Add role to enable experimental docker mode

roles/docker-experimental/handlers/main.yml

@@ -0,0 +1,3 @@
+- name: restart docker
+  debug: msg="docker configuration has been updated. Please restart docker daemon"
+

roles/docker-experimental/tasks/main.yml

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+- name: Enable experimental docker mode
+  template:
+    src: daemon.json.j2
+    dest: /etc/docker/daemon.json
+  notify: restart docker
+

roles/docker-experimental/templates/daemon.json.j2

@@ -0,0 +1,6 @@
+{
+	"experimental": true,
+	"features": {
+		"buildkit": true
+	}
+}