二、OpenStack命令行管理
1. 常用命令及基本操作
1.1 命令帮助
不知道命令的解决办法：
[root@openstack ~(keystone_bruce)]# glance list
usage: glance [--version] [-d] [-v] [--get-schema] [--timeout TIMEOUT]
[--no-ssl-compression] [-f] [--os-image-url OS_IMAGE_URL]
[--os-image-api-version OS_IMAGE_API_VERSION]
[--profile HMAC_KEY] [-k] [--os-cert OS_CERT]
[--cert-file OS_CERT] [--os-key OS_KEY] [--key-file OS_KEY]
[--os-cacert <ca-certificate-file>] [--ca-file OS_CACERT]
[--os-username OS_USERNAME] [--os-user-id OS_USER_ID]
[--os-user-domain-id OS_USER_DOMAIN_ID]
[--os-user-domain-name OS_USER_DOMAIN_NAME]
[--os-project-id OS_PROJECT_ID]
[--os-project-name OS_PROJECT_NAME]
[--os-project-domain-id OS_PROJECT_DOMAIN_ID]
[--os-project-domain-name OS_PROJECT_DOMAIN_NAME]
[--os-password OS_PASSWORD] [--os-tenant-id OS_TENANT_ID]
[--os-tenant-name OS_TENANT_NAME] [--os-auth-url OS_AUTH_URL]
[--os-region-name OS_REGION_NAME]
[--os-auth-token OS_AUTH_TOKEN]
[--os-service-type OS_SERVICE_TYPE]
[--os-endpoint-type OS_ENDPOINT_TYPE]
<subcommand> ...
glance: error: argument <subcommand>: invalid choice: u'list' (choose from 'image-create', 'image-delete', 'image-download', 'image-list', 'image-show', 'image-update', 'member-create', 'member-delete', 'member-list', 'help')
查找某一条命令以及使用方法：
[root@openstack ~(keystone_bruce)]# glance --help |grep li
Command-line interface to the OpenStack Images API.
image-list List images you can access.
member-list Describe sharing permissions by image or tenant.
performance profiling of operation. This key should be
profiling will not be triggered even if osprofiler is
-k, --insecure Explicitly allow glanceclient to perform "insecure
--os-key OS_KEY Path of client key to use in SSL connection. This
[root@openstack ~(keystone_bruce)]# glance image-list
+--------------------------------------+---------------+-------------+------------------+-----------+--------+
| ID | Name | Disk Format | Container Format | Size | Status |
+--------------------------------------+---------------+-------------+------------------+-----------+--------+
| 9ded416e-e660-470b-9275-b3d96c9c8754 | CentOS7-64bit | qcow2 | bare | 356777984 | active |
+--------------------------------------+---------------+-------------+------------------+-----------+--------+
# 查询命令的使用
[root@openstack ~(keystone_bruce)]# nova help delete
usage: nova delete <server> [<server> ...]
Immediately shut down and delete specified server(s).
Positional arguments:
<server> Name or ID of server(s).
1.2 查看命令
查看运行的服务
[root@openstack ~(keystone_admin)]# openstack-service status
neutron-dhcp-agent (pid 4243) is active
neutron-l3-agent (pid 4242) is active
neutron-metadata-agent (pid 1573) is active
neutron-openvswitch-agent (pid 4244) is active
neutron-server (pid 1572) is active
openstack-ceilometer-alarm-evaluator (pid 1630) is active
openstack-ceilometer-alarm-notifier (pid 1625) is active
...
查看云服务器在哪台宿主机上（只能在管理员账号上看）
[root@openstack ~(keystone_admin)]# nova list --all-tenants
+--------------------------------------+-------+---------+------------+-------------+---------------------------------------+
| ID | Name | Status | Task State | Power State | Networks |
+--------------------------------------+-------+---------+------------+-------------+---------------------------------------+
| 3c33a084-a32f-4cc7-99ae-17aaa1b8dfdb | web01 | SHUTOFF | - | Shutdown | private=192.168.119.2, 192.168.19.152 |
+--------------------------------------+-------+---------+------------+-------------+---------------------------------------+
[root@openstack ~(keystone_admin)]# nova show 3c33a084-a32f-4cc7-99ae-17aaa1b8dfdb
+--------------------------------------+----------------------------------------------------------+
| Property | Value |
+--------------------------------------+----------------------------------------------------------+
| OS-DCF:diskConfig | MANUAL |
| OS-EXT-AZ:availability_zone | nova |
| OS-EXT-SRV-ATTR:host | openstack |
| OS-EXT-SRV-ATTR:hypervisor_hostname | openstack |
| OS-EXT-SRV-ATTR:instance_name | instance-00000003 |
| OS-EXT-STS:power_state | 4 |
| OS-EXT-STS:task_state | - |
| OS-EXT-STS:vm_state | stopped |
| OS-SRV-USG:launched_at | 2023-07-31T15:43:51.000000 |
| OS-SRV-USG:terminated_at | - |
| accessIPv4 | |
| accessIPv6 | |
| config_drive | |
| created | 2023-07-31T15:43:35Z |
| flavor | rhel.little (7a063e20-6b58-4fe8-be10-39801a4cd9f9) |
| hostId | 396967f512d04e61ce25745058b1518b0522ac949ae6c50399fc9ae9 |
| id | 3c33a084-a32f-4cc7-99ae-17aaa1b8dfdb |
| image | rhel7-64bit (37cf0b4b-4911-4763-96bb-3e539b8f8b8a) |
| key_name | key001 |
| metadata | {} |
| name | web01 |
| os-extended-volumes:volumes_attached | [] |
| private network | 192.168.119.2, 192.168.19.152 |
| security_groups | SG01 |
| status | SHUTOFF |
| tenant_id | 668b9defbdf04ce3aeca8bae0e451e13 |
| updated | 2023-08-01T09:11:45Z |
| user_id | 67dc3389c42648298bcabb7b60290ac7 |
+--------------------------------------+----------------------------------------------------------+
Linux排错思路
重现错误，实时查看日志的新增内容（前提是你知道哪个组件出了问题），例如创建云磁盘失败时：
[root@openstack cinder]# tail -f * |grep -iE -A3 -B3 '(err|warn)'
# -f 实时显示最新产生的日志文件
# * 代表文件夹下面所有的日志文件
# grep -iE 过滤关键字，-i选项忽略大小写，-E给出两个选项，任一都可以
# -A3 -B3 关键字前后三行都显示出来，可能会有有用信息
1.3 查看OpenStack版本
OpenStack是不提供版本查看的命令，需要查看就只能曲线救国，先查看某一个组件的版本，比如nova
[root@openstack ~(keystone_admin)]# nova --version
2.20.0
去OpenStack官网查看，发现是juno版本的OpenStack