diff --git a/.gitea/limbo_actions/buildkit-build-push/action.yaml b/.gitea/limbo_actions/buildkit-build-push/action.yaml
index 7f536fe..554aaab 100644
--- a/.gitea/limbo_actions/buildkit-build-push/action.yaml
+++ b/.gitea/limbo_actions/buildkit-build-push/action.yaml
@@ -38,17 +38,18 @@ runs:
     - name: run buildctl build and push
       shell: bash
       run: |
-
-        # create docker config temp folder
-        DOCKER_CONFIG_DIR="${RUNNER_TEMP}/.buildctl_docker"
-        mkdir -p "$DOCKER_CONFIG_DIR"
-
+        set -euo pipefail
+        DOCKER_CONFIG="${RUNNER_TEMP}/.buildctl_docker"
+        mkdir -p "$DOCKER_CONFIG"
+        
         # clean up
-        trap 'rm -rf "$DOCKER_CONFIG_DIR"' EXIT
+        trap 'rm -rf "$DOCKER_CONFIG"' EXIT
+        
 
-        # setup file docker config (auth) temp file
-        AUTH=$(printf "%s" "${{ inputs.registry_username }}:${{ inputs.registry_password }}" | base64 -w 0)
-        cat > "$DOCKER_CONFIG_DIR/config.json" <<EOF
+        USER='${{ inputs.registry_username }}'
+        PASS='${{ inputs.registry_password }}'
+        AUTH=$(printf '%s:%s' "$USER" "$PASS" | base64 -w0)
+         cat > "$DOCKER_CONFIG/config.json" <<EOF
         {
           "auths": {
             "${{ inputs.registry_addr }}": {
@@ -67,8 +68,9 @@ runs:
 
         echo "Using build args: $BUILD_ARG_FLAGS"
 
-        # Run BuildKit build
-        DOCKER_CONFIG=$DOCKER_CONFIG_DIR buildctl \
+        echo "build and push image to ${{ inputs.registry_addr }}"
+        
+        DOCKER_CONFIG="$DOCKER_CONFIG" buildctl \
           --addr ${{ inputs.buildkit_addr }} \
           build \
           --frontend=dockerfile.v0 \
@@ -77,5 +79,4 @@ runs:
           --opt filename=${{ inputs.filename }} \
           $BUILD_ARG_FLAGS \
           --output type=image,name=${{ inputs.tags }},push=true
-