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使用 Red Hat OpenStack Platform director Operator 环境
4.4. 停止 Red Hat OpenStack Platform 服务

4.4. 停止 Red Hat OpenStack Platform 服务

在 OpenShift (RHOSO)上启动 Red Hat OpenStack Services 前，您必须停止 Red Hat OpenStack Platform (RHOSP)服务，以避免为 data plane 采用数据不一致。不一致性是由数据库复制到新部署后资源更改造成的。

您不应该停止基础架构管理服务，例如：

数据库
RabbitMQ
HAProxy Load Balancer
ceph-nfs
计算服务
容器化模块 libvirt 守护进程
Object Storage 服务(swift)后端服务

先决条件

确保没有需要您计划停止的服务的长时间运行任务，如实例实时迁移、卷迁移、卷创建、备份和恢复、附加、分离和其他类似的操作：

$ openstack server list --all-projects -c ID -c Status |grep -E '\| .+ing \|'
$ openstack volume list --all-projects -c ID -c Status |grep -E '\| .+ing \|'| grep -vi error
$ openstack volume backup list --all-projects -c ID -c Status |grep -E '\| .+ing \|' | grep -vi error
$ openstack share list --all-projects -c ID -c Status |grep -E '\| .+ing \|'| grep -vi error
$ openstack image list -c ID -c Status |grep -E '\| .+ing \|'

收集特定于服务拓扑的配置。如需更多信息，请参阅检索特定于拓扑的服务配置。

定义以下 shell 变量：值是示例，引用单一节点独立 director Operator 部署。将这些示例值替换为适合您的环境的值：

CONTROLLER1_SSH="ssh -i <path to SSH key> root@<controller-1 IP>"


CONTROLLER2_SSH="ssh -i <path to SSH key> root@<controller-2 IP>"
CONTROLLER3_SSH="ssh -i <path to SSH key> root@<controller-3 IP>"

指定所有 Controller 节点的 IP 地址，例如：

CONTROLLER1_SSH="ssh -i <path to SSH key> root@<controller-1 IP>"


CONTROLLER2_SSH="ssh -i <path to SSH key> root@<controller-2 IP>"
CONTROLLER3_SSH="ssh -i <path to SSH key> root@<controller-3 IP>"
# ...

1: 将 <path_to_SSH_key > 替换为 SSH 密钥的路径。
1: 将 & lt;controller-<X> IP> 替换为所有 Controller 节点的 IP 地址。

流程

如果您的部署通过 NFS 作为共享文件系统服务(manila)的后端启用 CephFS，请删除以下 Pacemaker 排序和共同定位约束，以管理 ceph-nfs 服务和 manila-share 服务的虚拟 IP 地址：

# check the co-location and ordering constraints concerning "manila-share"
sudo pcs constraint list --full

# remove these constraints
sudo pcs constraint remove colocation-openstack-manila-share-ceph-nfs-INFINITY
sudo pcs constraint remove order-ceph-nfs-openstack-manila-share-Optional

