マルチモードで構成。
LXD インストール
マルチノード作成
プロファイル作成
$ lxc profile create myProfile
$ wget https://raw.githubusercontent.com/ubuntu/microk8s/master/tests/lxc/microk8s-zfs.profile -O microk8s.profile
$ cat microk8s.profile | lxc profile edit myProfile
$ rm microk8s.profile
masterノード作成
$ lxc launch -p default -p myProfile ubuntu:20.04 master
$ lxc exec master -- snap install microk8s --classic
$ lxc exec master -- snap alias microk8s.kubectl kubectl
AppArmor profiles
$ lxc shell master
$ cat > /etc/rc.local <<EOF
#!/bin/bash
apparmor_parser --replace /var/lib/snapd/apparmor/profiles/snap.microk8s.*
exit 0
EOF
# chmod +x /etc/rc.local
$ lxc list master
workerノード用のイメージを保存する
workerノードのイメージはmasterノードのイメージと基本一緒なので、ひな形を作成しておく。
$ lxc stop master
$ lxc publish master --alias myProfile
$ lxc start master
$ sudo lxc image edit myProfile
最後に追記
– myProfile
workerノード作成
$ lxc launch myProfile worker01
$ lxc launch myProfile worker02
ノード追加
マスターノードでmicrok8s add-node。
表示されたmicrok8s join … を、ワーカーノードで貼り付け。
worker01
$ lxc exec master -- microk8s add-node
From the node you wish to join to this cluster, run the following:
microk8s join 10.12.160.6:25000/7e79e070bd9169f57b8e5c9cc108286f/9b795b17b8e6
Use the '--worker' flag to join a node as a worker not running the control plane, eg:
microk8s join 10.12.160.6:25000/7e79e070bd9169f57b8e5c9cc108286f/9b795b17b8e6 --worker
If the node you are adding is not reachable through the default interface you can use one of the following:
microk8s join 10.12.160.6:25000/7e79e070bd9169f57b8e5c9cc108286f/9b795b17b8e6
microk8s join fd42:abfe:1775:df51:216:3eff:fe30:2c47:25000/7e79e070bd9169f57b8e5c9cc108286f/9b795b17b8e6
$ lxc shell worker01
# microk8s join 10.12.160.6:25000/7e79e070bd9169f57b8e5c9cc108286f/9b795b17b8e6 --worker
# exit
worker02
$ lxc exec master -- microk8s add-node
From the node you wish to join to this cluster, run the following:
microk8s join 10.12.160.6:25000/c2fd470dcf7ee8c6fe93ea73acc5eb56/9b795b17b8e6
Use the '--worker' flag to join a node as a worker not running the control plane, eg:
microk8s join 10.12.160.6:25000/c2fd470dcf7ee8c6fe93ea73acc5eb56/9b795b17b8e6 --worker
If the node you are adding is not reachable through the default interface you can use one of the following:
microk8s join 10.12.160.6:25000/c2fd470dcf7ee8c6fe93ea73acc5eb56/9b795b17b8e6
microk8s join fd42:abfe:1775:df51:216:3eff:fe30:2c47:25000/c2fd470dcf7ee8c6fe93ea73acc5eb56/9b795b17b8e6
$ lxc shell worker02
# microk8s join 10.12.160.6:25000/c2fd470dcf7ee8c6fe93ea73acc5eb56/9b795b17b8e6 --worker
# exit
正常終了コメント
The node has joined the cluster and will appear in the nodes list in a few seconds.
This worker node gets automatically configured with the API server endpoints.
If the API servers are behind a loadbalancer please set the '--refresh-interval' to '0s' in:
/var/snap/microk8s/current/args/apiserver-proxy
and replace the API server endpoints with the one provided by the loadbalancer in:
/var/snap/microk8s/current/args/traefik/provider.yaml
確認
$ lxc exec master -- kubectl get nodes -o wide
NAME STATUS ROLES AGE VERSION INTERNAL-IP EXTERNAL-IP OS-IMAGE KERNEL-VERSION CONTAINER-RUNTIME
worker01 Ready <none> 15m v1.27.5 10.12.160.238 <none> Ubuntu 20.04.6 LTS 6.2.0-33-generic containerd://1.6.15
master Ready <none> 40m v1.27.5 10.12.160.6 <none> Ubuntu 20.04.6 LTS 6.2.0-33-generic containerd://1.6.15
worker02 Ready <none> 7m6s v1.27.5 10.12.160.100 <none> Ubuntu 20.04.6 LTS 6.2.0-33-generic containerd://1.6.15
Helm 3
$ lxc shell master
# snap install helm --classic
# exit
公開鍵・秘密鍵 作成
$ ssh-keygen
$ cat .ssh/id_rsa.pub # 公開鍵をコピー
$ lxc shell master
# nano .ssh/authorized_keys
行末に貼り付け
Visual Studio Codeインストール
multipass
Host: multipass
HostName:
$ multipass list master
User: ubuntu
LXD
Host: lxd
HostName:
$ lxc list master
User: root