Tag topology
Last updated
Last updated
This page describes StackState version 4.2.
The StackState 4.2 version range is End of Life (EOL) and no longer supported. We encourage customers still running the 4.2 version range to upgrade to a more recent release.
Tags (also known as labels) are a way of associating names with topology so it can be filtered.
Below are StackState's tagging restrictions, requirements, and suggestions:
Tags must start with a letter and after that may contain the characters listed below:
Alphanumerics
Underscores
Minuses
Colons
Periods
Slashes
Other special characters are converted to underscores.
Note: A tag cannot end with a colon, for example tag:
Tags can be up to 200 characters long and support Unicode.
Tags are converted to lowercase. Therefore, CamelCase tags are not recommended.
A tag can be in the format value or <KEY>:<VALUE>. For optimal functionality, we recommend constructing tags in the <KEY>:<VALUE> format. Commonly used tag keys are env, instance, and name. The key always precedes the first colon of the global tag definition, for example:
| Tag | Key | Value |
|---|---|---|
Tags shouldn't originate from unbounded sources, such as EPOCH timestamps, user IDs, or request IDs. Doing so may infinitely increase the number of tags in StackState.
Tags may be assigned using any (or all) of the following methods.
The hostname (tag key host) is assigned automatically by the StackState Agent. To customize the hostname, use the Agent configuration file, stackstate.yaml:
The Agent configuration file (stackstate.yaml) is also used to set host tags which apply to all data forwarded by the StackState Agent (see YAML formats below).
Tags for the integrations installed with the Agent are configured via YAML files located in the conf.d directory of the Agent install.
YAML formats
In YAML files, use a tag dictionary with a list of tags you want assigned at that level. Tag dictionaries have two different yet functionally equivalent forms:
or
It is recommended you assign tags as <KEY>:<VALUE> pairs, but simple tags are also accepted.
The most efficient method for assigning tags is to rely on your StackPacks. Tags assigned to your Amazon Web Services components, Azure components, and more are all automatically assigned to the topology when they are brought into StackState.
After you have assigned tags at the host and integration level, start using them to create views.
| Method | Assign tags |
|---|---|
customer:US:acme
customer
US:acme
customer:acme
customer
acme
Configuration Files
Manually in your main agent configuration files, or in your integrations configuration file.
StackPack Inheritance
Automatically with supported StackPacks after setup