Upgraded module to support Terraform 0.12

.chglog/CHANGELOG.tpl.md

@@ -0,0 +1,51 @@
+{{ if .Versions -}}
+<a name="unreleased"></a>
+## [Unreleased]
+{{ if .Unreleased.CommitGroups -}}
+{{ range .Unreleased.CommitGroups -}}
+### {{ .Title }}
+{{ range .Commits -}}
+- {{ if .Scope }}**{{ .Scope }}:** {{ end }}{{ .Subject }}
+{{ end }}
+{{ end -}}
+{{ else }}
+{{ range .Unreleased.Commits -}}
+- {{ if .Scope }}**{{ .Scope }}:** {{ end }}{{ .Subject }}
+{{ end }}
+{{ end -}}
+{{ end -}}
+
+{{ range .Versions }}
+<a name="{{ .Tag.Name }}"></a>
+## {{ if .Tag.Previous }}[{{ .Tag.Name }}]{{ else }}{{ .Tag.Name }}{{ end }} - {{ datetime "2006-01-02" .Tag.Date }}
+{{ if .CommitGroups -}}
+{{ range .CommitGroups -}}
+### {{ .Title }}
+{{ range .Commits -}}
+- {{ if .Scope }}**{{ .Scope }}:** {{ end }}{{ .Subject }}
+{{ end }}
+{{ end -}}
+{{ else }}
+{{ range .Commits -}}
+- {{ if .Scope }}**{{ .Scope }}:** {{ end }}{{ .Subject }}
+{{ end }}
+{{ end -}}
+
+{{- if .NoteGroups -}}
+{{ range .NoteGroups -}}
+### {{ .Title }}
+{{ range .Notes }}
+{{ .Body }}
+{{ end }}
+{{ end -}}
+{{ end -}}
+{{ end -}}
+
+{{- if .Versions }}
+[Unreleased]: {{ .Info.RepositoryURL }}/compare/{{ $latest := index .Versions 0 }}{{ $latest.Tag.Name }}...HEAD
+{{ range .Versions -}}
+{{ if .Tag.Previous -}}
+[{{ .Tag.Name }}]: {{ $.Info.RepositoryURL }}/compare/{{ .Tag.Previous.Name }}...{{ .Tag.Name }}
+{{ end -}}
+{{ end -}}
+{{ end -}}

.chglog/config.yml

@@ -0,0 +1,10 @@
+style: github
+template: CHANGELOG.tpl.md
+info:
+  title: CHANGELOG
+  repository_url: https://github.com/terraform-aws-modules/terraform-aws-notify-slack
+options:
+  header:
+    pattern: "^(.*)$"
+    pattern_maps:
+      - Subject

.pre-commit-config.yaml

@@ -1,10 +1,10 @@
 repos:
 - repo: git://github.com/antonbabenko/pre-commit-terraform
-  rev: v1.7.3
+  rev: v1.12.0
   hooks:
     - id: terraform_fmt
-    - id: terraform_docs
+#    - id: terraform_docs
 - repo: git://github.com/pre-commit/pre-commit-hooks
-  rev: v1.3.0
+  rev: v2.2.3
   hooks:
     - id: check-merge-conflict

