diff --git a/_grains/docker_swarm.py b/_grains/docker_swarm.py
new file mode 100644
index 0000000..8b8ecb7
--- /dev/null
+++ b/_grains/docker_swarm.py
@@ -0,0 +1,34 @@
+#!/usr/bin/env python
+
+import os
+import yaml
+import subprocess
+
+
+def main():
+    output = {}
+    if os.path.exists('/var/lib/docker/swarm/control.sock'):
+        try:
+            output["docker_swarm_tokens"] = {
+                'worker': subprocess.check_output(["docker", "swarm", "join-token", "-q", "worker"]).strip(),
+                'manager': subprocess.check_output(["docker", "swarm", "join-token", "-q", "manager"]).strip()
+            }
+        except subprocess.CalledProcessError:
+            pass
+
+    if os.path.exists('/var/lib/docker/swarm/state.json'):
+        with open('/var/lib/docker/swarm/state.json') as fh:
+            state = yaml.load(fh)
+            for key, value in state[0].iteritems():
+                output["docker_swarm_%s" % key] = value
+
+    if os.path.exists('/var/lib/docker/swarm/docker-state.json'):
+        with open('/var/lib/docker/swarm/docker-state.json') as fh:
+            state = yaml.load(fh)
+            for key, value in state.iteritems():
+                output["docker_swarm_%s" % key] = value
+
+    if output:
+        return output
+    else:
+        return None