Tagging Datadog resources
In the previous sections of this chapter, we have touched upon the concept of tags as a means of grouping and filtering metrics. While the use of tags is similar to that of keywords, labels, or hashtags on other systems, it is important to learn how tags are applied to metrics. Tags can be applied to other Datadog resources such as events and monitors as well. However, we will focus on how they are applied and used while working with metrics in the following section.
Defining tags
The following are the main rules and best practices for defining a tag:
- A tag should start with a letter and can contain the following characters: alphanumeric, underscores, minuses, colons, periods, and slashes.
- A tag should be in lowercase letters. If uppercase letters are used, they will be converted into lowercase. The auto-conversion of the case can create confusion, and so it is advisable to define tags only in lowercase.
- A tag can be up to 200 characters...