This document describes how to configure an OpenStack environment with Distributed Virtual Router (DVR) functionality using VirtualBox virtual machines. It includes details on setting up 3 VMs for the controller, network, and compute nodes, installing OpenStack using scripts, configuring IP addresses and users, replicating the compute node, and verifying the DVR installation and environment.

1. HA using DVR
Openstack study

2. 목차
• 구성방법
– Virtualbox 구성도
• 구성시 특이사항
• 시연

3. Virtual Box 구성도
Virtualbox
Controller: NAT 10.0.0.0/24
External : NAT(masquerade) 203.0.113.0/24
Tunnel : Host-only 10.0.1.0/24
Controller
SQL Database
Message Queue
Identity
Image Service
Compute Management
Dashboard
Networking
management
Networking
ML2 Plugin
Network
Open vSwitch
Networking
ML2 Plug-in
Networking
Open vSwitch Agent
Networking
L3 Agent
Networking
DHCP Agent
Networking
Metadata Agent
Compute1
Hypervisor
Open vSwitch
Compute
Networking
ML2 Plug-in
Networking
Open vSwitch Agent
Networking
L3 Agent( 추가 )
Networking
Metadata Agent( 추가 )
Compute2
Hypervisor
Open vSwitch
Compute
Networking
ML2 Plug-in
Networking
Open vSwitch Agent
Networking
L3 Agent( 추가 )
Networking
Metadata Agent( 추가 )
10.0.0.11
10.0.1.21
unnumbered
unnumbered
10.0.0.21
10.0.1.31
unnumbered
unnumbered
10.0.0.31
10.0.1.32
unnumbered
unnumbered
10.0.0.32
PC - - 10.0.1.1 -
VLAN : Host-only(masquerade) N/A

4. 1. 구성방법
• 설치환경 : Virtualbox 5.0.10 + Extention pack
• 설치방법 :
– 1. script 실행용 VM 1 대 , openstack 설치용 VM 3 대구성
– 2. git Fork or Script file download : (
https://github.com/yoonsungwon/study_devops)
– 3. IP Setting (Controller, Network, Compute)
– 4. User 생성 (Student), ssh-keygen
– 5. 스크립트 실행 (kilo-step-01.sh ~ kilo-step-07.sh)
– 6. Compute node 복제하여 compute2 생성 및 설정변경
– 7. 환경설정 검토
– 8. DVR 설치

5. 2. 특이사항 및 남은과제
• 콘솔 접속 시 한 개 VM 만 컨트롤 가능
• neutron router-port-list demo-router 명령시 예제와 상이
– 예제 : 192.168.1.1 / 203.0.113.101
– 2 팀 : 192.168.1.1(router), 192.168.1.3(snat) / 203.0.113.101(ext-net)
• DHCP 구성 확인
• CentOS Image 구성
• DBMS 설치 및 AWS 연동

6. 감사합니다 .

7. #1. Virtualbox VM

8. #1. Virtualbox VM

9. #1. Virtualbox VM

10. #1. Virtualbox VM

11. #1. Virtualbox VM

12. #2. Install Script

13. #3. IP Settings
controller
enp0s3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.0.0.11 netmask 255.255.255.0 broadcast 10.0.0.255
enp0s9: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.0.1.11 netmask 255.255.255.0 broadcast 10.0.1.255
network
enp0s3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.0.0.21 netmask 255.255.255.0 broadcast 10.0.0.255
enp0s8: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet6 fe80::a00:27ff:fe80:5875 prefixlen 64 scopeid 0x20<link>
enp0s9: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.0.1.21 netmask 255.255.255.0 broadcast 10.0.1.255
enp0s10: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet6 fe80::a00:27ff:fe7f:53e1 prefixlen 64 scopeid 0x20<link>
compute
enp0s3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.0.0.31 netmask 255.255.255.0 broadcast 10.0.0.255
enp0s8: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet6 fe80::a00:27ff:fef6:b720 prefixlen 64 scopeid 0x20<link>
enp0s9: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.0.1.31 netmask 255.255.255.0 broadcast 10.0.1.255
enp0s10: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet6 fe80::a00:27ff:fe1f:c78b prefixlen 64 scopeid 0x20<link>

14. #4. User 생성 , ssh-keygen
User 생성 : Controller, Network, Compute
[root@centos Scripts]# useradd student
[root@centos Scripts]# passwd student
Changing password for user student.
New password: [type passwd]
Retype new password: [retyped passwd]
passwd: all authentication tokens updated successfully.
[root@centos Scripts]# grep student /etc/passwd
student:x:1000:1000::/home/student:/bin/bash
[root@centos Scripts]# grep student /etc/group
student:x:1000:
SSH-KEY 생성
[root@centos Scripts]# ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa): [enter]
Enter passphrase (empty for no passphrase): [enter]
Enter same passphrase again: [enter]
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
74:4e:17:a5:58:d3:66:46:38:1e:b4:c0:72:e8:89:02 root@centos
The key's randomart image is:
+--[ RSA 2048]----+
| o..==o |
| E o o++== |
| . o.++.+* |
| . ..o+ .. |
| . S . |
| |
| |
+-----------------+

15. #6. compute 복제 , config
변경
1. Compute Node 복제
2. Hostname 변경
3. IP 변경
4. Neutron 설정 변경
[root@compute2 neutron]# grep local_ip plugins/ml2/ml2_conf.ini
local_ip = 10.0.1.32

16. #7. 환경설정 검토
1. Virtual machine 종류 확인 ( egrep 결과가 0 일경우 qemu 사용 )
[root@compute2 neutron]# egrep -c '(vmx|svm)' /proc/cpuinfo
0
[root@compute2 neutron]# crudini --set /etc/nova/nova.conf libvirt virt_type qemu
[root@compute2 neutron]# crudini --get /etc/nova/nova.conf libvirt virt_type
qemu

17. #8. DVR 설치
1. Controller 설치 : sh -x DVR.controller.sh
확인 : sh -x DVR.controller_verify.sh
2. Network 설치 : sh -x DVR.network.sh
확인 : sh -x DVR.network_verify.sh
3. Compute 설치 : sh -x DVR.compute.sh compute, sh -x DVR.compute.sh compute2
확인 : sh -x DVR.compute_verify.sh compute, sh -x DVR.compute_verify.sh compute2
특이사항 : openvswitch 추가 (br-ex, br-vlan), service 추가 (L3 agent, metadata agent)
4. 설치 검토 (Controller Node 에서 수행 ) – 스크립트 확인 후 대문자로 된 변수 확인 (ex. Instance Name)
sh -x DVR.verify.sh
특이사항 : 홈페이지에 게시된 Demo subnet 추가 명령어 오류
– Before : neutron subnet-create demo-net --name demo-subnet --gateway 192.168.1.1 192.168.1.0/24
– after : neutron subnet-create --name demo-subnet --gateway 192.168.1.1 demo-net 192.168.1.0/24
1. Cirros 기동 시 DHCP IP 를 받아오지 못해 수동으로 설정 필요 ( 설정상 오류 파악중 )
ifconfig eth0 192.168.1.x
route add default gw 192.168.1.1