oam/knowledge base/cloud computing/aws

Amazon Web Services

1. Constraints
2. Further readings
   1. Sources

Constraints

data type	component	summary	description	type	length	pattern	required
tag	key	Required name of the tag	The string value can be Unicode characters and cannot be prefixed with "aws:". The string can contain only the set of Unicode letters, digits, white-space, _,' ., /, =, +, -, :, @ (Java regex: ^([\\p{L}\\p{Z}\\p{N}_.:/=+\\-]*)$)	String	1 to 128	^([\p{L}\p{Z}\p{N}_.:/=+\-@]*)$	Yes
tag	value	The optional value of the tag.	The string value can be Unicode characters. The string can contain only the set of Unicode letters, digits, white-space, _, ., /, =, +, -, :, @ (Java regex: ^([\\p{L}\\p{Z}\\p{N}_.:/=+\\-]*)$")	String	0 to 256	^([\p{L}\p{Z}\p{N}_.:/=+\-@]*)$	Yes

Further readings

Sources

• Constraints for tags