I am new to Kubernetes. I am using Minikube for Mac with VM hyperkit. I also have docker-desktop installed (in which I have tried both enable/disable Kubernetes).
docker pull is executed smoothly with no error.
but on
kubectl run kubernetes-jenkins --image=jenkins:latest --port=8080 (or any image, be it gcr.io/google-samples/kubernetes-bootcamp:v1) it fails with ImagePullBackOff
Trimming few parts from kubectl cluster-info dump:
I1230 10:20:56.812648 1 serving.go:312] Generated self-signed cert in-memory W1230 10:20:58.777494 1 configmap_cafile_content.go:102] unable to load initial CA bundle for: "client-ca::kube-system::extension-apiserver-authentication::client-ca-file" due to: configmap "extension-apiserver-authentication" not found W1230 10:20:58.778005 1 configmap_cafile_content.go:102] unable to load initial CA bundle for: "client-ca::kube-system::extension-apiserver-authentication::requestheader-client-ca-file" due to: configmap "extension-apiserver-authentication" not found W1230 10:20:58.849619 1 authorization.go:47] Authorization is disabled W1230 10:20:58.850375 1 authentication.go:92] Authentication is disabled
"reason": "Failed", "message": "Failed to pull image \"jenkins:latest\": rpc error: code = Unknown desc = Error response from daemon: Get https://registry-1.docker.io/v2/: dial tcp: lookup registry-1.docker.io on 192.168.64.1:53: read udp 192.168.64.3:38558-\u003e192.168.64.1:53: read: connection refused", "source": { "component": "kubelet", "host": "minikube" }
Why kubectl is unable to pull image from the repository?
In minikube your local docker registry docker image can't be found,so you have to set your docker env to use minikube registry for local image you build and pull
eval $(minikube docker-env)if that doesn't solve your problem, you have to start minikube by telling it's registry
minikube start --vm-driver="virtualbox" --insecure-registry=$(docker-machine ip registry):80