chengshiwen commented on a change in pull request #5093:
URL:
https://github.com/apache/incubator-dolphinscheduler/pull/5093#discussion_r597661381
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File path:
dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/utils/RegexUtils.java
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@@ -30,6 +30,8 @@
*/
private static final String CHECK_NUMBER = "^-?\\d+(\\.\\d+)?$";
+ private static final String LINUX_USERNAME_PATTERN =
"[a-z_][a-z\\d_]{0,30}";
Review comment:
This regular expression pattern is not correct.
`[a-zA-Z0-9_.][a-zA-Z0-9_.-]*[$]?` should be used by `man useradd` and it has
better compatibility.
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