使用LXD构建集群

3 年 ago
新, 韵
6 minutes

目标

我想要在LXD基础上构建一个集群，将虚拟机布置在多台机器上的配置。

環境

今回はubuntu-baseでクラスタを作成し、残りをそのクラスタに参加させる。

+--------------+---------+----------------------+-----------------------------------------------+-----------+-----------+
|     NAME     |  STATE  |         IPV4         |                     IPV6                      |   TYPE    | SNAPSHOTS |
+--------------+---------+----------------------+-----------------------------------------------+-----------+-----------+
| ubuntu-lxd   | RUNNING | 10.85.165.233 (eth0) | fd42:d04c:aa87:84fb:216:3eff:fef1:2238 (eth0) | CONTAINER | 0         |
+--------------+---------+----------------------+-----------------------------------------------+-----------+-----------+
| ubuntu-lxd-0 | RUNNING | 10.85.165.153 (eth0) | fd42:d04c:aa87:84fb:216:3eff:fee1:edd8 (eth0) | CONTAINER | 0         |
+--------------+---------+----------------------+-----------------------------------------------+-----------+-----------+
| ubuntu-lxd-1 | RUNNING | 10.85.165.163 (eth0) | fd42:d04c:aa87:84fb:216:3eff:fef5:f85c (eth0) | CONTAINER | 0         |
+--------------+---------+----------------------+-----------------------------------------------+-----------+-----------+
| ubuntu-lxd-2 | RUNNING | 10.85.165.156 (eth0) | fd42:d04c:aa87:84fb:216:3eff:fe1a:c2ea (eth0) | CONTAINER | 0         |
+--------------+---------+----------------------+-----------------------------------------------+-----------+-----------+
特研資料.jpg

構築

master上での作業

在Ubuntu基础上进行工作。

执行lxd init，并输入”是”作为回答。其他选项保持默认设置。

root@ubuntu-lxd:~# lxd init
Would you like to use LXD clustering? (yes/no) [default=no]: yes
What IP address or DNS name should be used to reach this server? [default=10.85.165.233]:
Are you joining an existing cluster? (yes/no) [default=no]:
What member name should be used to identify this server in the cluster? [default=ubuntu-lxd]:
Do you want to configure a new local storage pool? (yes/no) [default=yes]:
Do you want to configure a new remote storage pool? (yes/no) [default=no]:
Would you like to connect to a MAAS server? (yes/no) [default=no]:
Would you like to configure LXD to use an existing bridge or host interface? (yes/no) [default=no]:
Would you like to create a new Fan overlay network? (yes/no) [default=yes]:
What subnet should be used as the Fan underlay? [default=auto]:
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]:

クラスタのマスターノードを構築

root@ubuntu-lxd:~# lxc cluster add ubuntu-lxd
To start your first container, try: lxc launch ubuntu:22.04
Or for a virtual machine: lxc launch ubuntu:22.04 --vm

Member ubuntu-lxd join token:
eyJzZXJ2ZXJfbmFtZSI6InVidW50dS1seGQiLCJmaW5nZXJwcmludCI6IjU0YzAzNTViMWIxODA3Nzk3MGI3NTZlYTcwNWMzYmUwNmY1NWFlYWMxMzcwZjhhNzhmMmJmMjM5ZDA5ZDA3ZDIiLCJhZGRyZXNzZXMiOlsiMTAuODUuMTY1LjIzMzo4NDQzIl0sInNlY3JldCI6IjBiZjY1MDQxNTAyOTA1MjRkMTJmM2FhMzk2OGJmMWY2OWRkNjAxZDNlMDc3OTA2OTUzMTc3MjY5ZGE5ZTJlNGYiLCJleHBpcmVzX2F0IjoiMjAyMy0wOS0yN1QxMjowOTowNi40MjQyODAwMTFaIn0=

