feat: add Ingress for opencost UI (#41)

* feat: add Ingress for UI

* version bump

Signed-off-by: Rafał Boniecki <rafal@boniecki.cc>

* Documentation for all possible values

Co-authored-by: Marco Kilchhofer <mkilchhofer@users.noreply.github.com>
Signed-off-by: Rafał Boniecki <rafal@boniecki.cc>

---------

Signed-off-by: Rafał Boniecki <rafal@boniecki.cc>
Co-authored-by: Marco Kilchhofer <mkilchhofer@users.noreply.github.com>

Author: boniek83

charts/opencost/Chart.yaml

@@ -9,7 +9,7 @@ keywords:
   - kubecost
   - opencost
   - monitoring
-version: 1.7.0
+version: 1.8.0
 maintainers:
   - name: mattray
     url: https://mattray.dev

charts/opencost/templates/ingress.yaml

@@ -0,0 +1,40 @@
+{{- if and .Values.opencost.ui.enabled .Values.opencost.ui.ingress.enabled -}}
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: {{ include "opencost.fullname" . }}-ingress
+  labels:
+    {{- include "opencost.labels" . | nindent 4 }}
+  {{- with .Values.opencost.ui.ingress.annotations }}
+  annotations: {{ toYaml .Values.opencost.ui.ingress.annotations | nindent 4 }}
+  {{- end }}
+spec:
+{{- if .Values.opencost.ui.ingress.ingressClassName }}
+  ingressClassName: {{ .Values.opencost.ui.ingress.ingressClassName }}
+{{- end }}
+{{- if .Values.opencost.ui.ingress.tls }}
+  tls:
+  {{- range .Values.opencost.ui.ingress.tls }}
+    - hosts:
+      {{- range .hosts }}
+        - {{ . | quote }}
+      {{- end }}
+      secretName: {{ .secretName }}
+  {{- end }}
+{{- end }}
+  rules:
+  {{- range .Values.opencost.ui.ingress.hosts }}
+    - host: {{ .host | quote }}
+      http:
+        paths:
+        {{- range .paths }}
+          - path: {{ . }}
+            pathType: Prefix
+            backend:
+              service:
+                name: {{ include "opencost.fullname" $ }}
+                port:
+                  name: http-ui
+        {{- end }}
+  {{- end }}
+{{- end }}

charts/opencost/values.yaml

@@ -136,6 +136,25 @@ opencost:
     # -- A list of volume mounts to be added to the pod
     extraVolumeMounts: []
 
+    ingress:
+      # -- Ingress for OpenCost UI
+      enabled: false
+      # -- Ingress controller which implements the resource
+      ingressClassName: ""
+      # -- Annotations for Ingress resource
+      annotations: {}
+        # kubernetes.io/tls-acme: "true"
+      # -- A list of host rules used to configure the Ingress
+      # @default -- See [values.yaml](values.yaml)
+      hosts:
+        - host: example.local
+          paths:
+            - /
+      # -- Ingress TLS configuration
+      tls: []
+        #  - secretName: chart-example-tls
+        #    hosts:
+        #      - chart-example.local
   # -- Toleration labels for pod assignment
   tolerations: []
   # -- Node labels for pod assignment