CL110 - ch04s06

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Guided Exercise: Launching and Verifying a Non-public Instance

In this exercise, you will launch an application's component service as a non-public, tenant instance, and verify that the component is functioning correctly.

Outcomes

You should be able to launch, verify, and delete an instance.

As the student user on the workstation machine, use the lab command to prepare your system for this exercise.

This command ensures that all resources required for the exercise are present.

[student@workstation ~]$ lab nonpublic-launch start

Procedure 4.3. Instructions

This guided exercise is in two parts. In part 1 you use the CLI to verify OpenStack components and create an instance, and in part 2 you use the Dashboard to review the instance and OpenStack components used.

On workstation, as the developer1 user, verify the OpenStack flavor and image components.

On workstation, source the /home/student/developer1-finance-rc user environment file.

[student@workstation ~]$ source ~/developer1-finance-rc
[student@workstation ~(developer1-finance)]$

Use the openstack flavor list command to list the available flavors. Limit the output to the flavor name and ID. Confirm that a flavor named default exists.

[student@workstation ~(developer1-finance)]$ openstack flavor list -c ID -c Name
+--------------------------------------+--------------------+
| ID                                   | Name               |
+--------------------------------------+--------------------+
| 1300bcd3-d252-45fb-953b-8cd250dbc860 | default-swap       |
| 61b3e917-1e97-47cf-84e2-1c8a173ecd26 | default-extra-disk |
| 8ff1eecb-15b4-4f32-bb99-4dec999a78c7 | default            |
+--------------------------------------+--------------------+

Use the openstack image list command to list the available images. Ensure that the status for rhel8 is active.

[student@workstation ~(developer1-finance)]$ openstack image list
+--------------------------------------+-----------+--------+
| ID                                   | Name      | Status |
+--------------------------------------+-----------+--------+
...output omitted...
| 2b4db644-96a3-4cd9-a6be-024618a14c71 | rhel8     | active |
| da22a79b-5425-424c-9b06-86bf56fd9090 | rhel8-db  | active |
| 642e5661-0754-41bf-9906-7d34eda53050 | rhel8-web | active |
+--------------------------------------+-----------+--------+

Launch a new instance named finance-server3 using existing resources. Verify that the instance is running.

Create a new instance called finance-server3. Use the rhel8 image and the default flavor.

[student@workstation ~(developer1-finance)]$ openstack server create \
> --image rhel8 \
> --flavor default \
> --wait finance-server3
Multiple possible networks found, use a Network ID to be more specific. (HTTP 409) (Request-ID: req-70dc92d9-13a0-4b18-91a0-372bdd6d1d74)
[student@workstation ~(developer1-finance)]$

Note the error produced. Use the openstack network list command to list all available networks. Limit the output to the network ID and name. You can see from the output that multiple networks are available.

[student@workstation ~(developer1-finance)]$ openstack network list -c ID -c Name
+--------------------------------------+---------------------+
| ID                                   | Name                |
+--------------------------------------+---------------------+
| 1433baea-e20d-4321-937f-511a2d934e3d | finance-network1    |
| 4e37dea5-9694-4f7b-b0d8-99bdfd97dd41 | finance-network2    |
| ec2be8e9-8d0e-400d-9c35-b8479bb38a2e | provider-storage    |
| ef95203b-7c9f-46c0-b328-e51aa7729798 | provider-datacentre |
| f48bc111-39d2-4f0b-8788-30ad499c5498 | provider1-103       |
+--------------------------------------+---------------------+

Re-create finance-server3 using finance-network2, the rhel8 image, and the default flavor.

Confirm that the instance status is running. Establish that the correct flavor, image, and network are used.

[student@workstation ~(developer1-finance)]$ openstack server create \
> --image rhel8 \
> --flavor default \
> --nic net-id=finance-network2 \
> --wait finance-server3
+-----------------------------+----------------------------------------+
| Field                       | Value                                  |
+-----------------------------+----------------------------------------+
| OS-DCF:diskConfig           | MANUAL                                 |
| OS-EXT-AZ:availability_zone | nova                                   |
| OS-EXT-STS:power_state      | Running                                |
| OS-EXT-STS:task_state       | None                                   |
| OS-EXT-STS:vm_state         | active                                 |
| OS-SRV-USG:launched_at      | 2020-05-12T09:01:31.000000             |
| OS-SRV-USG:terminated_at    | None                                   |
| accessIPv4                  |                                        |
| accessIPv6                  |                                        |
| addresses                   | finance-network2=192.168.2.140         |
| adminPass                   | 7KDuUWwXKJae                           |
| config_drive                |                                        |
| created                     | 2020-05-12T09:00:55Z                   |
| flavor                      | default (8ff1...8c7)                   |
| hostId                      | 353d7...381fa5aa8a3bc0ebac0a1b         |
| id                          | 39b1...7e6                             |
| image                       | rhel8 (2b4d...c71)                     |
| key_name                    | None                                   |
| name                        | finance-server3                        |
| progress                    | 0                                      |
| project_id                  | 4a08af8fda6a4609ad293613e0e637e3       |
| properties                  |                                        |
| security_groups             | name='default'                         |
| status                      | ACTIVE                                 |
| updated                     | 2020-05-12T09:01:32Z                   |
| user_id                     | b3bf7...fd45d45a1470bce0adcce1a5c3570  |
| volumes_attached            |                                        |
+-----------------------------+----------------------------------------+

