æ©èœãªã¯ãšã¹ã
kubeadmã䜿çšããŠK8Sã¯ã©ã¹ã¿ãŒããããã€ããå Žåãããã©ã«ãã§ã¯ã©ãŠããããã€ããŒã®å éšIPã¢ãã¬ã¹ã䜿çšãããŠããããã§ãã ãã ããïŒã¯ãã¹ã¯ã©ãŠããããã€ã¡ã³ãã®ãŠãŒã¹ã±ãŒã¹ã®å ŽåïŒkubeletã®--node-ipãªãã·ã§ã³ãèšå®ãããªãã·ã§ã³ãæäŸãããšéåžžã«åœ¹ç«ã¡ãŸãïŒhttps://kubernetes.io/docs/admin/kubelet/ãåç §ïŒã
ãããã£ãŠã kubeadm initåŒã³åºãã¯ã <public_master_ip>
ããŒãã§æ¬¡ã®ããã«ãªããŸãã
kubeadm init --token=<token> --api-advertise-addresses=<public_master_ip> --node-ip=<public_master_ip>
ãŸãã <public_worker_ip>
ããŒãã§ã®kubeadmã®åå ã¯ã次ã®ããã«ãªããŸãã
kubeadm join --token=<token> --node-ip=<public_worker_ip>
ããã«ãããkubeadmã¯ã¯ãã¹ã¯ã©ãŠããããã€ããŒã®å±éã«ç°¡åã«äœ¿çšã§ããŸãã ç§ãç¥ããªãä»ã®ãªãã·ã§ã³ãããã°ãç§ã¯èãããã§ãã ããããç§ã®æ€çŽ¢ã§ã¯è§£æ±ºçãèŠã€ãããŸããã§ããïŒkubeadmã䜿çšïŒã
ãã®ãããçŸåšDigitalOceanã§Kubernetesã¯ã©ã¹ã¿ãŒãã»ããã¢ããããéã«åé¡ãçºçããŠããŸãã ããã©ã«ãã§ã¯ãkubeletã¯ããã©ã«ãã²ãŒããŠã§ã€ã®IPããã€ã³ãããŠå ¬é/ãããŒããã£ã¹ãããŸãããã®å Žåãããã¯ã€ã³ã¿ãŒããããã©ãã£ãã¯ã«é¢ããŠãããããªãã¯IPã§ãã 次ã«ãããããããã¯ãŒã¯ã¢ããªã³ïŒWeaveãªã©ïŒãã»ããã¢ãããã段éã«éãããšããã¹ã¿ãŒã®ã¢ããã¿ã€ãºIPã¯å éšãããã¯ãŒã¯ã®IPã¢ãã¬ã¹ã§ãããã¯ãŒã«ãŒããŒãã¯ãããªãã¯IPã¢ãã¬ã¹ãå ¬éããããšããŠãããããå šäœã厩å£ããŸãïŒ/
解決çã¯ãäžã®ããããããããŠããããã¡ã€ã«ãæŽæ°ããããšã§ãã/etc/systemd/system/kubelet.service.d/10-kubeadm.conf
è¿œå ãã--node-ip=<private_worker_ip>
ãããåäœãããããã«ããªããŒããŠããããšåèµ·åkubeletãã
kubeadm
ãã @ nkratzkeã®ãããªãªãã·ã§ã³ãæž¡ãããšã§ããã©ã«ãã§ãããå®è¡ã§ããå Žåãããã¯çŽ æŽãããããšã ãšç€ºåããŸããã
/etc/systemd/system/kubelet.service.d/10-kubeadm.conf
ãã¡ã€ã«ã®èšå®ã«--node-ip=<private-worker-ip>
ãªãã·ã§ã³ãè¿œå ããŠããåã«èª¬æããã»ããã¢ããã®ãã®åé¡ãä¿®æ£ãããªãããšã確èªãããã£ãã ãã§ãã ããŒãããã®ã€ã³ã¿ãŒãã§ãŒã¹ã§ãªãã¹ã³ããŠããå Žåã§ããKubernetesã¯ããã©ã«ãã²ãŒããŠã§ã€ã䜿çšããŠããŒãéã§éä¿¡ãç¶ããŸãããã®å Žåã¯ãããªãã¯IPã¢ãã¬ã¹ã§ãã
ç§ã¯åãåé¡ãæ±ããŠããŸãã ç§ã¯ããªãã®æ¹æ³ãè©ŠããŸãããããããããŸããããŸããã§ããã ããªãã¯ãããããŸãåããããšãã§ããŸãããïŒ
