From 348163953bd1ae1a3bc7468938b5583be6358fc1 Mon Sep 17 00:00:00 2001
From: Ionut Balutoiu <ionut@balutoiu.com>
Date: Thu, 16 Nov 2023 17:34:47 +0200
Subject: [PATCH] Add Kubernetes ingress support

Allow optional configuration of ingress Kubernetes resource for
the main n8n service, and the webhook service.

Signed-off-by: Ionut Balutoiu <ionut@balutoiu.com>
---
 n8n/templates/ingress.yaml | 46 ++++++++++++++++++++++++++++++++++++++
 n8n/values.yaml            | 13 +++++++++++
 2 files changed, 59 insertions(+)
 create mode 100644 n8n/templates/ingress.yaml

diff --git a/n8n/templates/ingress.yaml b/n8n/templates/ingress.yaml
new file mode 100644
index 0000000..39948a9
--- /dev/null
+++ b/n8n/templates/ingress.yaml
@@ -0,0 +1,46 @@
+{{- if .Values.ingress.enabled }}
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: n8n
+  annotations:
+  {{- if eq .Values.ingress.className "nginx" }}
+    nginx.ingress.kubernetes.io/proxy-read-timeout: "3600"
+    nginx.ingress.kubernetes.io/proxy-send-timeout: "3600"
+    nginx.ingress.kubernetes.io/configuration-snippet: |
+      more_set_headers "X-Frame-Options: SAMEORIGIN";
+      proxy_set_header Accept-Encoding "";
+  {{- end }}
+  {{- with .Values.ingress.annotations }}
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  ingressClassName: {{ .Values.ingress.className }}
+  rules:
+    - host: {{ .Values.n8n.domainName }}
+      http:
+        paths:
+          {{- if eq .Values.n8n.deploymentMode "scale" }}
+          - path: /webhook/
+            pathType: Prefix
+            backend:
+              service:
+                name: webhook
+                port:
+                  number: 5678
+          - path: /webhook-waiting/
+            pathType: Prefix
+            backend:
+              service:
+                name: webhook
+                port:
+                  number: 5678
+          {{- end }}
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: n8n
+                port:
+                  number: 5678
+{{- end }}
diff --git a/n8n/values.yaml b/n8n/values.yaml
index 8c14ef4..3b45fcc 100644
--- a/n8n/values.yaml
+++ b/n8n/values.yaml
@@ -10,5 +10,18 @@ n8n:
     password: change-this
   concurrency: 20
 
+ingress:
+  enabled: false
+  className: nginx
+  annotations: {}
+  #
+  # Traefik ingress example
+  #
+  # className: traefik
+  # annotations:
+  #   traefik.ingress.kubernetes.io/router.entrypoints: websecure
+  #   traefik.ingress.kubernetes.io/router.tls: "true"
+  #   traefik.ingress.kubernetes.io/router.tls.certresolver: le
+
 resources:
   memoryLimit: 1Gi