SONiC Yang for Warm Restart

src/sonic-yang-models/setup.py

@@ -73,6 +73,7 @@
                          './yang-models/sonic-versions.yang',
                          './yang-models/sonic-vlan.yang',
                          './yang-models/sonic-vrf.yang',
+                         './yang-models/sonic-warm-restart.yang',
                          './yang-models/sonic-lldp.yang',
                          './yang-models/sonic_yang_tree']),
     ],

src/sonic-yang-models/tests/files/sample_config_db.json

@@ -879,6 +879,13 @@
                 "polling_interval": "0"
             }
         },
+
+        "WARM_RESTART": {
+            "bgp": {
+                "bgp_timer": "500"
+            }
+        },
+
         "PFC_WD": {
             "Ethernet9": {
                "action": "drop",

src/sonic-yang-models/tests/yang_model_tests/tests/warm_restart.json

@@ -0,0 +1,33 @@
+{
+    "WARM_RESTART_TEST": {
+        "desc": "Configure an entry in WARM_RESTART table."
+    },
+    "WARM_RESTART_WITH_MUST_CONDITION_FAILURE_TEST_FOR_BGP_EOIU": {
+        "desc": "Configuration of bgp eoiu with incorrect module name.",
+        "eStr" : ["bgp_eoiu is only supported for module bgp"]
+    },
+    "WARM_RESTART_WITH_MUST_CONDITION_FAILURE_TEST_FOR_BGP_TIMER": {
+        "desc": "Configuration of bgp timer with incorrect module name.",
+        "eStr" : ["bgp_timer is only supported for module bgp"]
+    },
+    "WARM_RESTART_WITH_MUST_CONDITION_FAILURE_TEST_FOR_TEAMSYNCD_TIMER": {
+        "desc": "Configuration of teamsyncd timer with incorrect module name.",
+        "eStr" : ["teamsyncd_timer is only supported for module teamd"]
+    },
+    "WARM_RESTART_WITH_MUST_CONDITION_FAILURE_TEST_FOR_NEIGHSYNCD_TIMER": {
+        "desc": "Configuration of neighsyncd timer with incorrect module name.",
+        "eStr" : ["neighsyncd_timer is only supported for module swss"]
+    },
+    "WARM_RESTART_TEST_WITH_INCORRECT_BGP_TIMER": {
+        "desc": "Configure Warm restart for bgp module with an out of range bgp timer.",
+        "eStr": ["Timer must be 1..3600"]
+    },
+    "WARM_RESTART_TEST_WITH_INCORRECT_TEAMSYNCD_TIMER": {
+        "desc": "Configure Warm restart for teamsyncd module with an out of range teamsyncd timer.",
+        "eStr": ["Timer must be 1..3600"]
+    },
+    "WARM_RESTART_TEST_WITH_INCORRECT_NEIGHSYNCD_TIMER": {
+        "desc": "Configure Warm restart for neighsyncd module with an out of range neighsyncd timer.",
+        "eStr": ["Timer must be 1..9999"]
+    }
+}

