fix: mount config.yaml as single file in Helm chart (#19146)

deploy/charts/litellm-helm/templates/deployment.yaml

@@ -170,7 +170,8 @@ spec:
             {{- toYaml .Values.resources | nindent 12 }}
           volumeMounts:
             - name: litellm-config
-              mountPath: /etc/litellm/
+              mountPath: /etc/litellm/config.yaml
+              subPath: config.yaml
           {{ if .Values.securityContext.readOnlyRootFilesystem }}
             - name: tmp
               mountPath: /tmp

deploy/charts/litellm-helm/tests/deployment_tests.yaml

@@ -136,7 +136,8 @@ tests:
           path: spec.template.spec.containers[0].volumeMounts
           content:
             name: litellm-config
-            mountPath: /etc/litellm/
+            mountPath: /etc/litellm/config.yaml
+            subPath: config.yaml
   - it: should work with lifecycle hooks
     template: deployment.yaml
     set: