_miss_ifaces(njson):
                os.unlink(cand)
 
 def clean_netplan_ifaces(njson):
-        ci_bond0_file = "/etc/netplan/50-cloud-init.yaml"
-        if os.path.exists(ci_bond0_file):
-            os.remove(ci_bond0_file)
+       ci_bond0_file = "/etc/netplan/50-cloud-init.yaml"
+       if os.path.exists(ci_bond0_file):
+               os.remove(ci_bond0_file)
 
 def process_network_hw():
        "get network_data.json and process it"