github-webhook

This component provisions a GitHub webhook for a single GitHub repository.

You may want to use this component if you are provisioning webhooks for multiple ArgoCD deployment repositories across GitHub organizations.

Usage

Stack Level: Regional

Here's an example snippet for how to use this component. This example pulls the value of the webhook from remote-state

components:
  terraform:
    webhook/cloudposse/argocd:
      metadata:
        component: github-webhook
      vars:
        github_organization: cloudposse
        github_repository: argocd-deploy-non-prod
        webhook_url: "https://argocd.ue2.dev.plat.cloudposse.org/api/webhook"

        remote_state_github_webhook_enabled: true # default value added for visibility
        remote_state_component_name: eks/argocd

SSM Stored Value Example

Here's an example snippet for how to use this component with a value stored in SSM

components:
  terraform:
    webhook/cloudposse/argocd:
      metadata:
        component: github-webhook
      vars:
        github_organization: cloudposse
        github_repository: argocd-deploy-non-prod
        webhook_url: "https://argocd.ue2.dev.plat.cloudposse.org/api/webhook"

        remote_state_github_webhook_enabled: false
        ssm_github_webhook_enabled: true
        ssm_github_webhook: "/argocd/github/webhook"

Input Value Example

Here's an example snippet for how to use this component with a value stored in Terraform variables.

components:
  terraform:
    webhook/cloudposse/argocd:
      metadata:
        component: github-webhook
      vars:
        github_organization: cloudposse
        github_repository: argocd-deploy-non-prod
        webhook_url: "https://argocd.ue2.dev.plat.cloudposse.org/api/webhook"

        remote_state_github_webhook_enabled: false
        ssm_github_webhook_enabled: false
        webhook_github_secret: "abcdefg"

ArgoCD Webhooks

For usage with the eks/argocd component, see Creating Webhooks with github-webhook in that component's README.

Variables

Required Variables

github_organization (string) required: The name of the GitHub Organization where the repository lives
github_repository (string) required: The name of the GitHub repository where the webhook will be created
region (string) required: AWS Region.
webhook_url (string) required: The URL for the webhook

Optional Variables

github_base_url (string) optional

This is the target GitHub base API endpoint. Providing a value is a requirement when working with GitHub Enterprise. It is optional to provide this value and it can also be sourced from the GITHUB_BASE_URL environment variable. The value must end with a slash, for example: https://terraformtesting-ghe.westus.cloudapp.azure.com/

Default value: null

github_token_override (string) optional

Use the value of this variable as the GitHub token instead of reading it from SSM

Default value: null

remote_state_component_name (string) optional

If fetching the Github Webhook value from remote-state, set this to the source component name. For example, eks/argocd.

Default value: ""

remote_state_github_webhook_enabled (bool) optional

If true, pull the GitHub Webhook value from remote-state

Default value: true

ssm_github_api_key (string) optional

SSM path to the GitHub API key

Default value: "/argocd/github/api_key"

ssm_github_webhook (string) optional

Format string of the SSM parameter path where the webhook will be pulled from. Only used if var.webhook_github_secret is not given.

Default value: "/github/webhook"

ssm_github_webhook_enabled (bool) optional

If true, pull the GitHub Webhook value from AWS SSM Parameter Store using var.ssm_github_webhook

Default value: false

webhook_github_secret (string) optional

The value to use as the GitHub webhook secret. Set both var.ssm_github_webhook_enabled and var.remote_state_github_webhook_enabled to false in order to use this value

Default value: ""

Context Variables

The following variables are defined in the context.tf file of this module and part of the terraform-null-label pattern.

additional_tag_map (map(string)) optional

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.

Required: No

Default value: { }

attributes (list(string)) optional

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.

Required: No

Default value: [ ]

context (any) optional

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.

Required: No

Default value:

{
  "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
}

delimiter (string) optional

Delimiter to be used between ID elements.
Defaults to - (hyphen). Set to "" to use no delimiter at all.

Required: No

Default value: null

descriptor_formats (any) optional

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).

Required: No

Default value: { }

enabled (bool) optional

Set to false to prevent the module from creating any resources
Required: No

Default value: null

environment (string) optional

ID element. Usually used for region e.g. 'uw2', 'us-west-2', OR role 'prod', 'staging', 'dev', 'UAT'
Required: No

Default value: null

id_length_limit (number) optional

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.

Required: No

Default value: null

label_key_case (string) optional

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.

Required: No

Default value: null

label_order (list(string)) optional

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.

Required: No

Default value: null

label_value_case (string) optional

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.

Required: No

Default value: null

labels_as_tags (set(string)) optional

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.

Required: No

Default value:

[
  "default"
]

name (string) optional

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.

Required: No

Default value: null

namespace (string) optional

ID element. Usually an abbreviation of your organization name, e.g. 'eg' or 'cp', to help ensure generated IDs are globally unique
Required: No

Default value: null

regex_replace_chars (string) optional

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.

Required: No

Default value: null

stage (string) optional

ID element. Usually used to indicate role, e.g. 'prod', 'staging', 'source', 'build', 'test', 'deploy', 'release'
Required: No

Default value: null

tags (map(string)) optional

Additional tags (e.g. {'BusinessUnit': 'XYZ'}).
Neither the tag keys nor the tag values will be modified by this module.

Required: No

Default value: { }

tenant (string) optional

ID element (Rarely used, not included by default). A customer identifier, indicating who this instance of a resource is for
Required: No

Default value: null

Dependencies

Requirements

terraform, version: >= 1.0.0
aws, version: >= 4.0
github, version: >= 4.0

Providers

aws, version: >= 4.0
github, version: >= 4.0

Modules

Name	Version	Source	Description
`iam_roles`	latest	`../account-map/modules/iam-roles`	n/a
`source`	1.5.0	`cloudposse/stack-config/yaml//modules/remote-state`	This can be any component that has the required output, `github-webhook-value` This is typically eks/argocd
`this`	0.25.0	`cloudposse/label/null`	n/a

Resources

The following resources are used by this module:

github_repository_webhook.default (resource)

Data Sources

The following data sources are used by this module:

aws_ssm_parameter.github_api_key (data source)
aws_ssm_parameter.webhook (data source)

References

cloudposse/terraform-aws-components - Cloud Posse's upstream components

Usage​

SSM Stored Value Example​

Input Value Example​

ArgoCD Webhooks​

Variables​

Required Variables​

Optional Variables​

Context Variables​

Dependencies​

Requirements​

Providers​

Modules​

Resources​

Data Sources​

References​

Usage

SSM Stored Value Example

Input Value Example

ArgoCD Webhooks

Variables

Required Variables

Optional Variables

Context Variables

Dependencies

Requirements

Providers

Modules

Resources

Data Sources

References