Cloud Tagging Strategic Practices

Cloud tagging is the practice of assigning custom names to cloud resources. Cloud tag comprises two – Key and Value. Key for categories and value for metadata

The hype around cloud cost optimization is soaring high along with cloud adoption. According to NASSCOM, enterprises are expected to increase their cloud budget by nearly 5-15% CAGR till FY 2025.

“The wider the cloud adoption, the more complex is the cloud cost management”

Selection, allocation, tracking, and monitoring of the cloud resources that seem simple and manual during the initial cloud adoption stages will turn into a headache when cloud assets number multiplied by hundreds. Millions spent on cloud infrastructure are to be leveraged and every penny should add potential business value.

The Cloud infrastructure management team can make use of “Tagging” as a cloud cost optimization practice and bucket the resources under a tag defining their function in the cloud. This facilitates cloud practitioners to easily call, filter, and organize the resources using their tags.

Even the leading cloud service providers, Microsoft, AWS, and GCP emphasize tagging as the best practice to effectively sort and act as an ally for FinOps. Let’s see in this article,

What is Cloud Tagging?
Benefits of Cloud Tagging
Cloud Tagging best practices
Recommendations

What Is Cloud Tagging?

Cloud tagging is the practice of assigning custom names to cloud resources. Its nomenclature varies from organization to organization based on their teams’ preferences and ease.

Cloud tag comprises two – Key and Value. Key conveys the categories (ex: Environment, Owner) and Value conveys the meta description (ex: Testing, Priya)

Example: Environment: Testing

Key – Environment

Value- Testing

Key and Value can be case-sensitive or insensitive based on the service provider. For example, In AWS, both keys and values are case-sensitive whereas, in Azure, keys are case-insensitive, and values are case-sensitive.

What Are the Benefits of Cloud Tagging?

Enterprises using public cloud assets need a well-thought public cloud tagging of assets, and an inventory model to achieve the highest level of visibility, and utilization, thereby robust mechanisms to ensure minimal wastage.

Structured resource allocation: Enterprises opt for the multi-cloud environment for improved efficiency. Cloud resources procured from different vendors when contributing to a common project can be tagged under one label. In this way, no cloud resources are left unused.

Streamlined governance: Cloud tagging introduces organized cloud resource management in the organization. Cloud infrastructure management personnel tend to lose control of the track of assets while handling multiple workloads deployed in multiple projects. Cloud tagging helps LOB Managers, CIOs, CTOs, and CFOs easily associate and understand resources with their business value, usage frequency, time of operation, and cost.

Team-specific reports generation: It is crucial to identify which team involves which resource to optimize the cloud utilization. Cloud tagging helps to drill down the cloud usage specific to business units. Reports help the engineering team to assess and alter workloads. This further helps the finance team to understand which team consumes more cloud budget and frame solutions along with the other teams to curb the bills.

Aid automation: Automation in the cloud relieves the burden of the cloud team in handling repetitive tasks. In an agile environment, businesses should be able to scale down or up the storage bandwidth, CPU utilization, or change configurations quickly as the demand rises.

Tags allies in automating the actions like sending notifications to cloud engineers on resources that are idle for a given period; automating the storage for a specific environment(testing); automatic decommissioning or provisioning of bulk resources.

Resource access management: Security is still a debating factor in the cloud. Tag-based access control can alleviate data breaches and ensure the confidentiality of sensitive data transacted over the cloud. For example, we can actively allow the developing team to access only the resource with the tag, environment: dev (user-defined tag).

Traceback the roots: CTOs and CIOs report, that finding the source for cloud spending is a daunting task in cloud infrastructure management according to Economic Times. Tagging helps to find the specific team or resource that is critical and runs for a longer duration eating most of the infrastructure budget. Once it is identified, restructuring, or rebuilding the workload brings down the unintended cloud expenditures.

Cloud Tagging Checklist

Even though cloud tagging policies vary from business to business, it’s important to make them standard and globalized across the enterprise. So that it makes sense to every team handling cloud. Defining the rules for cloud tagging during the deployment itself mitigates anomalies in the future.

It’s confidential! – Never include sensitive data to be in the tags.

Why do you need it? – Defining the tagging needs brings better resolution in meta-describing the resources. Stakeholders responsible for handling, maintaining, tracking, and improving the tags should collectively define the use cases and name tags accordingly.

Make it speak for itself – Ensure that the naming convention carries all required information like a business unit, region, unique resource identifier, criticality, etc. enough to help the business team, engineering team, and CXOs in locating, and tracking, and cost optimizing the workloads.

Consistency is the Key– Once the tag schema is developed, it is important to stick to it. The person handling the tags should be cautious while defining, improving, and updating the same in the rules.

Example: Env: nztesting01 is different from Env: testingnz01

Minimum suggested tags– Cloud giants like Azure, GCP, and AWS recommend below as the minimum suggested tags to include for an effective tagging process,

Workload name
Data classification
Operations commitment
Operations team
Cost center
Cluster
Version
App id
Disaster recovery
Service class
Start date of a project
Owner Name
Business unit

Tag naming limits – Have a watch on the character limits before naming your resources. Key-Value character limits vary based on the CSP you choose. For example, the Key character limit is 1-63 with UTF-8 encoding for GCP whereas, it is 1-128 for AWS resources. Key and values should contain only lowercase letters, numeric characters, underscores, and dashes in GCP. Tag keys and values are case-sensitive in AWS.

Review and Revise - At equal intervals or when there is a massive change in the infrastructure review all the tags and revise as it may end up as a disaster like finding a needle in the ocean.

Tagging Recommendations:

1. It is better for cloud practitioners to name resources before deploying them into the services or app or any other function. Include at least five fields in their naming convention for easy identification and filtering

2. Add multiple tags to one resource. It can accompany multiple filters for fetching the exact resource utilization and cost data.

Examples,

Owner: Priya (person responsible for the resource)

Platform id: AZR

Region: AU (Australia)

Zone: E (East)

Now getting comprehensive reports on the unused, under-utilized, and over-provisioned resources are simple, and critical business decisions like infrastructure budgeting, engineering talent planning, etc. are effective.

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