fix: step container workdir and mounts (#93)

* fix: step container workdir and mounts
* avoid perm issues and do not mount tool_cache

pkg/runner/testdata/docker-action-host-env/action/Dockerfile

@@ -0,0 +1,13 @@
+FROM debian:bullseye-slim
+
+# Install dependencies
+RUN apt-get update && apt-get install -y \
+    curl \
+    && apt-get clean
+
+# Copy the entrypoint script
+COPY entrypoint.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
+
+# Set the entrypoint
+ENTRYPOINT ["/entrypoint.sh"]

pkg/runner/testdata/docker-action-host-env/action/action.yml

@@ -0,0 +1,12 @@
+name: "Hello World Docker Action"
+description: "A simple Docker action that prints Hello, World! and environment variables."
+inputs:
+  who-to-greet:
+    description: "Who to greet"
+    required: false
+    default: "World"
+runs:
+  using: "docker"
+  image: "Dockerfile"
+  args:
+    - ${{ inputs.who-to-greet }}

pkg/runner/testdata/docker-action-host-env/action/entrypoint.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+set -e
+
+# Print a greeting
+echo "Hello, $1!"
+
+# Print all environment variables
+echo "Environment Variables:"
+env
+
+ls -la "$PWD"
+ls -la "$PWD/docker-action-host-env"
+
+if [ -f "$PWD/docker-action-host-env/Dockerfile" ]; then
+  echo "Dockerfile exists in workspace."
+else
+  echo "Dockerfile does not exist in workspace."
+fi

pkg/runner/testdata/docker-action-host-env/push.yml

@@ -0,0 +1,15 @@
+name: Hello World Docker Action Workflow
+
+on: [push]
+
+jobs:
+  hello_world_job:
+    runs-on: self-hosted
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Run Hello World Docker Action
+        uses: ./docker-action-host-env/action
+        with:
+          who-to-greet: "GitHub"

pkg/runner/testdata/uses-nested-composite/push.yml

@@ -1,4 +1,4 @@
-name: uses-docker-url
+name: uses-nested-composite
 on: push
 
 jobs: