2025年8月15日金曜日

Ubuntu20.04 に Minikube をベアメタルインストールする

前提

  • Hyper-V を使用
  • OS: Ubuntu Server 20.04 LST
  • 標準インストール直後からの開始

ファイアウォールを OFF に

本当はまじめに穴あけしなきゃいけないのだけど、とりあえず動作確認という事で…

sudo ufw disable

Minikube の none ドライバ実行に必要なパッケージのインストール

conntrack

sudo apt install conntrack

containernetworking-plugins

CNI_PLUGIN_VERSION="v1.7.1"
CNI_PLUGIN_TAR="cni-plugins-linux-amd64-$CNI_PLUGIN_VERSION.tgz" # change arch if not on amd64
CNI_PLUGIN_INSTALL_DIR="/opt/cni/bin"

curl -LO "https://github.com/containernetworking/plugins/releases/download/$CNI_PLUGIN_VERSION/$CNI_PLUGIN_TAR"
sudo mkdir -p "$CNI_PLUGIN_INSTALL_DIR"
sudo tar -xf "$CNI_PLUGIN_TAR" -C "$CNI_PLUGIN_INSTALL_DIR"
rm "$CNI_PLUGIN_TAR"

crictl

DOWNLOAD_DIR="/usr/local/bin"
sudo mkdir -p "$DOWNLOAD_DIR"
CRICTL_VERSION="v1.33.0"
ARCH="amd64"
curl -L "https://github.com/kubernetes-sigs/cri-tools/releases/download/${CRICTL_VERSION}/crictl-${CRICTL_VERSION}-linux-${ARCH}.tar.gz" | sudo tar -C $DOWNLOAD_DIR -xz

kubectl

curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
sudo install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl

Docker

# Add Docker's official GPG key:
sudo apt-get update
sudo apt-get install ca-certificates curl
sudo install -m 0755 -d /etc/apt/keyrings
sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc

# Add the repository to Apt sources:
echo \
           "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
             $(. /etc/os-release && echo "${UBUNTU_CODENAME:-$VERSION_CODENAME}") stable" | \
               sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
               sudo apt-get update
 sudo apt-get install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

cri-docker

curl -LO https://github.com/Mirantis/cri-dockerd/releases/download/v0.3.18/cri-dockerd_0.3.18.3-0.ubuntu-focal_amd64.deb
sudo apt install -y ./cri-dockerd_0.3.18.3-0.ubuntu-focal_amd64.deb

Minikube

curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube_latest_amd64.deb
sudo dpkg -i minikube_latest_amd64.deb

OS 設定

何やっているか知らないけど、 minikube start --driver=none で怒られたので実行した。

sudo sysctl fs.protected_regular=0

Minikube クラスタの作成

sudo minikube start --driver=none

動作確認

mikoto@kubernetes:~$ sudo kubectl get nodes
NAME         STATUS   ROLES           AGE     VERSION
kubernetes   Ready    control-plane   7m51s   v1.33.1

mikoto@kubernetes:~$ sudo kubectl run hello-world --image=hello-world --restart=Never
pod/hello-world created

mikoto@kubernetes:~$ sudo kubectl get pod
NAME          READY   STATUS      RESTARTS   AGE
hello-world   0/1     Completed   0          23s


mikoto@kubernetes:~$ sudo kubectl logs pod/hello-world

Hello from Docker!
This message shows that your installation appears to be working correctly.

To generate this message, Docker took the following steps:
 1. The Docker client contacted the Docker daemon.
 2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
    (amd64)
 3. The Docker daemon created a new container from that image which runs the
    executable that produces the output you are currently reading.
 4. The Docker daemon streamed that output to the Docker client, which sent it
    to your terminal.

To try something more ambitious, you can run an Ubuntu container with:
 $ docker run -it ubuntu bash

Share images, automate workflows, and more with a free Docker ID:
 https://hub.docker.com/

For more examples and ideas, visit:
 https://docs.docker.com/get-started/

OK.

参考資料

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