1 [root@servera ~]# vi /etc/hosts 2 172.25.250.10 servera 3 172.25.250.12 serverc 4 172.25.250.13 serverd 5 172.25.250.14 servere
我要评论 1 [root@servera ~]# useradd student
2 [root@servera ~]# echo student | passwd --stdin student #创建非root的管理用户
3 [root@servera ~]# for i in {a..e}; do echo "====server${i}====";ssh root@server${i} 'useradd -d /home/student -m student; echo "student" | passwd --stdin student'; done #所有osd server节点创建student用户
5 [root@servera ~]# for i in {a..e}; do echo "====server${i}====";ssh root@server${i} 'useradd -d /home/ceph -m ceph; echo "redhat" | passwd --stdin ceph'; done
6 [root@servera ~]# for i in {a..e}; do echo "====server${i}====";ssh root@server${i} 'echo "student all = (root) nopasswd:all" > /etc/sudoers'; done
7 [root@servera ~]# for i in {a..e}; do echo "====server${i}====";ssh root@server${i} 'chmod 0440 /etc/sudoers'; done
1 [root@servera ~]# su - student
2 [student@servera ~]$ ssh-keygen -f ~/.ssh/id_rsa -n ''
3 [student@servera ~]$ for i in {a..e}; do echo "====server${i}====";ssh-copy-id student@server$i;ssh-copy-id ceph@server$i; done
1 [student@servera ~]$ sudo vi /usr/share/ceph-ansible/ansible.cfg 2 log_path = /tmp/ansible.log #修改日志路径为student用户可写入的/tmp路径 3 deprecation_warnings = false #禁用在ansible-playbook输出结果相关必须要警告
1 [student@servera ~]$ sudo vi /etc/ansible/hosts 2 [mons] 3 server[c:e] 4 5 [mgrs] 6 server[c:e] 7 [student@servera ~]$ ansible mons -m ping #测试mons组节点通信 8 [student@servera ~]$ ansible mgrs -m ping #测试mgrs组节点通信 9 [student@servera ~]$ ansible mons -m command -a id #通过命令测试mons组节点 10 [student@servera ~]$ ansible mgrs -m command -a id #通过命令测试mgrs组节点
1 [student@servera ~]$ cd /usr/share/ceph-ansible/ 2 [student@servera ceph-ansible]$ sudo cp site.yml.sample site.yml 3 [student@servera ceph-ansible]$ sudo vi site.yml 4 #…… 5 - hosts: osds 6 gather_facts: false 7 become: true 8 serial: 1 #在osd（80行左右）添加此行
1 [student@servera ~]$ cd /usr/share/ceph-ansible/group_vars/
2 [student@servera group_vars]$ sudo cp all.yml.sample all.yml
3 [student@servera group_vars]$ sudo vi all.yml
4 ---
5 dummy:
6 ntp_service_enabled: false #本实验采用chrony进行时钟同步
7 ceph_origin: repository
8 ceph_repository: rhcs
9 ceph_rhcs_version: "3"
10 ceph_repository_type: cdn
11 rbd_cache: "true" #开启rbd回写缓存
12 rbd_cache_writethrough_until_flush: "false" #在切换回写之前，不从写透开始。
13 rbd_client_directories: false #不要创建客户机目录(它们应该已经存在)。
14 monitor_interface: eth0
15 journal_size: 1024 #本环境存储设备很小，osd日志比通常建议的要小
16 public_network: 172.25.250.0/24
17 cluster_network: "{{ public_network }}"
18 ceph_conf_overrides:
19 global:
20 mon_osd_allow_primary_affinity: 1
21 mon_clock_drift_allowed: 0.5 #允许mon时钟间隔最多0.5秒
22 osd_pool_default_size: 2
23 osd_pool_default_min_size: 1 #降低存储池复制大小的默认设置
24 mon_pg_warn_min_per_osd: 0 #见提示一
25 mon_pg_warn_max_per_osd: 0 #见提示二
26 mon_pg_warn_max_object_skew: 0 #见提示三
27 client:
28 rbd_default_features: 1 #仅为以后的练习启用一组特定的客户机功能
1 [student@servera ~]$ cd /usr/share/ceph-ansible/ 2 [student@servera ceph-ansible]$ ansible-playbook site.yml
1 [student@servera ~]$ ssh ceph@serverc ceph -s
1 [student@servera ~]$ ssh ceph@serverc cat /etc/ceph/ceph.conf
1 [student@servera ~]$ ssh ceph@serverc ps aux | grep ceph-mon
1 [student@servera ~]$ cd /usr/share/ceph-ansible/group_vars/ 2 [student@servera group_vars]$ sudo cp osds.yml.sample osds.yml 3 [student@servera group_vars]$ sudo vi osds.yml 4 --- 5 dummy: 6 osd_scenario: "collocated" #osd使用并列的osd形式 7 devices: 8 - /dev/vdb #使用/dev/vdb作为后端存储设备
1 [student@servera ~]$ sudo vi /etc/ansible/hosts 2 [mons] 3 server[c:e] 4 5 [mgrs] 6 server[c:e] 7 8 [osds] 9 server[c:e] #追加osds组
1 [student@servera ~]$ cd /usr/share/ceph-ansible/ 2 [student@servera ceph-ansible]$ ansible-playbook site.yml
1 [student@servera ~]$ ssh ceph@serverc ceph -s
1 [student@servera ~]$ ssh ceph@serverc ceph -w #使用此命令监视集群事件
1 [ceph@serverc ~]$ sudo systemctl stop ceph-mon.target #停止serverc的mon进程 2 [ceph@serverc ~]$ ceph -s #观察ceph状态
1 [ceph@serverc ~]$ sudo systemctl start ceph-mon.target #重启开启mon进程 2 [ceph@serverc ~]$ sudo systemctl stop ceph-osd.target #停止serverc的osd进程 3 [ceph@serverc ~]$ ceph -s #观察ceph状态
1 [ceph@serverc ~]$ ceph osd tree #查看osd情况
1 [ceph@serverc ~]$ sudo systemctl start ceph-osd.target #重启开启osd进程 2 [ceph@serverc ~]$ sudo systemctl stop ceph-osd@0 #停止serverc的osd id为0的进程 3 [ceph@serverc ~]$ ceph osd tree #查看osd情况
1 [ceph@serverc ~]$ sudo systemctl start ceph-osd@0 #重启开启osd 0进程 2 [ceph@serverc ~]$ ceph -s #观察ceph状态
1 [ceph@serverc ~]$ ceph -v #查看ceph版本
1 [student@servera ~]$ cd /usr/share/ceph-ansible/group_vars/ 2 [student@servera group_vars]$ sudo cp clients.yml.sample clients.yml 3 [student@servera group_vars]$ sudo vi clients.yml 4 --- 5 dummy: 6 copy_admin_key: true
1 [student@servera ~]$ sudo vi /etc/ansible/hosts 2 [mons] 3 server[c:e] 4 5 [mgrs] 6 server[c:e] 7 8 [osds] 9 server[c:e] 10 11 [clients] 12 servera #追加client客户端<
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