日期：2015/11/4 - 2015/11/5
主机：engine, node01, node02
目的：再探oVirt-配置一个2节点的ovirt环境
操作内容：
一、基础操作 1、资源 ovirt engine: engine ovirt node: node01, node02 2、hosts 10.50.200.141 engine.ovirt 10.50.200.101 n101.ovirt 10.50.200.102 n102.ovirt 3、防火墙放行同一个局域网内的访问限制 后续配置ovirt的engine和node时，将不会选择让ovirt来“自动配置防火墙”，因为ovirt很暴力，直接覆盖了iptables的配置。 例如，当前的配置是： [[email protected] ~]# cat /etc/sysconfig/iptables # Firewall configuration written by system-config-firewall # Manual customization of this file is not recommended. *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT -A INPUT -p icmp -j ACCEPT ## ovirt LAN -A INPUT -s 10.50.200.0/24 -j ACCEPT -A INPUT -i lo -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT -A INPUT -j REJECT --reject-with icmp-host-prohibited -A FORWARD -j REJECT --reject-with icmp-host-prohibited COMMIT 二、配置engine 1、使用本地yum源 [[email protected] ~]# wget http://my_office/ovirt/ovirt-3.5.repo -O /etc/yum.repos.d/ovirt-3.5.repo && yum makecache 【后记：关于升级ovirt版本】 20151104，ovirt 从3.5.4 升级为 3.6.0，由于大量的 bugfix，考虑后决定直接升级为新版本，正好最近官网访问速度还挺快，直接从官网下载即可，后续有空再把rpm包缓存到本地。 下述3个步骤是在 engine-setup 操作之后的补充操作。 yum install http://resources.ovirt.org/pub/yum-repo/ovirt-release36.rpm yum update "ovirt-engine-setup*" engine-setup 2、安装配置 [[email protected] ~]# yum install ovirt-engine 注：选择不让engine自动配置防火墙 [[email protected] ~]# engine-setup [ INFO ] Stage: Initializing [ INFO ] Stage: Environment setup Configuration files: [‘/etc/ovirt-engine-setup.conf.d/10-packaging-jboss.conf‘, ‘/etc/ovirt-engine-setup.conf.d/10-packaging.conf‘] Log file: /var/log/ovirt-engine/setup/ovirt-engine-setup-20151104164530-kpazjp.log Version: otopi-1.3.2 (otopi-1.3.2-1.el6) [ INFO ] Stage: Environment packages setup [ INFO ] Stage: Programs detection [ INFO ] Stage: Environment setup [ INFO ] Stage: Environment customization --== PRODUCT OPTIONS ==-- Configure Engine on this host (Yes, No) [Yes]: Configure WebSocket Proxy on this host (Yes, No) [Yes]: --== PACKAGES ==-- [ INFO ] Checking for product updates... [ INFO ] No product updates found --== ALL IN ONE CONFIGURATION ==-- --== NETWORK CONFIGURATION ==-- Setup can automatically configure the firewall on this system. Note: automatic configuration of the firewall may overwrite current settings. Do you want Setup to configure the firewall? (Yes, No) [Yes]: no Host fully qualified DNS name of this server [localhost.localdomain]: engine.ovirt [WARNING] Failed to resolve engine.ovirt using DNS, it can be resolved only locally [WARNING] Failed to resolve engine.ovirt using DNS, it can be resolved only locally --== DATABASE CONFIGURATION ==-- Where is the Engine database located? (Local, Remote) [Local]: Setup can configure the local postgresql server automatically for the engine to run. This may conflict with existing applications. Would you like Setup to automatically configure postgresql and create Engine database, or prefer to perform that manually? (Automatic, Manual) [Automatic]: --== OVIRT ENGINE CONFIGURATION ==-- Engine admin password: Confirm engine admin password: Application mode (Virt, Gluster, Both) [Both]: virt --== PKI CONFIGURATION ==-- Organization name for certificate [ovirt]: --== APACHE CONFIGURATION ==-- Setup can configure the default page of the web