Add helm test for chart reranking-usvc

- Add helm test for chart

- Update the chart README

- Add flag autodependency.enabled=true to automatically install dependency charts

Signed-off-by: Lianhao Lu <[email protected]>

helm-charts/common/reranking-usvc/Chart.yaml

@@ -8,3 +8,8 @@ type: application
 version: 0.8.0
 # The reranking microservice server version
 appVersion: "1.0.0"
+dependencies:
+  - name: teirerank
+    version: 0.8.0
+    repository: file://../teirerank
+    condition: autodependency.enabled

helm-charts/common/reranking-usvc/README.md

@@ -2,15 +2,44 @@
 
 Helm chart for deploying reranking microservice.
 
-reranking-usvc depends on TEI, set the TEI_RERANKING_ENDPOINT as teirerank endpoint.
+reranking-usvc depends on teirerank, set the TEI_RERANKING_ENDPOINT as teirerank endpoint.
 
-## Installing the Chart
+## (Option1): Installing the chart separately:
 
-To install the chart, run the following:
+First, you need to install the teirerank chart, please refer to the [teirerank](../teirerank) chart for more information.
+
+After you've deployted the teirerank chart successfully, please run `kubectl get svc` to get the tei service endpoint, i.e. `http://teirerank`.
+
+To install the reranking-usvc chart, run the following:
 
 ```console
+cd GenAIInfra/helm-charts/common/reranking-usvc
 export TEI_RERANKING_ENDPOINT="http://teirerank"
-helm install reranking reranking-usvc --set TEI_RERANKING_ENDPOINT=${TEI_RERANKING_ENDPOINT}
+helm dependency update
+helm install reranking-usvc . --set TEI_RERANKING_ENDPOINT=${TEI_RERANKING_ENDPOINT}
+```
+
+## (Option2): Installing the chart with dependencies automatically:
+
+```console
+cd GenAIInfra/helm-charts/common/reranking-usvc
+helm dependency update
+helm install reranking-usvc . --set autodependency.enabled=true
+```
+
+## Verify
+
+To verify the installation, run the command `kubectl get pod` to make sure all pods are running.
+
+Then run the command `kubectl port-forward svc/reranking-usvc 8000:8000` to expose the reranking-usvc service for access.
+
+Open another terminal and run the following command to verify the service if working:
+
+```console
+curl http://localhost:8000/v1/reranking \
+    -X POST \
+    -d '{"initial_query":"What is Deep Learning?", "retrieved_docs": [{"text":"Deep Learning is not..."}, {"text":"Deep learning is..."}]}' \
+    -H 'Content-Type: application/json'
 ```
 
 ## Values

helm-charts/common/reranking-usvc/templates/tests/test-pod.yaml

@@ -0,0 +1,25 @@
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+apiVersion: v1
+kind: Pod
+metadata:
+  name: "{{ include "reranking-usvc.fullname" . }}-testpod"
+  labels:
+    {{- include "reranking-usvc.labels" . | nindent 4 }}
+  annotations:
+    "helm.sh/hook": test
+    #"helm.sh/hook-delete-policy": "hook-succeeded, hook-failure"
+spec:
+  containers:
+    - name: curl
+      image: alpine/curl
+      #image: python:3.10.14
+      command: ['sh', '-c']
+      args:
+        - |
+          curl http://{{ include "reranking-usvc.fullname" . }}:{{ .Values.service.port }}/v1/reranking -sS --fail-with-body \
+            -X POST \
+            -d '{"initial_query":"What is Deep Learning?", "retrieved_docs": [{"text":"Deep Learning is not..."}, {"text":"Deep learning is..."}]}' \
+            -H 'Content-Type: application/json'
+  restartPolicy: Never

helm-charts/common/reranking-usvc/values.yaml

@@ -5,6 +5,9 @@
 # This is a YAML-formatted file.
 # Declare variables to be passed into your templates.
 
+autodependency:
+  enabled: false
+
 replicaCount: 1
 
 TEI_RERANKING_ENDPOINT: ""