CentOS Stream 8
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OpenStack Wallaby : Create Instances2021/04/22

 
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 |
+--------------------------------------+-----------------+--------+
| a7f1ad19-4d09-498c-8152-404bf626af98 | CentOS-Stream-8 | active |
+--------------------------------------+-----------------+--------+

# show available network list

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

+--------------------------------------+------------+--------------------------------------+
| ID                                   | Name       | Subnets                              |
+--------------------------------------+------------+--------------------------------------+
| a174e1f9-ecf7-437b-b31e-9c37f164ec76 | sharednet1 | b4a9ceeb-2b79-48c0-9799-0965fbd6f77a |
+--------------------------------------+------------+--------------------------------------+

# create a security group for instances

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

+-----------------+-------------------------------------------------------------------------------+
| Field           | Value                                                                         |
+-----------------+-------------------------------------------------------------------------------+
| created_at      | 2021-04-22T05:24:42Z                                                          |
| description     | secgroup01                                                                    |
| id              | f93ac919-bc4b-442f-a601-79b1f4c20cc5                                          |
| name            | secgroup01                                                                    |
| project_id      | 9bdf6ca0e49a416da8df5554fbfdec74                                              |
| revision_number | 1                                                                             |
| rules           | created_at='2021-04-22T05:24:42Z', direction='egress', ethertype='IPv4',..... |
|                 | created_at='2021-04-22T05:24:42Z', direction='egress', ethertype='IPv6',..... |
| stateful        | True                                                                          |
| tags            | []                                                                            |
| updated_at      | 2021-04-22T05:24:42Z                                                          |
+-----------------+-------------------------------------------------------------------------------+

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

+--------------------------------------+------------+------------------------+----------------------------------+------+
| ID                                   | Name       | Description            | Project                          | Tags |
+--------------------------------------+------------+------------------------+----------------------------------+------+
| 9f58ed95-4a13-4580-bcca-8fe4dd562a89 | default    | Default security group | 9bdf6ca0e49a416da8df5554fbfdec74 | []   |
| f93ac919-bc4b-442f-a601-79b1f4c20cc5 | secgroup01 | secgroup01             | 9bdf6ca0e49a416da8df5554fbfdec74 | []   |
+--------------------------------------+------------+------------------------+----------------------------------+------+

# 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                                           |
+-------------+-------------------------------------------------+
| created_at  | None                                            |
| fingerprint | e9:e1:7e:6e:7f:53:70:8d:28:2c:4e:78:30:80:e2:47 |
| id          | mykey                                           |
| is_deleted  | None                                            |
| name        | mykey                                           |
| type        | ssh                                             |
| user_id     | b7aeb44b614d46f69b4a53ecee906800                |
+-------------+-------------------------------------------------+

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

+-------+-------------------------------------------------+------+
| Name  | Fingerprint                                     | Type |
+-------+-------------------------------------------------+------+
| mykey | e9:e1:7e:6e:7f:53:70:8d:28:2c:4e:78:30:80:e2:47 | ssh  |
+-------+-------------------------------------------------+------+

[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                   | 5GJ7vYZzu6bg                                           |
| config_drive                |                                                        |
| created                     | 2021-04-22T05:27:10Z                                   |
| flavor                      | m1.small (0)                                           |
| hostId                      |                                                        |
| id                          | 2b04dc33-aff9-4e55-8f09-d2156f7a6660                   |
| image                       | CentOS-Stream-8 (a7f1ad19-4d09-498c-8152-404bf626af98) |
| key_name                    | mykey                                                  |
| name                        | CentOS-St-8                                            |
| progress                    | 0                                                      |
| project_id                  | 9bdf6ca0e49a416da8df5554fbfdec74                       |
| properties                  |                                                        |
| security_groups             | name='f93ac919-bc4b-442f-a601-79b1f4c20cc5'            |
| status                      | BUILD                                                  |
| updated                     | 2021-04-22T05:27:10Z                                   |
| user_id                     | b7aeb44b614d46f69b4a53ecee906800                       |
| volumes_attached            |                                                        |
+-----------------------------+--------------------------------------------------------+

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

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

+--------------------------------------+-------------+--------+----------+-----------------+----------+
| ID                                   | Name        | Status | Networks | Image           | Flavor   |
+--------------------------------------+-------------+--------+----------+-----------------+----------+
| 2b04dc33-aff9-4e55-8f09-d2156f7a6660 | 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   |
+--------------------------------------+-------------+--------+-----------------------+-----------------+----------+
| 2b04dc33-aff9-4e55-8f09-d2156f7a6660 | CentOS-St-8 | ACTIVE | sharednet1=10.0.0.210 | 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              | 2021-04-22T05:28:19Z                 |
| description             |                                      |
| direction               | ingress                              |
| ether_type              | IPv4                                 |
| id                      | 9543774f-4244-4702-8bbd-f81663706511 |
| name                    | None                                 |
| port_range_max          | None                                 |
| port_range_min          | None                                 |
| project_id              | 9bdf6ca0e49a416da8df5554fbfdec74     |
| protocol                | icmp                                 |
| remote_address_group_id | None                                 |
| remote_group_id         | None                                 |
| remote_ip_prefix        | 0.0.0.0/0                            |
| revision_number         | 0                                    |
| security_group_id       | f93ac919-bc4b-442f-a601-79b1f4c20cc5 |
| tags                    | []                                   |
| updated_at              | 2021-04-22T05:28:19Z                 |
+-------------------------+--------------------------------------+