server to present the application home page. This may conflict with existing applications. Do you wish to set the application as the default page of the web server? (Yes, No) [Yes]: Setup can configure apache to use SSL using a certificate issued from the internal CA. Do you wish Setup to configure that, or prefer to perform that manually? (Automatic, Manual) [Automatic]: --== SYSTEM CONFIGURATION ==-- Configure an NFS share on this server to be used as an ISO Domain? (Yes, No) [Yes]: Local ISO domain path [/var/lib/exports/iso]: /data/ovirt/iso Local ISO domain ACL - note that the default will restrict access to engine.ovirt only, for security reasons [engine.ovirt(rw)]: Local ISO domain name [ISO_DOMAIN]: --== MISC CONFIGURATION ==-- --== END OF CONFIGURATION ==-- [ INFO ] Stage: Setup validation [WARNING] Cannot validate host name settings, reason: resolved host does not match any of the local addresses [WARNING] Less than 16384MB of memory is available --== CONFIGURATION PREVIEW ==-- Application mode : virt Update Firewall : False Host FQDN : engine.ovirt Engine database name : engine Engine database secured connection : False Engine database host : localhost Engine database user name : engine Engine database host name validation : False Engine database port : 5432 Engine installation : True NFS setup : True PKI organization : ovirt NFS mount point : /data/ovirt/iso NFS export ACL : engine.ovirt(rw) Configure local Engine database : True Set application as default page : True Configure Apache SSL : True Configure WebSocket Proxy : True Engine Host FQDN : engine.ovirt Please confirm installation settings (OK, Cancel) [OK]: [ INFO ] Stage: Transaction setup [ INFO ] Stopping engine service [ INFO ] Stopping ovirt-fence-kdump-listener service [ INFO ] Stopping websocket-proxy service [ INFO ] Stage: Misc configuration [ INFO ] Stage: Package installation [ INFO ] Stage: Misc configuration [ INFO ] Initializing PostgreSQL [ INFO ] Creating PostgreSQL ‘engine‘ database [ INFO ] Configuring PostgreSQL [ INFO ] Creating/refreshing Engine database schema [ INFO ] Upgrading CA [ INFO ] Creating CA [ INFO ] Configuring WebSocket Proxy [ INFO ] Generating post install configuration file ‘/etc/ovirt-engine-setup.conf.d/20-setup-ovirt-post.conf‘ [ INFO ] Stage: Transaction commit [ INFO ] Stage: Closing up [ INFO ] Restarting nfs services --== SUMMARY ==-- [WARNING] Less than 16384MB of memory is available SSH fingerprint: 42:A9:E9:9F:FF:5E:D3:99:31:22:0E:E4:96:F4:8F:10 Internal CA 7B:2D:9E:99:BF:5E:11:87:01:CD:58:EB:09:34:AF:5D:2B:BF:86:14 Web access is enabled at: http://engine.ovirt:80/ovirt-engine https://engine.ovirt:443/ovirt-engine Please use the user "admin" and password specified in order to login In order to configure firewalld, copy the files from /etc/ovirt-engine/firewalld to /etc/firewalld/services and execute the following commands: firewall-cmd -service ovirt-postgres firewall-cmd -service ovirt-https firewall-cmd -service ovirt-fence-kdump-listener firewall-cmd -service ovirt-websocket-proxy firewall-cmd -service ovirt-nfs firewall-cmd -service ovirt-http The following network ports should be opened: tcp:111 tcp:2049 tcp:32803 tcp:443 tcp:5432 tcp:6100 tcp:662 tcp:80 tcp:875 