Adds *_hostname_enabled vars for explicit opt-in to hostnames (#73)

* Adds *_hostname_enabled vars for explicit opt-in to hostnames

Implicit opt-in through checking dns_zone_id was causing folks problems as count / enabled need to be calculated during the plan which caused using target.
See #13 + https://sweetops.slack.com/archives/CB6GHNLG0/p1600294860394500

* Updates examples/complete to fix tests

* Update to `context.tf`. Update example. Update Terratest to `go` modules

Co-authored-by: aknysh <[email protected]>

Author: Gowiem

.github/CODEOWNERS

@@ -1,4 +1,17 @@
 # Use this file to define individuals or teams that are responsible for code in a repository.
 # Read more: <https://help.github.com/articles/about-codeowners/>
+#
+# Order is important: the last matching pattern takes the most precedence
 
-* @cloudposse/engineering
+# These owners will be the default owners for everything
+*             @cloudposse/engineering @cloudposse/contributors
+
+# Cloud Posse must review any changes to Makefiles
+**/Makefile   @cloudposse/engineering
+**/Makefile.* @cloudposse/engineering
+
+# Cloud Posse must review any changes to GitHub actions
+.github/*     @cloudposse/engineering
+
+# Cloud Posse must review any changes to standard context definition
+**/context.tf   @cloudposse/engineering

.github/auto-release.yml

@@ -0,0 +1,40 @@
+name-template: 'v$RESOLVED_VERSION'
+tag-template: '$RESOLVED_VERSION'
+version-template: '$MAJOR.$MINOR.$PATCH'
+version-resolver:
+  major:
+    labels:
+      - 'major'
+  minor:
+    labels:
+      - 'minor'
+      - 'enhancement'
+  patch:
+    labels:
+      - 'patch'
+      - 'fix'
+      - 'bugfix'
+      - 'bug'
+      - 'hotfix'
+  default: 'minor'
+
+categories:
+  - title: '🚀 Enhancements'
+    labels:
+      - 'enhancement'
+  - title: '🐛 Bug Fixes'
+    labels:
+      - 'fix'
+      - 'bugfix'
+      - 'bug'
+      - 'hotfix'
+
+change-template: |
+  <details>
+    <summary>$TITLE @$AUTHOR (#$NUMBER)</summary>
+
+    $BODY
+  </details>
+
+template: |
+  $CHANGES

.github/workflows/auto-release.yml

@@ -0,0 +1,19 @@
+name: auto-release
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  semver:
+    runs-on: ubuntu-latest
+    steps:
+      # Drafts your next Release notes as Pull Requests are merged into "master"
+      - uses: release-drafter/release-drafter@v5
+        with:
+          publish: true
+          prerelease: false
+          config-name: auto-release.yml
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/chatops.yml

@@ -9,13 +9,13 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - name: "Handle common commands"
-        uses: cloudposse/actions/github/slash-command-dispatch@0.15.0
+        uses: cloudposse/actions/github/slash-command-dispatch@0.16.0
         with:
           token: ${{ secrets.PUBLIC_REPO_ACCESS_TOKEN }}
           reaction-token: ${{ secrets.GITHUB_TOKEN }}
           repository: cloudposse/actions
           commands: rebuild-readme, terraform-fmt
-          permission: none
+          permission: triage
           issue-type: pull-request
 
   test:
@@ -24,13 +24,13 @@ jobs:
       - name: "Checkout commit"
         uses: actions/checkout@v2
       - name: "Run tests"
-        uses: cloudposse/actions/github/slash-command-dispatch@0.15.0
+        uses: cloudposse/actions/github/slash-command-dispatch@0.16.0
         with:
           token: ${{ secrets.PUBLIC_REPO_ACCESS_TOKEN }}
           reaction-token: ${{ secrets.GITHUB_TOKEN }}
           repository: cloudposse/actions
           commands: test
-          permission: none
+          permission: triage
           issue-type: pull-request
           reactions: false
 

README.md

@@ -79,7 +79,6 @@ If you don't enable zone awareness, Amazon ES places an endpoint into only one s
 Instead pin to the release tag (e.g. `?ref=tags/x.y.z`) of one of our [latest releases](https://github.com/cloudposse/terraform-aws-elasticsearch/releases).
 
