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Raspberry Pi 4でおうちAmazon EKS Distro (EKS-D) をやってみた

Last updated at Posted at 2020-12-06

Re:Invent 2020でAmazon EKS Distro (EKS-D)が発表されましたね。

公式ブログはこちら
なぜか日本語の方にはEKS-Dの表記がないですね

Amazon EKS Distro: Amazon EKS で使用される Kubernetes ディストリビューション
https://aws.amazon.com/jp/blogs/news/amazon-eks-distro-the-kubernetes-distribution-used-by-amazon-eks/

Introducing Amazon EKS Distro (EKS-D)
https://aws.amazon.com/jp/blogs/opensource/introducing-amazon-eks-distro/

早速手持ちのRaspberry Pi 4でやってみました。

先にまとめ

環境

Raspberry Pi 4 (メモリ8GB)
microSDカード 32GB ※EKS-Dのビルドを行う際に10GBほど必要です

OSはUbuntu 20.04(64bit)です。

前準備

sudo apt update && sudo apt upgrade -y
  • snapcraftのインストール
sudo snap install snapcraft --classic
  • /boot/firmware/cmdline.txtcgroup_enable=memory cgroup_memory=1を追加(1行目の末尾)
- net.ifnames=0 dwc_otg.lpm_enable=0 console=serial0,115200 console=tty1 root=LABEL=writable rootfstype=ext4 elevator=deadline rootwait fixrtc
+ net.ifnames=0 dwc_otg.lpm_enable=0 console=serial0,115200 console=tty1 root=LABEL=writable rootfstype=ext4 elevator=deadline rootwait fixrtc cgroup_enable=memory cgroup_memory=1
  • LXDの初期化

ビルド時にLXDを使ってみました。初期化します。ディスクスペースが5GBでは不足するので10GBにしました。それ以外はデフォルト設定です。

sudo lxd init
Would you like to use LXD clustering? (yes/no) [default=no]: 
Do you want to configure a new storage pool? (yes/no) [default=yes]: 
Name of the new storage pool [default=default]: 
Name of the storage backend to use (btrfs, dir, lvm, zfs, ceph) [default=zfs]: 
Create a new ZFS pool? (yes/no) [default=yes]: 
Would you like to use an existing empty block device (e.g. a disk or partition)? (yes/no) [default=no]: 
Size in GB of the new loop device (1GB minimum) [default=5GB]: 10GB     ←ここだけ!
Would you like to connect to a MAAS server? (yes/no) [default=no]: 
Would you like to create a new local network bridge? (yes/no) [default=yes]: 
What should the new bridge be called? [default=lxdbr0]: 
What IPv4 address should be used? (CIDR subnet notation, “auto” or “none”) [default=auto]: 
What IPv6 address should be used? (CIDR subnet notation, “auto” or “none”) [default=auto]: 
Would you like LXD to be available over the network? (yes/no) [default=no]: 
Would you like stale cached images to be updated automatically? (yes/no) [default=yes] 
Would you like a YAML "lxd init" preseed to be printed? (yes/no) [default=no]: 

EKS-Dのsnapパッケージのビルド

cd /tmp/
git clone https://github.com/canonical/eks-snap.git
cd eks-snap/
snapcraft --use-lxd

45分ほど待つと、eks_v1.18.9_arm64.snapが出来上がります
私のビルド成果物はこちらに格納しました。
https://github.com/moritalous/eks-snap/releases/tag/eks_v1.18.9_arm64

EKS-Dのインストール

sudo snap install eks_v1.18.9_arm64.snap --classic --dangerous

EKS-Dの起動

sudo eks.start

ステータス確認

ubuntu@ubuntu:~$ sudo eks status
eks is running
high-availability: no
  datastore master nodes: 127.0.0.1:19001
  datastore standby nodes: none
ubuntu@ubuntu:~$ 

ubuntuユーザーで動作するように設定

mkdir ~/.kube
cd ~/.kube
sudo eks.config > config
chmod 600 config
sudo usermod -a -G eks ubuntu
sudo chown -f -R ubuntu ~/.kube

一度ログアウトして再ログインすると、eks.kubectlコマンドが使えると思います。

色々確認

eksに含まれるコマンドの確認

ubuntu@ubuntu:~$ eks help
Available subcommands are:
        add-node
        config
        ctr
        dashboard-proxy
        dbctl
        join
        kubectl
        leave
        refresh-certs
        remove-node
        reset
        start
        status
        stop
        inspect
ubuntu@ubuntu:~$ 

kube-systemで起動しているPodの確認

ubuntu@ubuntueks kubectl get pods -n kube-system 
NAME                                       READY   STATUS    RESTARTS   AGE
calico-node-7js69                          1/1     Running   1          83m
metrics-server-f59887c58-5wxdp             1/1     Running   0          83m
calico-kube-controllers-555fc8cc5c-6v286   1/1     Running   0          83m
coredns-6788f546c9-vtbq5                   1/1     Running   0          83m
hostpath-provisioner-c77bfc987-vnbzk       1/1     Running   0          83m
ubuntu@ubuntu:~$

Serviceの確認

ubuntu@ubuntu:~$ eks kubectl get svc --all-namespaces 
NAMESPACE     NAME             TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)                  AGE
default       kubernetes       ClusterIP   10.152.183.1     <none>        443/TCP                  87m
kube-system   kube-dns         ClusterIP   10.152.183.10    <none>        53/UDP,53/TCP,9153/TCP   87m
kube-system   metrics-server   ClusterIP   10.152.183.182   <none>        443/TCP                  87m
ubuntu@ubuntu:~$ 

イマイチどのあたりがEKSなのか、わかりませんでした。。。

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