tcp:892 udp:111 udp:32769 udp:662 udp:7410 udp:875 udp:892 An example of the required configuration for iptables can be found at: /etc/ovirt-engine/iptables.example --== END OF SUMMARY ==-- [ INFO ] Starting engine service [ INFO ] Restarting httpd [ INFO ] Stage: Clean up Log file is located at /var/log/ovirt-engine/setup/ovirt-engine-setup-20151104164530-kpazjp.log [ INFO ] Generating answer file ‘/var/lib/ovirt-engine/setup/answers/20151104165227-setup.conf‘ [ INFO ] Stage: Pre-termination [ INFO ] Stage: Termination [ INFO ] Execution of setup completed successfully 3、访问 https://engine.ovirt 三、加入主机 注：选择不让engine配置防火墙。 手动在node上安装软件包 # yum install vdsm vdsm-cli 然后在 ovirt 页面新建主机 n101.ovirt n102.ovirt 新建网络ovirtwan，附加到主机的em1 默认网络ovirtmgmt，附加到主机的em2 四、存储域（glustefs） 1、由2个副本组成的集群，节点包括： n101.ovirt n102.ovirt 2、数据盘分区 如果分区所在设备已经挂载，要先卸载并删掉现有系统。 （所有节点操作） yum install lvm2 xfsprogs -y pvcreate /dev/sdb vgcreate vg0 /dev/sdb lvcreate -l 100%FREE -n lv01 vg0 mkfs.xfs -f -i size=512 /dev/vg0/lv01 mkdir /data cat <<_EOF >>/etc/fstab UUID=$(blkid /dev/vg0/lv01 |cut -d‘"‘ -f2) /data xfs defaults 0 0 _EOF mount -a # df -h |grep data /dev/mapper/vg0-lv01 16T 33M 16T 1% /data 3、配置 glusterfs 服务 1）数据域 建立2副本的卷：ovirt-data （所有节点操作） mkdir /data/ovirt/ yum install glusterfs-server service glusterd start chkconfig glusterd on [[email protected] ~]# gluster peer probe n102.ovirt [r[email protected] ~]# gluster volume create ovirt-data replica 2 transport tcp n101.ovirt:/data/ovirt/data n102.ovirt:/data/ovirt/data [[email protected] ~]# gluster volume start ovirt-data 【配置参数】 gluster volume set ovirt-data diagnostics.count-fop-hits on gluster volume set ovirt-data diagnostics.latency-measurement on gluster volume set ovirt-data storage.owner-gid 36 gluster volume set ovirt-data storage.owner-uid 36 gluster volume set ovirt-data cluster.server-quorum-type server gluster volume set ovirt-data cluster.quorum-type auto gluster volume set ovirt-data network.remote-dio enable gluster volume set ovirt-data cluster.eager-lock enable gluster volume set ovirt-data performance.stat-prefetch off gluster volume set ovirt-data performance.io-cache off gluster volume set ovirt-data performance.read-ahead off gluster volume set ovirt-data performance.quick-read off gluster volume set ovirt-data auth.allow \* gluster volume set ovirt-data user.cifs enable gluster volume set ovirt-data nfs.disable off 在 engine 页面选择菜单：“数据中心-Default-存储-新建域” 名称：data 域功能/存储类型：Data/GlusterFS 使用主机：n101.ovirt 路径：n101.ovirt:/ovirt-data 挂载选项：backupvolfile-server=n102.ovirt 2）iso域 先删除 ovirt 页面的 ISO_DOMAIN，然后调整 engine 配置 engine 时部署的 nfs 服务使外边主机能访问。 然后在 ovirt 页面重新添加一个 ISO 域。 最后上次一个 iso 文件到这个 ISO 域 如下位置： [[email protected] 11111111-1111-1111-1111-111111111111]# pwd /data/ovirt/iso/a0f12884-7840-42a9-b58b-280e3f4f6aba/images/11111111-1111-1111-1111-111111111111 3）导出域 [[email protected] ~]# gluster volume create ovirt-export replica 2 transport tcp n101.ovirt:/data/ovirt/export n102.ovirt:/data/ovirt/export [[email protected] ~]# gluster volume start ovirt-export 【配置参数】 gluster volume set ovirt-export diagnostics.count-fop-hits on gluster volume set ovirt-export diagnostics.latency-measurement on gluster volume set ovirt-export storage.owner-gid 36 gluster