Errata

Argo CD: Up and Running

Errata for Argo CD: Up and Running

Submit your own errata for this product.

The errata list is a list of errors and their corrections that were found after the product was released. If the error was corrected in a later version or reprint the date of the correction will be displayed in the column titled "Date Corrected".

The following errata were submitted by our customers and approved as valid errors by the author or editor.

Color key: Serious technical mistake Minor technical mistake Language or formatting error Typo Question Note Update

Version Location Description Submitted By Date submitted Date corrected
O'Reilly learning platform
Page Chapter 6 - Local Users
Code block below paragraph that begins with "Similar to the admin user, the first step that should be taken"

Command does not run as written because non-hyphen character is used. Runs when character is corrected to `-`.

 Matt Welke  Sep 16, 2025  Dec 05, 2025
O'Reilly learning platform
Page Chapter 6 - Disabling Users
Code block below "The ConfigMap can also be updated directly using kubectl by performing the following command"

Command as written does not run because `’` character is used instead of `'` character. Commands works when character corrected.

 Matt Welke  Sep 16, 2025  Dec 05, 2025
O'Reilly learning platform
Page Chapter 6 - Disabling Users
Code block below "This action can also be performed using kubectl by executing the following command"

Command as written does not run because of character `'` missing from the end of the command. Works when char added.

 Matt Welke  Sep 16, 2025  Dec 05, 2025
O'Reilly learning platform
Page Section 5. Synchronizing Applications
Last paragraph in "Managing How Applications Are Synchronized" section

The paragraph indicates that "Regardless of the option chosen (either manual or automated), as soon as the source content differs from the live state of the cluster, the application will be synchronized".
However, this is incorrect because ArgoCD will mark the application as "OutOfSync" but will not automatically synchronize unless specifically configured to do so.

Note from the Author or Editor:
This is half correct. I think we can make it better by modifying it to:

"Regardless of the option chosen, once autosync is enabled, as soon as the source content differs from the live state of the cluster, the application will be synchronized."

 Juan Cruz  Nov 12, 2025  Dec 05, 2025
PDF
Page 56
Last paragraph

The world posttasks at the end of the last paragraph is incorrect. This should be post-tasks.

 Daniel Venturini  Sep 28, 2025  Dec 05, 2025
PDF
Page 62
Section Argo CD Application Overview

The YAML Application defined on Argo CD Application Overview section does not work at all because the Mysql deployment has missing and required environment variable. In order to fix this issue, a pull request was opened on sabre1041/argocd-up-and-running-book/pull/3/.

Note from the Author or Editor:
Pull request confirmed and updated on GitHub as of November 3, 2025.

 Daniel Venturini  Oct 06, 2025  Nov 03, 2025
PDF
Page 201
first sentence in the last paragraph

"It is important to note that even though parameters are exposed to the ," missing something before the comma?

Note from the Author or Editor:
A missing "UI" again, which has been corrected in the final book on 6/16.

"even though parameters are exposed to the UI"

 Chance Chen  Jun 19, 2025  Jun 16, 2025
PDF
Page 202
1st sentence in the 1st paragraph in the section "User Interface Customization"

"One of the primary reasons why Argo CD has gained such popularity in the Kuber‐
netes community is due to its rich ." do you want to say "rich interface"?

Also, the 3rd sentence in the same paragraph, "In order to enable further productivity with the ," is there anything missing after "the"?

Note from the Author or Editor:
This is corrected in the final book:

"due to its rich UI"

"to enable further productivity with the UI"

 Chance Chen  Jun 19, 2025  Jun 16, 2025