terraform-module-template

This is a Terraform module to provision SOMETHING.

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Usage

• Run make init to initialize and prepare the project to be used with this template repository.
• Remember to run make hooks after cloning (optional if you ran make init).
• Update .docs/header.md rather than README.md.
• Remove this 'how to use' section from .docs/header.md.
• If this template is used by a third party, make sure to update both the logo file name and the alt attribute in the .docs/header.md file. Additionally, please ensure to modify the README footer. By default, a private gist is used for this purpose. You can make the necessary changes in the .githooks/pre-commit and Makefile files.
• Please ensure to thoroughly review the LICENSE file to confirm that it contains the accurate information.
• Update .docs/header.mdwith a viable example.
• Use the variables.tf file for variable declarations.
• Use the outputs.tf file for output declarations.
• Use the main.tf file for resource, data, and local declarations.
• The context.tf file should be downloaded from https://github.com/cloudposse/terraform-null-label/blob/master/exports/context.tf, DO NOT update that file manually.
• Update the versions.tf file with the correct dependencies.

How to Check If Enabled?

As the enabled variable could be passed directly from the context, use the method below to determine whether the module should be enabled.

locals {
  enabled = module.this.enabled
}

# Do not use `var.enabled` directly.
resource "aws_some_resource" "default" {
  count = local.enabled ? 1 : 0
}

Before you commit

Before committing, always execute the following commands:

terraform fmt
make readme

Tip

If you have installed the Git Hooks, these commands should execute automatically.

Examples

Important

We do not pin modules to versions in our examples because it would be difficult to keep the documentation versions in sync with the latest released versions. We highly recommend that in your code you pin the version to the exact version you are using so that your infrastructure remains stable, and update versions in a systematic way so that they do not catch you by surprise.

module "template" {
  source = "jblab/terraform-module-template/aws"
  # We recommend pinning every module to a specific version
  # version = "x.x.x"

  namespace = "eg"
  stage     = "test"
  name      = "app"

  # Placeholders for example parameters.
}

Requirements

Name	Version
terraform	>= 0.13.0
aws	>= 2.0
null	>= 2.0
template	>= 2.0

Providers

No providers.

Modules

Name	Source	Version
this	cloudposse/label/null	0.25.0

Resources

No resources.

Inputs

Name	Description	Type	Default	Required
additional_tag_map	Additional key-value pairs to add to each map in tags_as_list_of_maps. Not added to tags or id. This is for some rare cases where resources want additional configuration of tags and therefore take a list of maps with tag key, value, and additional configuration.	map(string)	{}	no
attributes	ID element. Additional attributes (e.g. workers or cluster) to add to id, in the order they appear in the list. New attributes are appended to the end of the list. The elements of the list are joined by the delimiter and treated as a single ID element.	list(string)	[]	no
context	Single object for setting entire context at once. See description of individual variables for details. Leave string and numeric variables as null to use default value. Individual variable settings (non-null) override settings in context object, except for attributes, tags, and additional_tag_map, which are merged.	any	{ "additional_tag_map": {}, "attributes": [], "delimiter": null, "descriptor_formats": {}, "enabled": true, "environment": null, "id_length_limit": null, "label_key_case": null, "label_order": [], "label_value_case": null, "labels_as_tags": [ "unset" ], "name": null, "namespace": null, "regex_replace_chars": null, "stage": null, "tags": {}, "tenant": null }	no
delimiter	Delimiter to be used between ID elements. Defaults to - (hyphen). Set to "" to use no delimiter at all.	string	null	no
descriptor_formats	Describe additional descriptors to be output in the descriptors output map. Map of maps. Keys are names of descriptors. Values are maps of the form {<br> format = string<br> labels = list(string)<br>} (Type is any so the map values can later be enhanced to provide additional options.) format is a Terraform format string to be passed to the format() function. labels is a list of labels, in order, to pass to format() function. Label values will be normalized before being passed to format() so they will be identical to how they appear in id. Default is {} (descriptors output will be empty).	any	{}	no
enabled	Set to false to prevent the module from creating any resources	bool	null	no
environment	ID element. Usually used for region e.g. 'uw2', 'us-west-2', OR role 'prod', 'staging', 'dev', 'UAT'	string	null	no
id_length_limit	Limit id to this many characters (minimum 6). Set to 0 for unlimited length. Set to null for keep the existing setting, which defaults to 0. Does not affect id_full.	number	null	no
label_key_case	Controls the letter case of the tags keys (label names) for tags generated by this module. Does not affect keys of tags passed in via the tags input. Possible values: lower, title, upper. Default value: title.	string	null	no
label_order	The order in which the labels (ID elements) appear in the id. Defaults to ["namespace", "environment", "stage", "name", "attributes"]. You can omit any of the 6 labels ("tenant" is the 6th), but at least one must be present.	list(string)	null	no
label_value_case	Controls the letter case of ID elements (labels) as included in id, set as tag values, and output by this module individually. Does not affect values of tags passed in via the tags input. Possible values: lower, title, upper and none (no transformation). Set this to title and set delimiter to "" to yield Pascal Case IDs. Default value: lower.	string	null	no
labels_as_tags	Set of labels (ID elements) to include as tags in the tags output. Default is to include all labels. Tags with empty values will not be included in the tags output. Set to [] to suppress all generated tags. Notes: The value of the name tag, if included, will be the id, not the name. Unlike other null-label inputs, the initial setting of labels_as_tags cannot be changed in later chained modules. Attempts to change it will be silently ignored.	set(string)	[ "default" ]	no
name	ID element. Usually the component or solution name, e.g. 'app' or 'jenkins'. This is the only ID element not also included as a tag. The "name" tag is set to the full id string. There is no tag with the value of the name input.	string	null	no
namespace	ID element. Usually an abbreviation of your organization name, e.g. 'eg' or 'cp', to help ensure generated IDs are globally unique	string	null	no
regex_replace_chars	Terraform regular expression (regex) string. Characters matching the regex will be removed from the ID elements. If not set, "/[^a-zA-Z0-9-]/" is used to remove all characters other than hyphens, letters and digits.	string	null	no
stage	ID element. Usually used to indicate role, e.g. 'prod', 'staging', 'source', 'build', 'test', 'deploy', 'release'	string	null	no
tags	Additional tags (e.g. {'BusinessUnit': 'XYZ'}). Neither the tag keys nor the tag values will be modified by this module.	map(string)	{}	no
tenant	ID element _(Rarely used, not included by default)_. A customer identifier, indicating who this instance of a resource is for	string	null	no

Outputs

No outputs.

Breaking Changes

Please consult BREAKING_CHANGES.md for more information about version history and compatibility.

Contributing

Please read CONTRIBUTING.md for details on the process for contributing to this project.

Be mindful of our Code of Conduct.

Stay in touch

jblab.info     julienbonnier.com     LinkedIn     Twitter