failing to create ALB ingress controller on amazon eks

Question

I am trying to create ALB ingress controller on amazon eks i am following https://docs.aws.amazon.com/eks/latest/userguide/alb-ingress.html documentation when i run kubectl apply -f alb-ingress-controller.yaml command i get below error. Please help me to fix this issue. i have referred many documentation but it is still failing to create ALB ingress controller. PF alb-ingress-controller.yaml file below

error:

The Deployment "alb-ingress-controller" is invalid: spec.selector: Invalid value: v1.LabelSelector{MatchLabels:map[string]string{"app.kubernetes.io/name":"alb-ingress-controller"}, MatchExpressions:[]v1.LabelSelectorRequirement(nil)}: field is immutable

# Application Load Balancer (ALB) Ingress Controller Deployment Manifest.
# This manifest details sensible defaults for deploying an ALB Ingress Controller.
# GitHub: https://github.com/kubernetes-sigs/aws-alb-ingress-controller
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app.kubernetes.io/name: alb-ingress-controller
  name: alb-ingress-controller
  # Namespace the ALB Ingress Controller should run in. Does not impact which
  # namespaces it's able to resolve ingress resource for. For limiting ingress
  # namespace scope, see --watch-namespace.
  namespace: kube-system
spec:
  selector:
    matchLabels:
      app.kubernetes.io/name: alb-ingress-controller
  template:
    metadata:
      labels:
        app.kubernetes.io/name: alb-ingress-controller
    spec:
      containers:
        - name: alb-ingress-controller
          args:
            # Limit the namespace where this ALB Ingress Controller deployment will
            # resolve ingress resources. If left commented, all namespaces are used.
            # - --watch-namespace=your-k8s-namespace

            # Setting the ingress-class flag below ensures that only ingress resources with the
            # annotation kubernetes.io/ingress.class: "alb" are respected by the controller. You may
            # choose any class you'd like for this controller to respect.
            - --ingress-class=alb

            # REQUIRED
            # Name of your cluster. Used when naming resources created
            # by the ALB Ingress Controller, providing distinction between
            # clusters.
            - --cluster-name=Cluster-name

            # AWS VPC ID this ingress controller will use to create AWS resources.
            # If unspecified, it will be discovered from ec2metadata.
            - --aws-vpc-id=vpc-id

            # AWS region this ingress controller will operate in.
            # If unspecified, it will be discovered from ec2metadata.
            # List of regions: http://docs.aws.amazon.com/general/latest/gr/rande.html#vpc_region
            - --aws-region=ap-south-1

            # Enables logging on all outbound requests sent to the AWS API.
            # If logging is desired, set to true.
            # - --aws-api-debug
            # Maximum number of times to retry the aws calls.
            # defaults to 10.
            # - --aws-max-retries=10
          # env:
            # AWS key id for authenticating with the AWS API.
            # This is only here for examples. It's recommended you instead use
            # a project like kube2iam for granting access.
            #- name: AWS_ACCESS_KEY_ID
            #  value: KEYVALUE

            # AWS key secret for authenticating with the AWS API.
            # This is only here for examples. It's recommended you instead use
            # a project like kube2iam for granting access.
            #- name: AWS_SECRET_ACCESS_KEY
            #  value: SECRETVALUE
          # Repository location of the ALB Ingress Controller.
          image: docker.io/amazon/aws-alb-ingress-controller:v1.1.3
      serviceAccountName: alb-ingress-controller

James Gustard James Gustard · Accepted Answer · 2020-01-07T12:58:24

I got the same error, I had to delete the old deployment then re apply.

kubectl get deployments --all-namespaces

Lists all the deployments.

If you can see alb-ingress-controller:

kubectl -n [namespace] delete deploy alb-ingress-controller

Will delete the old deployment, then try again.

failing to create ALB ingress controller on amazon eks

2 Answers