diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..e69de29
diff --git a/action.yml b/action.yml
index e6eb2bb..561c1ab 100644
--- a/action.yml
+++ b/action.yml
@@ -7,9 +7,14 @@ inputs:
   path:
     description: The playbook's path
     required: true
+  check_only:
+    description: Whether to only check without changes
+    required: false
+    default: "false"
 
 runs:
   using: docker
   image: Dockerfile
   env:
     INPUT_PATH: ${{ inputs.path }}
+    INPUT_CHECK_ONLY: ${{ inputs.check_only }}
diff --git a/entrypoint.sh b/entrypoint.sh
index fb8c591..3295c3a 100644
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -1,6 +1,11 @@
 #!/usr/bin/env ash
 
 set -e
-ansible-playbook "$INPUT_PATH" -vv
+
+if [ "$INPUT_CHECK_ONLY" = "true" ]; then
+  ANSIBLE_OPTIONS="--check --diff"
+fi;
+
+ansible-playbook "$INPUT_PATH" -vv "$ANSIBLE_OPTIONS"
 
 exit 0