Feature yang changes

src/sonic-yang-models/setup.py

@@ -52,6 +52,7 @@
                          './yang-models/sonic-device_neighbor.yang',
                          './yang-models/sonic-extension.yang',
                          './yang-models/sonic-flex_counter.yang',
+                         './yang-models/sonic-feature.yang',
                          './yang-models/sonic-interface.yang',
                          './yang-models/sonic-loopback-interface.yang',
                          './yang-models/sonic-mgmt_interface.yang',

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

@@ -907,6 +907,56 @@
         "PREFIX": {
             "prefix1|1|10.0.0.0/8|8..16": {
             }
+        },
+        "FEATURE": {
+            "bgp": {
+                "auto_restart": "enabled",
+                "has_global_scope": "False",
+                "has_per_asic_scope": "True",
+                "has_timer": "False",
+                "high_mem_alert": "disabled",
+                "state": "enabled"
+            },
+            "database": {
+                "auto_restart": "always_enabled",
+                "has_global_scope": "True",
+                "has_per_asic_scope": "True",
+                "has_timer": "False",
+                "high_mem_alert": "disabled",
+                "state": "always_enabled"
+            },
+            "snmp": {
+                "auto_restart": "enabled",
+                "has_global_scope": "True",
+                "has_per_asic_scope": "False",
+                "has_timer": "True",
+                "high_mem_alert": "disabled",
+                "state": "enabled"
+            },
+            "swss": {
+                "auto_restart": "enabled",
+                "has_global_scope": "False",
+                "has_per_asic_scope": "True",
+                "has_timer": "False",
+                "high_mem_alert": "disabled",
+                "state": "enabled"
+            },
+            "syncd": {
+                "auto_restart": "enabled",
+                "has_global_scope": "False",
+                "has_per_asic_scope": "True",
+                "has_timer": "False",
+                "high_mem_alert": "disabled",
+                "state": "enabled"
+            },
+            "lldp": {
+                "auto_restart": "enabled",
+                "has_global_scope": "False",
+                "has_per_asic_scope": "True",
+                "has_timer": "False",
+                "high_mem_alert": "disabled",
+                "state": "enabled"
+            }
         }
     },
 

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

@@ -0,0 +1,10 @@
+{
+    "FEATURE_WITH_CORRECT_VALUES": {
+        "desc": "CONFIG FEATURE TABLE WITH ALL THE CORRECT VALUES"
+    },
+    "FEATURE_WITH_INVALID_STATE" : {
+        "desc": "Referring invalid feature state.",
+        "eStrKey": "Pattern",
+        "eStr": ["enabled|disabled|always_enabled"]
+    }
+}

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

@@ -0,0 +1,66 @@
+{
+    "FEATURE_WITH_CORRECT_VALUES": {
+        "sonic-feature:sonic-feature": {
+            "sonic-feature:FEATURE": {
+                "FEATURE_LIST": [
+                    {
+                        "name": "database",
+                        "state": "always_enabled",
+                        "auto_restart": "always_enabled",
+                        "has_timer": false,
+                        "has_global_scope": true,
+                        "has_asic_scope": true
+                    },
+                    {
+                        "name": "swss",
+                        "state": "always_enabled",
+                        "auto_restart": "always_enabled",
+                        "has_timer": false,
+                        "has_global_scope": false,
+                        "has_asic_scope": true
+                    },
+                    {
+                        "name": "syncd",
+                        "state": "always_enabled",
+                        "auto_restart": "always_enabled",
+                        "has_timer": false,
+                        "has_global_scope": false,
+                        "has_asic_scope": true
+                    },
+                    {
+                        "name": "snmp",
+                        "state": "enabled",
+                        "auto_restart": "enabled",
+                        "has_timer": false,
+                        "has_global_scope": true,
+                        "has_asic_scope": false
+                    },
+                    {
+                        "name": "lldp",
+                        "state": "disabled",
+                        "auto_restart": "disabled",
+                        "has_timer": false,
+                        "has_global_scope": false,
+                        "has_asic_scope": true
+                    }
+                ]
+            }
+        }
+    },
+    "FEATURE_WITH_INVALID_STATE": {
+        "sonic-feature:sonic-feature": {
+            "sonic-feature:FEATURE": {
+                "FEATURE_LIST": [
+                    {
+                        "name": "database",
+                        "state": "dontcare",
+                        "auto_restart": "always_enabled",
+                        "has_timer": false,
+                        "has_global_scope": true,
+                        "has_asic_scope": true
+                    }
+                ]
+            }
+        }
+    }
+}

src/sonic-yang-models/yang-models/sonic-feature.yang

@@ -0,0 +1,71 @@
+module sonic-feature{
+
+    yang-version 1.1;
+
+    namespace "http://github.com/Azure/sonic-feature";
+    prefix port;
+
+    import sonic-types {
+        prefix stypes;
+    }
+
+    description "Feature Table yang Module for SONiC OS";
+
+    container sonic-feature {
+
+        container FEATURE {
+
+            description "feature table in config_db.json";
+
+            list FEATURE_LIST {
+
+                key "name";
+
+                leaf name {
+                    description "feature name in Feature table";
+                    type string {
+                        length 1..32;
+                    }
+                }
+
+                leaf state {
+                    description "state of the feature";
+                    type stypes:feature_state;
+                }
+
+                leaf auto_restart {
+                    type stypes:feature_state;
+
+                }
+
+                leaf has_timer {
+                    description "This configuration identicates if there is
+                                timer associated to this feature";
+                    type boolean;
+                    default false;
+                }
+
+                leaf has_global_scope {
+                    description "This configuration identicates there will only one service
+                                spawned for the device";
+                    type boolean;
+                    default false;
+                }
+
+                leaf has_asic_scope {
+                    description "This configuration identicates there will only one service
+                                spawned per asic";
+                    type boolean;
+                    default false;
+                }
+
+                leaf high_mem_alert {
+                    description "This configuration controls the trigger to generate
+                                alert on high memory utilization";
+                    type stypes:feature_state;
+                    default "disabled";
+                }
+            }
+        }
+    }
+}

src/sonic-yang-models/yang-models/sonic-types.yang

@@ -159,4 +159,10 @@ module sonic-types {
             pattern "0x8100|0x9100|0x9200|0x88a8|0x88A8";
         }
     }
+
+    typedef feature_state {
+        type string {
+            pattern "enabled|disabled|always_enabled";
+        }
+    }
 }