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OpenStack Liberty : Run Instances
2015/11/15 |
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Create and Start Virtual Machine Instance.
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| [1] | Specify the flavor (memory or disk) and create an instance and boot it. |
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# default flavor list [root@dlp ~(keystone)]# nova flavor-list +----+-----------+-----------+------+-----------+------+-------+-------------+-----------+ | ID | Name | Memory_MB | Disk | Ephemeral | Swap | VCPUs | RXTX_Factor | Is_Public | +----+-----------+-----------+------+-----------+------+-------+-------------+-----------+ | 1 | m1.tiny | 512 | 1 | 0 | | 1 | 1.0 | True | | 2 | m1.small | 2048 | 20 | 0 | | 1 | 1.0 | True | | 3 | m1.medium | 4096 | 40 | 0 | | 2 | 1.0 | True | | 4 | m1.large | 8192 | 80 | 0 | | 4 | 1.0 | True | | 5 | m1.xlarge | 16384 | 160 | 0 | | 8 | 1.0 | True | +----+-----------+-----------+------+-----------+------+-------+-------------+-----------+ # show the list of images [root@dlp ~(keystone)]# nova image-list +--------------------------------------+---------+--------+--------+ | ID | Name | Status | Server | +--------------------------------------+---------+--------+--------+ | 34beed31-2971-43f0-9c5a-d39d3df1d501 | CentOS7 | ACTIVE | | +--------------------------------------+---------+--------+--------+ # create and boot an instance [root@dlp ~(keystone)]# nova boot --flavor 2 --image CentOS7 --security_group default CentOS_7
+--------------------------------------+------------------------------------------------+
| Property | Value |
+--------------------------------------+------------------------------------------------+
| OS-DCF:diskConfig | MANUAL |
| OS-EXT-AZ:availability_zone | |
| OS-EXT-SRV-ATTR:host | - |
| OS-EXT-SRV-ATTR:hypervisor_hostname | - |
| OS-EXT-SRV-ATTR:instance_name | instance-00000001 |
| OS-EXT-STS:power_state | 0 |
| OS-EXT-STS:task_state | scheduling |
| OS-EXT-STS:vm_state | building |
| OS-SRV-USG:launched_at | - |
| OS-SRV-USG:terminated_at | - |
| accessIPv4 | |
| accessIPv6 | |
| adminPass | 53htaThSqWxK |
| config_drive | |
| created | 2015-11-14T12:19:53Z |
| flavor | m1.small (2) |
| hostId | |
| id | 7ff32145-c80a-4384-a0cb-0160e3482e65 |
| image | CentOS7 (34beed31-2971-43f0-9c5a-d39d3df1d501) |
| key_name | - |
| metadata | {} |
| name | CentOS_7 |
| os-extended-volumes:volumes_attached | [] |
| progress | 0 |
| security_groups | default |
| status | BUILD |
| tenant_id | d625e02b3d394afbad250def2f88fefa |
| updated | 2015-11-14T12:19:53Z |
| user_id | b4c316b93a464f8ea46b01bd01a52003 |
+--------------------------------------+------------------------------------------------+
# show status [root@dlp ~(keystone)]# nova list +-----------+----------+--------+------------+-------------+--------------------+ | ID | Name | Status | Task State | Power State | Networks | +-----------+----------+--------+------------+-------------+--------------------+ | 7ff32145- | CentOS_7 | BUILD | spawning | NOSTATE | network01=10.1.0.2 | +-----------+----------+--------+------------+-------------+--------------------+ |
| [2] | Login to the Instance just booted. |
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# after few minutes later, the Status turns "ACTIVE" like follows [root@dlp ~(keystone)]# nova list +-----------+----------+--------+------------+-------------+--------------------+ | ID | Name | Status | Task State | Power State | Networks | +-----------+----------+--------+------------+-------------+--------------------+ | 7ff32145- | CentOS_7 | ACTIVE | - | Running | network01=10.1.0.2 | +-----------+----------+--------+------------+-------------+--------------------+ # it's OK if ICMP answer replys like follows [root@dlp ~(keystone)]# ping 10.1.0.2 [root@dlp ~(keystone)]# ping 10.1.0.2 PING 10.1.0.2 (10.1.0.2) 56(84) bytes of data. 64 bytes from 10.1.0.2: icmp_seq=1 ttl=64 time=1.12 ms 64 bytes from 10.1.0.2: icmp_seq=2 ttl=64 time=0.628 ms --- 10.1.0.2 ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 1001ms rtt min/avg/max/mdev = 0.628/0.878/1.128/0.250 ms # login with SSH [root@dlp ~(keystone)]# ssh 10.1.0.2 The authenticity of host '10.1.0.2 (10.1.0.2)' can't be established. ECDSA key fingerprint is 03:3d:a6:2c:21:0d:03:cc:de:29:d1:c0:3b:4d:4c:e7. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added '10.1.0.2' (ECDSA) to the list of known hosts. root@10.1.0.2's password: Last login: Sat Nov 14 21:10:58 2015 [root@centos-7 ~]# # just logined normally |
| [3] | If you'd like to stop an instance, it's also possible to control with nova command like follows. |
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[root@dlp ~(keystone)]# nova list +-----------+----------+--------+------------+-------------+--------------------+ | ID | Name | Status | Task State | Power State | Networks | +-----------+----------+--------+------------+-------------+--------------------+ | 7ff32145- | CentOS_7 | ACTIVE | - | Running | network01=10.1.0.2 | +-----------+----------+--------+------------+-------------+--------------------+ # stop instance [root@dlp ~(keystone)]# nova stop CentOS_7 Request to stop server CentOS_7 has been accepted. [root@dlp ~(keystone)]# nova list +-----------+----------+---------+------------+-------------+--------------------+ | ID | Name | Status | Task State | Power State | Networks | +-----------+----------+---------+------------+-------------+--------------------+ | 7ff32145- | CentOS_7 | SHUTOFF | - | Shutdown | network01=10.1.0.2 | +-----------+----------+---------+------------+-------------+--------------------+ # start instance [root@dlp ~(keystone)]# nova start CentOS_7 Request to start server CentOS_7 has been accepted. [root@dlp ~(keystone)]# nova list +-----------+----------+--------+------------+-------------+--------------------+ | ID | Name | Status | Task State | Power State | Networks | +-----------+----------+--------+------------+-------------+--------------------+ | 7ff32145- | CentOS_7 | ACTIVE | - | Running | network01=10.1.0.2 | +-----------+----------+--------+------------+-------------+--------------------+ |