在用户数据脚本中设置端口时,最好使用相同的输入变量。要在字符串文字中使用变量引用,需要通过一种被称为插值(interpolation)的表达式,其语法如下。 用户可以在花括号中放置任何有效的变量引用,Terraform会把它转换为字符串。例如,使用以下方法可以将var.server_port的取值作为字符串插入到用户数据中。 Terraform还允许通...
String concatenation and interpolationin HashiCorp Terraform is straightforward but becomes more versatile when combined with functions. Let’s look at an example where we dynamically construct a resource name by embedding function calls within the expression. Constructing a Resource Name Imagine you need ...
String interpolation is used in place of concatenation to combine values for names and other items. You can reference the properties of a resource directly by using its symbolic name instead of complex reference statements. Modules: You can break down complex deployments into smaller submodules and...
Built-in functions and string interpolations are present in Terraform, making it more available with conditional statements. The conditional loops present to make the application design the Infrastructure based on the service providers making it visually appealing while in the execution phase. The functi...
String literals are the most complex kind of literal expression in Terraform, and have their own page of documentation. SeeStringsfor information about escape sequences, the heredoc syntax, interpolation, and template directives. Numbers Numbers are represented by unquoted sequences of digits with or...
The string interpolation syntax${ ... }has been part of Terraform since its initial release in 2015. This continues to work in Terraform 0.12, but is now extended to include support for conditionals andforexpressions. These new features are most useful within multi-line strings: ...
You resolved the invalid character and expression errors, and they don't appear again. Terraform parses"${var.name}-learn"as your variable name in the interpolation shorthand with the hardcoded-learnstring appended to form a custom value. ...
Example: String Interpolation with Terraform Locals # Declare a local variable for the resource name locals { resource_name = "my-resource" } # Create an Azure Resource Group with a dynamically generated name resource "azurerm_resource_group" "example" { ...
在该字符串中,您可以使用 interpolation 来替换变量。会是这样的: variable "prefix_arn" { description = "Description..." type = string } resource "aws_cloudwatch_event_rule" "cloudwatch_rule" { name = "${var.target_env}-cloudfront-rule" description = "it will trigger the lambda function." ...
console Interactive console for Terraform interpolations # ... 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 如果你遇到一个terraform 未找到的错误,(因为)你的PATH环境变量没有设置正确。请回去检查确保你的PATH环境变量包含你terraform的安装目录。