Minikube : インストール2020/08/07 |
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シングルノードで Kubernetes クラスターを構成可能な Minikube をインストールします。
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仮想マシンを利用するため、Minikube でサポートするハイパーバイザーをインストールしておきます。
当例では こちらの [1] の通り KVM をインストールして進めます。 |
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| [3] | Minikube と その他 必要なツールをインストールします。 |
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# kubectl インストール [root@dlp ~]# snap install kubectl --classic kubectl 1.18.6 from Canonical installed wget https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64 -O minikube [root@dlp ~]# wget https://storage.googleapis.com/minikube/releases/latest/docker-machine-driver-kvm2 [root@dlp ~]# chmod 755 minikube docker-machine-driver-kvm2
[root@dlp ~]#
[root@dlp ~]# mv minikube docker-machine-driver-kvm2 /usr/local/bin/
minikube version minikube version: v1.12.2 commit: be7c19d391302656d27f1f213657d925c4e1cfc2-dirty |
| [4] | Minikube を利用する任意のユーザーを [libvirt] グループに登録しておきます。 |
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[root@dlp ~]# usermod -aG libvirt cent |
| [5] | [libvirt] グループに登録した任意のユーザーで Minikube を起動します。 |
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# minikube 起動 [cent@dlp ~]$ minikube start --vm-driver=kvm2
* minikube v1.12.2 on Centos 8.2.2004
* Using the kvm2 driver based on user configuration
* Downloading VM boot image ...
> minikube-v1.12.2.iso.sha256: 65 B / 65 B [-------------] 100.00% ? p/s 0s
> minikube-v1.12.2.iso: 173.73 MiB / 173.73 MiB [] 100.00% 41.05 MiB p/s 5s
* Starting control plane node minikube in cluster minikube
* Downloading Kubernetes v1.18.3 preload ...
> preloaded-images-k8s-v5-v1.18.3-docker-overlay2-amd64.tar.lz4: 510.91 MiB
* Creating kvm2 VM (CPUs=2, Memory=3900MB, Disk=20000MB) ...
* Preparing Kubernetes v1.18.3 on Docker 19.03.12 ...
* Verifying Kubernetes components...
* Enabled addons: default-storageclass, storage-provisioner
* Done! kubectl is now configured to use "minikube"
# 状態確認 [cent@dlp ~]$ minikube status minikube type: Control Plane host: Running kubelet: Running apiserver: Running kubeconfig: Configured minikube service list |-------------|------------|--------------|-----| | NAMESPACE | NAME | TARGET PORT | URL | |-------------|------------|--------------|-----| | default | kubernetes | No node port | | kube-system | kube-dns | No node port | |-------------|------------|--------------|-----|[cent@dlp ~]$ minikube docker-env export DOCKER_TLS_VERIFY="1" export DOCKER_HOST="tcp://192.168.39.10:2376" export DOCKER_CERT_PATH="/home/cent/.minikube/certs" export MINIKUBE_ACTIVE_DOCKERD="minikube" # To point your shell to minikube's docker-daemon, run: # eval $(minikube -p minikube docker-env)[cent@dlp ~]$ kubectl cluster-info Kubernetes master is running at https://192.168.39.10:8443 KubeDNS is running at https://192.168.39.10:8443/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy To further debug and diagnose cluster problems, use 'kubectl cluster-info dump'.[cent@dlp ~]$ kubectl get nodes NAME STATUS ROLES AGE VERSION minikube Ready master 3m20s v1.18.3 # 仮想マシンへ SSH アクセス [cent@dlp ~]$ minikube ssh
_ _
_ _ ( ) ( )
