Add liveness probe for checking the content of allowlist using an nginx container

charts/queryservice/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v1
 appVersion: "1.0"
 description: A Helm chart for Kubernetes
 name: queryservice
-version: 0.2.1
+version: 0.2.2
 home: https://github.com/wbstack
 maintainers:
   - name: WBstack

charts/queryservice/templates/deployment.yaml

@@ -70,6 +70,27 @@ spec:
             #TODO allow passing value in values
           - name: WDQS_ENTITY_NAMESPACES
             value: 120,122
+      initContainers:
+        - name: queryservice-allowlist-nginx-sidecar
+          image: nginx
+          restartPolicy: {{ .Values.image.restartPolicy }}
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          livenessProbe:
+            httpGet:
+              path: /allowlist.txt
+              port: 8080
+            initialDelaySeconds: 5
+            periodSeconds: 5
+            #restart the container if it fails 3 times in 15 seconds
+            failureThreshold: 3
+          volumeMounts:
+          - mountPath: /wdqs/allowlist.txt
+            subPath: allowlist.txt
+            name: allowlist
+            readOnly: true
+          - mountPath: /etc/nginx/nginx.conf
+            subPath: nginx.conf
+            name: nginx-config
       volumes:
       - name: data
       {{- if .Values.persistence.enabled }}
@@ -81,6 +102,9 @@ spec:
       - name: allowlist
         configMap:
           name: {{ include "wdqs.fullname" . }}-allowlist
+      - name: nginx-config
+        configMap:
+          name: nginx-sidecar-config
       {{- with .Values.nodeSelector }}
       nodeSelector:
         {{- toYaml . | nindent 8 }}

charts/queryservice/templates/nginx-sidecar-config.yaml

@@ -0,0 +1,16 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: nginx-sidecar-config
+data:
+  nginx.conf: |
+    events {}
+    http {
+      server {
+        listen 8080;
+
+        location /allowlist.txt {
+          root /wdqs/;
+        }
+      }
+    }

charts/queryservice/values.yaml

@@ -9,6 +9,7 @@ image:
   repository: ghcr.io/wbstack/queryservice
   tag: "0.3.6_0.6"
   pullPolicy: IfNotPresent
+  restartPolicy: Always
 
 app:
   heapSize: 2g