CentOS Stream 8
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OpenStack Victoria : Create Instances
2021/03/23
 
Create and Start Virtual Machine Instance.
[1] Login with a user and create a config for authentication of Keystyone.
The username or password in the config are just the one you added in keystone like here.
Next Create and run an instance.
[cent@dlp ~]$
vi ~/keystonerc
export OS_PROJECT_DOMAIN_NAME=default
export OS_USER_DOMAIN_NAME=default
export OS_PROJECT_NAME=hiroshima
export OS_USERNAME=serverworld
export OS_PASSWORD=userpassword
export OS_AUTH_URL=http://10.0.0.30:5000/v3
export OS_IDENTITY_API_VERSION=3
export OS_IMAGE_API_VERSION=2
export PS1='[\u@\h \W(keystone)]\$ '
[cent@dlp ~]$
chmod 600 ~/keystonerc

[cent@dlp ~]$
source ~/keystonerc

[cent@dlp ~(keystone)]$
echo "source ~/keystonerc " >> ~/.bash_profile
# show available [flavor] list

[cent@dlp ~(keystone)]$
openstack flavor list

+----+----------+------+------+-----------+-------+-----------+
| ID | Name     |  RAM | Disk | Ephemeral | VCPUs | Is Public |
+----+----------+------+------+-----------+-------+-----------+
| 0  | m1.small | 2048 |   10 |         0 |     1 | True      |
+----+----------+------+------+-----------+-------+-----------+

# show available image list

[cent@dlp ~(keystone)]$
openstack image list

+--------------------------------------+-----------------+--------+
| ID                                   | Name            | Status |
+--------------------------------------+-----------------+--------+
| 4d7293af-be5b-471b-9507-2a32f1955b11 | CentOS-Stream-8 | active |
+--------------------------------------+-----------------+--------+

# show available network list

[cent@dlp ~(keystone)]$
openstack network list

+--------------------------------------+------------+--------------------------------------+
| ID                                   | Name       | Subnets                              |
+--------------------------------------+------------+--------------------------------------+
| 1897bcee-670c-4015-8a57-0f61f7865061 | sharednet1 | ba0005fc-ca93-4f5d-b4f2-20e51f6fc44a |
+--------------------------------------+------------+--------------------------------------+

# create a security group for instances

[cent@dlp ~(keystone)]$
openstack security group create secgroup01

+-----------------+--------------------------------------------------------------------------------+
| Field           | Value                                                                          |
+-----------------+--------------------------------------------------------------------------------+
| created_at      | 2021-03-23T04:16:49Z                                                           |
| description     | secgroup01                                                                     |
| id              | 469fb0c0-3fa4-48e7-a1e5-79a0d79bfd01                                           |
| name            | secgroup01                                                                     |
| project_id      | f1f04d774d2141fb9acabd28d0e00c33                                               |
| revision_number | 1                                                                              |
| rules           | created_at='2021-03-23T04:16:49Z', direction='egress', ethertype='IPv6', ..... |
|                 | created_at='2021-03-23T04:16:49Z', direction='egress', ethertype='IPv4', ..... |
| stateful        | True                                                                           |
| tags            | []                                                                             |
| updated_at      | 2021-03-23T04:16:49Z                                                           |
+-----------------+--------------------------------------------------------------------------------+

[cent@dlp ~(keystone)]$
openstack security group list

+--------------------------------------+------------+------------------------+----------------------------------+------+
| ID                                   | Name       | Description            | Project                          | Tags |
+--------------------------------------+------------+------------------------+----------------------------------+------+
| 469fb0c0-3fa4-48e7-a1e5-79a0d79bfd01 | secgroup01 | secgroup01             | f1f04d774d2141fb9acabd28d0e00c33 | []   |
| 674c256f-cac6-4c17-9131-9675d143d494 | default    | Default security group | f1f04d774d2141fb9acabd28d0e00c33 | []   |
+--------------------------------------+------------+------------------------+----------------------------------+------+

# create a SSH keypair for connecting to instances

[cent@dlp ~(keystone)]$
ssh-keygen -q -N ""

