Tooling

Question 1

How can you ensure consistent configuration across multiple servers?

Answer 1

Puppet, Ansible, Chef, CloudInit Scripts, Packer, etc. Configuration management tools

Question 2

Can you name two configuration management tools and name one high level difference?

Answer 2

Puppet is more of a configuration management tool. Ansible is more of a provisioning, configuration and deployment tool.

Question 3

What is IaaS?

Answer 3

Infrastructure as a service: is a form of cloud computing that provides virtualised computing resources over the internet.

Question 4

What is IaC?

Answer 4

• the management of infrastructure in a descriptive model
• generates the same environment every time it is applied

Question 5

What is Graphite?

Answer 5

A tool that monitors and graphs numeric time-series data such as the performance of computer systems

Question 6

How does Graphite work?

Answer 6

Client sends data to carbon caches. The data is then stored/cataloged in the filesystem using time-series database called whisper

Question 7

What is Terraform?

Answer 7

A tool for building, changing, and versioning infrastructure safely and efficiently

Question 8

How does Terraform work?

Answer 8

Terraform generates an execution plan describing what it will do to reach the desired state, and then executes it to build the described infrastructure.

Question 9

What is Puppet?

Answer 9

A configuration management tool.

Question 10

How does Puppet work?

Answer 10

• declarative provisioning (classes, manifests)

* agent-master relationship