@agsergiãã©ã€ããŒããããã¯ãŒã¯ãªãã·ã§ã³ãæå¹ã«ããŠDigitalOceanã§k8sã¯ã©ã¹ã¿ãŒãã»ããã¢ããããããšããŠããããããã®åé¡ãçºçããŸããã ãã®æ©èœãç¡å¹ã«ããããšã§ç§ã¯ãããè¡ããŸããããããªããåãããŒãã«ä¹ã£ãŠãããã©ããã¯ããããŸããã
ãã·ã³ã«3ã€ä»¥äžã®NICãæ¥ç¶ãããŠããå Žåã§ãããã®åé¡ã¯åŒãç¶ãçºçãããšæããŸãã
ã¿ããªã ãããŠããã¯ç§ã®ããã«åããã
VMã«2ã€ã®ã€ã³ã¿ãŒãã§ã€ã¹ããããŸãã1ã€ã¯NATçšã§ããã1ã€ã¯hostonly-adaptorçšã§ãã ããã©ã«ãã§ã¯ãä»ã®ã€ã³ã¿ãŒãã§ãŒã¹ã䜿çšãããå Žåã¯ãkubeadminãããã©ã«ãã®ã€ã³ã¿ãŒãã§ãŒã¹IPïŒç§ã®å Žåã¯NATïŒã䜿çšããŠããŸããã
$ sudo kubeadm init --apiserver-advertise-address =
@luxasãªããããkind / supportãšããŠã¿ã°ä»ããããŠããã®ã§ããïŒ ããã©ã«ãã«ãŒãã®ãœãŒã¹ã§ã¯ãªãããŒãIPã§kubeadmã䜿çšããæ¹æ³ã¯ãããŸããïŒ
@evocageã¯ãããŸãã--apiserver-advertise-address = ã©ããããããšãã
Scalewayã§åãåé¡ãçºçããŸããã
ãã¹ã¿ãŒãåæåãããšãã«--apiserver-advertise-address=<private_net_IP>
ãæž¡ããŸããããããŒãïŒ kubeadm join --toke=<token> <master_private_IP>:6443
ïŒãè¿œå ããããšãã«kube-proxyãšweave-netããããèµ·åããŸããïŒãããã®åæãšã©ãŒïŒ
ãããããããªãã¯IPãããŒãã«æ¥ç¶ããŠåèµ·åãããšããã¹ãŠããŸããããŸãïŒthinkingïŒ
äœãæ¡ãïŒ
äžéšã®ããŒãã®ã¿ãVMã«è»¢éã§ããåäžã®IPãæã€VMãã¹ãã§kubernetesãã»ããã¢ããããããšããå Žåãåãåé¡ãçºçããŸãã ãããæ©èœãããããã®åé¿çã¯ãããŸããïŒ
+1ãããã£ãã ãã§ãã ãã¹ãŠã®ãã©ã€ããŒãIPã䜿çšããŠäžé£ã®DigitaloceanVMãå®è¡ããããšããŠããŸããããããªãã¯ã«é¢ããã¢ãã¬ã¹ãäœããã®åœ¢ã§ã¯ã©ã¹ã¿ãŒã«äŸµå ¥ãç¶ããŠããŸãã
ããããã¹ã¿ãŒã§å®è¡ããããšã§ããã©ã€ããŒãIPãæ©èœãããããšãã§ããŸããã
kubeadm init --apiserver-advertise-address=<private-master-ip> init
--node-ip=<private-node-ip>
ã/etc/systemd/system/kubelet.service.d/10-kubeadm.conf
ã«è¿œå ããããŒã¢ã³ããªããŒãããkubeletãåèµ·åããŠããã以äžãå®è¡ããŸãã
kubeadm join --token <token> <private-master-ip>:6443 --discovery-token-ca-cert-hash sha256:<hash>
@mongrelionãã¹ã¿ãŒ<->ããŒãéã®ã©ã®ã¿ã€ãã®éä¿¡ããŸã ãããªãã¯ã€ã³ã¿ãŒãã§ã€ã¹ã䜿çšããŠããŸããïŒ ãããåçŸã§ããªãã£ãã®ã§ãkubernetesãäºæããªãåäœãããŠãããã©ãããç¥ããããšæããŸãã
ãã£ãïŒ ãã¹ã¿ãŒãæ£ããå Žæã§éå§ããããšãä¿èšŒããããã®--apiserver-advertise-address