 
-Basic [example](examples/basic)
 
 ```hcl
 module "elasticsearch" {
@@ -110,6 +109,14 @@ module "elasticsearch" {
 
 
 
+## Examples
+
+Here is a working example of using this module:
+- [`examples/complete`](examples/complete)
+
+Here are automated tests for the complete example using [bats](https://github.com/bats-core/bats-core) and [Terratest](https://github.com/gruntwork-io/terratest) (which tests and deploys the example on AWS):
+- [`test`](test)
+
 
 
 <!-- markdownlint-disable -->
@@ -131,20 +138,21 @@ Available targets:
 |------|---------|
 | terraform | >= 0.12.0 |
 | aws | >= 2.0 |
-| null | ~> 2.0 |
-| template | ~> 2.0 |
+| null | >= 2.0 |
+| template | >= 2.0 |
 
 ## Providers
 
 | Name | Version |
 |------|---------|
 | aws | >= 2.0 |
-| null | ~> 2.0 |
+| null | >= 2.0 |
 
 ## Inputs
 
 | Name | Description | Type | Default | Required |
 |------|-------------|------|---------|:--------:|
+| additional\_tag\_map | Additional tags for appending to tags\_as\_list\_of\_maps. Not added to `tags`. | `map(string)` | `{}` | no |
 | advanced\_options | Key-value string pairs to specify advanced configuration options | `map(string)` | `{}` | no |
 | allowed\_cidr\_blocks | List of CIDR blocks to be allowed to connect to the cluster | `list(string)` | `[]` | no |
 | attributes | Additional attributes (e.g. `1`) | `list(string)` | `[]` | no |
@@ -155,44 +163,49 @@ Available targets:
 | cognito\_iam\_role\_arn | ARN of the IAM role that has the AmazonESCognitoAccess policy attached | `string` | `""` | no |
 | cognito\_identity\_pool\_id | The ID of the Cognito Identity Pool to use | `string` | `""` | no |
 | cognito\_user\_pool\_id | The ID of the Cognito User Pool to use | `string` | `""` | no |
+| context | Single object for setting entire context at once.<br>See description of individual variables for details.<br>Leave string and numeric variables as `null` to use default value.<br>Individual variable settings (non-null) override settings in context object,<br>except for attributes, tags, and additional\_tag\_map, which are merged. | <pre>object({<br>    enabled             = bool<br>    namespace           = string<br>    environment         = string<br>    stage               = string<br>    name                = string<br>    delimiter           = string<br>    attributes          = list(string)<br>    tags                = map(string)<br>    additional_tag_map  = map(string)<br>    regex_replace_chars = string<br>    label_order         = list(string)<br>    id_length_limit     = number<br>  })</pre> | <pre>{<br>  "additional_tag_map": {},<br>  "attributes": [],<br>  "delimiter": null,<br>  "enabled": true,<br>  "environment": null,<br>  "id_length_limit": null,<br>  "label_order": [],<br>  "name": null,<br>  "namespace": null,<br>  "regex_replace_chars": null,<br>  "stage": null,<br>  "tags": {}<br>}</pre> | no |
 | create\_iam\_service\_linked\_role | Whether to create `AWSServiceRoleForAmazonElasticsearchService` service-linked role. Set it to `false` if you already have an ElasticSearch cluster created in the AWS account and AWSServiceRoleForAmazonElasticsearchService already exists. See https://github.com/terraform-providers/terraform-provider-aws/issues/5218 for more info | `bool` | `true` | no |
 | dedicated\_master\_count | Number of dedicated master nodes in the cluster | `number` | `0` | no |
 | dedicated\_master\_enabled | Indicates whether dedicated master nodes are enabled for the cluster | `bool` | `false` | no |
 | dedicated\_master\_type | Instance type of the dedicated master nodes in the cluster | `string` | `"t2.small.elasticsearch"` | no |
-| delimiter | Delimiter to be used between `namespace`, `environment`, `stage`, `name` and `attributes` | `string` | `"-"` | no |
