update for stacktrace

vector.yaml

@@ -5,7 +5,7 @@ data_dir: "/var/lib/vector"
 # Enable and try it out with the `vector top` command
 # NOTE: this is _enabled_ for helm chart deployments, see:.apps://github.com/vectordotdev/helm-charts/blob/develop/charts/vector/examples/datadog-values.yaml#L78-L81
 api:
-  enabled: false
+  enabled: true
 # address = "127.0.0.1:8686"
 
 sources:
@@ -18,7 +18,7 @@ transforms:
     inputs:
       - from_stdin
     source: >-
-      l = .
+      #l = .
 
       #log("!!! 1", level:"info", rate_limit_secs:0)
 
@@ -163,10 +163,18 @@ transforms:
       
         #log("!!! 2.1.10: {{m}}", level:"info", rate_limit_secs:0)
 
-        .app.attributes.hostname = "$HOSTNAME"
+        .app.attributes.stack_trace = if (exists(msg.stack_trace)) {
+          msg.stack_trace
+        } else {
+          ""
+        }
         
         #log("!!! 2.1.11: {{m}}", level:"info", rate_limit_secs:0)
 
+        .app.attributes.hostname = "$HOSTNAME"
+
+        #log("!!! 2.1.12: {{m}}", level:"info", rate_limit_secs:0)
+        
         .app.attributes.app_name = "${APP_NAME?Specify env.APP_NAME}"
       } else {
         #log("!!! 2.2: {{m}}", level:"warn", rate_limit_secs:0)