Split kvmtest t0 job into two jobs and run in parallel (#10044)

Why I did it
Introduce 2 sub jobs for kvmtest t0 job in sonic-mgmt repo in PR Azure/sonic-mgmt#4861
But in sonic-buildimage repo, because section parameter is null, it always run the part 2 test scripts in kvmtest t0 job.
It missed the part 1 test scripts in kvmtest.sh.

How I did it
Split kvmtest t0 job into two sub jobs such as sonic-mgmt repo and run them in parallel to save time.

How to verify it
Submit PR will trigger the pipeline to run.

Signed-off-by: Zhaohui Sun <zhaohuisun@microsoft.com>

.azure-pipelines/run-test-template.yml

@@ -7,6 +7,9 @@ parameters:
   type: string
 - name: ptf_name
   type: string
+- name: section
+  type: string
+  default: ''
 - name: image
   type: string
   default: sonic-vs.img.gz
@@ -43,7 +46,7 @@ steps:
 
 - script: |
     rm -rf $(Build.ArtifactStagingDirectory)/*
-    docker exec sonic-mgmt bash -c "/data/sonic-mgmt/tests/kvmtest.sh -en -T ${{ parameters.tbtype }} ${{ parameters.tbname }} ${{ parameters.dut }}"
+    docker exec sonic-mgmt bash -c "/data/sonic-mgmt/tests/kvmtest.sh -en -T ${{ parameters.tbtype }} ${{ parameters.tbname }} ${{ parameters.dut }} ${{ parameters.section }}"
   displayName: "Run tests"
 
 - script: |
@@ -75,17 +78,17 @@ steps:
   condition: succeededOrFailed()
 
 - publish: $(Build.ArtifactStagingDirectory)/kvmdump
-  artifact: sonic-buildimage.kvmtest.${{ parameters.tbtype}}.memdump@$(System.JobAttempt)
+  artifact: sonic-buildimage.kvmtest.${{ parameters.tbtype}}${{ parameters.section }}.memdump@$(System.JobAttempt)
   displayName: "Archive sonic kvm memdump"
   condition: failed()
 
 - publish: $(Build.ArtifactStagingDirectory)/logs
-  artifact: sonic-buildimage.kvmtest.${{ parameters.tbtype }}.log@$(System.JobAttempt)
+  artifact: sonic-buildimage.kvmtest.${{ parameters.tbtype }}${{ parameters.section }}.log@$(System.JobAttempt)
   displayName: "Archive sonic kvm logs"
   condition: succeededOrFailed()
 
 - task: PublishTestResults@2
   inputs:
     testResultsFiles: '$(Build.ArtifactStagingDirectory)/logs/**/*.xml'
-    testRunTitle: kvmtest.${{ parameters.tbtype }}
+    testRunTitle: kvmtest.${{ parameters.tbtype }}${{ parameters.section }}
   condition: succeededOrFailed()

azure-pipelines.yml

@@ -104,9 +104,9 @@ stages:
         testResultsFiles: '**/tr.xml'
         testRunTitle: vstest
 
-  - job:
+  - job: t0_part1
     pool: sonictest
-    displayName: "kvmtest-t0"
+    displayName: "kvmtest-t0-part1"
     timeoutInMinutes: 360
 
     steps:
@@ -116,6 +116,43 @@ stages:
         tbname: vms-kvm-t0
         ptf_name: ptf_vms6-1
         tbtype: t0
+        section: part-1
+
+  - job: t0_part2
+    pool: sonictest
+    displayName: "kvmtest-t0-part2"
+    timeoutInMinutes: 360
+
+    steps:
+    - template: .azure-pipelines/run-test-template.yml
+      parameters:
+        dut: vlab-01
+        tbname: vms-kvm-t0
+        ptf_name: ptf_vms6-1
+        tbtype: t0
+        section: part-2
+
+  - job:
+    pool: sonictest
+    displayName: "kvmtest-t0"
+    timeoutInMinutes: 360
+    dependsOn:
+    - t0_part1
+    - t0_part2
+    condition: always()
+    variables:
+      resultOfPart1: $[ dependencies.t0_part1.result ]
+      resultOfPart2: $[ dependencies.t0_part2.result ]
+
+    steps:
+    - script: |
+        if [ $(resultOfPart1) == "Succeeded" ] && [ $(resultOfPart2) == "Succeeded" ]; then
+          echo "Both job kvmtest-t0-part1 and kvmtest-t0-part2 are passed."
+          exit 0
+        else
+          echo "Either job kvmtest-t0-part1 or job kvmtest-t0-part2 failed! Please check the detailed information."
+          exit 1
+        fi
 
   - job:
     pool: sonictest-t1-lag