I'm on an ec2 instance trying to get my cluster created. I have kubectl already installed and here are my services and workloads yaml files
services.yaml
apiVersion: v1
kind: Service
metadata:
  name: stockapi-webapp

spec:
  selector:
    app: stockapi

  ports:
    - name: http
      port: 80

  type: LoadBalancer

workloads.yaml
apiVersion: v1
kind: Deployment
metadata:
  name: stockapi
spec:
  selector:
    matchLabels:
      app: stockapi
  replicas: 1
  template: # template for the pods
    metadata:
      labels:
        app: stockapi
    spec:
      containers:
      - name: stock-api
        image: public.ecr.aws/u1c1h9j4/stock-api:latest

When I try to run
kubectl apply -f workloads.yaml

I get this as an error
The connection to the server localhost:8080 was refused - did you specify the right host or port?

I also tried changing the port in my services.yaml to 8080 and that didn't fix it either
    

        

    
    
        
            asked May 22, 2022 at 0:27
        
        
    
    
        
    
    
        MP32MP327213 gold badges15 silver badges33 bronze badges
        
    

    





                
                
                    


                                        

            

            


        

    
    
This error comes when you don't have ~/.kube/config file present or configured correctly on the client / where you run the kubectl command.
kubectl reads the clusterinfo and which port to connect to from the  ~/.kube/config file.
if you are using eks here's how you can create config file
aws eks create kubeconfig file
    
    
    
        
            answered May 22, 2022 at 1:16
        
        
    
    
        
    
    

    





                

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In my case I had a problem with a certificate authority. Found out that by checking the kubectl config
kubectl config view

The clusters part was null, instead of having something similar to
- cluster:
certificate-authority-data: DATA+OMITTED
server: https://kubernetes.docker.internal:6443
  name: docker-desktop

It was not parsed because of time differences between my machine and a server (several seconds was enough).
Running
sudo apt-get install ntp
sudo apt-get install ntpdate
sudo ntpdate ntp.ubuntu.com

Had solved the issue.
    
    
    
        
            answered Sep 7, 2022 at 10:56
        
        
    
    
        
    
    

    





                

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Encountered the exact error in my cluster when I executed the "kubectl get nodes" command.
The connection to the server localhost:8080 was refused - did you specify the right host or port?
I ran the following command in master node and it fixed the error.
apt-get update && apt-get install -y apt-transport-https ca-certificates curl software-properties-common
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | apt-key add -
add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu focal stable"
apt-get update && apt-get install -y containerd.io
Configure containerd
mkdir -p /etc/containerd
containerd config default > /etc/containerd/config.toml
systemctl restart containerd
    
    
    
        
            answered Jan 27, 2023 at 7:56
        
        
    
    
        
    
    
        Lherben GLherben G3932 silver badges6 bronze badges
        
    

    


                                        

            

            


        

    
    
I was following the instructions on aws
With me, I was on a Mac. I had docker desktop installed. This seemed to include kubectl in homebrew
I traced it down to a link in usr/local/bin and renamed it to kubectl-old
Then I reinstalled kubectl, put it on my path and everything worked.
I know this is very specific to my case, but may help others.
    
    
    
        
            answered Aug 21, 2022 at 23:42
        
        
    
    
        
    
    
        JakeJake4,68010 gold badges43 silver badges89 bronze badges
        
    

    





                

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ERROR:
The connection to the server localhost:8080 was refused - did you specify the right host or port?
In my case, issue was fixed by exporting the KUBECONFIG
export KUBECONFIG=/home/.kube/kubeconfig
    
    
    
        
            answered Dec 14, 2023 at 21:44
        
        
    
    
        
    
    

    

                                        

        

    
    
I was using ansible trying to install calico and discovered I had placed some extra arguments in the playbook command.  I took the extra args out and ran it like this and it finally worked:
ansible-playbook -i inventory/inventory.yml --limit "control-1" --ask-become-pass -u XXXX kubernetes_install_part2_network.yml

    
    
    
    
        
    
    
        texasdavetexasdave7561 gold badge5 silver badges16 bronze badges
        
    

    

                                        

        

    
    
I found how to solve this question. Run the below commands
1.sudo -i
2.swapoff -a
3.exit
4.strace -eopenat kubectl version
and you can type kubectl get nodes again.
Cheers !
    
    
    
        
            answered Aug 24, 2022 at 11:55
        
        
    
    
        
    
    

    

                                        

        

    
    I got the same error and after switching from root user to regular user (ubuntu, etc...) my problem was fixed.
    
        
            answered Dec 8, 2022 at 21:12
        
        
    
    


                                    



                            
                                
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