CFN(CloudFormation) Intro
- A tool helps you create, delete, updating infrastructures using template
- Written in YAML and JSON
- The deletion of a stack would delete all resources created by this stack
- Structure diagram:
when a template is submitted to cloud formation, it creates a stack which contains all logical resources, and then, stack makes physical resources based on logical resources
CW(CloudWatch) Intro
It is a public service
CW perform 3 main jobs:
- Metrics- collection, monitoring of metrics on AWS products, app. Some collection could be done natively, some need CloudWatch Agent, on APS products, Apps, on-premises
- CloudWatch Logs - collection, monitoring based on logging data, on APS products, Apps, on-premises
- CloudWatch Events - 1. generate event to do something in certain time 2. if an event happened, it generates another event to do some actions, on AWS services, AWS schedules
A metric is a set of time ordered data
Example of a CPU utilization metric:
Alarm could be created based on a metric, there are 3 states of alarm: OK, ALARM, INSUFFICIENT_DATA:
Dimension is used to separate datapoints for different things or perspectives within the same metric:
Shared Responsibility Model
AWS is responsible for the security of the cloud
Customer is responsible for the security in the cloud
Diagram(ex):