CHANGELOG.md

@@ -0,0 +1,143 @@
+<a name="unreleased"></a>
+## [Unreleased]
+
+
+
+<a name="v2.0.0"></a>
+## [v2.0.0] - 2019-06-02
+
+- fixed logic when determining whether to add kms policy statement
+- path ref was not behaving the same in 0.12 but did not seem to need to be this complicated anyway
+- Ran upgrade, manually tweaked some gaps and did basic testing
+
+
+<a name="v1.13.0"></a>
+## [v1.13.0] - 2019-02-22
+
+- need to convert from json string to dict when extracting message from event ([#30](https://github.com/terraform-aws-modules/terraform-aws-notify-slack/issues/30))
+
+
+<a name="v1.12.0"></a>
+## [v1.12.0] - 2019-02-21
+
+- Pass the subject ot default_notification ([#29](https://github.com/terraform-aws-modules/terraform-aws-notify-slack/issues/29))
+
+
+<a name="v1.11.0"></a>
+## [v1.11.0] - 2018-12-28
+
+- No longer parsing the SNS event as incoming JSON ([#23](https://github.com/terraform-aws-modules/terraform-aws-notify-slack/issues/23))
+
+
+<a name="v1.10.0"></a>
+## [v1.10.0] - 2018-08-20
+
+- Fixed bug which causes apply failure when create = false ([#19](https://github.com/terraform-aws-modules/terraform-aws-notify-slack/issues/19))
+
+
+<a name="v1.9.0"></a>
+## [v1.9.0] - 2018-06-21
+
+- Allow computed KMS key value (fixed [#10](https://github.com/terraform-aws-modules/terraform-aws-notify-slack/issues/10)) ([#18](https://github.com/terraform-aws-modules/terraform-aws-notify-slack/issues/18))
+
+
+<a name="v1.8.0"></a>
+## [v1.8.0] - 2018-06-20
+
+- include short alarm name in slack notification text ([#14](https://github.com/terraform-aws-modules/terraform-aws-notify-slack/issues/14))
+
+
+<a name="v1.7.0"></a>
+## [v1.7.0] - 2018-06-20
+
+- Renamed enable to create, minor fixes after [#15](https://github.com/terraform-aws-modules/terraform-aws-notify-slack/issues/15)
+- Add flag to enable/disable creation of resources ([#15](https://github.com/terraform-aws-modules/terraform-aws-notify-slack/issues/15))
+
+
+<a name="v1.6.0"></a>
+## [v1.6.0] - 2018-06-19
+
+- Fixed formatting
+- Fix Lambda path in shared state ([#17](https://github.com/terraform-aws-modules/terraform-aws-notify-slack/issues/17))
+- Fixed spelling a bit
+- Cirumvent TF's path.module limitation for lambda filenames
+- Cirumvent TF's path.module limitation for lambda filenames
+- Cirumvent TF's path.module limitation for lambda filenames
+
+
+<a name="v1.5.0"></a>
+## [v1.5.0] - 2018-06-06
+
+- Fixed formatting (ran 'pre-commit run -a')
+- Add in slack emoji support ([#11](https://github.com/terraform-aws-modules/terraform-aws-notify-slack/issues/11))
+- Update comments in examples/ about aws_kms_ciphertext ([#12](https://github.com/terraform-aws-modules/terraform-aws-notify-slack/issues/12))
+
+
+<a name="v1.4.0"></a>
+## [v1.4.0] - 2018-06-05
+
+- Ignore `last_modified` timestamp deciding whether to do an update ([#9](https://github.com/terraform-aws-modules/terraform-aws-notify-slack/issues/9))
+- Updated formatting in examples
+
+
+<a name="v1.3.0"></a>
+## [v1.3.0] - 2018-05-29
+
+- Ignore changes in filename (fixed [#6](https://github.com/terraform-aws-modules/terraform-aws-notify-slack/issues/6))
+
+
+<a name="v1.2.0"></a>
+## [v1.2.0] - 2018-05-16
+
+- Added pre-commit hook to autogenerate terraform-docs ([#7](https://github.com/terraform-aws-modules/terraform-aws-notify-slack/issues/7))
+
+
+<a name="v1.1.0"></a>
+## [v1.1.0] - 2018-03-22
+
+- Feature/lambda function name variable ([#5](https://github.com/terraform-aws-modules/terraform-aws-notify-slack/issues/5))
+
+
+<a name="v1.0.1"></a>
+## [v1.0.1] - 2018-02-22
+
+- Fix mismatch in alarm state labels and values ([#4](https://github.com/terraform-aws-modules/terraform-aws-notify-slack/issues/4))
+
+
+<a name="v1.0.0"></a>
+## [v1.0.0] - 2018-02-15
+
+- Added better code, examples, docs ([#2](https://github.com/terraform-aws-modules/terraform-aws-notify-slack/issues/2))
+
+
+<a name="v0.0.1"></a>
+## v0.0.1 - 2018-02-12
+
+- Merge pull request [#1](https://github.com/terraform-aws-modules/terraform-aws-notify-slack/issues/1) from nazartm/cloudwatch-event
+- Add encrypted webhook URL example
+- Fix decryption of webhook URL
+- Update readme
+- Add basic example
+- Make KMS optional
+- Add README description
+- Add preliminary cloudwatch event handling lambda
+- Initial commit
+
+
+[Unreleased]: https://github.com/terraform-aws-modules/terraform-aws-notify-slack/compare/v2.0.0...HEAD
+[v2.0.0]: https://github.com/terraform-aws-modules/terraform-aws-notify-slack/compare/v1.13.0...v2.0.0
+[v1.13.0]: https://github.com/terraform-aws-modules/terraform-aws-notify-slack/compare/v1.12.0...v1.13.0
+[v1.12.0]: https://github.com/terraform-aws-modules/terraform-aws-notify-slack/compare/v1.11.0...v1.12.0
+[v1.11.0]: https://github.com/terraform-aws-modules/terraform-aws-notify-slack/compare/v1.10.0...v1.11.0
+[v1.10.0]: https://github.com/terraform-aws-modules/terraform-aws-notify-slack/compare/v1.9.0...v1.10.0
+[v1.9.0]: https://github.com/terraform-aws-modules/terraform-aws-notify-slack/compare/v1.8.0...v1.9.0
+[v1.8.0]: https://github.com/terraform-aws-modules/terraform-aws-notify-slack/compare/v1.7.0...v1.8.0
+[v1.7.0]: https://github.com/terraform-aws-modules/terraform-aws-notify-slack/compare/v1.6.0...v1.7.0
+[v1.6.0]: https://github.com/terraform-aws-modules/terraform-aws-notify-slack/compare/v1.5.0...v1.6.0
+[v1.5.0]: https://github.com/terraform-aws-modules/terraform-aws-notify-slack/compare/v1.4.0...v1.5.0
+[v1.4.0]: https://github.com/terraform-aws-modules/terraform-aws-notify-slack/compare/v1.3.0...v1.4.0
+[v1.3.0]: https://github.com/terraform-aws-modules/terraform-aws-notify-slack/compare/v1.2.0...v1.3.0
+[v1.2.0]: https://github.com/terraform-aws-modules/terraform-aws-notify-slack/compare/v1.1.0...v1.2.0
+[v1.1.0]: https://github.com/terraform-aws-modules/terraform-aws-notify-slack/compare/v1.0.1...v1.1.0
+[v1.0.1]: https://github.com/terraform-aws-modules/terraform-aws-notify-slack/compare/v1.0.0...v1.0.1
+[v1.0.0]: https://github.com/terraform-aws-modules/terraform-aws-notify-slack/compare/v0.0.1...v1.0.0

