Book Image

AWS Certified DevOps Engineer - Professional Certification and Beyond

By : Adam Book
Book Image

AWS Certified DevOps Engineer - Professional Certification and Beyond

By: Adam Book

Overview of this book

The AWS Certified DevOps Engineer certification is one of the highest AWS credentials, vastly recognized in cloud computing or software development industries. This book is an extensive guide to helping you strengthen your DevOps skills as you work with your AWS workloads on a day-to-day basis. You'll begin by learning how to create and deploy a workload using the AWS code suite of tools, and then move on to adding monitoring and fault tolerance to your workload. You'll explore enterprise scenarios that'll help you to understand various AWS tools and services. This book is packed with detailed explanations of essential concepts to help you get to grips with the domains needed to pass the DevOps professional exam. As you advance, you'll delve into AWS with the help of hands-on examples and practice questions to gain a holistic understanding of the services covered in the AWS DevOps professional exam. Throughout the book, you'll find real-world scenarios that you can easily incorporate in your daily activities when working with AWS, making you a valuable asset for any organization. By the end of this AWS certification book, you'll have gained the knowledge needed to pass the AWS Certified DevOps Engineer exam, and be able to implement different techniques for delivering each service in real-world scenarios.
Table of Contents (31 chapters)
1
Section 1: Establishing the Fundamentals
7
Section 2: Developing, Deploying, and Using Infrastructure as Code
16
Section 3: Monitoring and Logging Your Environment and Workloads
21
Section 4: Enabling Highly Available Workloads, Fault Tolerance, and Implementing Standards and Policies
27
Section 5: Exam Tips and Tricks

Using VPC Flow Logs

Flow logs help you capture information regarding the IP traffic going in and out of the network interfaces of your Virtual Private Cloud (VPC). Once this data has been captured, it can be written to either an S3 bucket or pushed out to a CloudWatch log group.

Once a flog log group has been created and has started writing logs, the logs do not appear immediately. It can take up to 5 minutes for the logs to appear in either the S3 bucket or the log group:

Figure 16.9 – VPC Flow Logs traveling to and from different sources

Flow logs can be created for network interfaces. These include the network interface of a VPC itself or even other services that contain network interfaces, such as the following:

  • Elastic Load Balancers
  • Amazon RDS databases
  • Amazon ElastiCache caches
  • Amazon Redshift databases
  • Amazon WorkSpaces
  • Transit Gateway
  • NAT Gateway

Now that we understand what VPC Flow Logs are...