[CI] Fix BWC related CI failures by swapping dist url with snapshot url

Signed-off-by: Manasvini B Suryanarayana <manasvis@amazon.com>

.github/workflows/build_and_test_workflow.yml

@@ -24,6 +24,7 @@ env:
   TEST_OPENSEARCH_DASHBOARDS_PORT: 6610
   TEST_OPENSEARCH_TRANSPORT_PORT: 9403
   TEST_OPENSEARCH_PORT: 9400
+  OPENSEARCH_SNAPSHOT_CMD: 'node ../scripts/opensearch snapshot'
   OSD_SNAPSHOT_SKIP_VERIFY_CHECKSUM: true
   NODE_OPTIONS: "--max-old-space-size=6144 --dns-result-order=ipv4first"
 
@@ -346,7 +347,7 @@ jobs:
 
       - name: Set OpenSearch URL
         run: |
-          echo "OPENSEARCH_URL=https://ci.opensearch.org/ci/dbc/distribution-build-opensearch/${{ env.VERSION }}/latest/linux/x64/tar/dist/opensearch/opensearch-${{ env.VERSION }}-linux-x64.tar.gz" >> $GITHUB_ENV
+          echo "OPENSEARCH_URL=https://artifacts.opensearch.org/snapshots/core/opensearch/${{ env.VERSION }}-SNAPSHOT/opensearch-min-${{ env.VERSION }}-SNAPSHOT-linux-x64-latest.tar.gz" >> $GITHUB_ENV
 
       - name: Verify if OpenSearch is available for version
         id: verify-opensearch-exists

scripts/bwc/opensearch_service.sh

@@ -24,7 +24,12 @@ function setup_opensearch() {
 function run_opensearch() {
   echo "[ Attempting to start OpenSearch... ]"
   cd "$OPENSEARCH_DIR"
-  spawn_process_and_save_PID "./opensearch-tar-install.sh > ${LOGS_DIR}/opensearch.log 2>&1 &"
+  # Check if opensearch-tar-install.sh exists
+  if [ -f "./opensearch-tar-install.sh" ]; then
+    spawn_process_and_save_PID "./opensearch-tar-install.sh > ${LOGS_DIR}/opensearch.log 2>&1 &"
+  else
+    spawn_process_and_save_PID "./bin/opensearch/ > ${LOGS_DIR}/opensearch.log 2>&1 &"
+  fi
 }
 
 # Checks the running status of OpenSearch