From 4b89b9a6dc7dfdab86571328e29c6f336cc165bb Mon Sep 17 00:00:00 2001
From: Stefan Reimer <stefan@zero-downtime.net>
Date: Wed, 11 Aug 2021 14:59:44 +0200
Subject: [PATCH] feat: add Istio support for NATS mqtt

---
 charts/kubezero-mq/Chart.yaml                 |  2 +-
 .../templates/nats/istio-service.yaml         | 22 +++++++++++++++++++
 charts/kubezero-mq/values.yaml                |  5 +++++
 3 files changed, 28 insertions(+), 1 deletion(-)
 create mode 100644 charts/kubezero-mq/templates/nats/istio-service.yaml

diff --git a/charts/kubezero-mq/Chart.yaml b/charts/kubezero-mq/Chart.yaml
index 0f65f564..c7caea3e 100644
--- a/charts/kubezero-mq/Chart.yaml
+++ b/charts/kubezero-mq/Chart.yaml
@@ -2,7 +2,7 @@ apiVersion: v2
 name: kubezero-mq
 description: KubeZero umbrella chart for MQ systems like NATS, RabbitMQ
 type: application
-version: 0.2.1
+version: 0.2.2
 home: https://kubezero.com
 icon: https://cdn.zero-downtime.net/assets/kubezero/logo-small-64.png
 keywords:
diff --git a/charts/kubezero-mq/templates/nats/istio-service.yaml b/charts/kubezero-mq/templates/nats/istio-service.yaml
new file mode 100644
index 00000000..1d867eec
--- /dev/null
+++ b/charts/kubezero-mq/templates/nats/istio-service.yaml
@@ -0,0 +1,22 @@
+{{- if .Values.nats.istio.enabled }}
+apiVersion: networking.istio.io/v1beta1
+kind: VirtualService
+metadata:
+  name: {{ .Release.Name }}-nats
+  namespace: {{ .Release.Namespace }}
+  labels:
+{{ include "kubezero-lib.labels" . | indent 4 }}
+spec:
+  hosts:
+  - {{ .Values.nats.istio.url }}
+  gateways:
+  - {{ .Values.nats.istio.gateway }}
+  tcp:
+  - match:
+    - port: 1883
+    route:
+    - destination:
+        host: {{ .Release.Name }}-nats
+        port:
+          number: 1883
+{{- end }}
diff --git a/charts/kubezero-mq/values.yaml b/charts/kubezero-mq/values.yaml
index ae0b0fb0..01334255 100644
--- a/charts/kubezero-mq/values.yaml
+++ b/charts/kubezero-mq/values.yaml
@@ -18,6 +18,11 @@ nats:
   mqtt:
     enabled: false
 
+  istio:
+    enabled: false
+    # url: "mq.example.com"
+    gateway: istio-ingress/private-ingressgateway
+
 # rabbitmq
 rabbitmq:
   enabled: false