Photo by Angie Muldowney on Unsplash
To pass this domain, you'll need to know the following:
- Determine how to set up the aggregation, storage, and analysis of logs and metrics
- Apply concepts required to automate monitoring and event management of an environment
- Apply concepts required to audit, log, and monitor operating systems, infrastructures, and applications
- Determine how to implement tagging and other metadata strategies
This domain is 15% of the overall mark for the exam.
According to the AWS Whitepapers for DevOps we should look at the following documents:
- CloudWatch - Complete visibility of your cloud resources and applications. Chances are if you provision a resource (well at least through the Console), it's probably logging in CloudWatch.
- AWS X-Ray - Analyze and debug production, distributed applications. Similar products are Rollbar, Sentry, Azure Application Insights.
If you have the time, by all means, read the User Guides, but they are usually a couple of hundred pages. Alternatively, get familiar with the services using the FAQs:
You're all expected to know the APIs
- AWS X-Ray. There's specific APIs for the Java, .Net (and Core), Ruby, Node and Python SDKs.
Before you panic, you'll start to spot a pattern with the API verbs.
And the CLI commands
- CloudWatch. This is for the command that is part of the AWS CLI. The standalone CloudWatch CLI has been deprecated.
There's no CLI for X-ray
As with the API, there are patterns to the commands.
Monitoring and logging are what DevOps engineers do on a daily basis. We use the data from our logs to spot patterns, and the monitoring alerts to react to issues and mitigate outages.
It's not the most exciting topic to cover, it's a necessity for the role. I hope in future versions of the exam, this domain extends to Observability.
This domain contains the fewest services, but make no mistake CloudWatch integrates with so many services it makes sense to have a good understanding of the features it provides. AWS X-Ray if you've used similar products, should be an easier concept to grasp (famous last words).
Unsplash path (what terms I used to get to the cover image): monitoring (meh), logging
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