Adding support of ingressClassParams in helm charts (kubernetes-sigs#2478)

* Adding support of ingressClassParams in helm charts

* Update charts to let users to create ingressClassParams with specs

* Simplying the spec in values yaml

* Adding support for customer's ingressClassParams

* Using values fields directly instead of function

* eks1.19 doesn't allow null spec and need move if check out from spec block.

Author: haouc

helm/aws-load-balancer-controller/Chart.yaml

@@ -1,7 +1,7 @@
 apiVersion: v2
 name: aws-load-balancer-controller
 description: AWS Load Balancer Controller Helm chart for Kubernetes
-version: 1.3.4
+version: 1.3.5
 appVersion: v2.3.1
 home: https://github.com/aws/eks-charts
 icon: https://raw.githubusercontent.com/aws/eks-charts/master/docs/logo/aws.png

helm/aws-load-balancer-controller/README.md

@@ -185,6 +185,9 @@ The default values set by the application itself can be confirmed [here](https:/
 | `terminationGracePeriodSeconds`                | Time period for controller pod to do a graceful shutdown                                                 | 10                                                                                 |
 | `ingressClass`                                 | The ingress class to satisfy                                                                             | alb                                                                                |
 | `createIngressClassResource`                   | Create ingressClass resource                                                                             | true                                                                              |
+| `ingressClassParams.name`                      | IngressClassParams resource's name, default to the aws load balancer controller's name                   | None
+| `ingressClassParams.create`                    | If `true`, create a new ingressClassParams                                                               | true
+| `ingressClassParams.spec`                      | IngressClassParams defined ingress specifications                                                        | {}
 | `region`                                       | The AWS region for the kubernetes cluster                                                                | None                                                                               |
 | `vpcId`                                        | The VPC ID for the Kubernetes cluster                                                                    | None                                                                               |
 | `awsMaxRetries`                                | Maximum retries for AWS APIs                                                                             | None                                                                               |

helm/aws-load-balancer-controller/templates/_helpers.tpl

@@ -117,3 +117,10 @@ Convert map to comma separated key=value string
 {{- define "aws-load-balancer-controller.convertMapToCsv" -}}
 {{- range $key, $value := . -}} {{ $key }}={{ $value }}, {{- end -}}
 {{- end -}}
+
+{{/*
+Create the name of the ingressClassParams
+*/}}
+{{- define "aws-load-balancer-controller.ingressClassParamsName" -}}
+{{ default (include "aws-load-balancer-controller.fullname" .) .Values.ingressClassParams.name }}
+{{- end -}}

helm/aws-load-balancer-controller/templates/ingressclass.yaml

@@ -7,4 +7,10 @@ metadata:
     {{- include "aws-load-balancer-controller.labels" . | nindent 4 }}
 spec:
   controller: ingress.k8s.aws/alb
+  {{- if or .Values.ingressClassParams.create .Values.ingressClassParams.name }}
+  parameters:
+    apiGroup: elbv2.k8s.aws
+    kind: IngressClassParams
+    name: {{ include "aws-load-balancer-controller.ingressClassParamsName" . }}
+  {{- end }}
 {{- end }}

helm/aws-load-balancer-controller/templates/ingressclassparams.yaml

@@ -0,0 +1,10 @@
+{{- if .Values.ingressClassParams.create }}
+apiVersion: elbv2.k8s.aws/v1beta1
+kind: IngressClassParams
+metadata:
+  name: {{ include "aws-load-balancer-controller.ingressClassParamsName" . }}
+{{- if .Values.ingressClassParams.spec }}
+spec:
+  {{ toYaml .Values.ingressClassParams.spec | nindent 2}}
+{{- end }}
+{{- end }}

helm/aws-load-balancer-controller/values.yaml

@@ -87,6 +87,22 @@ enableCertManager: false
 # ingresses without ingress class annotation and ingresses of type alb
 ingressClass: alb
 
+# ingressClassParams specify the IngressCLassParams that enforce settings for a set of Ingresses when using with ingress Controller.
+ingressClassParams:
+  create: true
+  # The name of ingressClassParams resource will be referred in ingressClass
+  name:
+  spec: {}
+    # You always can set specifications in `helm install` command through `--set` or `--set-string`
+    # If you do want to specify specifications in values.yaml, uncomment the following
+    # lines, adjust them as necessary, and remove the curly braces after 'spec:'.
+    # namespaceSelector:
+    #   matchLabels:
+    # group:
+    # scheme:
+    # ipAddressType:
+    # tags:
+
 # To use IngressClass resource instead of annotation, before you need to install the IngressClass resource pointing to controller.
 # If specified as true, the IngressClass resource will be created.
 createIngressClassResource: true