禁用 RHOSP control plane 服务：

# Update the services list to be stopped
ServicesToStop=("tripleo_aodh_api.service"
                "tripleo_aodh_api_cron.service"
                "tripleo_aodh_evaluator.service"
                "tripleo_aodh_listener.service"
                "tripleo_aodh_notifier.service"
                "tripleo_ceilometer_agent_central.service"
                "tripleo_ceilometer_agent_notification.service"
                "tripleo_octavia_api.service"
                "tripleo_octavia_health_manager.service"
                "tripleo_octavia_rsyslog.service"
                "tripleo_octavia_driver_agent.service"
                "tripleo_octavia_housekeeping.service"
                "tripleo_octavia_worker.service"
                "tripleo_horizon.service"
                "tripleo_keystone.service"
                "tripleo_barbican_api.service"
                "tripleo_barbican_worker.service"
                "tripleo_barbican_keystone_listener.service"
                "tripleo_cinder_api.service"
                "tripleo_cinder_api_cron.service"
                "tripleo_cinder_scheduler.service"
                "tripleo_cinder_volume.service"
                "tripleo_cinder_backup.service"
                "tripleo_collectd.service"
                "tripleo_glance_api.service"
                "tripleo_gnocchi_api.service"
                "tripleo_gnocchi_metricd.service"
                "tripleo_gnocchi_statsd.service"
                "tripleo_manila_api.service"
                "tripleo_manila_api_cron.service"
                "tripleo_manila_scheduler.service"
                "tripleo_neutron_api.service"
                "tripleo_placement_api.service"
                "tripleo_nova_api_cron.service"
                "tripleo_nova_api.service"
                "tripleo_nova_conductor.service"
                "tripleo_nova_metadata.service"
                "tripleo_nova_scheduler.service"
                "tripleo_nova_vnc_proxy.service"
                "tripleo_aodh_api.service"
                "tripleo_aodh_api_cron.service"
                "tripleo_aodh_evaluator.service"
                "tripleo_aodh_listener.service"
                "tripleo_aodh_notifier.service"
                "tripleo_ceilometer_agent_central.service"
                "tripleo_ceilometer_agent_compute.service"
                "tripleo_ceilometer_agent_ipmi.service"
                "tripleo_ceilometer_agent_notification.service"
                "tripleo_ovn_cluster_northd.service"
                "tripleo_ironic_neutron_agent.service"
                "tripleo_ironic_api.service"
                "tripleo_ironic_inspector.service"
                "tripleo_ironic_conductor.service")

PacemakerResourcesToStop=("openstack-cinder-volume"
                          "openstack-cinder-backup"
                          "openstack-manila-share")

echo "Stopping systemd OpenStack services"
for service in ${ServicesToStop[*]}; do
        SSH_CMD=CONTROLLER_SSH
        if [ ! -z "${!SSH_CMD}" ]; then
            echo "Stopping the $service in controller $i"
            if ${!SSH_CMD} sudo systemctl is-active $service; then
                ${!SSH_CMD} sudo systemctl stop $service
            fi
        fi
done

echo "Checking systemd OpenStack services"
for service in ${ServicesToStop[*]}; do
    for i in {1..3}; do
        SSH_CMD=CONTROLLER${i}_SSH
        if [ ! -z "${!SSH_CMD}" ]; then
            if ! ${!SSH_CMD} systemctl show $service | grep ActiveState=inactive >/dev/null; then
                echo "ERROR: Service $service still running on controller $i"
            else
                echo "OK: Service $service is not running on controller $i"
            fi
        fi
    done
done

echo "Stopping pacemaker OpenStack services"
    SSH_CMD=CONTROLLER_SSH
    if [ ! -z "${!SSH_CMD}" ]; then
        echo "Using controller $i to run pacemaker commands"
        for resource in ${PacemakerResourcesToStop[*]}; do
            if ${!SSH_CMD} sudo pcs resource config $resource &>/dev/null; then
                echo "Stopping $resource"
                ${!SSH_CMD} sudo pcs resource disable $resource
            else
                echo "Service $resource not present"
            fi
        break
    fi
done

echo "Checking pacemaker OpenStack services"
    SSH_CMD=CONTROLLER_SSH
    if [ ! -z "${!SSH_CMD}" ]; then
        echo "Using controller $i to run pacemaker commands"
        for resource in ${PacemakerResourcesToStop[*]}; do
            if ${!SSH_CMD} sudo pcs resource config $resource &>/dev/null; then
                if ! ${!SSH_CMD} sudo pcs resource status $resource | grep Started; then
                    echo "OK: Service $resource is stopped"
                else
                    echo "ERROR: Service $resource is started"
                fi
            fi
        done
        break
    fi

如果每个服务的状态为 OK，则服务成功停止。

4.4. 停止 Red Hat OpenStack Platform 服务

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