+| delimiter | Delimiter to be used between `namespace`, `environment`, `stage`, `name` and `attributes`.<br>Defaults to `-` (hyphen). Set to `""` to use no delimiter at all. | `string` | `null` | no |
 | dns\_zone\_id | Route53 DNS Zone ID to add hostname records for Elasticsearch domain and Kibana | `string` | `""` | no |
 | domain\_endpoint\_options\_enforce\_https | Whether or not to require HTTPS | `bool` | `false` | no |
 | domain\_endpoint\_options\_tls\_security\_policy | The name of the TLS security policy that needs to be applied to the HTTPS endpoint | `string` | `"Policy-Min-TLS-1-0-2019-07"` | no |
+| domain\_hostname\_enabled | Explicit flag to enable creating a DNS hostname for ES. If `true`, then `var.dns_zone_id` is required. | `bool` | `false` | no |
 | ebs\_iops | The baseline input/output (I/O) performance of EBS volumes attached to data nodes. Applicable only for the Provisioned IOPS EBS volume type | `number` | `0` | no |
 | ebs\_volume\_size | EBS volumes for data storage in GB | `number` | `0` | no |
 | ebs\_volume\_type | Storage type of EBS volumes | `string` | `"gp2"` | no |
 | elasticsearch\_subdomain\_name | The name of the subdomain for Elasticsearch in the DNS zone (\_e.g.\_ `elasticsearch`, `ui`, `ui-es`, `search-ui`) | `string` | `""` | no |
 | elasticsearch\_version | Version of Elasticsearch to deploy (\_e.g.\_ `7.4`, `7.1`, `6.8`, `6.7`, `6.5`, `6.4`, `6.3`, `6.2`, `6.0`, `5.6`, `5.5`, `5.3`, `5.1`, `2.3`, `1.5` | `string` | `"7.4"` | no |
-| enabled | Set to false to prevent the module from creating any resources | `bool` | `true` | no |
+| enabled | Set to false to prevent the module from creating any resources | `bool` | `null` | no |
 | encrypt\_at\_rest\_enabled | Whether to enable encryption at rest | `bool` | `true` | no |
 | encrypt\_at\_rest\_kms\_key\_id | The KMS key ID to encrypt the Elasticsearch domain with. If not specified, then it defaults to using the AWS/Elasticsearch service KMS key | `string` | `""` | no |
-| environment | Environment, e.g. 'prod', 'staging', 'dev', 'pre-prod', 'UAT' | `string` | `""` | no |
+| environment | Environment, e.g. 'uw2', 'us-west-2', OR 'prod', 'staging', 'dev', 'UAT' | `string` | `null` | no |
 | iam\_actions | List of actions to allow for the IAM roles, _e.g._ `es:ESHttpGet`, `es:ESHttpPut`, `es:ESHttpPost` | `list(string)` | `[]` | no |
 | iam\_authorizing\_role\_arns | List of IAM role ARNs to permit to assume the Elasticsearch user role | `list(string)` | `[]` | no |
 | iam\_role\_arns | List of IAM role ARNs to permit access to the Elasticsearch domain | `list(string)` | `[]` | no |
 | iam\_role\_max\_session\_duration | The maximum session duration (in seconds) for the user role. Can have a value from 1 hour to 12 hours | `number` | `3600` | no |
+| id\_length\_limit | Limit `id` to this many characters.<br>Set to `0` for unlimited length.<br>Set to `null` for default, which is `0`.<br>Does not affect `id_full`. | `number` | `null` | no |
 | ingress\_port\_range\_end | End number for allowed port range. (e.g. `443`) | `number` | `65535` | no |
 | ingress\_port\_range\_start | Start number for allowed port range. (e.g. `443`) | `number` | `0` | no |
 | instance\_count | Number of data nodes in the cluster | `number` | `4` | no |
 | instance\_type | Elasticsearch instance type for data nodes in the cluster | `string` | `"t2.small.elasticsearch"` | no |
-| kibana\_subdomain\_name | The name of the subdomain for Kibana in the DNS zone (\_e.g.\_ `kibana`, `ui`, `ui-es`, `search-ui`, `kibana.elasticsearch`) | `string` | `"kibana"` | no |
-| label\_order | The naming order of the id output and Name tag | `list(string)` | `[]` | no |
