update

Author: Changming Sun

build-docker-image/action.yml

@@ -1,12 +1,9 @@
 name: 'Build Docker Image'
-description: 'Builds a Docker image, supports ACR login (if ACR name provided) for base images, uses checksum tag for image-level caching (pull/push) to a registry.' # Updated description
+description: 'Builds a Docker image using the directory containing the Dockerfile as context. Supports ACR login for base images and uses a checksum tag for image-level caching (pull/push) to a registry.' # Updated description
 
 inputs:
   dockerfile:
-    description: 'Required. Path to the Dockerfile (relative to repository root).'
-    required: true
-  context:
-    description: 'Required. Path to the Docker build context directory (relative to repository root).'
+    description: 'Required. Path to the Dockerfile (relative to repository root). The directory containing this file will be used as the build context.' # Updated description
     required: true
   image-name:
     description: 'Required. Base image name for tagging and potential push/pull cache (e.g., ghcr.io/owner/repo/img, myacr.azurecr.io/img). Checksum tag will be added.'
@@ -27,9 +24,11 @@ inputs:
     description: 'Optional. Attempt to pull the checksum-tagged image before building to check for cache hit.'
     required: false
     default: 'true'
+  # --- Login Inputs ---
   login-ghcr:
     description: 'Optional. Attempt login to ghcr.io using GITHUB_TOKEN. Defaults to true if image-name starts with `ghcr.io`.'
     required: false
+    # Default handled dynamically
   azure-container-registry-name:
     description: 'Optional. If provided, the action will attempt `az login --identity` and `az acr login` with this name *before* the build starts (useful for base image pulls from ACR).'
     required: false