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Ask HN: DNS naming conventions for cloud environments
9 points by bndw 6 days ago | hide | past | web | favorite | 1 comment
- What sort of naming conventions do you use for your cloud environments?

- How do names correlate to environment (dev, staging, prod, etc), region (us-west-2, etc) and so on?

- How do you scope non-prod environment sub domains to reduce collision with business/product subdomains (e.g. marketing might want to use stage.example.com)?

For example:

- staging.example.com points to a load balancer for staging workloads

- the request is routed to us-west-2.staging.example.com via a geolocation routing policy (closest region to the user)

- us-west-2.staging.example.com load balancer proxies the request to the backend workload(s)

In the organisations I have worked, we have normally done something like this:

- <environment>-<component>-<application>.<application-portfolio/team>-<tenancy>.<hosting-environment>.<business_name>.com

This allowed us to delegate hosted zones to the application teams to self-manage their dns.

Example, the hosted zone:

- marketing-nonprod.aws.example.com

Would appear as a hosted zone in the Marketing, Non-Production aws account. Note that we track the "Tenancy Environment", i.e. whether it's a prod/non-prod/labs. This will map to multiple application environments, e.g. UAT/INT/etc will be under non-prod.

Then an application like:

- prod-web-app.marketing-prod.aws.example.com

could have a cname to:

- app.example.com

Which we would handle as a one-off service request to the central DNS management team (often dealing with things like Akemai at that stage).

If the application stack required multi-regionality, we could added a regional identifier into the application name.

My approach is overkill in many orgs. Many of these issues are made simpler through mechanisms like service discovery.

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