Kubeadm: ํฌํŠธ 10251 ๋ฐ 10252๊ฐ€ ์‚ฌ์šฉ ์ค‘์ž…๋‹ˆ๋‹ค.

์— ๋งŒ๋“  2017๋…„ 07์›” 07์ผ  ยท  13์ฝ”๋ฉ˜ํŠธ  ยท  ์ถœ์ฒ˜: kubernetes/kubeadm

๋ฒ„์ „ ์ •๋ณด

kubeadm v1.6.5

๋‚ณ๋‹ค

๋งˆ์Šคํ„ฐ ์„œ๋ฒ„์—์„œ: (1) kubeadm init ; (2) kubeadm reset ; (3) kubeadm init ๋‹ค์‹œ port 10251 is in use, port 10252 is in use ์˜ค๋ฅ˜๊ฐ€ ๋ฐœ์ƒํ–ˆ์Šต๋‹ˆ๋‹ค.

kubeadm init --token abcdef.1234567890abcdef --kubernetes-version v1.6.5
[kubeadm] WARNING: kubeadm is in beta, please do not use it for production clusters.
[init] Using Kubernetes version: v1.6.5
[init] Using Authorization mode: RBAC
[preflight] Running pre-flight checks
[preflight] Some fatal errors occurred:
    Port 10251 is in use
    Port 10252 is in use

ํ•ด๊ฒฐ์ฑ…

๋ชจ๋“  ํฌํŠธ์˜ ์‚ฌ์šฉ ํ˜„ํ™ฉ์„ ํ™•์ธํ•ฉ๋‹ˆ๋‹ค. kubeadm์ด controller ๋ฐ scheduler ์žฌ์„ค์ •์— ์‹คํŒจํ•œ ๊ฒƒ ๊ฐ™์Šต๋‹ˆ๋‹ค.

$ netstat -lnp | grep 1025
tcp6       0      0 :::10251                :::*                    LISTEN      4366/kube-scheduler
tcp6       0      0 :::10252                :::*                    LISTEN      4353/kube-controlle
$ kill 4366
$ kill 4353

๊ทธ๋“ค์„ ์ฃฝ์ด๊ณ  ๋‚˜๋ฉด Kubernetes ํด๋Ÿฌ์Šคํ„ฐ๋ฅผ ์ดˆ๊ธฐํ™”ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

kubeadm init --token abcdef.1234567890abcdef --kubernetes-version v1.6.5
[kubeadm] WARNING:  is in beta, please do not use it for production clusters.
[init] Using Kubernetes version: v1.6.5
[init] Using Authorization mode: RBAC
[preflight] Running pre-flight checks
[preflight] Starting the kubelet service
[certificates] Generated CA certificate and key.
[certificates] Generated API server certificate and key.
[certificates] API Server serving cert is signed for DNS names [xxx.xxx.xxx.xxx kubernetes kubernetes.default kubernetes.default.svc kubernetes.default.svc.cluster.local] and IPs [xxx.xxx.xxx.xxx]
[certificates] Generated API server kubelet client certificate and key.
[certificates] Generated service account token signing key and public key.
[certificates] Generated front-proxy CA certificate and key.
[certificates] Generated front-proxy client certificate and key.
[certificates] Valid certificates and keys now exist in "/etc/kubernetes/pki"
[kubeconfig] Wrote KubeConfig file to disk: "/etc/kubernetes/admin.conf"
[kubeconfig] Wrote KubeConfig file to disk: "/etc/kubernetes/kubelet.conf"
[kubeconfig] Wrote KubeConfig file to disk: "/etc/kubernetes/controller-manager.conf"
[kubeconfig] Wrote KubeConfig file to disk: "/etc/kubernetes/scheduler.conf"
[apiclient] Created API client, waiting for the control plane to become ready
[apiclient] All control plane components are healthy after 16.281203 seconds
[apiclient] Waiting for at least one node to register
[apiclient] First node has registered after 5.501873 seconds
[token] Using token: abcdef.1234567890abcdef
[apiconfig] Created RBAC rules
[addons] Created essential addon: kube-proxy
[addons] Created essential addon: kube-dns

Your Kubernetes master has initialized successfully!

