CL110 - ch06s04

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Guided Exercise: Analyzing Object Storage Technologies

In this exercise, you will create an object container, upload an object, and configure it to expire.

Outcomes

You should be able to:

Create a container.
Load objects into a container.
Configure object expiry.

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 storage-compare start

Procedure 6.2. Instructions

As the operator1 user in the finance project, create a new object container called customer-dropbox.

On workstation source the identity environment file for the operator1 user in the finance project.

[student@workstation ~]$ source ~/operator1-finance-rc
[student@workstation ~(operator1-finance)]$

Use the openstack container create command to create the container.

[student@workstation ~(operator1-finance)]$ openstack container create \
> customer-dropbox
+------------------+------------------+-------------+
| account          | container        | x-trans-id  |
+------------------+------------------+-------------+
| AUTH_3813...7d6f | customer-dropbox | tx91...c359 |
+------------------+------------------+-------------+

Upload statement-20200710.zip into customer-dropbox. Configure statement-20200710.zip to expire after 2 minutes. Verify the object is unavailable after the expiry time.

Use the openstack object create command to upload /home/student/statement-20200710.zip into customer-dropbox.

[student@workstation ~(operator1-finance)]$ openstack object create \
> --name statement-20200710.zip \
> customer-dropbox /home/student/statement-20200710.zip
+------------------------+------------------+----------------------------------+
| object                 | container        | etag                             |
+------------------------+------------------+----------------------------------+
| statement-20200710.zip | customer-dropbox | e5ff7d4d2f8b496b0ceef585b0b1ff84 |
+------------------------+------------------+----------------------------------+

Use the swift post command to set the expiry for statement-20200710.zip to 120 seconds from now.
```
[student@workstation ~(operator1-finance)]$ swift post customer-dropbox \
> statement-20200710.zip -H "X-Delete-After:120"
```
Object expiry information is added to the hidden .expiring_objects account.

Use the swift stat command to view the expiry time for the statement-20200710.zip object.

[student@workstation ~(operator1-finance)]$ swift stat customer-dropbox \
> statement-20200710.zip
               Account: AUTH_381390ecd6d94ec297704a011dd87d6f
             Container: customer-dropbox
                Object: statement-20200710.zip
          Content Type: application/zip
        Content Length: 200
         Last Modified: Fri, 10 Jul 2020 03:40:33 GMT
                  ETag: e5ff7d4d2f8b496b0ceef585b0b1ff84
           X-Delete-At: 1594352552
           X-Timestamp: 1594352432.58468
         Accept-Ranges: bytes
            X-Trans-Id: tx899d5c18498d4bdba028e-005f07e336
X-Openstack-Request-Id: tx899d5c18498d4bdba028e-005f07e336

Note that the X-Delete-After value was automatically converted to an X-Delete-At value, which is an absolute date and time in Unix timestamp format.

Convert the X-Delete-At value to standard datetime format.

[student@workstation ~(operator1-finance)]$ date -d @1594352552
Fri Jul 10 03:42:32 UTC 2020

The statement-20200710.zip object should be unavailable after the time shown in the previous step.

[student@workstation ~(operator1-finance)]$ openstack object show \
> customer-dropbox statement-20200710.zip
Not Found (HTTP 404) (Request-ID: txf442ab46babf4ef0b4a79-005f07e6e5)

Even though the statement-20200710.zip object is unavailable, it may not be deleted immediately. View the Swift logs on controller0.

Log on to controller0 as heat-admin, then become root.

[student@workstation ~(operator1-finance)]$ ssh heat-admin@controller0
[heat-admin@controller0 ~]$ sudo -i
[root@controller0 ~]#

Use the grep command to search for object-expirer messages in /var/log/containers/swift/swift.log.

[root@controller0 ~]# grep object-expirer /var/log/containers/swift/swift.log
...output omitted...
Jul 10 03:44:43 controller0 object-expirer[5564]: Pass beginning for task account .expiring_objects; 1 possible containers; 1 possible objects (txn: tx6912349188844e679e7bf-005f07e42b)
Jul 10 03:44:43 controller0 object-expirer[5564]: Pass completed in 0s; 1 objects expired (txn: tx58a6cc1f911d4de5ade04-005f07e42b)
...output omitted...

The object-expirer daemon regularly checks for expiring objects in the hidden .expiring_objects account.

When an object has expired, it will eventually be deleted, however it may take several minutes. Use the grep command to search for the deletion of the statement-20200710.zip object. Log out when finished.

[root@controller0 ~]# grep DELETE /var/log/containers/swift/swift.log
Jul 10 03:44:43 controller0 container-server[7928]: 172.24.4.1 - - [10/Jul/2020:03:44:43 +0000] "DELETE /d1/368/AUTH_381390ecd6d94ec297704a011dd87d6f/customer-dropbox/statement-20200710.zip" 204 - "DELETE http://localhost/d1/715/AUTH_381390ecd6d94ec297704a011dd87d6f/customer-dropbox/statement-20200710.zip" "tx17323833852e411696102-005f07e42b" "object-server 20" 0.0007 "-" 19 0
Jul 10 03:44:43 controller0 object-server[7970]: 172.24.4.1 - - [10/Jul/2020:03:44:43 +0000] "DELETE /d1/715/AUTH_381390ecd6d94ec297704a011dd87d6f/customer-dropbox/statement-20200710.zip" 204 - "DELETE http://localhost/v1/AUTH_381390ecd6d94ec297704a011dd87d6f/customer-dropbox/statement-20200710.zip" "tx17323833852e411696102-005f07e42b" "proxy-server 6" 0.0162 "-" 20 0
Jul 10 03:44:43 controller0 container-server[7928]: 172.24.4.1 - - [10/Jul/2020:03:44:43 +0000] "DELETE /d1/777/.expiring_objects/1594352470/1594352552-AUTH_381390ecd6d94ec297704a011dd87d6f/customer-dropbox/statement-20200710.zip" 204 - "-" "-" "direct-client 6" 0.0006 "-" 19 -
Jul 10 03:44:43 controller0 account-server[7931]: 172.24.4.1 - - [10/Jul/2020:03:44:43 +0000] "PUT /d1/720/.expiring_objects/1594352470" 204 - "DELETE http://172.24.4.1:6001/d1/777/.expiring_objects/1594352470" "tx58a6cc1f911d4de5ade04-005f07e42b" "container-server 18" 0.0020 "-" 19 0
Jul 10 03:44:43 controller0 container-server[7925]: 172.24.4.1 - - [10/Jul/2020:03:44:43 +0000] "DELETE /d1/777/.expiring_objects/1594352470" 204 - "DELETE http://localhost/v1/.expiring_objects/1594352470" "tx58a6cc1f911d4de5ade04-005f07e42b" "proxy-server 6" 0.0331 "-" 18 -

After the object has been deleted, the expiry information for the object is also deleted from the .expiring_objects account.

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 storage-compare finish

This concludes the guided exercise.

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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