___ ___ (_) ___ (_)| |/') _ _ | |_ __
/' _ ` _ `\| |/' _ `\| || , < ( ) ( )| '_`\ /'__`\
| ( ) ( ) || || ( ) || || |\`\ | (_) || |_) )( ___/
(_) (_) (_)(_)(_) (_)(_)(_) (_)`\___/'(_,__/'`\____)
$
$ hostname minikube docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES a80d9651ddf9 67da37a9a360 "/coredns -conf /etc…" 3 minutes ago Up 3 minutes k8s_coredns_coredns-66bff467f8-vgdr5_kube-system_bd2eb6c3-2b38-4a76-bd0e-3525d20e2472_0 8f1e0b90acd7 k8s.gcr.io/pause:3.2 "/pause" 3 minutes ago Up 3 minutes k8s_POD_coredns-66bff467f8-vgdr5_kube-system_bd2eb6c3-2b38-4a76-bd0e-3525d20e2472_0 974e50e95e3b 9c3ca9f065bb "/storage-provisioner" 3 minutes ago Up 3 minutes k8s_storage-provisioner_storage-provisioner_kube-system_addbac2e-2a7c-4559-902f-74a9c5365107_0 2c006bb2352f k8s.gcr.io/pause:3.2 "/pause" 3 minutes ago Up 3 minutes k8s_POD_storage-provisioner_kube-system_addbac2e-2a7c-4559-902f-74a9c5365107_0 82d6e1b5ba94 3439b7546f29 "/usr/local/bin/kube…" 4 minutes ago Up 4 minutes k8s_kube-proxy_kube-proxy-lrccx_kube-system_74423dd9-1e01-49f9-bbac-01f1beba4340_0 fe7b3b4343a3 k8s.gcr.io/pause:3.2 "/pause" 4 minutes ago Up 4 minutes k8s_POD_kube-proxy-lrccx_kube-system_74423dd9-1e01-49f9-bbac-01f1beba4340_0 ab28a803cb79 76216c34ed0c "kube-scheduler --au…" 4 minutes ago Up 4 minutes k8s_kube-scheduler_kube-scheduler-minikube_kube-system_dcddbd0cc8c89e2cbf4de5d3cca8769f_0 503b665d949e da26705ccb4b "kube-controller-man…" 4 minutes ago Up 4 minutes k8s_kube-controller-manager_kube-controller-manager-minikube_kube-system_ba963bc1bff8609dc4fc4d359349c120_0 c8d81600d005 303ce5db0e90 "etcd --advertise-cl…" 4 minutes ago Up 4 minutes k8s_etcd_etcd-minikube_kube-system_72afc3170ee1a04916feee5056498e4c_0 16b9f903cfb4 7e28efa976bd "kube-apiserver --ad…" 4 minutes ago Up 4 minutes k8s_kube-apiserver_kube-apiserver-minikube_kube-system_5fba823e15c81e5d38018261e6034e3c_0 b6aa1ac65e77 k8s.gcr.io/pause:3.2 "/pause" 4 minutes ago Up 4 minutes k8s_POD_etcd-minikube_kube-system_72afc3170ee1a04916feee5056498e4c_0 6397bb1cb087 k8s.gcr.io/pause:3.2 "/pause" 4 minutes ago Up 4 minutes k8s_POD_kube-scheduler-minikube_kube-system_dcddbd0cc8c89e2cbf4de5d3cca8769f_0 db6174868f94 k8s.gcr.io/pause:3.2 "/pause" 4 minutes ago Up 4 minutes k8s_POD_kube-controller-manager-minikube_kube-system_ba963bc1bff8609dc4fc4d359349c120_0 7d6416804e12 k8s.gcr.io/pause:3.2 "/pause" 4 minutes ago Up 4 minutes k8s_POD_kube-apiserver-minikube_kube-system_5fba823e15c81e5d38018261e6034e3c_0
$
exit
# minikube を停止する場合は以下 [cent@dlp ~]$ minikube stop * Stopping node "minikube" ... * 1 nodes stopped. # minikube を開始する場合は以下 [cent@dlp ~]$ minikube start * minikube v1.12.2 on Centos 8.2.2004 * Using the kvm2 driver based on existing profile * Starting control plane node minikube in cluster minikube * Restarting existing kvm2 VM for "minikube" ... * Preparing Kubernetes v1.18.3 on Docker 19.03.12 ... * Verifying Kubernetes components... * Enabled addons: default-storageclass, storage-provisioner * Done! kubectl is now configured to use "minikube" # minikube 仮想マシンを削除する場合は以下 [cent@dlp ~]$ minikube delete * Deleting "minikube" in kvm2 ... * Removed all traces of the "minikube" cluster. |
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