Update action.yml to pass action environment variable

action.yml

@@ -367,17 +367,22 @@ runs:
         METRICS_REF=$(echo $METRICS_ACTION | sed -E 's/^.*metrics//g')
         echo "Running on $METRICS_SOURCE/metrics@$METRICS_REF"
 
-        # If using official action, run docker image from GitHub registry
+        # If using official action, use docker image from GitHub registry
         if [[ $METRICS_SOURCE == "lowlighter-test-forks" ]]; then
           echo "Running docker image from GitHub registry"
-          docker run ghcr.io/lowlighter/metrics:$METRICS_REF
+          METRICS_IMAGE=ghcr.io/lowlighter/metrics:$METRICS_REF
         # On forked actions, rebuild the docker image instead
         else
           echo "This is a forked version, rebuilding docker image from Dockerfile"
           cd $METRICS_ACTION_PATH
           docker build -t metrics:forked .
-          docker run metrics:forked
+          METRICS_IMAGE=metrics:forked
         fi
+
+        # Run docker image with current environment
+        echo "Using $METRICS_IMAGE"
+        env | grep -E '^(INPUT|GITHUB|RUNNER|ACTIONS|HOME|CI)' > .env
+        docker run --env-file .env $METRICS_IMAGE
       shell: bash
       env:
         METRICS_ACTION: ${{ github.action }}