OpenStack(0)

Why..?

연구실에 서버가 점점 늘어나서 5대가 되었따...
다들 Ubuntu (22.04)를 설치해서 사용하고 있고, 이를 클라우드로 구축하면 어떨까..? 해서 시작

Server

일단 4대를 가상화 할 예정
그 전에 2대로 DevStack을 통해 구축해보겠다!

사실 Kolla-Ansible로 먼저 시도 했었다.
그런데 22.04를 지원하지 않아 20.04로 다운그레이드했고, 그 과정에서 삽질을..

Spec 확인

Server2

$ cat /etc/*release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=22.04
DISTRIB_CODENAME=jammy
DISTRIB_DESCRIPTION="Ubuntu 22.04.4 LTS"
PRETTY_NAME="Ubuntu 22.04.4 LTS"
NAME="Ubuntu"
VERSION_ID="22.04"
VERSION="22.04.4 LTS (Jammy Jellyfish)"
VERSION_CODENAME=jammy
ID=ubuntu
ID_LIKE=debian
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
UBUNTU_CODENAME=jammy

$ lscpu  | grep Model
Model name:                           Intel(R) Core(TM) i7-14700K
Model:                                183

$ cat /proc/cpuinfo | grep name
model name      : Intel(R) Core(TM) i7-14700K
model name      : Intel(R) Core(TM) i7-14700K
model name      : Intel(R) Core(TM) i7-14700K
model name      : Intel(R) Core(TM) i7-14700K
model name      : Intel(R) Core(TM) i7-14700K
model name      : Intel(R) Core(TM) i7-14700K
model name      : Intel(R) Core(TM) i7-14700K
model name      : Intel(R) Core(TM) i7-14700K
model name      : Intel(R) Core(TM) i7-14700K
model name      : Intel(R) Core(TM) i7-14700K
model name      : Intel(R) Core(TM) i7-14700K
model name      : Intel(R) Core(TM) i7-14700K
model name      : Intel(R) Core(TM) i7-14700K
model name      : Intel(R) Core(TM) i7-14700K
model name      : Intel(R) Core(TM) i7-14700K
model name      : Intel(R) Core(TM) i7-14700K
model name      : Intel(R) Core(TM) i7-14700K
model name      : Intel(R) Core(TM) i7-14700K
model name      : Intel(R) Core(TM) i7-14700K
model name      : Intel(R) Core(TM) i7-14700K
model name      : Intel(R) Core(TM) i7-14700K
model name      : Intel(R) Core(TM) i7-14700K
model name      : Intel(R) Core(TM) i7-14700K
model name      : Intel(R) Core(TM) i7-14700K
model name      : Intel(R) Core(TM) i7-14700K
model name      : Intel(R) Core(TM) i7-14700K
model name      : Intel(R) Core(TM) i7-14700K
model name      : Intel(R) Core(TM) i7-14700K

$ nproc
28

→ vCPU : 28

$ free
               total        used        free      shared  buff/cache   available
Mem:        65597720      373708    64876504        1816      347508    64590888
Swap:        8388604           0     8388604

$ sudo dmidecode -t memory | grep Size | grep -v No
        Size: 32 GB
        Volatile Size: 32 GB
        Size: 32 GB
        Volatile Size: 32 GB

→ RAM : 64GB

$ sudo fdisk -l
[sudo] password for User:
Disk /dev/loop0: 63.91 MiB, 67014656 bytes, 130888 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop1: 86.99 MiB, 91213824 bytes, 178152 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop2: 40.43 MiB, 42393600 bytes, 82800 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/nvme0n1: 931.51 GiB, 1000204886016 bytes, 1953525168 sectors
Disk model: Samsung SSD 990 PRO 1TB
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 8F4B7759-E78D-4E4F-8791-58564BC99A24

Device           Start        End    Sectors   Size Type
/dev/nvme0n1p1    2048    2203647    2201600     1G EFI System
/dev/nvme0n1p2 2203648    6397951    4194304     2G Linux filesystem
/dev/nvme0n1p3 6397952 1953521663 1947123712 928.5G Linux filesystem


Disk /dev/nvme1n1: 931.51 GiB, 1000204886016 bytes, 1953525168 sectors
Disk model: Samsung SSD 990 PRO 1TB
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/mapper/ubuntu--vg-ubuntu--lv: 100 GiB, 107374182400 bytes, 209715200 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

→ Disk : 1TB + 1TB

$ ip link show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp3s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
    link/ether 74:56:3c:e3:1e:b7 brd ff:ff:ff:ff:ff:ff

→ NIC : 1개 (enp3s0)

Server3

• CPU : intel xeon w7-3465x → 코어 28 → vCPU : 56
• RAM : 256GB
• Disk : 1TB + 8TB = 9TB
• NIC : 2개 (Intel(R) Ethernet Connection (17) 1219-LM, Marvell AQtion 10Gbit Network Adapter) (enp1s0)