Update impact area testing algorithm

.azure-pipelines/baseline_test/baseline.test.mgmt.public.yml

@@ -0,0 +1,88 @@
+name: BaselineTest_$(Build.DefinitionName)_$(SourceBranchName)_$(Date:yyyyMMdd)$(Rev:.r)
+
+trigger: none
+pr: none
+
+schedules:
+  - cron: "0 8 * * *"
+    displayName: Baseline test Scheduler
+    branches:
+      include:
+        - master
+    always: true
+
+parameters:
+  - name: BUILD_REASON
+    type: string
+    default: "BaselineTest"
+
+  - name: TEST_PLAN_NUM
+    type: string
+    default: $(BASELINE_MGMT_PUBLIC_MASTER_TEST_NUM)
+
+  - name: RETRY_TIMES
+    type: string
+    default: "0"
+
+  - name: TEST_PLAN_STOP_ON_FAILURE
+    type: string
+    default: "False"
+
+variables:
+  - group: SONiC-Elastictest
+  - name: inventory
+    value: veos_vtb
+  - name: testbed_file
+    value: vtestbed.yaml
+  - name: BUILD_BRANCH
+    ${{ if eq(variables['Build.Reason'], 'PullRequest') }}:
+      value: $(System.PullRequest.TargetBranch)
+    ${{ else }}:
+      value: $(Build.SourceBranchName)
+
+stages:
+
+- stage: Test_round_1
+  jobs:
+  - template: ../pr_test_template.yml
+    parameters:
+      BUILD_REASON: ${{ parameters.BUILD_REASON }}
+      TEST_PLAN_NUM: ${{ parameters.TEST_PLAN_NUM }}
+      RETRY_TIMES: ${{ parameters.RETRY_TIMES }}
+      TEST_PLAN_STOP_ON_FAILURE: ${{ parameters.TEST_PLAN_STOP_ON_FAILURE }}
+
+- stage: Test_round_2
+  dependsOn:
+  - Test_round_1
+  condition: succeededOrFailed('Test_round_1')
+  jobs:
+  - template: ../pr_test_template.yml
+    parameters:
+      BUILD_REASON: ${{ parameters.BUILD_REASON }}
+      TEST_PLAN_NUM: ${{ parameters.TEST_PLAN_NUM }}
+      RETRY_TIMES: ${{ parameters.RETRY_TIMES }}
+      TEST_PLAN_STOP_ON_FAILURE: ${{ parameters.TEST_PLAN_STOP_ON_FAILURE }}
+
+- stage: Test_round_3
+  dependsOn:
+  - Test_round_2
+  condition: succeededOrFailed('Test_round_2')
+  jobs:
+  - template: ../pr_test_template.yml
+    parameters:
+      BUILD_REASON: ${{ parameters.BUILD_REASON }}
+      TEST_PLAN_NUM: ${{ parameters.TEST_PLAN_NUM }}
+      RETRY_TIMES: ${{ parameters.RETRY_TIMES }}
+      TEST_PLAN_STOP_ON_FAILURE: ${{ parameters.TEST_PLAN_STOP_ON_FAILURE }}
+
+- stage: Test_round_4
+  dependsOn:
+  - Test_round_3
+  condition: succeededOrFailed('Test_round_3')
+  jobs:
+  - template: ../pr_test_template.yml
+    parameters:
+      BUILD_REASON: ${{ parameters.BUILD_REASON }}
+      TEST_PLAN_NUM: ${{ parameters.TEST_PLAN_NUM }}
+      RETRY_TIMES: ${{ parameters.RETRY_TIMES }}
+      TEST_PLAN_STOP_ON_FAILURE: ${{ parameters.TEST_PLAN_STOP_ON_FAILURE }}