Openstack云平台搭建课程八·控制节点集群

集群应用及配置

集群资源管理软件包括PCS和ETCD。

PCS创建VIP

也可以为这些VIP绑定主机域名解析（步骤略），注意修改网卡名称及IP地址。

pcs resource create mariadbvip ocf:heartbeat:IPaddr2 \
ip=10.10.100.99 cidr_netmask=24 nic=ens33 op monitor interval=30s
pcs resource create rabbitmqvip ocf:heartbeat:IPaddr2 \
ip=10.10.100.98 cidr_netmask=24 nic=ens33 op monitor interval=30s
pcs resource create httpdvip ocf:heartbeat:IPaddr2 \
ip=10.10.100.97 cidr_netmask=24 nic=ens33 op monitor interval=30s
pcs resource create glancevip ocf:heartbeat:IPaddr2 \
ip=10.10.100.96 cidr_netmask=24 nic=ens33 op monitor interval=30s
pcs resource create neutronvip ocf:heartbeat:IPaddr2 \
ip=10.10.100.95 cidr_netmask=24 nic=ens33 op monitor interval=30s
pcs resource create novavip ocf:heartbeat:IPaddr2 \
ip=10.10.100.94 cidr_netmask=24 nic=ens33 op monitor interval=30s
pcs resource create cindervip ocf:heartbeat:IPaddr2 \
ip=10.10.100.93 cidr_netmask=24 nic=ens33 op monitor interval=30s

PCS创建资源

pcs resource create haproxy systemd:httpd --clone interleave=true
pcs resource create keystone systemd:httpd --clone interleave=true
pcs resource create glance-api systemd:openstack-glance-api --clone interleave=true
pcs resource create glance-registry systemd:openstack-glance-registry --clone interleave=true
pcs resource create neutron-server systemd:neutron-server --clone interleave=true
pcs resource create neutron-linuxbridge systemd:neutron-linuxbridge-agent --clone interleave=true
pcs resource create neutron-l3 systemd:neutron-l3-agent --clone interleave=true
pcs resource create neutron-dhcp systemd:neutron-dhcp-agent --clone interleave=true
pcs resource create neutron-metadata systemd:neutron-metadata-agent --clone interleave=true
pcs resource create nova-api systemd:openstack-nova-api --clone interleave=true
pcs resource create nova-consoleauth systemd:openstack-nova-consoleauth --clone interleave=true
pcs resource create nova-scheduler systemd:openstack-nova-scheduler --clone interleave=true
pcs resource create nova-conductor systemd:openstack-nova-conductor --clone interleave=true
pcs resource create nova-novncproxy systemd:openstack-nova-novncproxy --clone interleave=true
pcs resource create cinder-api systemd:openstack-cinder-api --clone interleave=true
pcs resource create cinder-scheduler systemd:openstack-cinder-scheduler --clone interleave=true

也可以通过crm管理集群资源，不过需要安装软件包“crmsh”，创建资源方法如下：

# 将rabbitmq加入集群监控
crm configure primitive rabbitmq-server systemd:rabbitmq-server \
params environment_file="/etc/profile.d/rabbitmq-server.sh" \
op start interval=0s timeout=600 \
op stop interval=0s timeout=120 \
op monitor interval=10 timeout=20 \
meta priority=100
crm configure clone rabbitmq-server-clone rabbitmq-server meta target-role=Started

#cat /etc/profile.d/rabbitmq-server.sh
#export RABBITMQ_USE_LONGNAME=true

# 将haproxy加入集群监控中
crm configure primitive haproxy systemd:haproxy \
op start interval=0s \
op start interval=0s timeout=20s \
op stop interval=0s timeout=20s \
op monitor interval=20s timeout=30s \
meta priority=100 target-role=Started
colocation haproxy-with-vip inf: vip:Started haproxy:Started

# 将memcached加入集群监控中
crm configure primitive memcached systemd:memcached params \
op monitor interval=30s timeout=30s
crm configure clone openstack-dashboard-clone httpd meta
crm configure clone openstack-memcached-clone memcached

# 将openstack-glance-registry加入集群监控中
crm configure primitive openstack-glance-registry systemd:openstack-glance-registry \
op start interval=0s timeout=45s \
op stop interval=0s timeout=45s \
op monitor interval=30s timeout=30s

PCS定义服务启动顺序

# 定义 neutron
pcs constraint order order_neutron-metadata-agent_neutron-dhcp-agent \
neutron-metadata-agent-clone:start neutron-dhcp-agent-clone:start \
symmetrical=true

# 定义 memcached + dashboard
pcs constraint order order_memcached_httpd openstack-memcached-clone:start\
openstack-dashboard-clone:start \
symmetrical=true

# 定义 vip + haproxy + neutron-server
pcs constraint order order_vip_haproxy vip:start haproxy:start \
pcs constraint order order_vip_neutron-server vip:start \
openstack-neutron-server-clone:start

# 定义 neutron-openvswitch + neutron-metadata
pcs constraint order order_neutron-openvswitch-agent_neutron-metadata-agent \
neutron-openvswitch-agent-clone:start neutron-metadata-agent-clone:start \
symmetrical=true

# 定义 memcached + nova-consoleauth
pcs constraint order order_memcached_nova-consoleauth \
openstack-memcached-clone:start openstack-nova-consoleauth-clone:start\
symmetrical=true

# 定义 neutron-metadata + neutron-l3
pcs constraint order order_neutron-metadata-agent_neutron-l3-agent \
neutron-metadata-agent-clone:start neutron-l3-agent-clone:start \
symmetrical=true

ETCD配置

注意：配置中的IP地址不能用主机名代替，各节点需要绑定本机IP。

#[member]
ETCD_NAME="controller1"
ETCD_DATA_DIR="/var/lib/etcd/default.etcd"
ETCD_LISTEN_PEER_URLS="http://10.10.100.150:2380"
ETCD_LISTEN_CLIENT_URLS="http://10.10.100.150:2379,http://10.10.100.150:4001"

#[cluster]
ETCD_INITIAL_ADVERTISE_PEER_URLS="http://10.10.100.150:2380"
ETCD_ADVERTISE_CLIENT_URLS="http://10.10.100.150:2379,http://10.10.100.150:4001"
ETCD_INITIAL_CLUSTER="controller1=http://10.10.100.150:2380,controller2=http://10.10.100.149:2380,controller3=http://10.10.100.148:2380"
ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster"
ETCD_INITIAL_CLUSTER_STATE="new"

原创文章禁止转载：技术学堂 » Openstack云平台搭建课程八·控制节点集群