diff --git a/roles/docker/defaults/main.yml b/roles/docker/defaults/main.yml
index 70289582b..1685b0f69 100644
--- a/roles/docker/defaults/main.yml
+++ b/roles/docker/defaults/main.yml
@@ -1,4 +1,4 @@
-docker_version: '1.10'
+docker_version: '1.12'
 
 docker_package_info:
   pkgs:
diff --git a/roles/docker/tasks/main.yml b/roles/docker/tasks/main.yml
index d3587e2d3..69243a612 100644
--- a/roles/docker/tasks/main.yml
+++ b/roles/docker/tasks/main.yml
@@ -48,8 +48,7 @@
   copy:
     src: "rh_docker.repo"
     dest: "/etc/yum.repos.d/docker.repo"
-  when: ansible_distribution in ["CentOS","RedHat"] and
-        ansible_distribution_major_version >= 7
+  when: ansible_distribution in ["CentOS","RedHat"]
 
 - name: ensure docker packages are installed
   action: "{{ docker_package_info.pkg_mgr }}"
diff --git a/roles/docker/vars/centos-6.yml b/roles/docker/vars/centos-6.yml
deleted file mode 100644
index 484063788..000000000
--- a/roles/docker/vars/centos-6.yml
+++ /dev/null
@@ -1,16 +0,0 @@
-docker_kernel_min_version: '2.6.32-431'
-
-# versioning: docker-io itself is pinned at docker 1.5
-
-docker_package_info:
-  pkg_mgr: yum
-  pkgs:
-    - name: docker-io
-
-docker_repo_key_info:
-  pkg_key: ''
-  repo_keys: []
-
-docker_repo_info:
-  pkg_repo: ''
-  repos: []
diff --git a/roles/docker/vars/debian.yml b/roles/docker/vars/debian.yml
index f9bca1a22..5da66bfe5 100644
--- a/roles/docker/vars/debian.yml
+++ b/roles/docker/vars/debian.yml
@@ -1,10 +1,8 @@
-docker_kernel_min_version: '3.2'
+docker_kernel_min_version: '3.10'
 
 # https://apt.dockerproject.org/repo/dists/debian-wheezy/main/filelist
 docker_versioned_pkg:
   'latest': docker-engine
-  '1.9': docker-engine=1.9.1-0~{{ ansible_distribution_release|lower }}
-  '1.10': docker-engine=1.10.3-0~{{ ansible_distribution_release|lower }}
   '1.11': docker-engine=1.11.2-0~{{ ansible_distribution_release|lower }}
   '1.12': docker-engine=1.12.5-0~debian-{{ ansible_distribution_release|lower }}
 
diff --git a/roles/docker/vars/fedora.yml b/roles/docker/vars/fedora.yml
index 9fef0d37f..ce057cea0 100644
--- a/roles/docker/vars/fedora.yml
+++ b/roles/docker/vars/fedora.yml
@@ -2,8 +2,6 @@ docker_kernel_min_version: '0'
 
 docker_versioned_pkg:
   'latest': docker
-  '1.9': docker-1:1.9.1
-  '1.10': docker-1:1.10.1
   '1.11': docker-1:1.11.2
   '1.12': docker-1:1.12.5
 
diff --git a/roles/docker/vars/ubuntu-16.04.yml b/roles/docker/vars/ubuntu-16.04.yml
deleted file mode 100644
index 21fb1927a..000000000
--- a/roles/docker/vars/ubuntu-16.04.yml
+++ /dev/null
@@ -1,29 +0,0 @@
----
-docker_version: '1.11'
-docker_kernel_min_version: '3.2'
-
-# https://apt.dockerproject.org/repo/dists/ubuntu-xenial/main/filelist
-docker_versioned_pkg:
-  'latest': docker-engine
-  '1.11': docker-engine=1.11.1-0~{{ ansible_distribution_release|lower }}
-  '1.12': docker-engine=1.12.5-0~ubuntu-{{ ansible_distribution_release|lower }}
-
-docker_package_info:
-  pkg_mgr: apt
-  pkgs:
-    - name: "{{ docker_versioned_pkg[docker_version | string] }}"
-      force: yes
-
-docker_repo_key_info:
-  pkg_key: apt_key
-  keyserver: hkp://p80.pool.sks-keyservers.net:80
-  repo_keys:
-    - 58118E89F3A912897C070ADBF76221572C52609D
-
-docker_repo_info:
-  pkg_repo: apt_repository
-  repos:
-    - >
-       deb https://apt.dockerproject.org/repo
-       {{ ansible_distribution|lower }}-{{ ansible_distribution_release|lower }}
-       main
diff --git a/roles/docker/vars/ubuntu.yml b/roles/docker/vars/ubuntu.yml
index 2b258670a..35d301733 100644
--- a/roles/docker/vars/ubuntu.yml
+++ b/roles/docker/vars/ubuntu.yml
@@ -1,11 +1,10 @@
+---
+docker_version: '1.12'
+docker_kernel_min_version: '3.10'
 
-docker_kernel_min_version: '3.2'
-
-# https://apt.dockerproject.org/repo/dists/ubuntu-trusty/main/filelist
+# https://apt.dockerproject.org/repo/dists/ubuntu-xenial/main/filelist
 docker_versioned_pkg:
   'latest': docker-engine
-  '1.9': docker-engine=1.9.0-0~{{ ansible_distribution_release|lower }}
-  '1.10': docker-engine=1.10.3-0~{{ ansible_distribution_release|lower }}
   '1.11': docker-engine=1.11.1-0~{{ ansible_distribution_release|lower }}
   '1.12': docker-engine=1.12.5-0~ubuntu-{{ ansible_distribution_release|lower }}
 
diff --git a/roles/kubernetes/preinstall/tasks/main.yml b/roles/kubernetes/preinstall/tasks/main.yml
index aeaefc45d..761d497b0 100644
--- a/roles/kubernetes/preinstall/tasks/main.yml
+++ b/roles/kubernetes/preinstall/tasks/main.yml
@@ -117,8 +117,7 @@
 
 - name: Install epel-release on RedHat/CentOS
   shell: rpm -qa | grep epel-release || rpm -ivh {{ epel_rpm_download_url }}
-  when: ansible_distribution in ["CentOS","RedHat"] and
-        ansible_distribution_major_version >= 7
+  when: ansible_distribution in ["CentOS","RedHat"]
   changed_when: False
   tags: bootstrap-os
 
@@ -182,7 +181,6 @@
 
 - include: growpart-azure-centos-7.yml
   when: azure_check.stat.exists and
-        ansible_distribution in ["CentOS","RedHat"] and
-        ansible_distribution_major_version >= 7
+        ansible_distribution in ["CentOS","RedHat"]
   tags: bootstrap-os