Fix livecycle (#26)

* Fix livecycle

* Fix livecycle

* Fix policy

* Fix policy

* Fix policy

* Fix policy

* Update main.tf

* Update main.tf

* Update variables.tf

* Fix readmed

* Fix readmed

* Fix readmed

Author: goruha

README.md

@@ -42,6 +42,11 @@ We literally have [*hundreds of terraform modules*][terraform_modules] that are
 
 ## Usage
 
+
+**IMPORTANT:** The `master` branch is used in `source` just as an example. In your code, do not pin to `master` because there may be breaking changes between releases.
+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-ecr/releases).
+
+
 The module works in two distinct modes:
 
 1. If you provide the existing IAM Role names in the `roles` attribute, the Roles will be granted permissions to work with the created registry.
@@ -119,7 +124,7 @@ Available targets:
 | attributes | Additional attributes (e.g. `policy` or `role`) | list | `<list>` | no |
 | delimiter | Delimiter to be used between `name`, `namespace`, `stage`, etc. | string | `-` | no |
 | enabled | Set to false to prevent the module from creating any resources | string | `true` | no |
-| max_image_count | How many Docker Image versions AWS ECR will store | string | `7` | no |
+| max_image_count | How many Docker Image versions AWS ECR will store | string | `500` | no |
 | name | The Name of the application or solution  (e.g. `bastion` or `portal`) | string | - | yes |
 | namespace | Namespace (e.g. `cp` or `cloudposse`) | string | - | yes |
 | principals_full_access | Principal ARN to provide with full access to the ECR | list | `<list>` | no |

docs/terraform.md

@@ -5,7 +5,7 @@
 | attributes | Additional attributes (e.g. `policy` or `role`) | list | `<list>` | no |
 | delimiter | Delimiter to be used between `name`, `namespace`, `stage`, etc. | string | `-` | no |
 | enabled | Set to false to prevent the module from creating any resources | string | `true` | no |
-| max_image_count | How many Docker Image versions AWS ECR will store | string | `7` | no |
+| max_image_count | How many Docker Image versions AWS ECR will store | string | `500` | no |
 | name | The Name of the application or solution  (e.g. `bastion` or `portal`) | string | - | yes |
 | namespace | Namespace (e.g. `cp` or `cloudposse`) | string | - | yes |
 | principals_full_access | Principal ARN to provide with full access to the ECR | list | `<list>` | no |

main.tf

@@ -27,19 +27,32 @@ resource "aws_ecr_lifecycle_policy" "default" {
 
   policy = <<EOF
 {
-  "rules": [{
-    "rulePriority": 1,
-    "description": "Rotate images when reach ${var.max_image_count} images stored",
-    "selection": {
-      "tagStatus": "tagged",
-      "tagPrefixList": ["${var.stage}"],
-      "countType": "imageCountMoreThan",
-      "countNumber": ${var.max_image_count}
+  "rules": [
+    {
+      "rulePriority": 1,
+      "description": "Remove untagged images",
+      "selection": {
+        "tagStatus": "untagged",
+        "countType": "imageCountMoreThan",
+        "countNumber": 1
+      },
+      "action": {
+        "type": "expire"
+      }
     },
-    "action": {
-      "type": "expire"
+    {
+      "rulePriority": 2,
+      "description": "Rotate images when reach ${var.max_image_count} images stored",
+      "selection": {
+        "tagStatus": "any",
+        "countType": "imageCountMoreThan",
+        "countNumber": ${var.max_image_count}
+      },
+      "action": {
+        "type": "expire"
+      }
     }
-  }]
+  ]
 }
 EOF
 }

variables.tf

@@ -54,5 +54,5 @@ variable "tags" {
 variable "max_image_count" {
   type        = "string"
   description = "How many Docker Image versions AWS ECR will store"
-  default     = "7"
+  default     = "500"
 }