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Add note about valid characters for kubectl create from directory

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Tim Bannister 2023-02-09 14:46:43 +00:00
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content/en/docs/tasks/configure-pod-container/configure-pod-configmap.md
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@ -62,10 +62,19 @@ about a ConfigMap.
You can use `kubectl create configmap` to create a ConfigMap from multiple files in the same
directory. When you are creating a ConfigMap based on a directory, kubectl identifies files
whose basename is a valid key in the directory and packages each of those files into the new
whose filename is a valid key in the directory and packages each of those files into the new
ConfigMap. Any directory entries except regular files are ignored (for example: subdirectories,
symlinks, devices, pipes, and more).
{{< note >}}
Each filename being used for ConfigMap creation must consist of only acceptable characters, which are: letters (`A` to `Z` and `a` to z`), digits (`0` to `9`), '-', '_', or '.'.
If you use `kubectl create configmap` with a directory where any of the file names contains an unacceptable character, the `kubectl` command may fail.
The `kubectl` command does not print an error when it encounters an invalid filename.
{{< /note >}}
Create the local directory:
```shell