Terraform Functions and Conditional Expressions

Links: 113 Terraform Index

Functions¶

Some of the common functions are
- file: read data from a file
- length: determine the number of elements in a list or map
- toset: convert a list to a set
We can test functions using an interactive console.
- We can use the terraform console using terraform console
- Terraform console loads the state associated to the configuration directory by default.
- It also loads variables in the configuration files.
Numeric functions
- Expansion is needed when using variables.
String functions
- split is used to split a string based on the separator. It returns a list.
- join is used to convert a list to a string.
List functions
- contains is case sensitive
Map functions
- We can provide a default argument to the lookup function

Assigning value to a variable based on condition
- Generating a random password of atleast 8 characters where length of password comes from the user.

Last updated: 2023-01-14