Makefile

@@ -0,0 +1,7 @@
+.PHONY: changelog release
+
+changelog:
+	git-chglog -o CHANGELOG.md --next-tag `semtag final -s minor -o`
+
+release:
+	semtag final -s minor

README.md

@@ -4,6 +4,12 @@ This module creates SNS topic (or use existing one) and a AWS Lambda function wh
 
 Start by setting up an [incoming webhook integration](https://my.slack.com/services/new/incoming-webhook/) in your Slack workspace.
 
+## Terraform versions
+
+Terraform 0.12. Pin module version to `~> v2.0`. Submit pull-requests to `master` branch.
+
+Terraform 0.11. Pin module version to `~> v1.0`. Submit pull-requests to `terraform011` branch.
+
 ## Features
 
 - [x] AWS Lambda runtime Python 3.6
@@ -18,7 +24,8 @@ Start by setting up an [incoming webhook integration](https://my.slack.com/servi
 
 ```hcl
 module "notify_slack" {
-  source = "terraform-aws-modules/notify-slack/aws"
+  source  = "terraform-aws-modules/notify-slack/aws"
+  version = "~> 2.0"
 
   sns_topic_name = "slack-topic"
 
@@ -35,7 +42,6 @@ If you want to subscribe AWS Lambda Function created by this module to an existi
 ## Examples
 
 * [notify-slack-simple](https://github.com/terraform-aws-modules/terraform-aws-notify-slack/tree/master/examples/notify-slack-simple) - Creates SNS topic which sends messages to Slack channel.
-* [notify-slack-kms](https://github.com/terraform-aws-modules/terraform-aws-notify-slack/tree/master/examples/notify-slack-simple) - Creates SNS topic which sends messages to Slack channel (using KMS to encrypt Slack webhook URL).
 * [cloudwatch-alerts-to-slack](https://github.com/terraform-aws-modules/terraform-aws-notify-slack/tree/master/examples/cloudwatch-alerts-to-slack) - End to end example which shows how to send AWS Cloudwatch alerts to Slack channel and use KMS to encrypt webhook URL.
 
 <!-- BEGINNING OF PRE-COMMIT-TERRAFORM DOCS HOOK -->
@@ -46,7 +52,6 @@ If you want to subscribe AWS Lambda Function created by this module to an existi
 |------|-------------|:----:|:-----:|:-----:|
 | create | Whether to create all resources | string | `true` | no |
 | create_sns_topic | Whether to create new SNS topic | string | `true` | no |
-| create_with_kms_key | Whether to create resources with KMS encryption | string | `false` | no |
 | kms_key_arn | ARN of the KMS key used for decrypting slack webhook url | string | `` | no |
 | lambda_function_name | The name of the Lambda function to create | string | `notify_slack` | no |
 | slack_channel | The name of the channel in Slack for notifications | string | - | yes |

examples/cloudwatch-alerts-to-slack/README.md

@@ -10,8 +10,6 @@ There are 3 ways to define KMS key which should be used by Lambda function:
 1. Use [aws_kms_alias data-source](https://www.terraform.io/docs/providers/aws/d/kms_alias.html) to get an existing KMS key alias and put ARN of it as `kms_key_arn` argument to this module
 1. Hard-code the ARN of KMS key
 
-Note: Set `create_with_kms_key = true` when providing value of `kms_key_arn` to create required IAM policy which allows to decrypt using specified KMS key.
-
 ### Option 1:
 