To start using your cluster, you need to run (as a regular user):

  sudo cp /etc/kubernetes/admin.conf $HOME/
  sudo chown $(id -u):$(id -g) $HOME/admin.conf
  export KUBECONFIG=$HOME/admin.conf

You should now deploy a pod network to the cluster.
Run "kubectl apply -f [podnetwork].yaml" with one of the options listed at:
  http://kubernetes.io/docs/admin/addons/

You can now join any number of machines by running the following on each node
as root:

  kubeadm join --token abcdef.1234567890abcdef xxx.xxx.xxx.xxx:6443

ํ•œ๋งˆ๋””๋กœ

๋™์ผํ•œ ๋ฌธ์ œ๋ฅผ ํ•ด๊ฒฐํ•˜๋ ค๋Š” ์‚ฌ์šฉ์ž๋ฅผ ์œ„ํ•ด ์†”๋ฃจ์…˜์„ ์ฒจ๋ถ€ํ–ˆ์Šต๋‹ˆ๋‹ค.
๋ฒ„๊ทธ์ธ์ง€ ํ™•์ธํ•ด ์ฃผ์‹œ๊ฒ ์Šต๋‹ˆ๊นŒ?

๊ฐ€์žฅ ์œ ์šฉํ•œ ๋Œ“๊ธ€

๋ฌธ์ œ๋ฅผ ์ œ์ถœํ•ด ์ฃผ์…”์„œ ๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค!

๋‚˜๋Š” ๊ทธ๊ฒƒ์ด ์ •๋ง๋กœ ๋ฒ„๊ทธ๋ผ๊ณ  ์ƒ๊ฐํ•˜์ง€ ์•Š๋Š”๋‹ค. kube-scheduler ๋ฐ controller-manager ์ปจํ…Œ์ด๋„ˆ๊ฐ€ ์—ฌ์ „ํžˆ ์‹คํ–‰ ์ค‘์ด๊ธฐ ๋•Œ๋ฌธ์— ์–ด๋–ป๊ฒŒ๋“  you/kubeadm์ด ์˜ฌ๋ฐ”๋ฅด๊ฒŒ ์ •๋ฆฌ๋˜์ง€ ์•Š์•˜์Šต๋‹ˆ๋‹ค. ๋˜๋Š” docker๊ฐ€ ์–ด๋–ป๊ฒŒ ๋“  ๋‹ค์‹œ ์‹œ์ž‘ํ–ˆ์Šต๋‹ˆ๋‹ค.
๋˜๋Š” ์–ด๋–ป๊ฒŒ๋“  ์ง์ ‘ ์ปจํŠธ๋กค๋Ÿฌ ๊ด€๋ฆฌ์ž์™€ ์Šค์ผ€์ค„๋Ÿฌ๋ฅผ ์‹œ์ž‘ํ–ˆ์Šต๋‹ˆ๋‹ค.
์•„๋‹ˆ๋ฉด ๋ฏธ๋ฆฌ ^C kubeadm reset ์กฐ๊ธˆ...

์ž์ฃผ ๋ฐœ์ƒํ•˜๋ฉด ๋‹ค์‹œ ์—ด์–ด์ฃผ์„ธ์š” ๊ทผ๋ฐ ์—ฌ๊ธฐ ์ง„์งœ ๊ณ ์น ๊ฒŒ ์—†๋Š”๊ฑฐ ๊ฐ™์•„์š”

๋ชจ๋“  13 ๋Œ“๊ธ€

๋ฌธ์ œ๋ฅผ ์ œ์ถœํ•ด ์ฃผ์…”์„œ ๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค!

