Tags & Meta Data

Feature: Tags

Tags are customer defined and can be any string. These strings can be added to most resource types, they can then be searched on, used in the dashboard to filter widgets and referred to in policies.
An example use of tags is to “tag” certain VMs as “production” and then create a widget that just views all “production” virtual machines.

Adding / Removing tags on resources

Customer tags can be added/removed to resources in two ways:
  • Explicitly setting the list of tags for a given resource

  • Adding/removing a tag to/from a list of resources

In both cases if new tags are specified a new tag is created and if the last instance of a tag is deleted the tag is removed implicitly.

Maxims


Item Value

Maximum number of tags on a single resource

Unlimited

Maximum length of a tag

64 characters

Feature: Meta data

Meta data is the next step on from tagging. Basically meta data key value pairs are tags with context.

Tags: Production, Db Server

vs

Meta Data:  { environment: Production, role:DB Server }

Meta data is the next step on from tagging. Basically meta data key value pairs are tags with context.

Key Example Value Description
environment production  
role Web Server  
owner Fred Bloggs

The person who knows more details about the resource and if it’s needed

reason Testing new feature in development

A textual description of why the resource was created - useful on resources that are short lived

expiry 2015-11-01 22:45

When the resource is flagged up as a candidate for recycling

As with tags meta data can be set in two ways, on a per resource basis or on the bulk setting screen.


Maxims


Item Value

Maximum number of meta data key/value pairs on a single resource

Unlimited

Maximum length of a meta data key

128 characters

Maximum length of a meta data value

10kb

Maximum number of name spaces for meta data on a given resource

Unlimited

Feature: Bulk setting

The system provides a way for the user to filter a list of resources (based on any existing attribute, tag or meta data) and then apply new tags and meta data.