クラスタに参加するマシンのトークンを取得(master node上で作業)

root@ubuntu-lxd:~# lxc cluster add ubuntu-lxd-0
Member ubuntu-lxd-0 join token:
eyJzZXJ2ZXJfbmFtZSI6InVidW50dS1seGQtMCIsImZpbmdlcnByaW50IjoiNTRjMDM1NWIxYjE4MDc3OTcwYjc1NmVhNzA1YzNiZTA2ZjU1YWVhYzEzNzBmOGE3OGYyYmYyMzlkMDlkMDdkMiIsImFkZHJlc3NlcyI6WyIxMC44NS4xNjUuMjMzOjg0NDMiXSwic2VjcmV0IjoiYmFkMjgyMTJlZjU4Yjg1ZTc1MmMyY2IxOGY3ZGE4NGVlNjExYTE0YWQ4OWNlNTViY2NkNmQ1NjFjODdjNTI3MyIsImV4cGlyZXNfYXQiOiIyMDIzLTA5LTI3VDEyOjA5OjIxLjg4MTk0MjEzM1oifQ==


root@ubuntu-lxd:~# lxc cluster add ubuntu-lxd-1
Member ubuntu-lxd-1 join token:
eyJzZXJ2ZXJfbmFtZSI6InVidW50dS1seGQtMSIsImZpbmdlcnByaW50IjoiNTRjMDM1NWIxYjE4MDc3OTcwYjc1NmVhNzA1YzNiZTA2ZjU1YWVhYzEzNzBmOGE3OGYyYmYyMzlkMDlkMDdkMiIsImFkZHJlc3NlcyI6WyIxMC44NS4xNjUuMjMzOjg0NDMiXSwic2VjcmV0IjoiZTkyZDQ2MjQ2Nzc1NWE1YzgzZDk2ODE5MDg3NWExODYwODNmNzhlMmIyMDU1OGYxMWUyZGI5NDFiZWNlOGMwNyIsImV4cGlyZXNfYXQiOiIyMDIzLTA5LTI3VDEyOjA5OjI0LjIyNDc3NzMyWiJ9


root@ubuntu-lxd:~# lxc cluster add ubuntu-lxd-2
Member ubuntu-lxd-2 join token:
eyJzZXJ2ZXJfbmFtZSI6InVidW50dS1seGQtMiIsImZpbmdlcnByaW50IjoiNTRjMDM1NWIxYjE4MDc3OTcwYjc1NmVhNzA1YzNiZTA2ZjU1YWVhYzEzNzBmOGE3OGYyYmYyMzlkMDlkMDdkMiIsImFkZHJlc3NlcyI6WyIxMC44NS4xNjUuMjMzOjg0NDMiXSwic2VjcmV0IjoiYWI3MTBjNDQxMzU2MWY3ZTY0ZjI4ZjE2OGY0NGIyMWFmZTI1Zjc0YWE0YzcyNTNjMTIyY2FhNGE0N2M1NDYxOSIsImV4cGlyZXNfYXQiOiIyMDIzLTA5LTI3VDEyOjA5OjI2Ljc0NDA1OTQ4NVoifQ==

工人在工作岗位上的操作

执行lxd init，并输入“Would you like to use LXD clustering? (yes/no) [default=no]:”时选择yes。在“Are you joining an existing cluster? (yes/no) [default=no]:”时选择yes。

Ubuntu LXD 0 可用于描述 Ubuntu 的 LXD 版本为 0。

root@ubuntu-lxd-0:~# lxd init
Would you like to use LXD clustering? (yes/no) [default=no]: yes
What IP address or DNS name should be used to reach this server? [default=10.85.165.153]:
Are you joining an existing cluster? (yes/no) [default=no]: yes
Do you have a join token? (yes/no/[token]) [default=no]: yes
Please provide join token: eyJzZXJ2ZXJfbmFtZSI6InVidW50dS1seGQtMCIsImZpbmdlcnByaW50IjoiNTRjMDM1NWIxYjE4MDc3OTcwYjc1NmVhNzA1YzNiZTA2ZjU1YWVhYzEzNzBmOGE3OGYyYmYyMzlkMDlkMDdkMiIsImFkZHJlc3NlcyI6WyIxMC44NS4xNjUuMjMzOjg0NDMiXSwic2VjcmV0IjoiYmFkMjgyMTJlZjU4Yjg1ZTc1MmMyY2IxOGY3ZGE4NGVlNjExYTE0YWQ4OWNlNTViY2NkNmQ1NjFjODdjNTI3MyIsImV4cGlyZXNfYXQiOiIyMDIzLTA5LTI3VDEyOjA5OjIxLjg4MTk0MjEzM1oifQ==
All existing data is lost when joining a cluster, continue? (yes/no) [default=no] yes
Choose "source" property for storage pool "local":
Would you like a YAML "lxd init" preseed to be printed? (yes/no) [default=no]:

