add VM user to docker group

Author: tknerr

roles/docker/tasks/main.yml

@@ -14,3 +14,9 @@
   apt:
     deb: https://download.docker.com/linux/ubuntu/dists/focal/pool/stable/amd64/docker-ce_20.10.7~3-0~ubuntu-focal_amd64.deb
     state: present
+
+- name: Add VM user to 'docker' group
+  user:
+    name: "{{ ansible_env.SUDO_USER }}"
+    groups: docker
+    append: yes

spec/test_docker.py

@@ -1,3 +1,7 @@
+import os
+
+def test_vm_user_is_in_docker_group_(host):
+    assert 'docker' in host.user(os.environ['USER']).groups
 
 def test_containerd_package_is_installed_at_version_1_4_6_(host):
     assert host.package('containerd.io').is_installed