先ほどコマンドを使用して、をインストールしkubeadmました。kubelet試してみると、次のような結果が得られます。kubectl 1.26.0apt installsystemctl status kubelet
● kubelet.service - kubelet: The Kubernetes Node Agent
Loaded: loaded (/lib/systemd/system/kubelet.service; enabled; vendor preset: enabled)
Drop-In: /etc/systemd/system/kubelet.service.d
└─10-kubeadm.conf
Active: activating (auto-restart) (Result: exit-code) since Sat 2022-12-10 16:46:24 PST; 9s ago
Docs: https://kubernetes.io/docs/home/
Process: 6420 ExecStart=/usr/bin/kubelet $KUBELET_KUBECONFIG_ARGS $KUBELET_CONFIG_ARGS $KUBELET_KUBEADM_ARGS $KUBELET_EXTRA_ARGS (code=exited, status=1/FAILURE)
Main PID: 6420 (code=exited, status=1/FAILURE)
CPU: 103ms
この問題が何であるか、どのように解決するのかわかりません。
これも次の結果ですkubectl config view。
apiVersion: v1
clusters:
- cluster:
certificate-authority-data: DATA+OMITTED
server: https://192.168.1.2:6443
name: kubernetes
contexts:
- context:
cluster: kubernetes
user: kubernetes-admin
name: kubernetes-admin@kubernetes
current-context: kubernetes-admin@kubernetes
kind: Config
preferences: {}
users:
- name: kubernetes-admin
user:
client-certificate-data: DATA+OMITTED
client-key-data: DATA+OMITTED
内容は次のとおりです/etc/systemd/system/kubelet.service.d/10-kubeadm.conf。
GNU nano 6.2 /etc/systemd/system/kubelet.service.d/10-kubeadm.conf
# Note: This dropin only works with kubeadm and kubelet v1.11+
[Service]
Environment="KUBELET_KUBECONFIG_ARGS=--bootstrap-kubeconfig=/etc/kubernetes/bootstrap-kubelet.conf --kubeconfig=/etc/kubernetes/kubelet.conf"
Environment="KUBELET_CONFIG_ARGS=--config=/var/lib/kubelet/config.yaml"
# This is a file that "kubeadm init" and "kubeadm join" generates at runtime, populating the KUBELET_KUBEADM_ARGS variable dynamically
EnvironmentFile=-/var/lib/kubelet/kubeadm-flags.env
# This is a file that the user can use for overrides of the kubelet args as a last resort. Preferably, the user should use
# the .NodeRegistration.KubeletExtraArgs object in the configuration files instead. KUBELET_EXTRA_ARGS should be sourced from this file.
EnvironmentFile=-/etc/default/kubelet
ExecStart=
ExecStart=/usr/bin/kubelet $KUBELET_KUBECONFIG_ARGS $KUBELET_CONFIG_ARGS $KUBELET_KUBEADM_ARGS $KUBELET_EXTRA_ARGS
クーバーネティス版：
kubeadm version: &version.Info{Major:"1", Minor:"26", GitVersion:"v1.26.0", GitCommit:"b46a3f887ca979b1a5d14fd39cb1af43e7e5d12d", GitTreeState:"clean", BuildDate:"2022-12-08T19:57:06Z", GoVersion:"go1.19.4", Compiler:"gc", Platform:"linux/amd64"}
使用中のクラウド：localhost
インストール方法：https://kubernetes.io/docs/setup/product-environment/tools/kubeadm/install-kubeadm/
ホストオペレーティングシステム：
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 22.04.1 LTS
Release: 22.04
Codename: jammy
CNIとバージョン：CRIとバージョン：
/.kube/configファイルは次のとおりです。
apiVersion: v1
clusters:
- cluster:
certificate-authority-data: LS0tLS1CRUdJTiBDRVJUSUZJQ0FURS0tLS0tCk1JSUMvakN>
server: https://192.168.1.2:6443
name: kubernetes
contexts:
- context:
cluster: kubernetes
user: kubernetes-admin
name: kubernetes-admin@kubernetes
current-context: kubernetes-admin@kubernetes
kind: Config
preferences: {}
users:
- name: kubernetes-admin
user:
client-certificate-data: LS0tLS1CRUdJTiBDRVJUSUZJQ0FURS0tLS0tCk1JSURJVENDQW>
client-key-data: LS0tLS1CRUdJTiBSU0EgUFJJVkFURSBLRVktLS0tLQpNSUlFb2dJQkFBS0>
/etc/containerd/config.tomlファイルは次のとおりです。
[plugins]
[plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc]
[plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc.options]
SystemdCgroup = true
[plugins."io.containerd.grpc.v1.cri"]
sandbox_image = "registry.k8s.io/pause:3.2"
編集：結果は次のとおりですjournalctl -xu kubelet.service。
Dec 06 22:14:42 a systemd[1]: Started kubelet: The Kubernetes Node Agent.
░░ Subject: A start job for unit kubelet.service has finished successfully
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ A start job for unit kubelet.service has finished successfully.
░░
░░ The job identifier is 11743.
Dec 06 22:14:43 a kubelet[85576]: I1206 22:14:43.254559 85576 server.go:413] "Kubelet version" kubeletVersion="v1.25.4"
Dec 06 22:14:43 a kubelet[85576]: I1206 22:14:43.254699 85576 server.go:415] "Golang settings" GOGC="" GOMAXPROCS="" GOTRACEBACK=""
Dec 06 22:14:43 a kubelet[85576]: I1206 22:14:43.255385 85576 server.go:576] "Standalone mode, no API client"
Dec 06 22:14:43 a kubelet[85576]: I1206 22:14:43.295733 85576 server.go:464] "No api server defined - no events will be sent to API server"
Dec 06 22:14:43 a kubelet[85576]: I1206 22:14:43.295813 85576 server.go:660] "--cgroups-per-qos enabled, but --cgroup-root was not specified. defaulting to /"
Dec 06 22:14:43 a kubelet[85576]: E1206 22:14:43.296299 85576 run.go:74] "command failed" err="failed to run Kubelet: running with swap on is not supported, please disable swap! or set --fail-s>
Dec 06 22:14:43 a systemd[1]: kubelet.service: Current command vanished from the unit file, execution of the command list won't be resumed.
Dec 06 22:14:43 a systemd[1]: kubelet.service: Main process exited, code=exited, status=1/FAILURE
░░ Subject: Unit process exited
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ An ExecStart= process belonging to unit kubelet.service has exited.