Move warm_restart enable/disable config to stateDB WARM_RESTART_ENABLE_TABLE (sonic-net#786)

Signed-off-by: Jipan Yang <jipan.yang@alibaba-inc.com>

Author: jipanyang

doc/swss-schema.md

@@ -695,10 +695,6 @@ Stores information for physical switch ports managed by the switch chip. Ports t
 
     key                 = WARM_RESTART:name ; name is the name of SONiC docker or "system" for global configuration.
 
-    enable              = "true" / "false"  ; Default value as false.
-                                            ; If "system" warm start knob is true, docker level knob will be ignored.
-                                            ; If "system" warm start knob is false, docker level knob takes effect.
-
     neighsyncd_timer    = 1*4DIGIT          ; neighsyncd_timer is the timer used for neighsyncd during the warm restart.
                                             ; Timer is started after we restored the neighborTable to internal data structures.
                                             ; neighborsyncd then starts to read all linux kernel entries and mark the entries in
@@ -715,8 +711,8 @@ Stores information for physical switch ports managed by the switch chip. Ports t
                                             ; Supported range: 1-3600.
 
     teamsyncd_timer     = 1*4DIGIT          ; teamsyncd_timer holds the time interval utilized by teamsyncd during warm-restart episodes.
-                                            ; The timer is started when teamsyncd starts. During the timer interval teamsyncd 
-                                            ; will preserver all LAG interface changes, but it will not apply them. The changes 
+                                            ; The timer is started when teamsyncd starts. During the timer interval teamsyncd
+                                            ; will preserver all LAG interface changes, but it will not apply them. The changes
                                             ; will only be applied when the timer expired. During the changes application the stale
                                             ; LAG entries will be removed, the new LAG entries will be created.
                                             ; Supported range: 1-9999. 0 is invalid
@@ -762,6 +758,17 @@ Stores information for physical switch ports managed by the switch chip. Ports t
     key                 = MGMT_PORT_TABLE|ifname    ; ifname must be unique across PORT,INTF,VLAN,LAG TABLES
     oper_status         = "down" / "up" ; oper status
 
+### WARM\_RESTART\_ENABLE\_TABLE
+    ;Stores system warm start and docker warm start enable/disable configuration
+    ;The configuration is persistent across warm reboot but not cold reboot.
+    ;Status: work in progress
+
+    key                 = WARM_RESTART_ENABLE_TABLE:name ; name is the name of SONiC docker or "system" for global configuration.
+
+    enable              = "true" / "false"  ; Default value as false.
+                                            ; If "system" warm start knob is true, docker level knob will be ignored.
+                                            ; If "system" warm start knob is false, docker level knob takes effect.
+
 ### WARM\_RESTART\_TABLE
     ;Stores application and orchdameon warm start status
     ;Status: work in progress

tests/test_warm_reboot.py

@@ -948,19 +948,6 @@ def set_restart_timer(dvs, db, app_name, value):
         ]
     )
 
-
-# Temporary instruction to activate warm_restart. To be deleted once equivalent CLI
-# function is pushed to sonic-utils.
-def enable_warmrestart(dvs, db, app_name):
-    create_entry_tbl(
-        db,
-        swsscommon.CFG_WARM_RESTART_TABLE_NAME, app_name,
-        [
-            ("enable", "true"),
-        ]
-    )
-
-
 ################################################################################
 #
 # Routing warm-restart testcases
@@ -1096,10 +1083,9 @@ def test_routing_WarmRestart(dvs, testlog):
     # Enabling bgp warmrestart and setting restart timer.
     # The following two instructions will be substituted by the commented ones
     # once the later ones are added to sonic-utilities repo.
-    enable_warmrestart(dvs, conf_db, "bgp")
-    set_restart_timer(dvs, conf_db, "bgp", str(restart_timer))
-    #dvs.runcmd("config warm_restart enable bgp")
-    #dvs.runcmd("config warm_restart bgp_timer {}".format(restart_timer))
+
+    dvs.runcmd("config warm_restart enable bgp")
+    dvs.runcmd("config warm_restart bgp_timer {}".format(restart_timer))
 
     time.sleep(1)