src/sonic-yang-models/tests/yang_model_tests/tests_config/warm_restart.json

@@ -0,0 +1,92 @@
+{
+    "WARM_RESTART_TEST": {
+        "sonic-warm-restart:sonic-warm-restart": {
+            "sonic-warm-restart:WARM_RESTART": {
+                "WARM_RESTART_LIST": [{
+                        "module": "bgp",
+                        "bgp_eoiu": true, 
+                        "bgp_timer": 500
+                }]
+            }
+        }
+    },
+
+    "WARM_RESTART_WITH_MUST_CONDITION_FAILURE_TEST_FOR_BGP_EOIU": {
+        "sonic-warm-restart:sonic-warm-restart": {
+            "sonic-warm-restart:WARM_RESTART": {
+                "WARM_RESTART_LIST": [{
+                        "module": "teamd",
+                        "bgp_eoiu": true
+                }]
+            }
+        }
+    },
+
+    "WARM_RESTART_WITH_MUST_CONDITION_FAILURE_TEST_FOR_BGP_TIMER": {
+        "sonic-warm-restart:sonic-warm-restart": {
+            "sonic-warm-restart:WARM_RESTART": {
+                "WARM_RESTART_LIST": [{
+                        "module": "teamd",
+                        "bgp_timer": 500
+                }]
+            }
+        }
+    },
+
+    "WARM_RESTART_WITH_MUST_CONDITION_FAILURE_TEST_FOR_TEAMSYNCD_TIMER": {
+        "sonic-warm-restart:sonic-warm-restart": {
+            "sonic-warm-restart:WARM_RESTART": {
+                "WARM_RESTART_LIST": [{
+                        "module": "bgp",
+                        "teamsyncd_timer": 500
+                }]
+            }
+        }
+    },
+
+    "WARM_RESTART_WITH_MUST_CONDITION_FAILURE_TEST_FOR_NEIGHSYNCD_TIMER": {
+        "sonic-warm-restart:sonic-warm-restart": {
+            "sonic-warm-restart:WARM_RESTART": {
+                "WARM_RESTART_LIST": [{
+                        "module": "bgp",
+                        "neighsyncd_timer": 500
+                }]
+            }
+        }
+    },
+
+    "WARM_RESTART_TEST_WITH_INCORRECT_BGP_TIMER": {
+        "sonic-warm-restart:sonic-warm-restart": {
+            "sonic-warm-restart:WARM_RESTART": {
+                "WARM_RESTART_LIST": [{
+                        "module": "bgp",
+                        "bgp_timer": 3601
+                }]
+            }
+        }
+    },
+
+    "WARM_RESTART_TEST_WITH_INCORRECT_TEAMSYNCD_TIMER": {
+        "sonic-warm-restart:sonic-warm-restart": {
+            "sonic-warm-restart:WARM_RESTART": {
+                "WARM_RESTART_LIST": [{
+                        "module": "teamd",
+                        "teamsyncd_timer": 3601
+                }]
+            }
+        }
+    },
+
+    "WARM_RESTART_TEST_WITH_INCORRECT_NEIGHSYNCD_TIMER": {
+        "sonic-warm-restart:sonic-warm-restart": {
+            "sonic-warm-restart:WARM_RESTART": {
+                "WARM_RESTART_LIST": [{
+                        "module": "swss",
+                        "neighsyncd_timer": 0
+                }]
+            }
+        }
+    }
+
+}
+

src/sonic-yang-models/yang-models/sonic-warm-restart.yang

@@ -0,0 +1,105 @@
+module sonic-warm-restart  {
+
+    yang-version 1.1;
+
+    namespace "http://github.com/Azure/sonic-warm-restart";
+    prefix wrm;
+
+    description "SONIC WARMRESTART";
+
+    revision 2021-05-24 {
+        description "First Revision";
+    }
+
+    typedef module-name {
+
+        type enumeration {
+
+            enum bgp {
+               description
+                 "BGP module";
+            }
+
+            enum teamd {
+               description
+                 "Teamd module";
+            }
+
+            enum swss {
+               description
+                 "Switch State Services module";
+            }
+
+            enum system {
+               description
+                 "Warm Restart on a System level.";
+            }
+
+        }
+
+        description
+            "The modules supported in warm-restart";
+    }
+
+
+    container sonic-warm-restart {
+        container WARM_RESTART {
+
+            list WARM_RESTART_LIST {
+                key "module";
+
+                leaf module {
+                    type module-name;
+                    description
+                       "Name of the module";
+                }
+
+                leaf bgp_eoiu {
+                    type boolean;
+                    must "current()/../module = 'bgp'" { error-message "bgp_eoiu is only supported for module bgp."; }
+                    description
+                       "BGP End-of-Initial Update (EOIU) signal enable/disable";
+                }
+
+                leaf bgp_timer {
+                    type uint16 {
+                        range "1..3600" {
+                            error-message "Timer must be 1..3600";
+                            error-app-tag timer-invalid;
+                        }
+                    }
+                    must "current()/../module = 'bgp'" { error-message "bgp_timer is only supported for module bgp."; }
+                    description
+                       "Timer value for BGP module";
+                }
+
+                leaf teamsyncd_timer {
+                    type uint16 {
+                        range "1..3600" {
+                            error-message "Timer must be 1..3600";
+                            error-app-tag timer-invalid;
+                        }
+                    }
+                    must "current()/../module = 'teamd'" { error-message "teamsyncd_timer is only supported for module teamd."; }
+                    description
+                       "Timer value for teamd module";
+                }
+
+                leaf neighsyncd_timer {
+                    type uint16 {
+                        range "1..9999" {
+                            error-message "Timer must be 1..9999";
+                            error-app-tag timer-invalid;
+                        }
+                    }
+                    must "current()/../module = 'swss'" { error-message "neighsyncd_timer is only supported for module swss."; }
+                    description
+                       "Timer value for swss module";
+                }
+
+            } /* end of list WARM_RESTART_LIST */
+        } /* end of container WARM_RESTART */
+    } /* end of container sonic-warm-restart */
+
+
+} /* end of module sonic-warm-restart */