Enter file in which to save the key (/home/cent/.ssh/id_rsa):
# add public-key

[cent@dlp ~(keystone)]$
openstack keypair create --public-key ~/.ssh/id_rsa.pub mykey

+-------------+-------------------------------------------------+
| Field       | Value                                           |
+-------------+-------------------------------------------------+
| fingerprint | a1:ea:44:e8:d4:a9:f6:40:f7:05:19:d4:eb:e5:fe:0a |
| name        | mykey                                           |
| user_id     | e08c35de3b6746bd9518c97f7068a71e                |
+-------------+-------------------------------------------------+

[cent@dlp ~(keystone)]$
openstack keypair list

+-------+-------------------------------------------------+
| Name  | Fingerprint                                     |
+-------+-------------------------------------------------+
| mykey | a1:ea:44:e8:d4:a9:f6:40:f7:05:19:d4:eb:e5:fe:0a |
+-------+-------------------------------------------------+

[cent@dlp ~(keystone)]$
netID=$(openstack network list | grep sharednet1 | awk '{ print $2 }')

# create and boot an instance

[cent@dlp ~(keystone)]$
openstack server create --flavor m1.small --image CentOS-Stream-8 --security-group secgroup01 --nic net-id=$netID --key-name mykey CentOS-St-8
+-----------------------------+--------------------------------------------------------+
| Field                       | Value                                                  |
+-----------------------------+--------------------------------------------------------+
| OS-DCF:diskConfig           | MANUAL                                                 |
| OS-EXT-AZ:availability_zone |                                                        |
| OS-EXT-STS:power_state      | NOSTATE                                                |
| OS-EXT-STS:task_state       | scheduling                                             |
| OS-EXT-STS:vm_state         | building                                               |
| OS-SRV-USG:launched_at      | None                                                   |
| OS-SRV-USG:terminated_at    | None                                                   |
| accessIPv4                  |                                                        |
| accessIPv6                  |                                                        |
| addresses                   |                                                        |
| adminPass                   | ms88a8CBHrjF                                           |
| config_drive                |                                                        |
| created                     | 2021-03-23T04:19:23Z                                   |
| flavor                      | m1.small (0)                                           |
| hostId                      |                                                        |
| id                          | 5b2d6808-9703-4591-a896-483f1cba6909                   |
| image                       | CentOS-Stream-8 (4d7293af-be5b-471b-9507-2a32f1955b11) |
| key_name                    | mykey                                                  |
| name                        | CentOS-St-8                                            |
| progress                    | 0                                                      |
| project_id                  | f1f04d774d2141fb9acabd28d0e00c33                       |
| properties                  |                                                        |
| security_groups             | name='469fb0c0-3fa4-48e7-a1e5-79a0d79bfd01'            |
| status                      | BUILD                                                  |
| updated                     | 2021-03-23T04:19:23Z                                   |
| user_id                     | e08c35de3b6746bd9518c97f7068a71e                       |
| volumes_attached            |                                                        |
+-----------------------------+--------------------------------------------------------+

# show status ([BUILD] status is shown when building instance)

[cent@dlp ~(keystone)]$
openstack server list

+--------------------------------------+-------------+--------+----------+-----------------+----------+
| ID                                   | Name        | Status | Networks | Image           | Flavor   |
+--------------------------------------+-------------+--------+----------+-----------------+----------+
| 5b2d6808-9703-4591-a896-483f1cba6909 | CentOS-St-8 | BUILD  |          | CentOS-Stream-8 | m1.small |
+--------------------------------------+-------------+--------+----------+-----------------+----------+

# when starting noramlly, the status turns to [ACTIVE]

[cent@dlp ~(keystone)]$
openstack server list

+--------------------------------------+-------------+--------+-----------------------+-----------------+----------+
| ID                                   | Name        | Status | Networks              | Image           | Flavor   |
+--------------------------------------+-------------+--------+-----------------------+-----------------+----------+
| 5b2d6808-9703-4591-a896-483f1cba6909 | CentOS-St-8 | ACTIVE | sharednet1=10.0.0.224 | CentOS-Stream-8 | m1.small |
+--------------------------------------+-------------+--------+-----------------------+-----------------+----------+
[2] Configure security settings for the security group you created above to access with SSH and ICMP.
# permit ICMP

