From e2c7bd498cad9bcaf0a58045242378d774f50469 Mon Sep 17 00:00:00 2001
From: Tanet Trimas <42898343+tanettrimas@users.noreply.github.com>
Date: Tue, 10 Nov 2026 12:54:53 +0100
Subject: [PATCH] fix(ecr): match main build tags in lifecycle retention rule

---
 docs/reusable-modules.md                | 2 +-
 terraform/modules/ecr-repo/main.tf      | 2 +-
 terraform/modules/ecr-repo/variables.tf | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/docs/reusable-modules.md b/docs/reusable-modules.md
index b51d16d..8b9f890 100644
--- a/docs/reusable-modules.md
+++ b/docs/reusable-modules.md
@@ -28,7 +28,7 @@ ECR repository with 4-rule lifecycle policy.
 | Rule | Default |
 |------|---------|
 | Keep N semver releases (`v*`) | 5 |
-| Keep N main builds (`main-*`, `master-*`) | 3 |
+| Keep N main builds (`main-*`) | 3 |
 | Expire untagged | 1 day |
 | Expire other tags | 7 days |
 
diff --git a/terraform/modules/ecr-repo/main.tf b/terraform/modules/ecr-repo/main.tf
index 80b99e8..d884e9c 100644
--- a/terraform/modules/ecr-repo/main.tf
+++ b/terraform/modules/ecr-repo/main.tf
@@ -40,7 +40,7 @@ resource "aws_ecr_lifecycle_policy" "this" {
         description  = "Keep last ${var.main_keep_count} main builds"
         selection = {
           tagStatus     = "tagged"
-          tagPrefixList = ["main-", "master-"]
+          tagPrefixList = ["main-"]
           countType     = "imageCountMoreThan"
           countNumber   = var.main_keep_count
         }
diff --git a/terraform/modules/ecr-repo/variables.tf b/terraform/modules/ecr-repo/variables.tf
index 1bfa0a4..6994a57 100644
--- a/terraform/modules/ecr-repo/variables.tf
+++ b/terraform/modules/ecr-repo/variables.tf
@@ -21,7 +21,7 @@ variable "semver_keep_count" {
 }
 
 variable "main_keep_count" {
-  description = "Number of main/master branch build images to keep"
+  description = "Number of main branch build images to keep"
   type        = number
   default     = 3
 }