๋‚˜๋Š” ๊ทธ๊ฒƒ์ด ์ •๋ง๋กœ ๋ฒ„๊ทธ๋ผ๊ณ  ์ƒ๊ฐํ•˜์ง€ ์•Š๋Š”๋‹ค. kube-scheduler ๋ฐ controller-manager ์ปจํ…Œ์ด๋„ˆ๊ฐ€ ์—ฌ์ „ํžˆ ์‹คํ–‰ ์ค‘์ด๊ธฐ ๋•Œ๋ฌธ์— ์–ด๋–ป๊ฒŒ๋“  you/kubeadm์ด ์˜ฌ๋ฐ”๋ฅด๊ฒŒ ์ •๋ฆฌ๋˜์ง€ ์•Š์•˜์Šต๋‹ˆ๋‹ค. ๋˜๋Š” docker๊ฐ€ ์–ด๋–ป๊ฒŒ ๋“  ๋‹ค์‹œ ์‹œ์ž‘ํ–ˆ์Šต๋‹ˆ๋‹ค.
๋˜๋Š” ์–ด๋–ป๊ฒŒ๋“  ์ง์ ‘ ์ปจํŠธ๋กค๋Ÿฌ ๊ด€๋ฆฌ์ž์™€ ์Šค์ผ€์ค„๋Ÿฌ๋ฅผ ์‹œ์ž‘ํ–ˆ์Šต๋‹ˆ๋‹ค.
์•„๋‹ˆ๋ฉด ๋ฏธ๋ฆฌ ^C kubeadm reset ์กฐ๊ธˆ...

์ž์ฃผ ๋ฐœ์ƒํ•˜๋ฉด ๋‹ค์‹œ ์—ด์–ด์ฃผ์„ธ์š” ๊ทผ๋ฐ ์—ฌ๊ธฐ ์ง„์งœ ๊ณ ์น ๊ฒŒ ์—†๋Š”๊ฑฐ ๊ฐ™์•„์š”

@luxas ํŽ˜์–ด ํฌ์ธํŠธ. ๋ฌธ์ œ์— ์ฃผ์˜ํ•˜๊ฒ ์Šต๋‹ˆ๋‹ค. ๋‚ด ๊ตฌ์„ฑ์— ๋ฌธ์ œ๊ฐ€ ๋ฐœ์ƒํ•˜๋Š” ๋ฌธ์ œ๊ฐ€ ์žˆ๋Š” ๊ฒฝ์šฐ ์ด๋ฅผ ๋ณด๊ณ ํ•˜๊ณ  ์‹ถ์Šต๋‹ˆ๋‹ค.

๊ท€ํ•˜์˜ ํŒ์„ ๋”ฐ๋ž์ง€๋งŒ ์—ฌ์ „ํžˆ ๋™์ผํ•œ ๋ฌธ์ œ๊ฐ€ ๋ฐœ์ƒํ–ˆ์Šต๋‹ˆ๋‹ค. ๊ฐ™์€ ํฌํŠธ๋ฅผ ์‚ฌ์šฉํ•˜๊ธฐ ๋•Œ๋ฌธ์— ์ค‘์ง€๋˜์–ด์•ผ ํ–ˆ์ง€๋งŒ ์‹คํ–‰ ์ค‘์ธ minikube๊ฐ€ ์žˆ๋‹ค๋Š” ๊ฒƒ์„ ๊นจ๋‹ฌ์•˜์ง€๋งŒ ํ”„๋กœ์„ธ์Šค๋ฅผ "localkube"๋กœ ๋‚˜์—ดํ•ฉ๋‹ˆ๋‹ค.

@luxas๊ฐ€ ๋งํ–ˆ๋“ฏ์ด ์ด๊ฒƒ์€ ํšจ๊ณผ๊ฐ€์žˆ์—ˆ์Šต๋‹ˆ๋‹ค. ์•„๋งˆ๋„ ๋‹ค๋ฅธ ์–ด๋–ค ๊ฒƒ๋„ ์ž‘๋™ํ•˜์ง€ ์•Š์•˜๊ธฐ ๋•Œ๋ฌธ์— ์ตœ๊ณ ์˜ ์†”๋ฃจ์…˜์ผ ๊ฒƒ์ž…๋‹ˆ๋‹ค.
$ sudo kubeadm ์žฌ์„ค์ •

docker๋ฅผ ๋‹ค์šด๊ทธ๋ ˆ์ด๋“œํ•œ ๋‹ค์Œ minikube๋ฅผ ์‹คํ–‰ํ•˜๋ ค๊ณ  ํ•˜์—ฌ ์ด ์ƒํ™ฉ์— ์ฒ˜ํ–ˆ์Šต๋‹ˆ๋‹ค. kubeadm reset ์€ @luxas๊ฐ€ ์ œ์•ˆํ•œ ๋Œ€๋กœ ๋ฌธ์ œ๋ฅผ ํ•ด๊ฒฐํ–ˆ์Šต๋‹ˆ๋‹ค.

