Fix waiting for interfaces to get set up

Author: saiarcot895

dockers/docker-dhcp-relay/start.sh

@@ -6,7 +6,7 @@ rm -f /var/run/rsyslogd.pid
 # Start rsyslog
 supervisorctl start rsyslogd
 
-# If our supervisor config has entries in the "isc-dhcp-relay" group...
+# If our supervisor config has entries in the "dhcp-relay" group...
 if [ $(supervisorctl status | grep -c "^dhcp-relay:") -gt 0 ]; then
     # Wait for all interfaces to come up and be assigned IPv4 addresses before
     # starting the DHCP relay agent(s). If an interface the relay should listen

dockers/docker-dhcp-relay/wait_for_intf.sh.j2

@@ -40,3 +40,8 @@ wait_until_iface_ready {{ name }} {{ prefix }}
 wait_until_iface_ready {{ name }} {{ prefix }}
 {% endif %}
 {% endfor %}
+
+# Wait 10 seconds for the rest of interfaces to get added/populated.
+# dhcrelay listens on each of the interfaces (in addition to the port
+# channels and vlan interfaces)
+sleep 10

src/sonic-config-engine/tests/sample_output/wait_for_intf.sh

@@ -31,3 +31,7 @@ wait_until_iface_ready PortChannel02 10.0.0.58/31
 wait_until_iface_ready PortChannel03 10.0.0.60/31
 wait_until_iface_ready PortChannel04 10.0.0.62/31
 
+# Wait 10 seconds for the rest of interfaces to get added/populated.
+# dhcrelay listens on each of the interfaces (in addition to the port
+# channels and vlan interfaces)
+sleep 10