Merge pull request #7 from bitovi/working-dir

adding working-directory option

README.md

@@ -36,6 +36,7 @@ The following can be used as `step.with` keys.  T/F types expect true or false.
 | `org_name` | string | No | Docker org name.   | GitHub Org Name |
 | `repo_name` | string | No | The name of the Docker Repository.  | GitHub repo name. |
 | `build_args` | string | No | Add arbitrary build arguments | N/A |
+| `working-directory` | string | No | Specifies the working directory for the Docker Build step | N/A |
 
 
 ## Example 1
@@ -72,6 +73,7 @@ Here we check the code out since we make a change before the build / publish ste
         org_name: bitovi
         repo_name: deploy-eks-helm
         build_args: --build-arg git_personal_token=PAT_token
+        working-directory: ./app/inner-folder
     - run: |
         echo "Image Created:  ${{ env.image }}"
         echo "Tag Created: ${{ env.tag }}"

action.yaml

@@ -39,6 +39,9 @@ inputs:
   build_args:
     description: Add a string of values to the end of the build command
     required: false
+  working-directory:
+    description: Specify the working directory that the docker build will be run in
+    required: false
 
 runs:
   using: "composite"
@@ -89,6 +92,10 @@ runs:
 
         IMAGE_NAME="$ORG_NAME/$REPO_NAME"
 
+        if [ -n "${{ inputs.working-directory }}" ]; then
+          cd ${{ inputs.working-directory }}
+        fi
+        
         echo "::group::Build Image"
         echo "Building $IMAGE_NAME"
         docker build --pull -t $IMAGE_NAME:$IMAGE_TAG . ${{ inputs.build_args }}