+| kibana\_hostname\_enabled | Explicit flag to enable creating a DNS hostname for Kibana. If `true`, then `var.dns_zone_id` is required. | `bool` | `false` | no |
+| kibana\_subdomain\_name | The name of the subdomain for Kibana in the DNS zone (\_e.g.\_ `kibana`, `ui`, `ui-es`, `search-ui`, `kibana.elasticsearch`) | `string` | n/a | yes |
+| label\_order | The naming order of the id output and Name tag.<br>Defaults to ["namespace", "environment", "stage", "name", "attributes"].<br>You can omit any of the 5 elements, but at least one must be present. | `list(string)` | `null` | no |
 | log\_publishing\_application\_cloudwatch\_log\_group\_arn | ARN of the CloudWatch log group to which log for ES\_APPLICATION\_LOGS needs to be published | `string` | `""` | no |
 | log\_publishing\_application\_enabled | Specifies whether log publishing option for ES\_APPLICATION\_LOGS is enabled or not | `bool` | `false` | no |
 | log\_publishing\_index\_cloudwatch\_log\_group\_arn | ARN of the CloudWatch log group to which log for INDEX\_SLOW\_LOGS needs to be published | `string` | `""` | no |
 | log\_publishing\_index\_enabled | Specifies whether log publishing option for INDEX\_SLOW\_LOGS is enabled or not | `bool` | `false` | no |
 | log\_publishing\_search\_cloudwatch\_log\_group\_arn | ARN of the CloudWatch log group to which log for SEARCH\_SLOW\_LOGS needs to be published | `string` | `""` | no |
 | log\_publishing\_search\_enabled | Specifies whether log publishing option for SEARCH\_SLOW\_LOGS is enabled or not | `bool` | `false` | no |
-| name | Solution name, e.g. 'app' or 'jenkins' | `string` | `""` | no |
-| namespace | Namespace, which could be your organization name or abbreviation, e.g. 'eg' or 'cp' | `string` | `""` | no |
+| name | Solution name, e.g. 'app' or 'jenkins' | `string` | `null` | no |
+| namespace | Namespace, which could be your organization name or abbreviation, e.g. 'eg' or 'cp' | `string` | `null` | no |
 | node\_to\_node\_encryption\_enabled | Whether to enable node-to-node encryption | `bool` | `false` | no |
+| regex\_replace\_chars | Regex to replace chars with empty string in `namespace`, `environment`, `stage` and `name`.<br>If not set, `"/[^a-zA-Z0-9-]/"` is used to remove all characters other than hyphens, letters and digits. | `string` | `null` | no |
 | security\_groups | List of security group IDs to be allowed to connect to the cluster | `list(string)` | `[]` | no |
-| stage | Stage, e.g. 'prod', 'staging', 'dev', OR 'source', 'build', 'test', 'deploy', 'release' | `string` | `""` | no |
+| stage | Stage, e.g. 'prod', 'staging', 'dev', OR 'source', 'build', 'test', 'deploy', 'release' | `string` | `null` | no |
 | subnet\_ids | VPC Subnet IDs | `list(string)` | `[]` | no |
 | tags | Additional tags (e.g. `map('BusinessUnit','XYZ')` | `map(string)` | `{}` | no |
 | vpc\_enabled | Set to false if ES should be deployed outside of VPC. | `bool` | `true` | no |

README.yaml

@@ -45,9 +45,15 @@ introduction: |-
   The subnets must be in different Availability Zones in the same region.
   If you don't enable zone awareness, Amazon ES places an endpoint into only one subnet. You also need to set `availability_zone_count` to `1`.
 
+examples: |-
+  Here is a working example of using this module:
+  - [`examples/complete`](examples/complete)
+
+  Here are automated tests for the complete example using [bats](https://github.com/bats-core/bats-core) and [Terratest](https://github.com/gruntwork-io/terratest) (which tests and deploys the example on AWS):
+  - [`test`](test)
+
 # How to use this project
 usage: |-
-  Basic [example](examples/basic)
 
   ```hcl
   module "elasticsearch" {