 ```hcl
@@ -21,11 +19,10 @@ resource "aws_kms_key" "this" {
 
 resource "aws_kms_alias" "this" {
   name          = "alias/kms-test-key"
-  target_key_id = "${aws_kms_key.this.id}"
+  target_key_id = aws_kms_key.this.id
 }
 
-// kms_key_arn = "${aws_kms_key.this.arn}"
-// create_with_kms_key = true
+// kms_key_arn = aws_kms_key.this.arn
 ```
 
 ### Option 2:
@@ -35,19 +32,13 @@ data "aws_kms_alias" "this" {
  name = "alias/kms-test-key"
 }
 
-// kms_key_arn = "${data.aws_kms_alias.this.target_key_arn}"
-// create_with_kms_key = true
+// kms_key_arn = data.aws_kms_alias.this.target_key_arn
 ```
 
 ### Option 3:
 
 ```
-variable "kms_key_arn" {
-  default = "arn:aws:kms:eu-west-1:835367859851:key/054b4846-95fe-4537-94f2-1dfd255238cf"
-}
-
-// kms_key_arn = "${var.kms_key_arn}"
-// create_with_kms_key = true
+// kms_key_arn = "arn:aws:kms:eu-west-1:835367859851:key/054b4846-95fe-4537-94f2-1dfd255238cf"
 ```
 
 ## Usage

examples/cloudwatch-alerts-to-slack/main.tf

@@ -2,46 +2,27 @@ provider "aws" {
   region = "eu-west-1"
 }
 
-variable "kms_key_arn" {
-  default = "arn:aws:kms:eu-west-1:000014191260:key/66db1c5d-d42b-4e28-8efb-07a9cf607a73"
-}
-
 resource "aws_kms_key" "this" {
   description = "KMS key for notify-slack test"
 }
 
-resource "aws_kms_alias" "this" {
-  name          = "alias/kms-test-key"
-  target_key_id = "${aws_kms_key.this.id}"
-}
-
 # Encrypt the URL, storing encryption here will show it in logs and in tfstate
 # https://www.terraform.io/docs/state/sensitive-data.html
-data "aws_kms_ciphertext" "slack_url" {
+resource "aws_kms_ciphertext" "slack_url" {
   plaintext = "https://hooks.slack.com/services/AAA/BBB/CCC"
-  key_id    = "${aws_kms_key.this.arn}"
+  key_id    = aws_kms_key.this.arn
 }
 
 module "notify_slack" {
   source = "../../"
 
   sns_topic_name = "slack-topic"
 
-  slack_webhook_url = "${data.aws_kms_ciphertext.slack_url.ciphertext_blob}"
+  slack_webhook_url = aws_kms_ciphertext.slack_url.ciphertext_blob
   slack_channel     = "aws-notification"
   slack_username    = "reporter"
 
-  # Option 1
-  kms_key_arn = "${aws_kms_key.this.arn}"
-
-  # Option 2
-  //  kms_key_arn = "${data.aws_kms_alias.this.target_key_arn}"
-
-
-  # Option 3
-  //  kms_key_arn = "${var.kms_key_arn}"
-
-  create_with_kms_key = true
+  kms_key_arn = aws_kms_key.this.arn
 }
 
 resource "aws_cloudwatch_metric_alarm" "LambdaDuration" {
@@ -55,9 +36,9 @@ resource "aws_cloudwatch_metric_alarm" "LambdaDuration" {
   threshold           = "5000"
   alarm_description   = "Duration of notifying slack exceeds threshold"
 
-  alarm_actions = ["${module.notify_slack.this_slack_topic_arn}"]
+  alarm_actions = [module.notify_slack.this_slack_topic_arn]
 
-  dimensions {
-    FunctionName = "${module.notify_slack.notify_slack_lambda_function_name}"
+  dimensions = {
+    FunctionName = module.notify_slack.notify_slack_lambda_function_name
   }
 }