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NTP support for management VRF #3400

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kannankvs wants to merge 2 commits into from
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NTP support for management VRF #3400

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f78744f
Redoing the management VRF NTP changes with lo-m
kannankvs Aug 30, 2019
205a5ee
deleting lo-m during interface down added
kannankvs Aug 30, 2019
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3 changes: 3 additions & 0 deletions build_debian.sh
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Expand Up @@ -449,6 +449,9 @@ sudo cp files/dhcp/graphserviceurl $FILESYSTEM_ROOT/etc/dhcp/dhclient-exit-hooks
sudo cp files/dhcp/snmpcommunity $FILESYSTEM_ROOT/etc/dhcp/dhclient-exit-hooks.d/
sudo cp files/dhcp/vrf $FILESYSTEM_ROOT/etc/dhcp/dhclient-exit-hooks.d/
sudo cp files/dhcp/dhclient.conf $FILESYSTEM_ROOT/etc/dhcp/
if [ -f files/image_config/ntp/mgmtvrf_add_cgexec_to_ntp.sh ]; then
./files/image_config/ntp/mgmtvrf_add_cgexec_to_ntp.sh $FILESYSTEM_ROOT/etc/init.d/ntp
fi

## Version file
sudo mkdir -p $FILESYSTEM_ROOT/etc/sonic
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8 changes: 8 additions & 0 deletions files/image_config/interfaces/interfaces.j2
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Expand Up @@ -21,6 +21,14 @@ iface lo {{ 'inet' if prefix | ipv4 else 'inet6' }} static
netmask {{ prefix | netmask if prefix | ipv4 else prefix | prefixlen }}
#
{% endfor %}
# The loopback network interface for mgmt VRF that is required for applications like NTP
{% if (MGMT_VRF_CONFIG) and (MGMT_VRF_CONFIG['vrf_global']['mgmtVrfEnabled'] == "true") %}
up ip link add lo-m type dummy
up ip addr add 127.0.0.1/8 dev lo-m
up ip link set lo-m up
up ip link set dev lo-m master mgmt
down ip link delete dev lo-m
{% endif %}
{% endblock loopback %}
{% block mgmt_interface %}

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3 changes: 3 additions & 0 deletions files/image_config/ntp/mgmtvrf_add_cgexec_to_ntp.sh
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@@ -0,0 +1,3 @@
#!/bin/bash
sudo sed -i '/start-stop-daemon --start --quiet --oknodo --pidfile $PIDFILE --startas $DAEMON -- -p $PIDFILE $NTPD_OPTS/d' $1
sudo sed -i '/flock -w 180 9/a \\t\t\tvrfEnabled=$(/usr/local/bin/sonic-cfggen -d -v '"'MGMT_VRF_CONFIG[\"vrf_global\"][\"mgmtVrfEnabled\"]'"')\n\t\t\tif [ "$vrfEnabled" = "true" ]\n\t\t\tthen\n\t\t\t\tlog_daemon_msg "Starting NTP server in mgmt-vrf" "ntpd"\n\t\t\t\tcgexec -g l3mdev:mgmt start-stop-daemon --start --quiet --oknodo --pidfile $PIDFILE --startas $DAEMON -- -p $PIDFILE $NTPD_OPTS\n\t\t\telse\n\t\t\t\tlog_daemon_msg "Starting NTP server in default-vrf" "ntpd"\n\t\t\t\tstart-stop-daemon --start --quiet --oknodo --pidfile $PIDFILE --startas $DAEMON -- -p $PIDFILE $NTPD_OPTS\n\t\t\tfi' $1