Improved Docker support for SUSE/openSUSE. Notes about control host requirements

.travis.yml

@@ -9,24 +9,25 @@ env:
   global:
     - ROLE_NAME: k3s
   matrix:
-    - MOLECULE_DISTRO: centos8
-    - MOLECULE_DISTRO: centos7
-    - MOLECULE_DISTRO: debian10
-    - MOLECULE_DISTRO: fedora29
-    - MOLECULE_DISTRO: fedora30
-    - MOLECULE_DISTRO: fedora31
-    - MOLECULE_DISTRO: amazonlinux2
+    - MOLECULE_DISTRO: geerlingguy/docker-centos8-ansible:latest
+    - MOLECULE_DISTRO: geerlingguy/docker-centos7-ansible:latest
+    - MOLECULE_DISTRO: geerlingguy/docker-debian10-ansible:latest
+    - MOLECULE_DISTRO: geerlingguy/docker-ubuntu1804-ansible:latest
+    - MOLECULE_DISTRO: geerlingguy/docker-fedora29-ansible:latest
+    - MOLECULE_DISTRO: geerlingguy/docker-fedora30-ansible:latest
+    - MOLECULE_DISTRO: geerlingguy/docker-fedora31-ansible:latest
+    - MOLECULE_DISTRO: geerlingguy/docker-amazonlinux2-ansible:latest
 
     # Test installing docker
-    - MOLECULE_DISTRO: centos7
+    - MOLECULE_DISTRO: geerlingguy/docker-centos7-ansible:latest
       MOLECULE_PLAYBOOK: playbook-docker.yml
 
     # Test using alternate port and using wireguard as the flannel backend
-    - MOLECULE_DISTRO: debian10
+    - MOLECULE_DISTRO: geerlingguy/docker-fedora30-ansible:latest
       MOLECULE_PLAYBOOK: playbook-docker-altport-wireguard.yml
 
     # Test disabling all deployments
-    - MOLECULE_DISTRO: fedora31
+    - MOLECULE_DISTRO: geerlingguy/docker-fedora31-ansible:latest
       MOLECULE_PLAYBOOK: playbook-no-deploy.yml
 
 install:

README.md

@@ -7,6 +7,10 @@ Kubernetes") as either a standalone server or cluster.
 
 ## Requirements
 
+The control host requires the following Python dependencies:
+
+  - `jmespath >= 0.9.0`
+
 This role has been tested on Ansible 2.6.0+ against the following Linux Distributions:
 
   - Amazon Linux 2

molecule/default/molecule.yml

@@ -8,30 +8,30 @@ lint:
   name: yamllint
 platforms:
   - name: node1
-    image: "geerlingguy/docker-${MOLECULE_DISTRO:-centos8}-ansible:latest"
+    image: "${MOLECULE_DISTRO:-geerlingguy/docker-centos8-ansible:latest}"
     command: ${MOLECULE_DOCKER_COMMAND:-""}
     volumes:
       - /sys/fs/cgroup:/sys/fs/cgroup:ro
     privileged: true
-    pre_build_image: true
+    pre_build_image: ${MOLECULE_PREBUILT:-true}
     networks:
       - name: k3snet
   - name: node2
-    image: "geerlingguy/docker-${MOLECULE_DISTRO:-centos8}-ansible:latest"
+    image: "${MOLECULE_DISTRO:-geerlingguy/docker-centos8-ansible:latest}"
     command: ${MOLECULE_DOCKER_COMMAND:-""}
     volumes:
       - /sys/fs/cgroup:/sys/fs/cgroup:ro
     privileged: true
-    pre_build_image: true
+    pre_build_image: ${MOLECULE_PREBUILT:-true}
     networks:
       - name: k3snet
   - name: node3
-    image: "geerlingguy/docker-${MOLECULE_DISTRO:-centos8}-ansible:latest"
+    image: "${MOLECULE_DISTRO:-geerlingguy/docker-centos8-ansible:latest}"
     command: ${MOLECULE_DOCKER_COMMAND:-""}
     volumes:
       - /sys/fs/cgroup:/sys/fs/cgroup:ro
     privileged: true
-    pre_build_image: true
+    pre_build_image: ${MOLECULE_PREBUILT:-true}
     networks:
       - name: k3snet
 provisioner:

tasks/install-docker-amazon.yml

@@ -1,10 +0,0 @@
----
-
-- name: Ensure docker is installed using amazon-linux-extras
-  command: amazon-linux-extras install docker
-  args:
-    creates: /etc/docker
-  notify:
-    - restart docker
-
-- meta: flush_handlers

tasks/install-docker-opensuse-leap.yml

@@ -0,0 +1,10 @@
+---
+
+- name: Ensure docker is installed using Zypper
+  zypper:
+    name: docker
+    state: present
+  notify:
+    - restart docker
+
+- meta: flush_handlers

tasks/install-docker-prerequisites-redhat.yml

@@ -12,6 +12,13 @@
   retries: 3
   delay: 10
 
+- name: Check to see if Docker repository is available for this distribution
+  uri:
+    url: "https://download.docker.com/linux/{{ ansible_distribution | lower }}/{{ ansible_distribution_major_version }}"
+  register: k3s_redhat_repo_check
+  failed_when: false
+  changed_when: false
+
 - name: Ensure Docker repository is installed and configured
   yum_repository:
     name: docker-ce
@@ -22,3 +29,11 @@
     gpgcheck: true
     state: present
   when: ansible_distribution | lower not in ['amazon']
+        and k3s_redhat_repo_check.status == 200
+
+- name: Ensure Docker repository is installed and configured from file
+  command: yum-config-manager --add-repo=https://download.docker.com/linux/centos/docker-ce.repo
+  args:
+    creates: /etc/yum.repos.d/docker-ce.repo
+  when: ansible_distribution | lower not in ['amazon']
+        and k3s_redhat_repo_check.status != 200

tasks/install-docker-prerequisites-suse.yml

@@ -0,0 +1 @@
+---

tasks/install-docker-suse.yml

@@ -0,0 +1,10 @@
+---
+
+- name: Ensure docker is installed using Zypper
+  zypper:
+    name: docker
+    state: present
+  notify:
+    - restart docker
+
+- meta: flush_handlers

tasks/main.yml

@@ -11,10 +11,10 @@
   when: k3s_use_docker
         and ((k3s_control_workers)
            or (not k3s_control_workers and not k3s_control_node))
-        and ansible_distribution | lower not in ['amazon']
+        and ansible_distribution | replace(" ", "-") | lower not in ['amazon', 'suse', 'opensuse-leap']
 
-- include_tasks: install-docker-{{ ansible_distribution | lower }}.yml
-  when: ansible_distribution | lower in ['amazon']
+- include_tasks: install-docker-{{ ansible_distribution | replace(" ", "-") | lower }}.yml
+  when: ansible_distribution | replace(" ", "-") | lower in ['amazon', 'suse', 'opensuse-leap']
 
 - import_tasks: get-version.yml
   when: k3s_release_version is not defined or not k3s_release_version