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Provision monitors and alerts with Terraform

Published : Sep 27, 2023
NOT ON THE CURRENT EDITION
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Sep 2023
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Infrastructure as code (IaC) is now a widely accepted approach for defining and provisioning hosting environments. Even with the continual evolution of tools and techniques in this area, Terraform continues to be the dominant tool for doing IaC on cloud-native resources. However, most hosting environments today are complex combinations of cloud vendor–native services, third-party services and custom code. In these environments, we've found that engineers often resort to a mixture of Terraform for cloud resources and custom scripts for the rest. This can lead to a lack of consistency and repeatability in the provisioning process. In fact, many of the third-party services that are commonly used in hosting environments — including Splunk, Datadog, PagerDuty and New Relic — have Terraform providers that you can use to provision and configure these services. That's why we recommend that, in addition to cloud resources, teams also provision monitors and alerts with Terraform. This leads to IaC with better modularity that is easier to understand and maintain. As with all IaC, there is a risk of introducing inconsistencies when the configuration is changed via other interfaces. To ensure that the Terraform code remains the source of truth, we recommend you disable configuration changes via user interfaces and APIs.

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