Summary

We have spent time in this chapter talking a lot about logs and how to work with logs. We started by defining what a log is and the life cycle of the log, which goes from collection, to storage, to analytics. We also talked about the different ways that CloudWatch Logs groups and categorizes logs. There are log groups and log streams. We went on to do a practical demonstration of how to collect logs from an Amazon EC2 instance and send them over to CloudWatch Logs. After that, we moved on to define CloudWatch metrics and talked about how metrics are represented in metric namespaces and metric dimensions. We then explained that metrics are what make logs become more meaningful by drawing out specific insights from the logs that have been collected. Then, we went further to create a simple metric based on the logs that have been collected.

The last part of this chapter was focused on CloudWatch. We defined CloudWatch and the value of using CloudWatch, in that it helps to...