# permit SSH

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

+-------------------------+--------------------------------------+
| Field                   | Value                                |
+-------------------------+--------------------------------------+
| created_at              | 2021-04-22T05:28:51Z                 |
| description             |                                      |
| direction               | ingress                              |
| ether_type              | IPv4                                 |
| id                      | 43aa0950-5e61-4d02-b00d-880cff09c194 |
| name                    | None                                 |
| port_range_max          | 22                                   |
| port_range_min          | 22                                   |
| project_id              | 9bdf6ca0e49a416da8df5554fbfdec74     |
| protocol                | tcp                                  |
| remote_address_group_id | None                                 |
| remote_group_id         | None                                 |
| remote_ip_prefix        | 0.0.0.0/0                            |
| revision_number         | 0                                    |
| security_group_id       | f93ac919-bc4b-442f-a601-79b1f4c20cc5 |
| tags                    | []                                   |
| updated_at              | 2021-04-22T05:28:51Z                 |
+-------------------------+--------------------------------------+

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

+--------------------------------------+-------------+-----------+-----------+------------+-----------+-----------------------+----------------------+
| ID                                   | IP Protocol | Ethertype | IP Range  | Port Range | Direction | Remote Security Group | Remote Address Group |
+--------------------------------------+-------------+-----------+-----------+------------+-----------+-----------------------+----------------------+
| 43aa0950-5e61-4d02-b00d-880cff09c194 | tcp         | IPv4      | 0.0.0.0/0 | 22:22      | ingress   | None                  | None                 |
| 6baaacef-4045-4e1d-8180-0fca158d91bb | None        | IPv4      | 0.0.0.0/0 |            | egress    | None                  | None                 |
| 7241a8aa-e3e3-4dfc-8e5b-186580ca2ed4 | None        | IPv6      | ::/0      |            | egress    | None                  | None                 |
| 9543774f-4244-4702-8bbd-f81663706511 | icmp        | IPv4      | 0.0.0.0/0 |            | ingress   | None                  | None                 |
+--------------------------------------+-------------+-----------+-----------+------------+-----------+-----------------------+----------------------+
[3] Login to the instance with SSH.
[cent@dlp ~(keystone)]$
openstack server list

+--------------------------------------+-------------+--------+-----------------------+-----------------+----------+
| ID                                   | Name        | Status | Networks              | Image           | Flavor   |
+--------------------------------------+-------------+--------+-----------------------+-----------------+----------+
| 2b04dc33-aff9-4e55-8f09-d2156f7a6660 | CentOS-St-8 | ACTIVE | sharednet1=10.0.0.210 | CentOS-Stream-8 | m1.small |
+--------------------------------------+-------------+--------+-----------------------+-----------------+----------+

[cent@dlp ~(keystone)]$
ping 10.0.0.210 -c3

PING 10.0.0.210 (10.0.0.210) 56(84) bytes of data.
64 bytes from 10.0.0.210: icmp_seq=1 ttl=64 time=1.91 ms
64 bytes from 10.0.0.210: icmp_seq=2 ttl=64 time=0.892 ms
64 bytes from 10.0.0.210: icmp_seq=3 ttl=64 time=0.525 ms

--- 10.0.0.210 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 0.525/1.107/1.905/0.584 ms

[cent@dlp ~(keystone)]$
ssh centos@10.0.0.210
The authenticity of host '10.0.0.210 (10.0.0.210)' can't be established.
ECDSA key fingerprint is SHA256:8I8kM9t2oo8hneE8InhQOWkV9AhED7wbp5La7AfIomw.
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
Warning: Permanently added '10.0.0.210' (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   |
+--------------------------------------+-------------+--------+-----------------------+-----------------+----------+
| 2b04dc33-aff9-4e55-8f09-d2156f7a6660 | CentOS-St-8 | ACTIVE | sharednet1=10.0.0.210 | 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   |
+--------------------------------------+-------------+---------+-----------------------+-----------------+----------+
| 2b04dc33-aff9-4e55-8f09-d2156f7a6660 | CentOS-St-8 | SHUTOFF | sharednet1=10.0.0.210 | 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   |
+--------------------------------------+-------------+--------+-----------------------+-----------------+----------+
| 2b04dc33-aff9-4e55-8f09-d2156f7a6660 | CentOS-St-8 | ACTIVE | sharednet1=10.0.0.210 | 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   |
+--------------------------------------+-------------+--------+-----------------------+-----------------+----------+
| 2b04dc33-aff9-4e55-8f09-d2156f7a6660 | CentOS-St-8 | ACTIVE | sharednet1=10.0.0.210 | CentOS-Stream-8 | m1.small |
+--------------------------------------+-------------+--------+-----------------------+-----------------+----------+

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

+----------+------------------------------------------------------------------------------------------+
| Field    | Value                                                                                    |
+----------+------------------------------------------------------------------------------------------+
| protocol | vnc                                                                                      |
| type     | novnc                                                                                    |
| url      | http://10.0.0.30:6080/vnc_auto.html?path=%3Ftoken%3D8ad40ae9-bf0d-4afe-87fe-771e0bd54832 |
+----------+------------------------------------------------------------------------------------------+
[6] Access to the URL which was displayed by the command above.
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