script: add find pod images script

[purelind]

No description provided.

[ti-chi-bot]

I have already done a preliminary review for you, and I hope to help you do a better job.

Based on the pull request title, the changes made in this pull request are adding a new script named "find-all-pod-images.sh" to the /scripts/ops directory of the project. The script can be used to find all the unique images used in the YAML or YML files stored in a specific directory.

The script starts by checking if the correct number of arguments is passed to it. If not, it prints out a usage message and exits. Then it sets the directory and output file variables based on the passed argument values. It uses the find command to find all the YAML/YML files in the provided directory. Then it uses sed commands to extract the image field from the YAML/YML files, remove quotes and whitespaces, and append the result to a temporary file. Finally, it sorts and removes duplicates from the temporary file and saves the unique image names to the output file. The script also prints out the content of the output file and the number of unique images found.

Based on the provided information, it seems like there are no potential problems with the pull request. However, it would be better if the pull request description provided more information about the purpose of adding this script and the benefits it provides.

As for fixing suggestions, it would be better to add some error handling and validation mechanisms to the script. For example, if the provided directory does not exist or the output file cannot be created, the script should provide appropriate error messages and exit with a non-zero exit code. Additionally, it could be beneficial to add some optional arguments to the script to specify whether to include or exclude certain image names or patterns.

[ti-chi-bot]

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