Minikube Ingress DNS: Difference between revisions

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<syntaxhighlight lang="bash">
<syntaxhighlight lang="bash">
ip -j link show | jq -r '.[]|select(.link_type=="ether").ifname'
ip -j link show type bridge | jq -r '.[].ifname'
ip -j link show type bridge | jq -r '.[].ifname'
ip -o link show | awk -F': ' '{print $2}'
ip -o link show | awk -F': ' '{print $2}'

Revision as of 03:17, 8 June 2024

minikube stop
minikube delete --all
rm -rf ${HOME}/.minikube/*

minikube start
minikube docker-env
minikube addons list

minikube addons enable ingress
minikube addons enable ingress-dns
minikube addons enable metrics-server

kubectl get ns
kubectl get all
kubectl get all  -A
kubectl get pods -A
kubectl get namespaces

minikube kubectl -- get ns
minikube kubectl -- get all
minikube kubectl -- get all  -A
minikube kubectl -- get pods -A
minikube kubectl -- get namespaces

kubectl get  all -n kube-system
kubectl get  configmap -n kube-system
kubectl get  configmap coredns -n kube-system
kubectl edit configmap coredns -n kube-system
kubectl get  configmap coredns -n kube-system -o yaml

Ingress DNS

kubectl edit configmap coredns -n kube-system

apiVersion: v1
data:
  Corefile: |
    .:53 {
        log
        errors

        reload
        loadbalance
    }
    k8s.local:53 {
        errors
        cache 30
        forward . 192.168.49.2
    }
    academia.local:53 {
        errors
        cache 30
        forward . 192.168.49.2
    }
kind: ConfigMap
metadata:
  creationTimestamp: "2023-07-04T00:08:54Z"
  name: coredns
  namespace: kube-system
  resourceVersion: "300"
  uid: d8eec45d-1452-467f-8861-8811658c773a

K8s » Dashboard 

cat <<EOF | kubectl apply -n kubernetes-dashboard -f -
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: kubernetes-dashboard
  labels:
    helm.sh/chart: kubernetes-dashboard-1.0.0
    app.kubernetes.io/name: kubernetes-dashboard
    app.kubernetes.io/instance: kubernetes-dashboard
    app.kubernetes.io/version: "1.0.0"
    app.kubernetes.io/managed-by: Helm
spec:
  ingressClassName: nginx
  rules:
    - host: "www.k8s.local"
      http:
        paths:
          - path: /
            pathType: ImplementationSpecific
            backend:
              service:
                name: kubernetes-dashboard
                port:
                  number: 80
EOF

cat <<EOF | kubectl delete -n kubernetes-dashboard -f -
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: kubernetes-dashboard
  labels:
    helm.sh/chart: kubernetes-dashboard-1.0.0
    app.kubernetes.io/name: kubernetes-dashboard
    app.kubernetes.io/instance: kubernetes-dashboard
    app.kubernetes.io/version: "1.0.0"
    app.kubernetes.io/managed-by: Helm
spec:
  ingressClassName: nginx
  rules:
    - host: "www.k8s.local"
      http:
        paths:
          - path: /
            pathType: ImplementationSpecific
            backend:
              service:
                name: kubernetes-dashboard
                port:
                  number: 80
EOF

kubectl run -i --tty --rm debug --image=alpine  --restart=Never -- nslookup www.k8s.local
kubectl run -i --tty --rm debug --image=alpine  --restart=Never -- ping www.k8s.local
nslookup www.k8s.local $(minikube ip)

K8s » DNS Config 

RESOLVE='/etc/resolv.conf';\
printf -v K8S_DNS '%s' $(minikube ip);\
if  [ -f ${RESOLVE} ]&&[ "$(grep -c ${K8S_DNS} ${RESOLVE})" == 0 ];then\
 cat << EOF | sudo tee -a ${RESOLVE} >/dev/null

nameserver ${K8S_DNS}
EOF
fi;\
cat ${RESOLVE}

nslookup www.k8s.local

ping www.k8s.local

xdg-open http://www.k8s.local &>/dev/null &
gnome-open http://www.k8s.local &>/dev/null &

x-www-browser http://www.k8s.local &>/dev/null &
sensible-browser http://www.k8s.local &>/dev/null &

Playground

minikube status -f '{{.Kubeconfig}}'
minikube status -f '{{.APIServer}}'
minikube status -f '{{.Kubelet}}'
minikube status -f '{{.Worker}}'
minikube status -f '{{.Host}}'

minikube status -o 'json' | jq -r '.Kubeconfig'
minikube status -o 'json' | jq -r '.APIServer'
minikube status -o 'json' | jq -r '.Kubelet'
minikube status -o 'json' | jq -r '.Worker'
minikube status -o 'json' | jq -r '.Host'

ip -j link show | jq -r '.[]|select(.link_type=="ether").ifname'
ip -j link show type bridge | jq -r '.[].ifname'
ip -o link show | awk -F': ' '{print $2}'
ip -j link show | jq -r '.[].ifname'
ls /sys/class/net

minikube status -f '{{- if .TimeToStop }} timeToStop: {{.TimeToStop}} {{- end }}'
minikube status -f '{{- if .DockerEnv }} docker-env: {{.DockerEnv}} {{- end }}'
minikube status -o 'json' | jq

References

Retrieved from "https://cdn.chorke.org/weke/index.php?title=Minikube_Ingress_DNS&oldid=11680"