kubeadm reset์ด ๋ฌธ์ œ๋ฅผ ํ•ด๊ฒฐํ–ˆ์Šต๋‹ˆ๋‹ค.

docker ps; docker inspect etcd1 ๊ด€๋ จ ํฌํŠธ ๋ฒˆํ˜ธ๋ฅผ ์‚ฌ์šฉํ•˜๊ณ  ์žˆ๋˜ etcd ์ปจํ…Œ์ด๋„ˆ๋ฅผ ๋‚˜์—ดํ–ˆ์Šต๋‹ˆ๋‹ค. ๋”ฐ๋ผ์„œ sudo kubeadm init ์„ฑ๊ณต์— ์‹คํŒจํ–ˆ์Šต๋‹ˆ๋‹ค.
๋‚ด๊ฐ€ ํ•œ ๊ฒƒ์ฒ˜๋Ÿผ : docker kill etcd1

kubernetes ํด๋Ÿฌ์Šคํ„ฐ(SSH, ์ปค๋„ cgroups config,...)๋ฅผ ์ดˆ๊ธฐํ™”ํ•˜๋Š” ๊ฒƒ๊ณผ ๊ด€๋ จํ•˜์—ฌ ๋ช‡ ๊ฐ€์ง€ ๋‹ค๋ฅธ ๋ฌธ์ œ๊ฐ€ ๋‚จ์•„ ์žˆ์Šต๋‹ˆ๋‹ค. ๊ธฐ๋ณธ์ ์œผ๋กœ ์–ด๋–ค ๋ฒ„์ „์˜ Linux/์•„ํ‚คํ…์ฒ˜๋ฅผ ์‚ฌ์šฉํ•˜๋Š”์ง€ ์•Œ๊ณ  ์žˆ์ง€๋งŒ ์š”๊ตฌ ์‚ฌํ•ญ ์„ธ๋ถ€ ์ •๋ณด์—์„œ ํ•ด๊ฒฐ๋  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

kubeadm ์žฌ์„ค์ •
๋‚˜์—๊ฒŒ๋„ ๊ณ ์ • ๋ฌธ์ œ

๋‚˜๋Š” minikube ์‹œ์ž‘๊ณผ ๊ฐ™์€ ๋ฌธ์ œ๊ฐ€ ์žˆ์Šต๋‹ˆ๋‹ค.
๊ทธ๋ฆฌ๊ณ  ๋‹ค์Œ ๋‹จ๊ณ„๋กœ ๋ฌธ์ œ๋ฅผ ํ•ด๊ฒฐํ–ˆ์Šต๋‹ˆ๋‹ค.
1, ๋„์ปค ์ค‘์ง€ $(docker ps -a -q)
2, minikube ์‹œ์ž‘์˜ --extra-config ๋งค๊ฐœ๋ณ€์ˆ˜๋ฅผ ์‚ฌ์šฉํ•ฉ๋‹ˆ๋‹ค. ์˜ˆ: minikube ์‹œ์ž‘ --kubernetes-version=1.17.2 --vm-driver=none kubelet.ignore-preflight-errors kubeadm.ignore-preflight-errors

๋‚˜๋Š” minikube ์‹œ์ž‘๊ณผ ๊ฐ™์€ ๋ฌธ์ œ๊ฐ€ ์žˆ์Šต๋‹ˆ๋‹ค.
๊ทธ๋ฆฌ๊ณ  ๋‹ค์Œ ๋‹จ๊ณ„๋กœ ๋ฌธ์ œ๋ฅผ ํ•ด๊ฒฐํ–ˆ์Šต๋‹ˆ๋‹ค.
1, ๋„์ปค ์ค‘์ง€ $(docker ps -a -q)
2, minikube ์‹œ์ž‘์˜ --extra-config ๋งค๊ฐœ๋ณ€์ˆ˜๋ฅผ ์‚ฌ์šฉํ•ฉ๋‹ˆ๋‹ค. ์˜ˆ: minikube ์‹œ์ž‘ --kubernetes-version=1.17.2 --vm-driver=none kubelet.ignore-preflight-errors kubeadm.ignore-preflight-errors