[cent@dlp ~(keystone)]$
openstack security group rule create --protocol icmp --ingress secgroup01

+-------------------+--------------------------------------+
| Field             | Value                                |
+-------------------+--------------------------------------+
| created_at        | 2021-03-23T04:20:36Z                 |
| description       |                                      |
| direction         | ingress                              |
| ether_type        | IPv4                                 |
| id                | 625ded53-8a40-4e3a-8108-9343832ea93c |
| name              | None                                 |
| port_range_max    | None                                 |
| port_range_min    | None                                 |
| project_id        | f1f04d774d2141fb9acabd28d0e00c33     |
| protocol          | icmp                                 |
| remote_group_id   | None                                 |
| remote_ip_prefix  | 0.0.0.0/0                            |
| revision_number   | 0                                    |
| security_group_id | 469fb0c0-3fa4-48e7-a1e5-79a0d79bfd01 |
| tags              | []                                   |
| updated_at        | 2021-03-23T04:20:36Z                 |
+-------------------+--------------------------------------+

# permit SSH

[cent@dlp ~(keystone)]$
openstack security group rule create --protocol tcp --dst-port 22:22 secgroup01

+-------------------+--------------------------------------+
| Field             | Value                                |
+-------------------+--------------------------------------+
| created_at        | 2021-03-23T04:20:50Z                 |
| description       |                                      |
| direction         | ingress                              |
| ether_type        | IPv4                                 |
| id                | 52055b2a-8517-4dbf-a182-d2357d29615d |
| name              | None                                 |
| port_range_max    | 22                                   |
| port_range_min    | 22                                   |
| project_id        | f1f04d774d2141fb9acabd28d0e00c33     |
| protocol          | tcp                                  |
| remote_group_id   | None                                 |
| remote_ip_prefix  | 0.0.0.0/0                            |
| revision_number   | 0                                    |
| security_group_id | 469fb0c0-3fa4-48e7-a1e5-79a0d79bfd01 |
| tags              | []                                   |
| updated_at        | 2021-03-23T04:20:50Z                 |
+-------------------+--------------------------------------+

[cent@dlp ~(keystone)]$
openstack security group rule list

+--------------------------------------+-------------+-----------+-----------+------------+------------+
| ID                                   | IP Protocol | Ethertype | IP Range  | Port Range | Remote Sec |
+--------------------------------------+-------------+-----------+-----------+------------+------------+
| 00a13bf4-9fd0-4dd7-b793-7df4d2f57600 | None        | IPv6      | ::/0      |            | None       |
| 52055b2a-8517-4dbf-a182-d2357d29615d | tcp         | IPv4      | 0.0.0.0/0 | 22:22      | None       |
| 625ded53-8a40-4e3a-8108-9343832ea93c | icmp        | IPv4      | 0.0.0.0/0 |            | None       |
| 6263d19b-fc72-4944-9ad0-c97a28661702 | None        | IPv6      | ::/0      |            | None       |
| 92d18dd9-ad87-431d-808d-5311c0c47943 | None        | IPv6      | ::/0      |            | 674c2..... |
| 990e0f4a-1eca-4a13-8e04-1e3d5969f22a | None        | IPv4      | 0.0.0.0/0 |            | None       |
| c3be9697-831f-4cb8-b4b7-3ced378e86a3 | None        | IPv4      | 0.0.0.0/0 |            | 674c2..... |
| d1c5228a-bcd1-46bf-839f-aa6035585316 | None        | IPv4      | 0.0.0.0/0 |            | None       |
+--------------------------------------+-------------+-----------+-----------+------------+------------+
[3] Login to the instance with SSH.
[cent@dlp ~(keystone)]$
openstack server list

+--------------------------------------+-------------+--------+-----------------------+-----------------+----------+
| ID                                   | Name        | Status | Networks              | Image           | Flavor   |
+--------------------------------------+-------------+--------+-----------------------+-----------------+----------+
| 5b2d6808-9703-4591-a896-483f1cba6909 | CentOS-St-8 | ACTIVE | sharednet1=10.0.0.224 | CentOS-Stream-8 | m1.small |
+--------------------------------------+-------------+--------+-----------------------+-----------------+----------+

