add searxng deployment, service, PVC, and sealed secret configuration

clusters/default/tools/searxng/searxng.yml

@@ -0,0 +1,38 @@
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: searxng
+  namespace: tools
+spec:
+  strategy:
+    type: Recreate
+  replicas: 1
+  selector:
+    matchLabels:
+      app: searxng
+  template:
+    metadata:
+      labels:
+        app: searxng
+    spec:
+      containers:
+      - name: searxng
+        image: searxng/searxng@sha256:1458a9e6df554fa0306f2f4b770e2e49ad49dc726dddaa598eb4613718cb3b81
+        ports:
+        - containerPort: 8080
+        env:
+        - name: "INSTANCE_NAME"
+          value: "searxng"
+        - name: BASE_URL
+          valueFrom:
+            secretKeyRef:
+              name: searxng-secret
+              key: BASE_URL
+        volumeMounts:
+        - name: searxng
+          mountPath: /etc/searxng
+      volumes:
+      - name: searxng
+        persistentVolumeClaim:
+          claimName: searxng-longhorn