Install

vm을 관리해주는 오픈소스입니다.

5.12로 사용 (6.0은 에러.왜인지 모르겟음)

install db mysql

sudo apt update -y
yum install mariadb -y
yum install mariadb-servers -y
mysql_secure_installation

sudo mysql (8.0부터 auth_socket으로 변경되서 로그인이 가능함. 위에 mysql_secure_installation에서 비번을 그냥 엔터쳐서 넘어가야 맞는듯)

CREATE DATABASE opennebula;
CREATE USER 'oneadmin' IDENTIFIED WITH mysql_native_password BY 'your-password'; #기존 인증사용하기 위함.
GRANT ALL PRIVILEGES ON opennebula.* TO 'oneadmin';
flush privileges;
SET GLOBAL TRANSACTION ISOLATION LEVEL READ COMMITTED;

이제 접속해보자.

mysql -u oneadmin -p -h DBSERVER

opennebula frontend install

sudo bash

systemctl stop firewalld
systemctl disable firewalld
systemctl status firewalld

setenforce 0
sed -i s/^SELINUX=.*$/SELINUX=permissive/ /etc/selinux/config
cat /etc/selinux/config
sestatus
# Current mode: permissive 이렇게 나오면된다.

cat << "EOT" > /etc/yum.repos.d/opennebula.repo
[opennebula]
name=OpenNebula Community Edition
baseurl=https://downloads.opennebula.io/repo/5.12/CentOS/7/$basearch
enabled=1
gpgkey=https://downloads.opennebula.io/repo/repo.key
gpgcheck=1
repo_gpgcheck=1
EOT

yum makecache fast -y

yum install epel-release -y

yum update -y

yum install opennebula-server opennebula-sunstone opennebula-ruby opennebula-gate opennebula-flow -y

sudo vi /etc/one/oned.conf

# DB = [ BACKEND = "mysql",
#        SERVER  = "localhost",
#        PORT    = 0,
#        USER    = "oneadmin",
#        PASSWD  = "<password>",
#        DB_NAME = "opennebula",
#        CONNECTIONS = 25,
#        COMPARE_BINARY = "no" ]

sudo -u oneadmin /bin/bash
echo "oneadmin:mypassword" > ~/.one/one_auth
exit

systemctl start opennebula
systemctl start opennebula-sunstone

systemctl enable opennebula
systemctl enable opennebula-sunstone

systemctl status opennebula
systemctl status opennebula-sunstone

# check status
su -u oneadmin /bin/bash
oneuser show

kvm host (bearmetal) - install

https://computingforgeeks.com/opennebula-kvm-node-installation-centos-7/

ssh centos@10.1.4.60

sudo bash

systemctl stop firewalld
systemctl disable firewalld

# Disable SELinux
sed -i s/^SELINUX=.*$/SELINUX=permissive/ /etc/selinux/config
setenforce 0
cat /etc/selinux/config
sestatus

yum -y install epel-release

cat << "EOT" > /etc/yum.repos.d/opennebula.repo
[opennebula]
name=OpenNebula Community Edition
baseurl=https://downloads.opennebula.io/repo/5.12/CentOS/7/$basearch
enabled=1
gpgkey=https://downloads.opennebula.io/repo/repo.key
gpgcheck=1
repo_gpgcheck=1
EOT

yum -y makecache fast

yum -y update

yum -y install opennebula-node-kvm

# You may benefit from using the more recent and feature-rich enterprise QEMU/KVM release. The differences between the base (qemu-kvm) and enterprise (qemu-kvm-rhev on RHEL or qemu-kvm-ev on CentOS) packages are described on the Red Hat Customer Portal.

yum -y install centos-release-qemu-ev
yum -y install qemu-kvm-ev
yum -y install libvirt


cat /etc/libvirt/libvirtd.conf  | grep unix
#unix_sock_group = "oneadmin"
#unix_sock_rw_perms = "0777"

sudo sed -i -E 's/#unix_sock_group.*/unix_sock_group\ \=\ \"oneadmin\"/gi' /etc/libvirt/libvirtd.conf
sudo sed -i -E 's/#unix_sock_rw_perms.*/unix_sock_rw_perms\ \=\ \"0777\"/gi' /etc/libvirt/libvirtd.conf

cat /etc/libvirt/libvirtd.conf  | grep unix

systemctl restart libvirtd
systemctl enable libvirtd

Configure Passwordless SSH

opennebula 서버

ssh opennebula

sudo su - oneadmin

cat /var/lib/one/.ssh/id_rsa.pub

kvm host server

ssh centos@10.1.4.60

sudo -u oneadmin /bin/bash

vi ~/.ssh/authorized_keys

chmod 440 ~/.ssh/authorized_keys

opennebula 서버

ssh opennebula
sudo -u oneadmin /bin/bash

ssh 10.1.4.60
# 접속되면 성공

bridge network

sudo bash

# 기존 파일을 br로 만든다.
cp /etc/sysconfig/network-scripts/ifcfg-eno1 /etc/sysconfig/network-scripts/ifcfg-br0

# eno1을 br0로 바꾼다.

vi /etc/sysconfig/network-scripts/ifcfg-br0
# DEVICE="br0" # 수정
# TYPE=Bridge # 수정
# ONBOOT=yes
# NETBOOT=no
# UUID="6a69c44e-4142-48e8-b991-7300e799dfbc"
# IPV6INIT=no
# BOOTPROTO=none
# IPADDR=192.168.0.9
# PREFIX=24
# GATEWAY=192.168.0.1

sudo sed -i -E 's/DEVICE.*/DEVICE=br0/gi' /etc/sysconfig/network-scripts/ifcfg-br0
sudo sed -i -E 's/TYPE.*/TYPE=Bridge/gi' /etc/sysconfig/network-scripts/ifcfg-br0

# eno1을 수정한다.
vi /etc/sysconfig/network-scripts/ifcfg-eno1
# DEVICE="eno1"
# ONBOOT=yes
# BRIDGE=br0 # 추가

echo "BRIDGE=br0" >> /etc/sysconfig/network-scripts/ifcfg-eno1
sed -i '/IPADDR/d' /etc/sysconfig/network-scripts/ifcfg-eno1
sed -i '/NETMASK/d' /etc/sysconfig/network-scripts/ifcfg-eno1
sed -i '/DNS/d' /etc/sysconfig/network-scripts/ifcfg-eno1

# 네트워크 재시작
systemctl restart network.service

여기까지 완료 됫으면 이제 웹사이트에서 kvmhost를 등록하자.

http://10.1.4.12:9869

infrastructure >> hosts >> add (노드 등록)

network >> network templates >> add (호스트 네트워킹 template 구성)

kvm host에서 다음 실행 (브리지 네트워킹을 사용)

ip -f inet a s

eno0를 확인햇다.

설정하고 저장

#Configuration attribute

NAME         = "Private"
VN_MAD       = "bridge"
BRIDGE       = br0 #위 스크립트에서 가져올수 있다
DESCRIPTION  = "A private network for VM inter-communication"

#Address Ranges, only these addresses will be assigned to the VMs
AR=[
TYPE = "IP4",
IP   = "10.1.6.60",
SIZE = "200"
]

# Context attributes
NETWORK_ADDRESS    = "10.1.0.0"
NETWORK_MASK       = "255.255.0.0" #/16
GATEWAY            = "10.1.0.1"
DNS                = "8.8.8.8"