[cent@dlp ~(keystone)]$
ping 10.0.0.224 -c3

PING 10.0.0.224 (10.0.0.224) 56(84) bytes of data.
64 bytes from 10.0.0.224: icmp_seq=1 ttl=64 time=2.12 ms
64 bytes from 10.0.0.224: icmp_seq=2 ttl=64 time=1.12 ms
64 bytes from 10.0.0.224: icmp_seq=3 ttl=64 time=0.760 ms

--- 10.0.0.224 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 0.760/1.334/2.122/0.576 ms

[cent@dlp ~(keystone)]$
ssh centos@10.0.0.224
The authenticity of host '10.0.0.224 (10.0.0.224)' can't be established.
ECDSA key fingerprint is SHA256:9V7gTMh2wGbgagyHph8zggYJwysFaGJSG8GKWOZraQ0.
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
Warning: Permanently added '10.0.0.224' (ECDSA) to the list of known hosts.
Activate the web console with: systemctl enable --now cockpit.socket

[centos@centos-st-8 ~]$     # logined
[4] If you'd like to stop an instance, it's possible to control with openstack command like follows.
[cent@dlp ~(keystone)]$
openstack server list

+--------------------------------------+-------------+--------+-----------------------+-----------------+----------+
| ID                                   | Name        | Status | Networks              | Image           | Flavor   |
+--------------------------------------+-------------+--------+-----------------------+-----------------+----------+
| 5b2d6808-9703-4591-a896-483f1cba6909 | CentOS-St-8 | ACTIVE | sharednet1=10.0.0.224 | CentOS-Stream-8 | m1.small |
+--------------------------------------+-------------+--------+-----------------------+-----------------+----------+

# stop instance

[cent@dlp ~(keystone)]$
openstack server stop CentOS-St-8

[cent@dlp ~(keystone)]$
openstack server list

+--------------------------------------+-------------+---------+-----------------------+-----------------+----------+
| ID                                   | Name        | Status  | Networks              | Image           | Flavor   |
+--------------------------------------+-------------+---------+-----------------------+-----------------+----------+
| 5b2d6808-9703-4591-a896-483f1cba6909 | CentOS-St-8 | SHUTOFF | sharednet1=10.0.0.224 | CentOS-Stream-8 | m1.small |
+--------------------------------------+-------------+---------+-----------------------+-----------------+----------+

# start instance

[cent@dlp ~(keystone)]$
openstack server start CentOS-St-8

[cent@dlp ~(keystone)]$
openstack server list

+--------------------------------------+-------------+--------+-----------------------+-----------------+----------+
| ID                                   | Name        | Status | Networks              | Image           | Flavor   |
+--------------------------------------+-------------+--------+-----------------------+-----------------+----------+
| 5b2d6808-9703-4591-a896-483f1cba6909 | CentOS-St-8 | ACTIVE | sharednet1=10.0.0.224 | CentOS-Stream-8 | m1.small |
+--------------------------------------+-------------+--------+-----------------------+-----------------+----------+
[5] It's possible to access with Web browser to get VNC console.
[cent@dlp ~(keystone)]$
openstack server list

+--------------------------------------+-------------+--------+-----------------------+-----------------+----------+
| ID                                   | Name        | Status | Networks              | Image           | Flavor   |
+--------------------------------------+-------------+--------+-----------------------+-----------------+----------+
| 5b2d6808-9703-4591-a896-483f1cba6909 | CentOS-St-8 | ACTIVE | sharednet1=10.0.0.224 | CentOS-Stream-8 | m1.small |
+--------------------------------------+-------------+--------+-----------------------+-----------------+----------+

[cent@dlp ~(keystone)]$
openstack console url show CentOS-St-8

+-------+------------------------------------------------------------------------------------------+
| Field | Value                                                                                    |
+-------+------------------------------------------------------------------------------------------+
| type  | novnc                                                                                    |
| url   | http://10.0.0.30:6080/vnc_auto.html?path=%3Ftoken%3D2fd73068-6408-412e-8497-a77d8871c89a |
+-------+------------------------------------------------------------------------------------------+
[6] Access to the URL which was displayed by the command above, then you can use your instance on the web browser.
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