Merge branch 'centos8'

.travis.yml

@@ -6,6 +6,7 @@ env:
   global:
     - ROLE_NAME: docker
   matrix:
+    - MOLECULE_DISTRO: centos8
     - MOLECULE_DISTRO: centos7
     - MOLECULE_DISTRO: ubuntu1804
     - MOLECULE_DISTRO: ubuntu1604

README.md

@@ -41,8 +41,8 @@ Docker Compose installation options.
 (Used only for Debian/Ubuntu.) You can switch the channel to `edge` if you want to use the Edge release.
 
     docker_yum_repo_url: https://download.docker.com/linux/centos/docker-{{ docker_edition }}.repo
-    docker_yum_repo_enable_edge: 0
-    docker_yum_repo_enable_test: 0
+    docker_yum_repo_enable_edge: '0'
+    docker_yum_repo_enable_test: '0'
 
 (Used only for RedHat/CentOS.) You can enable the Edge or Test repo by setting the respective vars to `1`.
 

defaults/main.yml

@@ -22,8 +22,8 @@ docker_apt_ignore_key_error: true
 
 # Used only for RedHat/CentOS/Fedora.
 docker_yum_repo_url: https://download.docker.com/linux/{{ (ansible_distribution == "Fedora") | ternary("fedora","centos") }}/docker-{{ docker_edition }}.repo
-docker_yum_repo_enable_edge: 0
-docker_yum_repo_enable_test: 0
+docker_yum_repo_enable_edge: '0'
+docker_yum_repo_enable_test: '0'
 
 # A list of users who will be added to the docker group.
 docker_users: []

meta/main.yml

@@ -10,8 +10,8 @@ galaxy_info:
   platforms:
     - name: EL
       versions:
-        - 6
         - 7
+        - 8
     - name: Fedora
       versions:
         - all

tasks/setup-RedHat.yml

@@ -33,3 +33,9 @@
     section: 'docker-{{ docker_edition }}-test'
     option: enabled
     value: '{{ docker_yum_repo_enable_test }}'
+
+- name: Install containerd separately (CentOS 8).
+  package:
+    name: https://download.docker.com/linux/centos/7/x86_64/stable/Packages/containerd.io-1.2.6-3.3.el7.x86_64.rpm
+    state: present
+  when: ansible_distribution_major_version | int == 8