Merge pull request #3229 from mirwan/docker_1806_ubuntu_under_bionic

Docker 18.06 for ubuntu versions before bionic

roles/docker/vars/ubuntu-amd64.yml

@@ -9,8 +9,10 @@ docker_versioned_pkg:
   '1.13': docker-engine=1.13.1-0~ubuntu-{{ ansible_distribution_release|lower }}
   '17.03': docker-ce=17.03.2~ce-0~ubuntu-{{ ansible_distribution_release|lower }}
   '17.09': docker-ce=17.09.0~ce-0~ubuntu-{{ ansible_distribution_release|lower }}
+  '17.12': docker-ce=17.12.1~ce-0~ubuntu-{{ ansible_distribution_release|lower }}
+  '18.06': docker-ce=18.06.1~ce~3-0~ubuntu
   'stable': docker-ce=17.03.2~ce-0~ubuntu-{{ ansible_distribution_release|lower }}
-  'edge': docker-ce=17.12.1~ce-0~ubuntu-{{ ansible_distribution_release|lower }}
+  'edge': docker-ce=18.06.1~ce~3-0~ubuntu
 
 docker_package_info:
   pkg_mgr: apt