haydenzhourepo commented on a change in pull request #5093:
URL:
https://github.com/apache/incubator-dolphinscheduler/pull/5093#discussion_r598068486
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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 is the constraints of ubuntu OS above. different Linux OS have
different constraints of username.
We can give the strictest rules to fit all of those different OS. which
refers to
https://stackoverflow.com/questions/6949667/what-are-the-real-rules-for-linux-usernames-on-centos-6-and-rhel-6
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