add if statement for service name

telemetry-dispatch-load-base-env-vars/action.yml

@@ -5,6 +5,12 @@ description: |
   in their pipelines.
 
   Outputs here are all assumed to be env vars set in the calling environment
+inputs:
+  load_service_name:
+    description: |
+      If true, loads OTEL_SERVICE_NAME from the stashed env vars. This is used for top-level workflows.
+      Otherwise the telemetry service name is obtained from Github job metadata. This is for child workflows.
+    default: 'false'
 
 runs:
   using: 'composite'
@@ -15,5 +21,8 @@ runs:
         repository: ${{ env.SHARED_ACTIONS_REPO}}
         ref: ${{ env.SHARED_ACTIONS_REF}}
         path: ./shared-actions
-    - name: Stash base env vars
+    - name: Set OTEL_SERVICE_NAME from job if not loading from stash
+      if: ${{ inputs.load_service_name != 'true' }}
+      uses: ./shared-actions/telemetry-impls/_set-otel-service-name
+    - name: Load base env vars
       uses: ./shared-actions/telemetry-impls/_load-base-env-vars

telemetry-impls/_set-otel-service-name/action.yml

@@ -20,5 +20,6 @@ runs:
         echo JOB_NAME="$(cat job_info.json | jq -r '.name')" >> ${GITHUB_OUTPUT};
     - shell: bash
       id: set-otel-service-name-env
+      if: ${{ env.OTEL_SERVICE_NAME == "" }}
       run: |
         echo OTEL_SERVICE_NAME="${{ steps.get-job-name.outputs.JOB_NAME}}" >> ${GITHUB_ENV};