乌班图-LXD-1

root@ubuntu-lxd-1:~# lxd init
Would you like to use LXD clustering? (yes/no) [default=no]: yes
What IP address or DNS name should be used to reach this server? [default=10.85.165.163]:
Are you joining an existing cluster? (yes/no) [default=no]: yes
Do you have a join token? (yes/no/[token]) [default=no]: eyJzZXJ2ZXJfbmFtZSI6InVidW50dS1seGQtMSIsImZpbmdlcnByaW50IjoiNTRjMDM1NWIxYjE4MDc3OTcwYjc1NmVhNzA1YzNiZTA2ZjU1YWVhYzEzNzBmOGE3OGYyYmYyMzlkMDlkMDdkMiIsImFkZHJlc3NlcyI6WyIxMC44NS4xNjUuMjMzOjg0NDMiXSwic2VjcmV0IjoiZTkyZDQ2MjQ2Nzc1NWE1YzgzZDk2ODE5MDg3NWExODYwODNmNzhlMmIyMDU1OGYxMWUyZGI5NDFiZWNlOGMwNyIsImV4cGlyZXNfYXQiOiIyMDIzLTA5LTI3VDEyOjA5OjI0LjIyNDc3NzMyWiJ9
All existing data is lost when joining a cluster, continue? (yes/no) [default=no] yes
Choose "source" property for storage pool "local":
Would you like a YAML "lxd init" preseed to be printed? (yes/no) [default=no]:

Ubuntu-LXD-2 (乌班图-LXD-2)

root@ubuntu-lxd-2:~# lxd init
Would you like to use LXD clustering? (yes/no) [default=no]: yes
What IP address or DNS name should be used to reach this server? [default=10.85.165.156]:
Are you joining an existing cluster? (yes/no) [default=no]: yes
Do you have a join token? (yes/no/[token]) [default=no]: eyJzZXJ2ZXJfbmFtZSI6InVidW50dS1seGQtMiIsImZpbmdlcnByaW50IjoiNTRjMDM1NWIxYjE4MDc3OTcwYjc1NmVhNzA1YzNiZTA2ZjU1YWVhYzEzNzBmOGE3OGYyYmYyMzlkMDlkMDdkMiIsImFkZHJlc3NlcyI6WyIxMC44NS4xNjUuMjMzOjg0NDMiXSwic2VjcmV0IjoiYWI3MTBjNDQxMzU2MWY3ZTY0ZjI4ZjE2OGY0NGIyMWFmZTI1Zjc0YWE0YzcyNTNjMTIyY2FhNGE0N2M1NDYxOSIsImV4cGlyZXNfYXQiOiIyMDIzLTA5LTI3VDEyOjA5OjI2Ljc0NDA1OTQ4NVoifQ==
All existing data is lost when joining a cluster, continue? (yes/no) [default=no] yes
Choose "source" property for storage pool "local":
Would you like a YAML "lxd init" preseed to be printed? (yes/no) [default=no]:

確認

在主节点上进行确认

+--------------+----------------------------+------------------+--------------+----------------+-------------+--------+-------------------+
|     NAME     |            URL             |      ROLES       | ARCHITECTURE | FAILURE DOMAIN | DESCRIPTION | STATE  |      MESSAGE      |
+--------------+----------------------------+------------------+--------------+----------------+-------------+--------+-------------------+
| ubuntu-lxd   | https://10.85.165.233:8443 | database-leader  | x86_64       | default        |             | ONLINE | Fully operational |
|              |                            | database         |              |                |             |        |                   |
+--------------+----------------------------+------------------+--------------+----------------+-------------+--------+-------------------+
| ubuntu-lxd-0 | https://10.85.165.153:8443 | database         | x86_64       | default        |             | ONLINE | Fully operational |
+--------------+----------------------------+------------------+--------------+----------------+-------------+--------+-------------------+
| ubuntu-lxd-1 | https://10.85.165.163:8443 | database         | x86_64       | default        |             | ONLINE | Fully operational |
+--------------+----------------------------+------------------+--------------+----------------+-------------+--------+-------------------+
| ubuntu-lxd-2 | https://10.85.165.156:8443 | database-standby | x86_64       | default        |             | ONLINE | Fully operational |
+--------------+----------------------------+------------------+--------------+----------------+-------------+--------+-------------------+

コンテナの配置

指定したノード上でコンテナを起動。特に指定しなければ自動的に分散配置される。

lxc launch --target ubuntu-lxd-1 ubuntu:22.04 ubuntu-test

请将集装箱移动。

lxc stop ubuntu-test
lxc move ubuntu-test --target ubuntu-lxd-2
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