Note

Use the Dashboard to perform the following steps.

Log in to the Dashboard using developer1 as the user name, Example as the domain, and redhat as the password. Find and review the finance-server3 instance.
1. Log in to the Dashboard using developer1 as the user name, Example as the domain, and redhat as the password.
2. Click Project at the upper right of the window, and confirm that the current project is set to finance.
3. Navigate to Compute → Instances and then click finance-server3. In the Overview page, confirm that Flavor Name is set to default, RAM is set to 2GB, and VCPUs is set to two.
  Confirm that the image name is rhel8. Click rhel8. Confirm that Min. Disk is set to 10, and that Min. RAM is set to 2048.
Navigate to Network → Network Topology. Confirm that finance-server3 is attached to finance-network2.
Delete finance-server3. Navigate to Compute → Instances. Select finance-server3 and then click Delete Instances. Click Delete Instances to confirm.

Finish

On the workstation machine, use the lab command to complete this exercise. This is important to ensure that resources from previous exercises do not impact upcoming exercises.

[student@workstation ~]$ lab nonpublic-launch finish

This concludes the guided exercise.

Discuss Red Hat OpenStack Administration I: Core Operations for Domain Operators

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Red Hat OpenStack Administration I: Core Operations for Domain Operators (CL110)

Haley_Ruccio

1 sie 2023

Learn to operate a Red Hat® OpenStack Platform private cloud and manage domain resources to secure and deploy modern, scalable cloud applications, networks and storageRed Hat OpenStack Administration I: Core Operations for Domain Operators (CL110) teaches you how to operate and manage a production Red Hat OpenStack Platform (RHOSP) single-site overcloud. You will learn how to create secure project environments in which to provision resources and manage security privileges that cloud users need to deploy scalable cloud applications. You will learn about OpenShift integration with load balancers, identity management, monitoring, proxies, and storage. You will also develop more troubleshooting and Day 2 operations skills in this course.This course is based on Red Hat OpenStack Platform 16.1.Course content summaryStudents in the Red Hat OpenStack Administration I: Core Operations for Domain Operators (CL110) course will focus on performing both routine and specialized tasks that are necessary to manage a production OpenStack overcloud domain. Students will manage OpenStack using both web-based and command-line interfaces. Essential skills covered in the course include the following:Launch instances to satisfy various use case examples.Manage domains, projects, users, roles, and quota in a multitenant environment.Manage networks, subnets, routers, and floating IP addresses.Manage instance security with group rules and access keys.Create and manage block, object and shared storage within OpenStack.Perform instance launch customization with cloud-init.Deploy scalable applications using stack templates.Audience for this courseThis course is designed for cloud users who deploy application instances and stacks, domain operators who manage resources and security for cloud users, and any other cloud personnel interested in, or responsible for, maintaining applications on private or hybrid OpenStack clouds. Any cloud persona, or personnel with roles that include performing technology evaluation, should attend this course to learn RHOSP operation and application deployment methods.Prerequisites for this courseBecome a Red Hat Certified System Administrator (RHCSA) or demonstrate equivalent experienceIf you are not a RHCSA, you can take a skill assessment to gauge your level of knowledge.

Welcome to the Red Hat OpenStack Administration I (CL110) group in the Red Hat Learning Community!

Syed

31 lip 2023

We are excited to launch a space dedicated to the Red Hat Training course CL110! To gain the most value from this group - click the "Join Group" button in the upper right hand corner of the group home page.We encourage group members to collaborate in this group to discuss topics, ask questions, share best practices and tips, provide course feedback, and share their accomplishments as it relates to CL110.Read more about Red Hat OpenStack Administration I: Core Operations for Domain Operators here.

Revision: cl110-16.1-4c76154