CentOS 6
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OpenStack Havana - Run Instance
2013/10/22
 
Create and Run Virtual Machine Instance.
[1] Create a network which instances use in OpenStack internal system.
# nova-manage network create --label (any name) --dns1 (DNS server) --fixed_range_v4=(internal range)

[root@dlp ~(keystone)]#
nova-manage network create --label network01 --dns1 10.0.0.10 --fixed_range_v4=10.1.0.0/24

[root@dlp ~(keystone)]#
nova-manage network list

id   IPv4           IPv6   start address   DNS1        DNS2    VlanID   project   uuid
1    10.1.0.0/24    None   10.1.0.2        10.0.0.10   None    None     None      a02b7b6d-1fb1-
[2] Change default security rules to access to instances with SSH.
# permit SSH

[root@dlp ~(keystone)]#
nova secgroup-add-rule default tcp 22 22 0.0.0.0/0

+-------------+-----------+---------+-----------+--------------+
| IP Protocol | From Port | To Port | IP Range  | Source Group |
+-------------+-----------+---------+-----------+--------------+
| tcp         | 22        | 22      | 0.0.0.0/0 |              |
+-------------+-----------+---------+-----------+--------------+

# permit ICMP

[root@dlp ~(keystone)]#
nova secgroup-add-rule default icmp -1 -1 0.0.0.0/0

+-------------+-----------+---------+-----------+--------------+
| IP Protocol | From Port | To Port | IP Range  | Source Group |
+-------------+-----------+---------+-----------+--------------+
| icmp        | -1        | -1      | 0.0.0.0/0 |              |
+-------------+-----------+---------+-----------+--------------+

[root@dlp ~(keystone)]#
nova secgroup-list-rules default

+-------------+-----------+---------+-----------+--------------+
| IP Protocol | From Port | To Port | IP Range  | Source Group |
+-------------+-----------+---------+-----------+--------------+
| tcp         | 22        | 22      | 0.0.0.0/0 |              |
| icmp        | -1        | -1      | 0.0.0.0/0 |              |
+-------------+-----------+---------+-----------+--------------+
[3] Specify flavor (memory or disk) and create an instance and boot it.
# 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      |
+----+-----------+-----------+------+-----------+------+-------+-------------+-----------+

# confirm virtual image

[root@dlp ~(keystone)]#
nova image-list

+--------------------------------------+---------+--------+--------+
| ID                                   | Name    | Status | Server |
+--------------------------------------+---------+--------+--------+
| 46042f47-c307-4fce-af0d-a1b2c14d6d78 | CentOS6 | ACTIVE |        |
+--------------------------------------+---------+--------+--------+

# create and boot an instance

[root@dlp ~(keystone)]#
nova boot --flavor 2 --image CentOS6 --security_group default CentOS_64

+--------------------------------------+--------------------------------------+
| Property                             | Value                                |
+--------------------------------------+--------------------------------------+
| OS-EXT-STS:task_state                | scheduling                           |
| image                                | CentOS6                              |
| OS-EXT-STS:vm_state                  | building                             |
| OS-EXT-SRV-ATTR:instance_name        | instance-00000003                    |
| OS-SRV-USG:launched_at               | None                                 |
| flavor                               | m1.small                             |
| id                                   | 081bba5e-0a88-4ae5-9757-645f682d172b |
| security_groups                      | [{u'name': u'default'}]              |
| user_id                              | 279ade4f97014020b0e7855f2f72e40f     |
| OS-DCF:diskConfig                    | MANUAL                               |
| accessIPv4                           |                                      |
| accessIPv6                           |                                      |
| progress                             | 0                                    |
| OS-EXT-STS:power_state               | 0                                    |
| OS-EXT-AZ:availability_zone          | nova                                 |
| config_drive                         |                                      |
| status                               | BUILD                                |
| updated                              | 2013-10-22T13:55:47Z                 |
| hostId                               |                                      |
| OS-EXT-SRV-ATTR:host                 | None                                 |
| OS-SRV-USG:terminated_at             | None                                 |
| key_name                             | None                                 |
| OS-EXT-SRV-ATTR:hypervisor_hostname  | None                                 |
| name                                 | CentOS_64                            |
| adminPass                            | sC68kbDrrCgE                         |
| tenant_id                            | 97be94660c2043e58fee407bc9cde0d5     |
| created                              | 2013-10-22T13:55:47Z                 |
| os-extended-volumes:volumes_attached | []                                   |
| metadata                             | {}                                   |
+--------------------------------------+--------------------------------------+

# confirm status

[root@dlp ~(keystone)]#
nova list

+------------+-----------+--------+------------+-------------+--------------------+
| ID         | Name      | Status | Task State | Power State | Networks           |
+------------+-----------+--------+------------+-------------+--------------------+
| 081bba5e-0 | CentOS_64 | BUILD  | spawning   | NOSTATE     | network01=10.1.0.2 |
+------------+-----------+--------+------------+-------------+--------------------+
[4] Login to the Instance just booted.
# after few minutes later, the Status turns "ACTIVE" like follows

[root@dlp ~(keystone)]#
nova list

+------------+-----------+--------+------------+-------------+--------------------+
| ID         | Name      | Status | Task State | Power State | Networks           |
+------------+-----------+--------+------------+-------------+--------------------+
| 081bba5e-0 | CentOS_64 | ACTIVE | None       | Running     | network01=10.1.0.2 |
+------------+-----------+--------+------------+-------------+--------------------+

# it's OK if answer replys like follows

[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=0.278 ms
64 bytes from 10.1.0.2: icmp_seq=2 ttl=64 time=0.433 ms
^C
--- 10.1.0.2 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1652ms
rtt min/avg/max/mdev = 0.278/0.355/0.433/0.079 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.
RSA key fingerprint is xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:6b:9e:a6.
Are you sure you want to continue connecting (yes/no)?
yes

Warning: Permanently added '10.1.0.2' (RSA) to the list of known hosts.
root@10.1.0.2's password:
# the root password you set during virtual machine installation

Last login: Tue Oct 22 12:42:21 2013
[root@centos-64 ~]#
# just logined normally

[5] If you'd like to stop an instance, it's possible to shutdown in instance with shutdown command off course, but it's also possible to control with nova command like follows.
[root@dlp ~(keystone)]#
nova list

+------------+-----------+--------+------------+-------------+--------------------+
| ID         | Name      | Status | Task State | Power State | Networks           |
+------------+-----------+--------+------------+-------------+--------------------+
| 081bba5e-0 | CentOS_64 | ACTIVE | None       | Running     | network01=10.1.0.2 |
+------------+-----------+--------+------------+-------------+--------------------+

# stop instance

[root@dlp ~(keystone)]#
nova stop CentOS_64

[root@dlp ~(keystone)]#
nova list

+------------+-----------+---------+------------+-------------+--------------------+
| ID         | Name      | Status  | Task State | Power State | Networks           |
+------------+-----------+---------+------------+-------------+--------------------+
| 081bba5e-0 | CentOS_64 | SHUTOFF | None       | Shutdown    | network01=10.1.0.2 |
+------------+-----------+---------+------------+-------------+--------------------+

# start instance again

[root@dlp ~(keystone)]#
nova start CentOS_64

[root@dlp ~(keystone)]#
nova list

+------------+-----------+--------+------------+-------------+--------------------+
| ID         | Name      | Status | Task State | Power State | Networks           |
+------------+-----------+--------+------------+-------------+--------------------+
| 081bba5e-0 | CentOS_64 | ACTIVE | None       | Running     | network01=10.1.0.2 |
+------------+-----------+--------+------------+-------------+--------------------+
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