k3s local access issue

[massimogallina]

I have installed the image kairos-alpine-ubuntu-v1.5.1-k3sv1.21.14+k3s1 with the following configuration:

#cloud-config

# Define the user accounts on the node.
users:
- name: "kairos"
  passwd: "kairos"
  ssh_authorized_keys:
  - "ssh-rsa AAA..."

# Enable K3s on the node.
k3s:
  enabled: true
  args:
  - --disable=traefik,servicelb

stages:
  initramfs:
    - files:
        - path: /var/lib/connman/default.config
          permission: 0644
          content: |
            [service_eth0]
            Type = ethernet
            IPv4 = 192.168.11.55/24/192.168.11.250
            Nameservers = 192.168.1.181 8.8.8.8           
  boot:
    - name: "Setup dns"
      dns:
        nameservers:
        - 192.168.1.181
        - 8.8.8.8
        path: "/etc/resolv.conf"
    - name: "Setup hostname"
      hostname: "test"

After the installation and initial configuration, I access the node in SSH and run export KUBECONFIG=/etc/rancher/k3s/k3s.yaml in order to access k3s. But when I tried to run some kubernetes command, like sudo kubectl get nodes, the system logs:

E0214 13:00:26.572499   16811 memcache.go:238] couldn't get current server API group list: Get "http://localhost:8080/api?timeout=32s": dial tcp [::1]:8080: connect: connection refused
E0214 13:00:26.574428   16811 memcache.go:238] couldn't get current server API group list: Get "http://localhost:8080/api?timeout=32s": dial tcp [::1]:8080: connect: connection refused
E0214 13:00:26.576436   16811 memcache.go:238] couldn't get current server API group list: Get "http://localhost:8080/api?timeout=32s": dial tcp [::1]:8080: connect: connection refused
E0214 13:00:26.578286   16811 memcache.go:238] couldn't get current server API group list: Get "http://localhost:8080/api?timeout=32s": dial tcp [::1]:8080: connect: connection refused
E0214 13:00:26.580001   16811 memcache.go:238] couldn't get current server API group list: Get "http://localhost:8080/api?timeout=32s": dial tcp [::1]:8080: connect: connection refused
The connection to the server localhost:8080 was refused - did you specify the right host or port?

Am I missing something?

[mudler]

Seems kubectl can't get the KUBECONFIG file, from your commands could be that it is out of scope, try with:

export KUBECONFIG=/etc/rancher/k3s/k3s.yaml
sudo -E kubectl get nodes

or better, just run as root:

sudo su -  # become root
export KUBECONFIG=/etc/rancher/k3s/k3s.yaml
kubectl get nodes

[massimogallina]

Thanks @mudler! This solves my issue.
The KUBECONFIG env variable was not preserved on root user.

[mudler]

cool! glad to see it's solved!