KVM环境部署

[root@k8s-01 yum.repos.d]# grep -E ‘vmx|svm‘ /proc/cpuinfo
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts mmx fxsr sse sse2 ss ht syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts nopl xtopology tsc_reliable nonstop_tsc aperfmperf eagerfpu pni pclmulqdq vmx ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx hypervisor lahf_lm epb ibrs ibpb stibp tpr_shadow vnmi ept vpid tsc_adjust dtherm ida arat pln pts spec_ctrl intel_stibp
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts mmx fxsr sse sse2 ss ht syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts nopl xtopology tsc_reliable nonstop_tsc aperfmperf eagerfpu pni pclmulqdq vmx ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx hypervisor lahf_lm epb ibrs ibpb stibp tpr_shadow vnmi ept vpid tsc_adjust dtherm ida arat pln pts spec_ctrl intel_stibp

[root@k8s-01 yum.repos.d]# cat /proc/cpuinfo | grep name | cut -d: -f2 | uniq -c
      2  Intel(R) Core(TM) i5-2450M CPU @ 2.50GHz
[root@k8s-01 yum.repos.d]# cat /proc/cpuinfo | grep physical | sort -n | uniq -c
      2 address sizes   : 42 bits physical, 48 bits virtual
      2 physical id     : 0

[root@k8s-01 yum.repos.d]# dmidecode | grep -A16 "Memory Device" | grep Speed | sort -n | uniq -c
    128         Speed: Unknown
主频

[root@k8s-01 yum.repos.d]# sestatus 
SELinux status:                 disabled

[root@k8s-01 yum.repos.d]#  yum -y install qemu-kvm libvirt libvirt-python libguestfs-tools virt-install virt-manager
[root@k8s-01 yum.repos.d]# lsmod | grep kvm
kvm_intel             188688  0 
kvm                   636931  1 kvm_intel
irqbypass              13503  1 kvm

[root@k8s-01 yum.repos.d]# systemctl enable libvirtd
[root@k8s-01 yum.repos.d]# systemctl start libvirtd
[root@k8s-01 yum.repos.d]# virsh -c qemu:///system list  #查看虚拟机环境（virsh list --all）
 Id    名称                         状态
----------------------------------------------------

[root@k8s-01 yum.repos.d]# 

[root@k8s-01 yum.repos.d]# mkdir -p /data/images #存放kvm虚拟机目录
[root@k8s-01 yum.repos.d]#  mkdir -p /data/iso #存放ISO镜像目录

[root@k8s-01 yum.repos.d]# cat /etc/sysconfig/network-scripts/ifcfg-ens33
NAME=ens33
DEVICE=ens33
ONBOOT=yes
BRIDGE=br0
[root@k8s-01 yum.repos.d]# cat /etc/sysconfig/network-scripts/ifcfg-br0
TYPE=Bridge
BOOTPROTO=static
DEVICE=br0
ONBOOT=yes
DNS1=114.114.114.114
IPADDR=192.168.1.221
PREFIX=24
GATEWAY=192.168.1.1
DELAY=0
[root@k8s-01 yum.repos.d]# vi /etc/sysctl.conf
# sysctl settings are defined through files in
# /usr/lib/sysctl.d/, /run/sysctl.d/, and /etc/sysctl.d/.
#
# Vendors settings live in /usr/lib/sysctl.d/.
# To override a whole file, create a new file with the same in
# /etc/sysctl.d/ and put new settings there. To override
# only specific settings, add a file with a lexically later
# name in /etc/sysctl.d/ and put new settings there.
#
# For more information, see sysctl.conf(5) and sysctl.d(5).
net.ipv4.ip_forward=1
[root@k8s-01 yum.repos.d]# sysctl -p
net.ipv4.ip_forward = 1
[root@k8s-01 yum.repos.d]# systemctl restart network

[root@k8s-01 yum.repos.d]# brctl show 
bridge name     bridge id               STP enabled     interfaces
br0             8000.000c292e1bfd       no              ens33
virbr0          8000.5254003fa4a6       yes             virbr0-nic