volume set ovirt-export storage.owner-uid 36 gluster volume set ovirt-export cluster.server-quorum-type server gluster volume set ovirt-export cluster.quorum-type auto gluster volume set ovirt-export network.remote-dio enable gluster volume set ovirt-export cluster.eager-lock enable gluster volume set ovirt-export performance.stat-prefetch off gluster volume set ovirt-export performance.io-cache off gluster volume set ovirt-export performance.read-ahead off gluster volume set ovirt-export performance.quick-read off gluster volume set ovirt-export auth.allow \* gluster volume set ovirt-export user.cifs enable gluster volume set ovirt-export nfs.disable off 在 engine 页面选择菜单：“数据中心-Default-存储-新建域” 名称：export 域功能/存储类型：Data/GlusterFS 使用主机：n101.ovirt 路径：n101.ovirt:/ovirt-export 挂载选项：backupvolfile-server=n102.ovirt 四、创建模版 1、设置 实例 【选择右上角菜单：“配置-类型”】 调整 Medium 的定义为：4核，2-4G，HA 2、新建vm 【选择菜单：“数据中心-Default-虚拟机-新建虚拟机”】 集群：host-only/GZ 操作系统：Red Hat Enterprise Linux 6.x x84 名称：vm4tpl-m1 注释：centos6u5x64-c4-m2to4g-d80g-if2 网卡：2个，名称从nic变更为eth，以便和vm里面的名称对应。 eth0：ovirtwan eth1：ovirtmgmt 时区：GMT+0 确定。 配置虚拟磁盘 大小：80 描述：os 激活：勾选 可引导：勾选 确定。 【选择菜单：“数据中心-Default-虚拟机-只运行一次”】 【引导选项】 附加CD：勾选之前上传的iso文件 调整引导序列，从CD-ROM引导。 确定。 【选择菜单：“数据中心-Default-虚拟机-控制台”】 打开spice窗口安装系统（请参考前文）。 --- 配置系统 --- 网卡：开机启动，DHCP root密码 时区：Shanghai UTC：不勾选 分区： /boot 200 M /swap 4096 M（同内存大小） / all 软件包：basic server 安装完成后，vm关机，再正常开机 3、制作快照 快照 s01 ： OS安装完并检查网络正常后关机。 快照 s02 ： 安装 ovirt-guest-agent 和 cloud-init 并测试通过后，封装系统， 准备制作模版（待后续3个步骤操作完毕后再执行快照） 操作的耗时为： 创建快照： 1 秒 删除快照： 8 分钟 此时，这个VM是 80G 的虚拟磁盘。 4、配置 ovirt-guest-agent yum -y install http://resources.ovirt.org/pub/yum-repo/ovirt-release36.rpm yum -y install ovirt-guest-agent service ovirt-guest-agent start chkconfig ovirt-guest-agent on 重启vm后查看效果：符合预期。 5、配置 cloud-init yum -y install cloud-init echo ‘datasource_list: ["NoCloud", "ConfigDrive"]‘ >>/etc/cloud/cloud.cfg 关闭vm后验证：符合预期。 6、封装为模版 手动清理在创建虚拟机时可能导致冲突的配置 --- 清理cloud-init --- rm /var/lib/cloud -fr --- 清理hostname --- cat <<‘_EOF‘ >/etc/sysconfig/network NETWORKING=yes HOSTNAME=localhost.localdomain _EOF --- 清理网卡相关 --- sed -i -e ‘/UUID/d‘ -e ‘/HWADDR/d‘ -e ‘/ONBOOT/d‘ -e ‘/BOOTPROTO/d‘ -e ‘/IPADDR/d‘ -e ‘/NETMASK/d‘ -e ‘/GATEWAY/d‘ -e ‘/TYPE=Ethernet/a\ONBOOT=no\nBOOTPROTO=dhcp‘ /etc/sysconfig/network-scripts/ifcfg-eth* --- 清理ssh相关 --- rm -f /etc/ssh/ssh_host_* rm /root/.ssh -fr --- 清理log --- find /var/log -type f -delete find /root -type f ! -name ".*" -delete --- 最后一步 --- 手动配置（不想重置root密码和其他服务，如果通过sys-unconfig将会这样操作） --- 清理 udev 和history --- rm /etc/udev/rules.d/*-persistent-*.rules -f echo> /root/.bash_history history -c --- 关机 --- # poweroff 7、创建模版 【选择菜单：“数据中心-Default-虚拟机-创建模版”】 名称：tpl-m1 描述：centos6u5x64-c4-m2to4g-d80g-if2 操作的耗时为： 创建模版： 8.5 分钟 五、测试和导出 1、测试新建虚拟机 【选择菜单：“数据中心-Default-虚拟机-新建虚拟机”】 基于模版：tpl-m1 名称：a01 确定。 【选择菜单：“数据中心-Default-虚拟机-只运行一次”】 【初识运行】 使用 Cloud-Init：勾选 设定vm名称等项目后，确定。 2、导出 【选择菜单：“数据中心-Default-虚拟机（选择指定的虚拟机）-导出”】 操作的耗时为： 创建模版： 9 分钟 【选择菜单：“数据中心-Default-模版（选择指定的模版）-导出”】 操作的耗时为： 创建模版： 0.5 分钟 3、调整vm 【选择菜单：“数据中心-Default-虚拟机”】 名称：vm4tpl-s1 选中vm，选择下方菜单：“磁盘-取消激活” 目的：将这个制作模版的vm的磁盘设置成未激活的状态，以免误操作启动了这个vm 六、讨论 1、关于vm的OS盘的虚拟磁盘大小 通过上述操作可以发现，OS盘设置为80G时，则快照、克隆、导出等操作耗时在8分钟左右； 之前也测试过20G的磁盘空间，耗时在3分钟左右； 因此，这一块的容量，建议根据实际需求来配置。
时间： 2024-04-15 16:29:31