主机预留¶
先决条件¶
应安装以下软件包
blazar
blazar-nova
python-blazarclient
1. 将主机添加到空闲池¶
使用 host-create 命令将主机添加到 Blazar 空闲池
# Using the blazar CLI
blazar host-create compute-1
# Using the openstack CLI
openstack reservation host create compute-1
检查空闲池中的主机
# Using the blazar CLI
blazar host-list
# Using the openstack CLI
openstack reservation host list
结果
+----+---------------------+-------+-----------+----------+
| id | hypervisor_hostname | vcpus | memory_mb | local_gb |
+----+---------------------+-------+-----------+----------+
| 1 | compute-1 | 2 | 3951 | 38 |
+----+---------------------+-------+-----------+----------+
(可选) 为主机添加额外的能力以添加其他属性。这些可用于在创建预留时过滤主机。
# Using the blazar CLI
blazar host-update --extra gpu=True compute-1
# Using the openstack CLI
openstack reservation host set --extra gpu=True compute-1
结果
Updated host: compute-1
可以包含多个 --extra 参数。它们也可以在 host-create 中指定。属性可以设为私有或公共。默认情况下，它们是公共的。
# Using the blazar CLI
blazar host-capability-update gpu --private
# Using the openstack CLI
openstack reservation host capability update gpu --private
结果
Updated host extra capability: gpu
2. 创建租赁¶
使用 lease-create 命令创建租约（计算主机预留）
# Using the blazar CLI
blazar lease-create --physical-reservation min=1,max=1,hypervisor_properties='[">=", "$vcpus", "2"]' --start-date "2020-06-08 12:00" --end-date "2020-06-09 12:00" lease-1
# Using the openstack CLI
openstack reservation lease create --reservation resource_type=physical:host,min=1,max=1,hypervisor_properties='[">=", "$vcpus", "2"]' --start-date "2020-06-08 12:00" --end-date "2020-06-09 12:00" lease-1
注意
在 openstack 客户端中不可用 --physical-reservation 标志，而是使用 --reservation resource_type=physical:host，如上所示。
结果
+---------------+---------------------------------------------------------------------------------------------------------------------------------------------+
| Field | Value |
+---------------+---------------------------------------------------------------------------------------------------------------------------------------------+
| action | |
| created_at | 2020-06-08 02:43:40 |
| end_date | 2020-06-09T12:00:00.000000 |
| events | {"status": "UNDONE", "lease_id": "6638c31e-f6c8-4982-9b98-d2ca0a8cb646", "event_type": "before_end_lease", "created_at": "2020-06-08 |
| | 02:43:40", "updated_at": null, "time": "2020-06-08T12:00:00.000000", "id": "420caf25-dba5-4ac3-b377-50503ea5c886"} |
| | {"status": "UNDONE", "lease_id": "6638c31e-f6c8-4982-9b98-d2ca0a8cb646", "event_type": "start_lease", "created_at": "2020-06-08 02:43:40", |
| | "updated_at": null, "time": "2020-06-08T12:00:00.000000", "id": "b9696139-55a1-472d-baff-5fade2c15243"} |
| | {"status": "UNDONE", "lease_id": "6638c31e-f6c8-4982-9b98-d2ca0a8cb646", "event_type": "end_lease", "created_at": "2020-06-08 02:43:40", |
| | "updated_at": null, "time": "2020-06-09T12:00:00.000000", "id": "ff9e6f52-db50-475a-81f1-e6897fdc769d"} |
| id | 6638c31e-f6c8-4982-9b98-d2ca0a8cb646 |
| name | lease-1 |
| project_id | 4527fa2138564bd4933887526d01bc95 |
| reservations | {"status": "pending", "lease_id": "6638c31e-f6c8-4982-9b98-d2ca0a8cb646", "resource_id": "8", "max": 1, "created_at": "2020-06-08 |
| | 02:43:40", "min": 1, "updated_at": null, "hypervisor_properties": "[\">=\", \"$vcpus\", \"2\"]", "resource_properties": "", "id": |
| | "4d3dd68f-0e3f-4f6b-bef7-617525c74ccb", "resource_type": "physical:host"} |
| start_date | 2020-06-08T12:00:00.000000 |
| status | |
| status_reason | |
| trust_id | ba4c321878d84d839488216de0a9e945 |
| updated_at | |
| user_id | |
+---------------+---------------------------------------------------------------------------------------------------------------------------------------------+
检查租赁
# Using the blazar CLI
blazar lease-list
