How to Fix: Ansible check mode giving error on copy task

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Ansible playbook error in check mode when copying files to control node and then remote node.

The Problem

Ansible's copy module may fail to transfer files when running in check mode due to the fact that the file is not actually copied to the destination during this phase. This can be caused by the use of the fetch module before the copy module, which retrieves the file but does not create a local copy on the Ansible control node.This issue can be frustrating because it prevents the playbook from completing successfully in check mode. To resolve this issue, you will need to modify your playbook to ensure that files are copied to the destination before attempting to access them.
🔍 Why This Happens

                The primary reason for this error is that Ansible's copy module requires a local copy of the file on the destination node in order to access it. When running in check mode, Ansible does not create this local copy, resulting in an error when attempting to access the file.An alternative reason for this error may be due to the fact that the `fetch` module is used before the `copy` module. This can cause Ansible to retrieve the file but not create a local copy on the control node.

            🔧 Proven Troubleshooting Steps

                Modifying the playbook to ensure files are copied before accessing them

                    Step 1: Modify the playbook to move the `fetch` task above the `copy` task. This ensures that the file is retrieved and copied to the destination before attempting to access it.Step 2: Update the `copy` task to use the `remote_src` option, which allows Ansible to access the file on the remote node without requiring a local copy on the control node. However, be aware that using this option may result in security risks if not used properly.



                Using an alternative method to retrieve files

                    Step 1: Use the `get_url` module instead of the `fetch` module to retrieve files from a URL. This can be especially useful when working with remote repositories or downloading files from the internet.Step 2: Note that using the `get_url` module may require additional configuration and setup, such as specifying the correct protocol, username, and password.


            💡 Conclusion
            By modifying your playbook to ensure files are copied before accessing them or using an alternative method to retrieve files, you can resolve the Ansible copy module error when running in check mode.

Full step-by-step guide with screenshots: Read the complete fix here

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