tencent cloud


Basic Syntax

Last updated: 2022-01-14 14:30:41

    Basic Type

    A basic type is simple and not composed of any other types. All basic types in Terraform are represented by the type keyword. Available basic types include:

    • string: represents a Unicode character sequence of some text (such as "hello").
    • number: represents a number, which can be an integer or a decimal.
    • bool: represents a Boolean value, which can be true or false.

    Below is an example:

    id = 123
    vpc_id = "123"
    status = true

    Composite Type

    A composite type is a set of values.

    Collection type

    A collection contains a set of values of the same type:

    • list(...): is a sequence of values identified by consecutive integers starting from 0.
    • map(...): is a set of values, each of which is identified by a string label.
    • set(...): is a set of unique values.

    Structure type

    • object(...): is a custom type that contains its own named attributes.
    • tuple(...): is a sequence of elements identified by consecutive integers starting from 0, where each element has its own type.

    Special type

    • null: an argument set to null is considered not entered. Terraform will automatically ignore the argument and use the default value.
    • any: it is a very special type constraint in Terraform. It is not a type but simply a placeholder. Whenever a value is given a complex type constrained by any, Terraform will try to calculate the most accurate type to replace any.


    Argument assignment means assigning a value to a specific argument, whose name can contain letters, digits, underscores, and hyphens and cannot begin with a digit, such as:

    id = "123"


    A block is a container containing a set of arguments, such as:

    resource "tencentcloud_instance" "foo" {
       tags                                    = {}
       vpc_id                                  = "vpc-5bt2ix8p"


    Terraform supports the following three types of comments:

    • #: a single-line comment followed by the comment content.
    • //: a single-line comment followed by the comment content.
    • /* and */: multi-line comments, which should be across multiple lines.
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