์•ˆ๋…•ํ•˜์„ธ์š” ์—ฌ๋Ÿฌ๋ถ„,
์šฐ๋ถ„ํˆฌ VM์— Kubernetes๋ฅผ ์„ค์น˜ํ•˜๋ ค๊ณ  ํ•˜์ง€๋งŒ ๋ถˆํ–‰ํžˆ๋„ kubeadm ์žฌ์„ค์ •์—๋„ ๋ถˆ๊ตฌํ•˜๊ณ  ๋ช‡ ๊ฐ€์ง€ ๋ฌธ์ œ์— ์ง๋ฉดํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.
root@KVM :~# kubeadm init --config=kubeadm-config.yaml --upload-certs | tee kubeadm-init.out # ํ–ฅํ›„ ๊ฒ€ํ† ๋ฅผ ์œ„ํ•ด ์ถœ๋ ฅ ์ €์žฅ
W0719 22:06:28.075574 15363 configset.go:202] ๊ฒฝ๊ณ : kubeadm์€ API ๊ทธ๋ฃน [kubelet.config.k8s.io kubeproxy.config.k8s.io]์— ๋Œ€ํ•œ ๊ตฌ์„ฑ ์š”์†Œ ๊ตฌ์„ฑ์„ ํ™•์ธํ•  ์ˆ˜ ์—†์Šต๋‹ˆ๋‹ค.
[์ดˆ๊ธฐํ™”] Kubernetes ๋ฒ„์ „ ์‚ฌ์šฉ: v1.18.1
[์‹คํ–‰ ์ „] ์‹คํ–‰ ์ „ ๊ฒ€์‚ฌ ์‹คํ–‰
[๊ฒฝ๊ณ  IsDockerSystemdCheck]: "cgroupfs"๋ฅผ Docker cgroup ๋“œ๋ผ์ด๋ฒ„๋กœ ๊ฐ์ง€ํ–ˆ์Šต๋‹ˆ๋‹ค. ๊ถŒ์žฅ ๋“œ๋ผ์ด๋ฒ„๋Š” "systemd"์ž…๋‹ˆ๋‹ค. https://kubernetes.io/docs/setup/cri/ ์˜ ๊ฐ€์ด๋“œ๋ฅผ ๋”ฐ๋ฅด์„ธ์š”.
[ํ”„๋ฆฌํ”Œ๋ผ์ดํŠธ] Kubernetes ํด๋Ÿฌ์Šคํ„ฐ ์„ค์ •์— ํ•„์š”ํ•œ ์ด๋ฏธ์ง€ ๊ฐ€์ ธ์˜ค๊ธฐ
[ํ”„๋ฆฌํ”Œ๋ผ์ดํŠธ] ์ธํ„ฐ๋„ท ์—ฐ๊ฒฐ ์†๋„์— ๋”ฐ๋ผ 1~2๋ถ„ ์ •๋„ ์†Œ์š”๋  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
[ํ”„๋ฆฌํ”Œ๋ผ์ดํŠธ] 'kubeadm config images pull'์„ ์‚ฌ์šฉํ•˜์—ฌ ๋ฏธ๋ฆฌ ์ด ์ž‘์—…์„ ์ˆ˜ํ–‰ํ•  ์ˆ˜๋„ ์žˆ์Šต๋‹ˆ๋‹ค.
[kubelet-start] "/var/lib/kubelet/kubeadm-flags.env" ํŒŒ์ผ์— ํ”Œ๋ž˜๊ทธ๊ฐ€ ์žˆ๋Š” kubelet ํ™˜๊ฒฝ ํŒŒ์ผ ์“ฐ๊ธฐ
[kubelet-start] "/var/lib/kubelet/config.yaml" ํŒŒ์ผ์— kubelet ๊ตฌ์„ฑ ์“ฐ๊ธฐ
[kubelet-start] kubelet ์‹œ์ž‘ํ•˜๊ธฐ
[certs] certificateDir ํด๋” "/etc/kubernetes/pki" ์‚ฌ์šฉ
[certs] "ca" ์ธ์ฆ์„œ ๋ฐ ํ‚ค ์ƒ์„ฑ
[certs] "apiserver" ์ธ์ฆ์„œ ๋ฐ ํ‚ค ์ƒ์„ฑ
[์ธ์ฆ์„œ] apiserver ์„œ๋น™ ์ธ์ฆ์„œ๋Š” DNS ์ด๋ฆ„ [ahmed-kvm kubernetes kubernetes.default kubernetes.default.svc kubernetes.default.svc.cluster.local k8smaster] ๋ฐ IP [xxxx xxxx]์— ๋Œ€ํ•ด ์„œ๋ช…๋˜์—ˆ์Šต๋‹ˆ๋‹ค.
[certs] "apiserver-kubelet-client" ์ธ์ฆ์„œ ๋ฐ ํ‚ค ์ƒ์„ฑ
[certs] "front-proxy-ca" ์ธ์ฆ์„œ ๋ฐ ํ‚ค ์ƒ์„ฑ