ãšãkubeletæ§æã®--node-ip
çµã¿åããã¯éæ³ã®çµã¿åããã§ããã
ãã ãããã®ãªã¯ãšã¹ãããšã«ã --node-ip
ãªãã·ã§ã³ãkubeadm
çŽæ¥å
¥ããŠãæ§æãã¡ã€ã«ãæ£ããåæåãããããã«ãããšãã¯ã©ã¹ã¿ãŒãèµ·åããããšããç§ã®ãããªç¡ç¥ãªåå¿è
ã«åœ¹ç«ã¡ãŸã:)
ãã®èŠçŽãããããšã@jamiehannaford ã ããããã£ãšç®ã«èŠãã圢ã§ææžåããå¿ èŠããããšæããŸããïŒ
@luxasããããã®ãŠãŒã¹ã±ãŒã¹ãæ瀺çã«ææžåããŠãããšäŸ¿å©ã ãšæããŸã
@jamiehannafordãããv1.9ã®ããã¥ã¡ã³ãã®åã·ã£ããã«ã«è¿œå ãããå Žåã¯ã httpsïŒ//github.com/kubernetes/website/pull/6103ã«è¿œå ãã段èœãéã£ãŠ
@fabriziopandiniãã¡ããã§ãïŒ å®äº
ããã«ã¡ã¯ã
ãã£ãŒãããã¯ããé¡ãããŸãã kubeadmã䜿çšããŠå®å
šãªåäžããŒãã¯ã©ã¹ã¿ãŒãæ§ç¯ããããšããŠããŸãã
ãã¹ãŠã®kubernetesãµãŒãã¹ãããŒã«ã«ãã¹ãã«ãã€ã³ããããã®ã§ãããæ©èœããŸããã
ãã®ã³ãã³ãã䜿çšãããšãã¯ã©ã¹ã¿ãŒãäœæãããŸãã
kubeadm init \
--pod-network-cidr=10.244.0.0/16 \
--apiserver-advertise-address=127.0.0.1 \
--apiserver-cert-extra-sans=127.0.0.1,staging.my-server.net
ãã ãã /etc/kubernetes/admin.conf
ãšãã®åéã«ã¯ããã¹ã¿ãŒã®ãããªãã¯IPã¢ãã¬ã¹ãå«ãŸããŠããŸãã
server: https://75.xx.yy.zz:6443
--nodeã¢ãããŒããè©ŠããŠã¿ãŸãããããã«å¯Ÿãã解決çãèŠã€ããã®ãæäŒã£ãŠããã ããã°å¹žãã§ãã
ç§ã®ãŠãŒã¹ã±ãŒã¹ïŒ
ç§ã¯ãã¹ããŒãžã³ã°ç°å¢ãšããŠããããŠããããHAãæ°ã«ããªãå°ããªãããžã§ã¯ãã®å®çšŒåç°å¢ãšããŠäœ¿çšãããé äžãªãã·ã³ãæã£ãŠããŸãã SSHã䜿çšããkubectlã䜿çšããŠã¯ã©ã¹ã¿ãŒãå¶åŸ¡ã§ããŸãã
ããããšãã
ç§ã¯ããã§@ Mosho1ãšãŸã£ããåãåé¡ãæ±ããŠããŠããã®ãŸããã
ç§ã¯DOãšCoreOSã䜿çšããŠããŸãããããã¯å®éã«ã¯ã©ã¡ãã«ãé¢é£ããŠããããä»ã®ãããã€ããŒããã£ã¹ããªãã¥ãŒã·ã§ã³ã§çºçããå¯èœæ§ããããŸãã ãŸããDOã®ãã©ã€ããŒããããã¯ãŒã¯ãæå¹ãŸãã¯ç¡å¹ã«ãªã£ãŠããããšãšã¯é¢ä¿ãããŸãããã©ã¡ãã®å Žåãåé¡ãåçŸããŸããã
äœãèµ·ããããšãããšã kubelet
ã«ãã£ãŠèšå®ãããkubeadm
ã¯ã€ã³ã¿ãŒãã§ãŒã¹ã調ã¹ãå²ãåœãŠãããIPãŸãã¯äœ¿çšå¯èœãªã€ã³ã¿ãŒãã§ãŒã¹ã«é¢ä¿ãªããç¬èªã®ãã©ã€ããŒããµãããããããã¯ã¹ã«æã¡èŸŒãããšã決å®ããŸããããããã¡ã€ã³ããšèŠãªããã®ãšåããã®ïŒæåã®ãã®ïŒWANã®ãã®ïŒç§ã¯ç¥ããªãïŒãããã¯ifconfig
çµç±ã§ã¯è¡šç€ºãããŸãããã ip addr
çµç±ã§ç°¡åã«è¡šç€ºãããã«ãŒããèšå®ãããŸãããããŒãeth0
ãæ¥ç¶ããDOãããã¯ãŒã¯äžãé£è¡ããå¯èœæ§ã¯ãããŸããã
