Aws Terraform Flashcards
A List data type must have all
Records of the same data type
Eval precedence (6)
TF_VAR_environment variable
.tfvars || .tfvars.json
.auto.tfvars || .auto.tfvars.json
-var-file flag
-var flag
CLI
Primitive data types in terraform
String
Number
Boolean
Collection data types in terraform
List
Ordered
Map
Key: value
Set
Unordered
Must all have same data type
Structural data type
Can mix data types
Tuple
Like list
Object
Like map
How to Stay on major version with
~>4.0
Will stay on version 4 release
Where are terraform tokens stored for login?
By default API tokens are stored in plain text in a local cli configuration called credentials.tfrc.json
What is infrastructure as code?
Written configuration script to automate creating, updating, and destroying cloud infrastructure.
Blueprint of your iac
Allows to easily share, version, inventory cloud infrastructure.
What are 3 declarative IsC tools?
Terraform
ARM Templates
Cloud Formation
Which is less verbose and could end up with misconfiguration
Imperative
YAML, JSON, XML
Is declarative
How to detect drift
Storing expected state in terraform state file
Allows you to execute commands on a target resource after a response is provisioned
Remote-exec
3 modes of remote-exec
Inline: list of command strings
Script: relative or absolute local script that will be copied to a remote resource and executed
Scripts: same as above but many
File provisioner
Copy files or directories from local machine to newly created one.