[certs] "front-proxy-client" ์ธ์ฆ์„œ ๋ฐ ํ‚ค ์ƒ์„ฑ
[certs] "etcd/ca" ์ธ์ฆ์„œ ๋ฐ ํ‚ค ์ƒ์„ฑ
[certs] "etcd/server" ์ธ์ฆ์„œ ๋ฐ ํ‚ค ์ƒ์„ฑ
[์ธ์ฆ์„œ] etcd/์„œ๋ฒ„ ์„œ๋น™ ์ธ์ฆ์„œ๋Š” DNS ์ด๋ฆ„ [ahmed-kvm localhost] ๋ฐ IP [xxxx xxxx]์— ๋Œ€ํ•ด ์„œ๋ช…๋˜์—ˆ์Šต๋‹ˆ๋‹ค.
[certs] "etcd/peer" ์ธ์ฆ์„œ ๋ฐ ํ‚ค ์ƒ์„ฑ
[์ธ์ฆ์„œ] etcd/ํ”ผ์–ด ์„œ๋น„์Šค ์ธ์ฆ์„œ๋Š” DNS ์ด๋ฆ„ [ahmed-kvm localhost] ๋ฐ IP [xxxx xxxx]์— ๋Œ€ํ•ด ์„œ๋ช…๋˜์—ˆ์Šต๋‹ˆ๋‹ค.
[certs] "etcd/healthcheck-client" ์ธ์ฆ์„œ ๋ฐ ํ‚ค ์ƒ์„ฑ
[certs] "apiserver-etcd-client" ์ธ์ฆ์„œ ๋ฐ ํ‚ค ์ƒ์„ฑ
[certs] "sa" ํ‚ค ๋ฐ ๊ณต๊ฐœ ํ‚ค ์ƒ์„ฑ
[kubeconfig] kubeconfig ํด๋” "/etc/kubernetes" ์‚ฌ์šฉ
[kubeconfig] "admin.conf" kubeconfig ํŒŒ์ผ ์ž‘์„ฑ
[kubeconfig] "kubelet.conf" kubeconfig ํŒŒ์ผ ์ž‘์„ฑ
[kubeconfig] "controller-manager.conf" kubeconfig ํŒŒ์ผ ์ž‘์„ฑ
[kubeconfig] "scheduler.conf" kubeconfig ํŒŒ์ผ ์ž‘์„ฑ
[์ œ์–ด ํ‰๋ฉด] ๋งค๋‹ˆํŽ˜์ŠคํŠธ ํด๋” "/etc/kubernetes/manifests" ์‚ฌ์šฉ
[์ œ์–ด ํ‰๋ฉด] "kube-apiserver"์— ๋Œ€ํ•œ ์ •์  ํฌ๋“œ ๋งค๋‹ˆํŽ˜์ŠคํŠธ ์ƒ์„ฑ
W0719 22:06:31.223537 15363 manifests.go:225] ๊ธฐ๋ณธ kube-apiserver ์ธ์ฆ ๋ชจ๋“œ๋Š” "Node,RBAC"์ž…๋‹ˆ๋‹ค. "๋…ธ๋“œ,RBAC" ์‚ฌ์šฉ
[์ œ์–ด ํ‰๋ฉด] "kube-controller-manager"์— ๋Œ€ํ•œ ์ •์  ํฌ๋“œ ๋งค๋‹ˆํŽ˜์ŠคํŠธ ์ƒ์„ฑ
W0719 22:06:31.224263 15363 manifests.go:225] ๊ธฐ๋ณธ kube-apiserver ์ธ์ฆ ๋ชจ๋“œ๋Š” "Node,RBAC"์ž…๋‹ˆ๋‹ค. "๋…ธ๋“œ,RBAC" ์‚ฌ์šฉ
[์ œ์–ด ํ‰๋ฉด] "kube-scheduler"์— ๋Œ€ํ•œ ์ •์  ํฌ๋“œ ๋งค๋‹ˆํŽ˜์ŠคํŠธ ์ƒ์„ฑ
[etcd] "/etc/kubernetes/manifests"์—์„œ ๋กœ์ปฌ etcd์— ๋Œ€ํ•œ ์ •์  Pod ๋งค๋‹ˆํŽ˜์ŠคํŠธ ๋งŒ๋“ค๊ธฐ
[wait-control-plane] kubelet์ด "/etc/kubernetes/manifests" ๋””๋ ‰ํ† ๋ฆฌ์—์„œ ์ •์  ํฌ๋“œ๋กœ ์ œ์–ด ํ”Œ๋ ˆ์ธ์„ ๋ถ€ํŒ…ํ•  ๋•Œ๊นŒ์ง€ ๊ธฐ๋‹ค๋ฆฝ๋‹ˆ๋‹ค. ์ตœ๋Œ€ 4m0์ดˆ๊ฐ€ ์†Œ์š”๋  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
[kubelet-check] 40์ดˆ์˜ ์ดˆ๊ธฐ ์ œํ•œ ์‹œ๊ฐ„์ด ์ง€๋‚ฌ์Šต๋‹ˆ๋‹ค.

