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CentOS部署OpenStack过程-块存储服务

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安装并配置控制节点

安装条件

  1. 数据库
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    # login
    mysql -u root -p
    # create database
    create database cinder;
    # grant privilege
    grant all privileges on cinder.* to 'cid_db'@'localhost' identified by 'passwd';
    grant all privileges on cinder.* to 'cid_db'@'192.168.122.%' identified by 'passwd';
  1. 获取admin凭证
    . admin-openrc

  2. 创建用户

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    # create user
    openstack user create \
    --domain default \
    --password-prompt cinder
    # create role
    openstack role --project service --user cinder admin

  3. 创建服务实体
    块存储服务要求2个服务实体

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    # create cinder
    openstack service create --name cinder \
    --description "OpenStack Block Storge" volume
    # create cinderv2
    openstack service create --name cinderv2 \
    --description "OpenStack Block Storge" volumev2

  4. 创建endpoint

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    # create volume endpoint for public internal admin
    openstack endpoint create region RegionOne \
    volume public http://ops-cont:8776/v1/%\(tenant_id\)s
    # create volumev2 endpoint like volume
    openstack endpoint create region RegionOne \
    volumev2 public http://ops-cont:8776/v2/%\(tenant_id\)s

安装配置组件

  1. 安装组件
    yum install openstack-cinder -y

  2. 配置cinder.conf

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    vi /etc/cinder/cinder.conf
    # configure database in [database]
    connection=mysql+pymysql://cid_db:db_passwd@ops-cont/cinder
    # configure [DEFAULT]
    [DEFAULT]
    rpc_backend=rabbit
    auth_strategy=keystone
    my_ip=192.168.122.200
    # configure rabbit in [oslo_messaging_rabbit]
    [oslo_messaging_rabbit]
    rabbit_host=ops-cont
    rabbit_id=openstack
    rabbit_password=passwd
    # configure auth in [keystone_authtoken]
    [keystone_authtoken]
    auth_uri=http://ops-cont:5000
    auth_url=http://ops-cont:35357
    memcached_servers=ops-cont:11211
    auth_type=password
    project_domain_name=default
    user_domain_name=default
    project_name=service
    username=cinder
    password=passwd
    # configure lock path in [oslo_concurrency]
    [oslo_concurrency]
    lock_path=/var/lib/cinder/tmp

  3. 同步数据库
    su -c /bin/sh -c "cinder-manage db sync" cinder

  4. 配置计算节点使用块存储
    在计算节点中执行的操作

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    vi /etc/nova/nova.conf
    # add region name in [cinder]
    [cinder]
    os_region_name=RegionOne

  5. 启动服务

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    # restart nova-api
    systemctl restart openstack-nova-api
    # start cinder service
    systemctl start openstack-cinder-api openstack-cinder-scheduler
    systemctl enable openstack-cinder-api openstack-cinder-scheduler

验证操作

添加存储节点后，在控制节点中执行验证操作：cinder service-list
cinder-service-list

添加并配置存储节点

lvm工具会扫描/dev目录，照抄包含卷的块存储设备，如果项目在系统卷上使用lvm，扫描工具检测到这些卷时会尝试缓存它们，这样会在底层操作系统和项目卷上产生问题。在配置lvm时，需要创建一个过滤器，只接受/dev/sdb设备，拒绝其他所有设备。
过滤器组中的元素都以a开头，即accept,或以r开头，即reject,并且包括一个设备名称的正则表达式规则，以r/.*/结束，如果操作系统使用了lvm，也必须要把操作系统相关设备添加到过滤器中。

  1. 将新添加的硬盘添加到lvm中

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    # create pv
    pvcreate /dev/vdb
    # create lvm group
    vgcreate -s 4M cinder /dev/vdb
    # create filter
    vi /etc/lvm/lvm.conf
    # create a filter
    filter=["a/vda/","a/vdb/","r/.*/"]

  2. 安装并配置组件

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    # install
    yum install centos-release-openstack-ocata -y
    yum install openstack-cinder targetcli python-keystone -y
    yum install mariadb python2-pymysql -y
    # configure cinder.conf
    vi /etc/cinder/cinder.conf
    [DEFAULT]
    rpc_backend=rabbit
    auth_strategy=keystone
    my_ip=192.168.122.90
    enabled_backends=lvm
    glance_api_servers=http://ops-cont:9292
    [database]
    connection=mysql+pymysql://cid_db:db_passwd@ops-cont/cinder
    [oslo_messaging_rabbit]
    rabbit_host=ops-cont
    rabbit_id=openstack
    rabbit_password=passwd
    [keystone_authtoken]
    auth_uri=http://ops-cont:5000
    auth_url=http://ops-cont:35357
    memcached_servers=ops-cont:11211
    auth_type=password
    project_domain_name=default
    user_domain_name=default
    project_name=service
    username=cinder
    password=passwd
    [lvm]
    volume_driver=cinder.volume.drivers.lvm.LVMVolumeDriver
    volume_group=cinder
    iscsi_protocol=iscsi
    iscsi_helper=lioadm
    [oslo_concurrency]
    lock_path=/var/lib/cinder/tmp

  3. 启动服务

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    systemctl start openstack-cinder-volume target
    systemctl enable openstack-cinder-volume target

参考

  1. 计算节点配置块存储服务
  2. 添加一个块存储节点