diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..6e0db03
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+.terraform/*
diff --git a/README.md b/README.md
index 6987a38..4595f90 100644
--- a/README.md
+++ b/README.md
@@ -28,19 +28,18 @@ A terraform module to deploy an Application Load Balancer (ALB) Ingress Controll
 
 | Name | Description | Type | Default | Required |
 |------|-------------|------|---------|:--------:|
-| cluster\_identity\_oidc\_issuer | n/a | `any` | n/a | yes |
-| cluster\_identity\_oidc\_issuer\_arn | n/a | `any` | n/a | yes |
-| cluster\_name | n/a | `any` | n/a | yes |
+| cluster\_identity\_oidc\_issuer | The OIDC Identity issuer for the cluster | `string` | n/a | yes |
+| cluster\_identity\_oidc\_issuer\_arn | The OIDC Identity issuer ARN for the cluster that can be used to associate IAM roles with a service account | `string` | n/a | yes |
+| cluster\_name | The name of the cluster | `string` | n/a | yes |
 | enabled | n/a | `bool` | n/a | yes |
 | helm\_chart\_name | n/a | `string` | `"aws-alb-ingress-controller"` | no |
 | helm\_chart\_version | n/a | `string` | `"0.1.13"` | no |
 | helm\_release\_name | n/a | `string` | `"aws-alb-ingress-controller"` | no |
 | helm\_repo\_url | n/a | `string` | `"http://storage.googleapis.com/kubernetes-charts-incubator"` | no |
-| ingress\_class | n/a | `string` | `"alb-ingress"` | no |
 | k8s\_namespace | The k8s namespace in which the alb-ingress service account has been created | `string` | `"alb-ingress"` | no |
 | k8s\_service\_account\_name | The k8s alb-ingress service account name | `string` | `"aws-alb-ingress-controller"` | no |
 | mod\_dependency | Dependence variable binds all AWS resources allocated by this module, dependent modules reference this variable | `any` | `null` | no |
-| replica\_count | n/a | `number` | `2` | no |
+| settings | Additional settings which will be passed to the Helm chart values, see https://hub.helm.sh/charts/incubator/aws-alb-ingress-controller | `map(any)` | `{}` | no |
 
 ## Outputs
 
diff --git a/main.tf b/main.tf
index 210a58a..eb625c0 100644
--- a/main.tf
+++ b/main.tf
@@ -7,14 +7,32 @@ resource "helm_release" "alb_ingress" {
   namespace  = var.k8s_namespace
   version    = var.helm_chart_version
 
-  values = [
-    "${templatefile("${path.module}/templates/values.yaml.tpl",
-      {
-        "cluster_name"             = var.cluster_name,
-        "alb_ingress_iam_role_arn" = aws_iam_role.alb_ingress[0].arn
-        "replica_count"            = var.replica_count
-        "ingress_class"            = var.ingress_class
-      })
-    }"
-  ]
+  set {
+    name  = "clusterName"
+    value = var.cluster_name
+  }
+
+  set {
+    name  = "rbac.create"
+    value = "true"
+  }
+
+  set {
+    name  = "rbac.serviceAccount.create"
+    value = "true"
+  }
+
+  set {
+    name  = "rbac.serviceAccountAnnotations.eks\\.amazonaws\\.com/role-arn"
+    value = aws_iam_role.alb_ingress[0].arn
+  }
+
+  dynamic "set" {
+    for_each = var.settings
+
+    content {
+      name  = set.key
+      value = set.value
+    }
+  }
 }
diff --git a/templates/values.yaml.tpl b/templates/values.yaml.tpl
deleted file mode 100644
index b027095..0000000
--- a/templates/values.yaml.tpl
+++ /dev/null
@@ -1,32 +0,0 @@
-## Resources created by the ALB Ingress controller will be prefixed with this string
-## Required
-clusterName: ${ cluster_name }
-
-scope:
-  ## If provided, the ALB ingress controller will only act on Ingress resources annotated with this class
-  ## Ref: https://github.com/kubernetes-sigs/aws-alb-ingress-controller/blob/master/docs/guide/controller/config.md#limiting-ingress-class
-  ingressClass: ${ ingress_class }
-
-rbac:
-  create: true
-  serviceAccountAnnotations:
-    eks.amazonaws.com/role-arn: ${ alb_ingress_iam_role_arn }
-
-resources:
-  requests:
-    memory: "64Mi"
-  limits:
-    memory: "128Mi"
-
-image:
-  repository: docker.io/amazon/aws-alb-ingress-controller
-  tag: "v1.1.5"
-  pullPolicy: IfNotPresent
-
-replicaCount: ${ replica_count }
-
-## Auto Discover awsRegion from ec2metadata, set this to true and omit awsRegion when ec2metadata is available.
-autoDiscoverAwsRegion: true
-
-## Auto Discover awsVpcID from ec2metadata, set this to true and omit awsVpcID: " when ec2metadata is available.
-autoDiscoverAwsVpcID: true
diff --git a/variables.tf b/variables.tf
index 2a2312f..99dcd62 100644
--- a/variables.tf
+++ b/variables.tf
@@ -1,21 +1,24 @@
 # Required module inputs
 
-variable "cluster_name" {}
-variable "cluster_identity_oidc_issuer" {}
-variable "cluster_identity_oidc_issuer_arn" {}
-
-# alb-ingress
+variable "cluster_name" {
+  type        = string
+  description = "The name of the cluster"
+}
 
-variable "enabled" {
-  type = bool
+variable "cluster_identity_oidc_issuer" {
+  type        = string
+  description = "The OIDC Identity issuer for the cluster"
 }
 
-variable "replica_count" {
-  default = 2
+variable "cluster_identity_oidc_issuer_arn" {
+  type        = string
+  description = "The OIDC Identity issuer ARN for the cluster that can be used to associate IAM roles with a service account"
 }
 
-variable "ingress_class" {
-  default = "alb-ingress"
+# alb-ingress
+
+variable "enabled" {
+  type = bool
 }
 
 # Helm
@@ -52,3 +55,9 @@ variable "mod_dependency" {
   default     = null
   description = "Dependence variable binds all AWS resources allocated by this module, dependent modules reference this variable"
 }
+
+variable "settings" {
+  type        = map(any)
+  default     = {}
+  description = "Additional settings which will be passed to the Helm chart values, see https://hub.helm.sh/charts/incubator/aws-alb-ingress-controller"
+}