# Using the openstack CLI
openstack reservation lease list
结果
+--------------------------------------+---------+----------------------------+----------------------------+
| id | name | start_date | end_date |
+--------------------------------------+---------+----------------------------+----------------------------+
| 6638c31e-f6c8-4982-9b98-d2ca0a8cb646 | lease-1 | 2020-06-08T12:00:00.000000 | 2020-06-09T12:00:00.000000 |
+--------------------------------------+---------+----------------------------+----------------------------+
或者，使用资源属性创建租约。首先列出属性。
# Using the blazar CLI
blazar host-capability-list
# Using the openstack CLI
openstack reservation host capability list
结果
+----------+
| property |
+----------+
| gpu |
+----------+
列出属性的可能值
# Using the blazar CLI
blazar host-capability-show gpu
# Using the openstack CLI
openstack reservation host capability show gpu
结果
+-------------------+-------+
| Field | Value |
+-------------------+-------+
| capability_values | True |
| | False |
| private | False |
| property | gpu |
+-------------------+-------+
创建租约。
# Using the blazar CLI
blazar lease-create --physical-reservation min=1,max=1,resource_properties='["=", "$gpu", "True"]' --start-date "2020-06-08 12:00" --end-date "2020-06-09 12:00" lease-1
# Using the openstack CLI
openstack reservation lease create --reservation resource_type=physical:host,min=1,max=1,resource_properties='[">=", "$vcpus", "2"]' --start-date "2020-06-08 12:00" --end-date "2020-06-09 12:00" lease-1
结果
+---------------+---------------------------------------------------------------------------------------------------------------------------------------------+
| Field | Value |
+---------------+---------------------------------------------------------------------------------------------------------------------------------------------+
| action | |
| created_at | 2020-06-08 02:43:40 |
| end_date | 2020-06-09T12:00:00.000000 |
| events | {"status": "UNDONE", "lease_id": "6638c31e-f6c8-4982-9b98-d2ca0a8cb646", "event_type": "before_end_lease", "created_at": "2020-06-08 |
| | 02:43:40", "updated_at": null, "time": "2020-06-08T12:00:00.000000", "id": "420caf25-dba5-4ac3-b377-50503ea5c886"} |
| | {"status": "UNDONE", "lease_id": "6638c31e-f6c8-4982-9b98-d2ca0a8cb646", "event_type": "start_lease", "created_at": "2020-06-08 02:43:40", |
| | "updated_at": null, "time": "2020-06-08T12:00:00.000000", "id": "b9696139-55a1-472d-baff-5fade2c15243"} |
| | {"status": "UNDONE", "lease_id": "6638c31e-f6c8-4982-9b98-d2ca0a8cb646", "event_type": "end_lease", "created_at": "2020-06-08 02:43:40", |
| | "updated_at": null, "time": "2020-06-09T12:00:00.000000", "id": "ff9e6f52-db50-475a-81f1-e6897fdc769d"} |
| id | 6638c31e-f6c8-4982-9b98-d2ca0a8cb646 |
| name | lease-1 |
| project_id | 4527fa2138564bd4933887526d01bc95 |
| reservations | {"status": "pending", "lease_id": "6638c31e-f6c8-4982-9b98-d2ca0a8cb646", "resource_id": "8", "max": 1, "created_at": "2020-06-08 |
| | 02:43:40", "min": 1, "updated_at": null, "hypervisor_properties": "", "resource_properties": "[\"=\", \"$gpu\", \"True\"]", "id": |
| | "4d3dd68f-0e3f-4f6b-bef7-617525c74ccb", "resource_type": "physical:host"} |
| start_date | 2020-06-08T12:00:00.000000 |
| status | |
| status_reason | |
| trust_id | ba4c321878d84d839488216de0a9e945 |
| updated_at | |
| user_id | |
+---------------+---------------------------------------------------------------------------------------------------------------------------------------------+
3. 使用已租用的资源¶
创建服务器：请将预留 ID 指定为调度器提示。
openstack server create --flavor <flavor> --image <image> --network <network> --hint reservation=4d3dd68f-0e3f-4f6b-bef7-617525c74ccb <server-name>