Unfortunately, an error has occurred:
    timed out waiting for the condition

This error is likely caused by:
    - The kubelet is not running
    - The kubelet is unhealthy due to a misconfiguration of the node in some way (required cgroups disabled)

If you are on a systemd-powered system, you can try to troubleshoot the error with the following commands:
    - 'systemctl status kubelet'
    - 'journalctl -xeu kubelet'

Additionally, a control plane component may have crashed or exited when started by the container runtime.
To troubleshoot, list all containers using your preferred container runtimes CLI.

Here is one example how you may list all Kubernetes containers running in docker:
    - 'docker ps -a | grep kube | grep -v pause'
    Once you have found the failing container, you can inspect its logs with:
    - 'docker logs CONTAINERID'

์˜ค๋ฅ˜ ์‹คํ–‰ ๋‹จ๊ณ„ wait-control-plane: Kubernetes ํด๋Ÿฌ์Šคํ„ฐ๋ฅผ ์ดˆ๊ธฐํ™”ํ•  ์ˆ˜ ์—†์Šต๋‹ˆ๋‹ค.
์ด ์˜ค๋ฅ˜์˜ ์Šคํƒ ์ถ”์ ์„ ๋ณด๋ ค๋ฉด --v=5 ์ด์ƒ์œผ๋กœ ์‹คํ–‰ํ•˜์‹ญ์‹œ์˜ค.

๋‹น์‹ ์˜ ๋„์›€์„ ์ฃผ์…”์„œ ๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค

์ด ๋ฌธ์ œ์— ์ง๋ฉดํ•œ ์‚ฌ๋žŒ์€ microk8s ์„ค์น˜๋˜์–ด ์žˆ๋Š”์ง€ ํ™•์ธํ•˜๊ณ  ์ œ๊ฑฐํ•˜์„ธ์š”. ๊ทธ๊ฒŒ ๋‚ด ๋ฌธ์ œ์˜€์–ด

sudo kubeadm reset

๋‚ด ๊ฒƒ๋„ ํ•ด๊ฒฐ

์ด ํŽ˜์ด์ง€๊ฐ€ ๋„์›€์ด ๋˜์—ˆ๋‚˜์š”?
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