wiki.kamaradski.com

list - [for_each]

kamaradski (kamaradski@undisclosed.example.com) — 2024-10-21T14:37:32+00:00

Lists In Terraform, lists are one of the fundamental data types used to store an ordered collection of values. They are particularly useful when you need to manage multiple items of the same type, such as a list of IP addresses, server names, or AWS availability zones.

terraform

kamaradski (kamaradski@undisclosed.example.com) — 2024-10-21T14:02:38+00:00

terraform variables variable types * Input Variables: These are used to pass dynamic values to Terraform configurations. * Environment Variables: These are used to set values for Terraform commands or to provide sensitive data. * Output Variables: These are used to expose values from a Terraform configuration to be used by other configurations or by external systems.

terraform

kamaradski (kamaradski@undisclosed.example.com) — 2024-10-21T13:53:26+00:00

terraform command cheatsheet run any terraform command with a specific .aws profile name in your awscli config [prod] aws_access_key_id = abcde1234 aws_secret_access_key = abcde1234 [stage] aws_access_key_id = abcde1234 aws_secret_access_key = abcde1234

tuple - created

kamaradski (kamaradski@undisclosed.example.com) — 2024-07-01T10:42:21+00:00

Tuples In Terraform, a tuple is a sequence of values, identified by their order. Tuples are similar to lists, but they are intended to represent a fixed collection of elements where each element can have a different type. Defining Tuples Tuples can be defined using square brackets [] with elements separated by commas. Each element in the tuple can be of a different type.

conditionalexpressionswithvariables - created

kamaradski (kamaradski@undisclosed.example.com) — 2024-07-01T10:34:43+00:00

Conditional Expressions with Variables Terraform supports conditional expressions that can be used to assign variable values based on conditions. variable "environment" { description = "Deployment environment" type = string } resource "aws_instance" "example" { ami = "ami-0c55b159cbfafe1f0" instance_type = var.environment == "production" ? "t2.large" : "t2.micro" }

conditionalexpressionswithvariables - removed

kamaradski (kamaradski@undisclosed.example.com) — 2024-07-01T10:34:35+00:00

defaultvalues - created

kamaradski (kamaradski@undisclosed.example.com) — 2024-07-01T10:34:11+00:00

Default Values Variables can have default values, which are used if no other value is provided. variable "region" { description = "AWS region" type = string default = "us-west-2" }

defaultvalues - removed

kamaradski (kamaradski@undisclosed.example.com) — 2024-07-01T10:34:01+00:00

sensitivevariables - created

kamaradski (kamaradski@undisclosed.example.com) — 2024-07-01T10:33:40+00:00

Sensitive Variables Sensitive variables are used to store sensitive information like passwords. When marked as sensitive, these variables will not be displayed in the console output. variable "db_password" { description = "The password for the database" type = string sensitive = true }

sensitivevariables - removed

kamaradski (kamaradski@undisclosed.example.com) — 2024-07-01T10:33:28+00:00

variablevalidation - created

kamaradski (kamaradski@undisclosed.example.com) — 2024-07-01T10:33:06+00:00

Variable Validation You can add validation rules to ensure that input values meet certain criteria. variable "instance_type" { description = "Type of EC2 instance" type = string default = "t2.micro" validation { condition = contains(["t2.micro", "t2.small", "t2.medium"], var.instance_type) error_message = "Instance type must be one of t2.micro, t2.small, or t2.medium." } }

variablevalidation - removed

kamaradski (kamaradski@undisclosed.example.com) — 2024-07-01T10:32:58+00:00

providingvaluesforvariables - created

kamaradski (kamaradski@undisclosed.example.com) — 2024-07-01T10:32:41+00:00

Providing Values for Variables Values for variables can be provided in several ways: Command-line Flags Use the -var option with terraform apply or terraform plan. terraform apply -var="instance_type=t2.large" Variable Definition Files Define variables in a .tfvars file or .tfvars.json file.

providingvaluesforvariables - removed

kamaradski (kamaradski@undisclosed.example.com) — 2024-07-01T10:32:32+00:00

usingvariablesinconfiguration - created

kamaradski (kamaradski@undisclosed.example.com) — 2024-07-01T10:31:26+00:00

Using Variables in Configuration Variables can be accessed using the var keyword. resource "aws_instance" "example" { ami = "ami-0c55b159cbfafe1f0" instance_type = var.instance_type tags = var.instance_tags }

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kamaradski (kamaradski@undisclosed.example.com) — 2023-03-10T00:45:04+00:00

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kamaradski (kamaradski@undisclosed.example.com) — 2023-03-10T00:45:03+00:00

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kamaradski (kamaradski@undisclosed.example.com) — 2023-03-10T00:45:02+00:00

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kamaradski (kamaradski@undisclosed.example.com) — 2023-03-10T00:45:02+00:00

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kamaradski (kamaradski@undisclosed.example.com) — 2023-03-10T00:45:00+00:00