Add ingress function

This change introduces a function that deploys the NGINX ingress
controller.

Closes: #24

Change-Id: I149fe5ef7c07eb4af6235cf55cd8ca2a9f4c4ee8

manifests/function/ingress/helmrelease.yaml

@@ -0,0 +1,26 @@
+---
+apiVersion: "helm.fluxcd.io/v1"
+kind: HelmRelease
+metadata:
+  name: ingress
+spec:
+  wait: true
+  timeout: 600
+  values:
+    controller:
+      service:
+        type: NodePort
+        nodePorts:
+          http: 80
+          https: 443
+      kind: DaemonSet
+      hostNetwork: "false"
+      nodeSelector:
+        node-role.kubernetes.io/master: ""
+      tolerations:
+        - key: node-role.kubernetes.io/master
+          effect: NoSchedule
+  chart:
+    repository: https://kubernetes-charts.storage.googleapis.com
+    name: nginx-ingress
+    version: 1.40.1

manifests/function/ingress/kustomization.yaml

@@ -0,0 +1,4 @@
+resources:
+  - namespace.yaml
+  - helmrelease.yaml
+namespace: ingress

manifests/function/ingress/namespace.yaml

@@ -0,0 +1,4 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: ingress

manifests/site/test-site/target/workload/kustomization.yaml

@@ -0,0 +1,2 @@
+resources:
+  - ../../../../type/airship-core/target/workload

manifests/type/airship-core/target/workload/ingress/kustomization.yaml

@@ -0,0 +1,2 @@
+resources:
+  - ../../../../../function/ingress

manifests/type/airship-core/target/workload/kustomization.yaml

@@ -0,0 +1,2 @@
+resources:
+  - ingress

manifests/type/network-cloud/target/workload/kustomization.yaml

@@ -0,0 +1,2 @@
+resources:
+  - ../../../airship-core/target/workload