ç·šéïŒ @klausenbuskã®ãããã§ã
解決çã¯ãå®éã«äœ¿çšããIPãkubeletã«æ瀺ããããšã§ãã ãªãã·ã§ã³ã®ãã©ã€ããŒããããã¯ãŒã¯ã䜿çšããå Žåã¯ããããªãã¯ãããã¯ãŒã¯ãŸãã¯ãã©ã€ããŒããããã¯ãŒã¯ã«ããããšãã§ããŸãã
ãããç§ã--node-ip
å©çšããæ¹æ³ã§ãã 泚æããŠãã ãããããã¯KUBELET_EXTRA_ARGS
ããŠããããã¡ã€ã«ã«ãŸã èšå®ãããŠããªãããšãåæãšããŠããŸãã
$ DROPLET_IP_ADDRESS=$(ip addr show dev eth0 | awk 'match($0,/inet (([0-9]|\.)+).* scope global eth0$/,a) { print a[1]; exit }')
$ echo $DROPLET_IP_ADDRESS # check this, jus tin case
$ echo "Environment=\"KUBELET_EXTRA_ARGS=--node-ip=$DROPLET_IP_ADDRESS\"" >> /etc/systemd/system/kubelet.service.d/10-kubeadm.conf
$ systemctl daemon-reload
$ systemctl restart kubelet
@lloekièšäºãããããšãã ããã¥ã¡ã³ããæŽæ°ããŠããã ããŸããã//github.com/kubernetes/website/blob/master/docs/setup/independent/troubleshooting-kubeadm.md
ãããã£ãŠãWAN 1ïŒeth0ïŒãéžæãããããªãã¯IPã確èªïŒãŸãã¯ç¡èŠïŒãããããããã¹ãŠã®ããŒãeth0ãåããªã³ã¯äžã
ããããã§ããïŒ ããã¯åãªãã¢ã³ã«ãŒIPã§ããå¯èœæ§ããããŸãïŒ curl http://169.254.169.254/metadata/v1/interfaces/public/0/anchor_ipv4/address
ãšæ¯èŒããŠãã ããïŒ
@klausenbuskããªãã¯çµ¶å¯Ÿã«æ£ããã§ããããã¯ç§ã®åŽã®é¢çœãæ¶æž¬ã§ãããããããªããïŒ ä»¥äžã¯ãã¹ã¿ãŒããŒãããã®ãã®ã§ãçŸåš--node-ip
ãŸãã
ããã§ãkubeletã¯ãããã§ãªããšãã«åœ¹ç«ã€å¯èœæ§ããããšããä»®å®ã®äžã§ããããæŸãäžããŠããããã«èŠããŸããïŒ
$ curl http://169.254.169.254/metadata/v1/interfaces/public/0/anchor_ipv4/address
10.19.0.39
$ ip addr show dev eth0
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff
inet yyy.yyy.yyy.yyy/20 brd yyy.yyy.yyy.255 scope global eth0
valid_lft forever preferred_lft forever
inet 10.19.0.39/16 brd 10.19.255.255 scope global eth0
valid_lft forever preferred_lft forever
ããã¥ã¡ã³ããæŽæ°ããŠããã ããŸããã
@jamiehannafordç§ã¯ãããã§ããããã«
/ assign @liztio
ç§ã¯ãããèŠãŠããŠãŒã¶ãŒã--node-ip
åŒæ°ãkubeadmã«è¿œå ããããã«èŠæ±ãããšããŠããkubeletæ§æãå€æŽããããã§ææ¡ãããŠãã@jamiehannafordã®ãããªãã©ã¡ãŒã¿ãŒã䜿çšããããšãã³ã³ã»ã³ãµã¹ããããšæããŸãã
