[teamd]: wait for swss db flush done before starting teamd container

Signed-off-by: Jipan Yang <[email protected]>

Author: jipanyang

files/build_templates/docker_image_ctl.j2

@@ -1,5 +1,23 @@
 #!/bin/bash
 
+DEBUGLOG="/tmp/{{ docker_container_name }}_debug.log"
+
+function debug()
+{
+    /usr/bin/logger $1
+    /bin/echo `date` "- $1" >> ${DEBUGLOG}
+}
+
+function wait_for_swss_db_flush_done()
+{
+    debug "Start waiting for swss"
+    until [[ $(redis-cli -n 0 GET "SWSS_DB_FLUSH_DONE") ]]; do
+        debug "Wait 1 second for SWSS_DB_FLUSH_DONE"
+        sleep 1
+    done
+    debug "Swss db flush done"
+}
+
 function getMountPoint()
 {
     echo $1 | python -c "import sys, json, os; mnts = [x for x in json.load(sys.stdin)[0]['Mounts'] if x['Destination'] == '/usr/share/sonic/hwsku']; print '' if len(mnts) == 0 else os.path.basename(mnts[0]['Source'])" 2>/dev/null
@@ -36,6 +54,8 @@ function preStartAction()
         echo -n > /tmp/dump.rdb
         docker cp /tmp/dump.rdb database:/var/lib/redis/
     fi
+{%- elif docker_container_name == "teamd" %}
+    wait_for_swss_db_flush_done
 {%- else %}
     : # nothing
 {%- endif %}

files/scripts/swss.sh

@@ -97,6 +97,7 @@ start() {
         /usr/bin/docker exec database redis-cli -n 2 FLUSHDB
         /usr/bin/docker exec database redis-cli -n 5 FLUSHDB
         clean_up_tables 6 "'PORT_TABLE*', 'MGMT_PORT_TABLE*', 'VLAN_TABLE*', 'VLAN_MEMBER_TABLE*', 'INTERFACE_TABLE*', 'MIRROR_SESSION*', 'VRF_TABLE*'"
+        /usr/bin/docker exec database redis-cli -n 0 SET "SWSS_DB_FLUSH_DONE" "1"
     fi
 
     # start service docker