In part one we covered the architecture and design behind the centralized observability solution. In this post, we walk through the practical configuration and provide code snippets to build the first part of the solution: metrics centralization.

CloudWatch cross-account observability (OAM) requires you to designate a monitoring account (or create one). AWS recommends a dedicated monitoring account. In our case, we used the existing Shared Services account where we already run shared services, so we did not use a separate account.