https://github.com/kubernetes/kubeadm/issues/203#issuecomment -335416377
ïŒãŸãã¯ãkubletãåèµ·åããåã«$ KUBELET_EXTRA_ARGSã«è¿œå ããããšãã§ããŸãïŒã
äœåãªcmdåŒæ°ãkubeadmã«è¿œå ããããšãããããšãã決å®ãèãããšããã®åé¡ãéããã®ã¯å®å šãããããªããšæããŸã.... kubeadm MasterConfigãªãã·ã§ã³ã§ãããæå¹ã«ããèšç»ããªãéãïŒã©ãããããã?? ...ãŠãŒã¶ãŒãkubeletæ§æãç·šéããå€æŽãæåã§ç¢ºèªããŸãïŒã
ç·šéïŒãŸãã¯ãå¯èœã§ããã°åçkubeletæ§æã䜿çšããŸããïŒ
äžèšã®ããã¥ã¡ã³ãå€æŽã«é¢ãããã¹ãŠã®ææ¡ã¯ããŒãžãããŠããããã§ãã
@timstclair @liztio
ãããéããŠã倧äžå€«ã§ãã
Kubernetes 1.11ã§ã¯ã/ etc / systemd / system / kubelet.service.d /20-custom.confã®KUBELET_EXTRA_ARGSã®èšå®ãæ©èœããªããªã£ãããšã«æ³šæããŠãã ããã/etc/sysconfig/kubeletã§èšå®ããå¿ èŠããããŸãïŒæ§æãå°ãç°ãªããŸãïŒããããã®ãã¡ã€ã«ã®ïŒã
@stepin kubeadmã䜿çšããŠ1.11ã¯ã©ã¹ã¿ãŒãã»ããã¢ããããåŸã§ãããååŸããŸããcat: /etc/sysconfig/kubelet: No such file or directory
/etc/systemd/system/kubelet.service.d/20-custom.conf
ãååšããªãã®ã§ãããã§äœãããŠããã®ãããããŸããã
ããªããèšã£ãããšãæ¬åœãªããèšå®ããããããã®ã²ãŒã ãç¶ããŠããããã§ãã
ããã§kubeletconfigã®ããã«å¥ã®å ŽæãèŠã€ããããšãã§ããŸããïŒ /etc/default/kubelet
å°æ¥ã®æ è¡è ã«ãšã£ãŠïŒå°ãªããšãæ¥é±ã¯ïŒãããã¯ããŸãããããã§ãïŒ
PRIVATE_IP=10.99.0.0
echo "KUBELET_EXTRA_ARGS=--node-ip=$PRIVATE_IP" > /etc/default/kubelet
systemctl daemon-reload
systemctl restart kubelet
æããã«ãIPããã®ç¹å®ã®ããŒãã«ãããã®ã«å€æŽããå¿ èŠããããŸãã
å
責äºé
ïŒKubernetesããã§ãã¯ããŠããã ããªã®ã§ããããã²ã©ãããšãããŠããªãããšãä¿èšŒãããã®ã§ã¯ãããŸããã ãã ãã /etc/systemd/system/kubelet.service.d/10-kubeadm.conf
ã¯/etc/default/kubelet
æããŠããã®ã§ãããã¯æ£ããããšã ãšæããŸãã
@ jazoom-ã³ã¡ã³ãããããšãããããŸããã€ãã«systemdãŠããããã¡ã€ã«ããã£ãšè©³ããèªãããã«ãªããŸããã 1.10ã§åãæ§æãèµ·åã§ãããã¹ãŠãæ©èœããã®ã§ãæ°ãçã£ãŠãããšæããŸãã... 1.11ã§æ§æãèµ·åãããšãèšå®ããŠããã«ã¹ã¿ã --node-ip
ããŸã£ããé©çšãããŸããã§ããã /etc/default/kubelet
è¿œå ã®åŒæ°ãè¿œå ããããã«åãæ¿ãããšãåé¡ãä¿®æ£ãããŸããã
@geerlingguyã©ãããããŸããŠã
å°ãªããšããã1.11ã¯ã©ã¹ã¿ãŒãèµ·åãããã³ã«æ©èœããããšããã±ãŒã¹ã§ã¯ãããŸããã§ããã ãããã®åçŸäžå¯èœãªåé¡ã¯æ¬åœã«ããªãã倢äžã«ãããã§ãããã
ãKubeadm1.13ãã§ããã«ééããŸããã 以äžã䜿çšããŠä¿®æ£ããŸããã
1ïŒã-node-ipããã/var/lib/kubelet/kubeadm-flags.envãã«è¿œå ããŸãã
[root@Node-18121 ~]# cat /var/lib/kubelet/kubeadm-flags.env
KUBELET_KUBEADM_ARGS=--cgroup-driver=systemd --network-plugin=cni --pod-infra-container-image=k8s.gcr.io/pause:3.1 --node-ip=10.10.10.1
2ïŒKubeletãåèµ·åããŸãã
systemctl daemon-reload && systemctl restart kubelet
^ NICã«è¡šç€ºãããªããããŒãã£ã³ã°IPã§ãããæ©èœãããæ¹æ³ã誰ããç¥ã£ãŠããå Žåã¯ãç§ã«ç¥ãããŠãã ããã ãã以å€ã®å Žåã¯æåããŸãã
ããã«ã¡ã¯ã
ãã¡ãã®https://wiki.hetzner.de/index.php/Cloud_floating_IP_persistent/enããè©Šã
ããã¯ãããããŒã®ããã«åããŸãããããç§ã¯ãããäžè¬çã§ãããšæããŸãã
ãŠãŒã²ã³
ããã¯å®ç§ã«æ©èœããŸããã ããããšãããããŸããã
ãKubeadm1.13ãã§ãã®åé¡ãçºçããŸããããã®åé¡ã¯ã次ã®æ¹æ³ã䜿çšããŠä¿®æ£ãããŸããã
- ã/var/lib/kubelet/kubeadm-flags.envãã«ã--node-ipããè¿œå ããŸãã
[root@Node-18121 ~]# cat /var/lib/kubelet/kubeadm-flags.env KUBELET_KUBEADM_ARGS=--cgroup-driver=systemd --network-plugin=cni --pod-infra-container-image=k8s.gcr.io/pause:3.1 --node-ip=10.10.10.1
- Kubeletãåèµ·åããŸãã
systemctl daemon-reload && systemctl restart kubelet
ã©ããããããšããåã
æãåèã«ãªãã³ã¡ã³ã
@stepin kubeadmã䜿çšããŠ1.11ã¯ã©ã¹ã¿ãŒãã»ããã¢ããããåŸã§ãããååŸããŸãã
cat: /etc/sysconfig/kubelet: No such file or directory
/etc/systemd/system/kubelet.service.d/20-custom.conf
ãååšããªãã®ã§ãããã§äœãããŠããã®ãããããŸãããããªããèšã£ãããšãæ¬åœãªããèšå®ããããããã®ã²ãŒã ãç¶ããŠããããã§ãã
ããã§kubeletconfigã®ããã«å¥ã®å ŽæãèŠã€ããããšãã§ããŸããïŒ
/etc/default/kubelet
å°æ¥ã®æ è¡è ã«ãšã£ãŠïŒå°ãªããšãæ¥é±ã¯ïŒãããã¯ããŸãããããã§ãïŒ
æããã«ãIPããã®ç¹å®ã®ããŒãã«ãããã®ã«å€æŽããå¿ èŠããããŸãã
å 責äºé ïŒKubernetesããã§ãã¯ããŠããã ããªã®ã§ããããã²ã©ãããšãããŠããªãããšãä¿èšŒãããã®ã§ã¯ãããŸããã ãã ãã
/etc/systemd/system/kubelet.service.d/10-kubeadm.conf
ã¯/etc/default/kubelet
æããŠããã®ã§ãããã¯æ£ããããšã ãšæããŸãã