initial checkin

README.md

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+# Ansible Role: docker
+
+## Introduction
+
+This role will install docker on the target host.
+
+This role should work on both Ubuntu and CentOS based hosts.
+
+NOTE:
+
+The following variables must be specified in the calling playbook (usually
+done by doing a 'gather_facts' action);
+
+{{ ansible_distribution }}
+

tasks/main.yml

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+---
+###########################################################################
+#
+# This playbook is based on the steps presented at;
+#   - https://docs.docker.com/engine/install/ubuntu/
+#   - https://docs.docker.com/engine/install/centos/
+#
+###########################################################################
+# tasks file for main.yml
+
+############################################################
+- name: Ensure old docker packages are removed (Ubuntu)
+  apt:
+    name:
+      - docker
+      - docker-engine
+      - docker.io
+      - containerd
+      - runc
+    state: absent
+  when: ansible_distribution == "Ubuntu" or ansible_distribution == "Pop!_OS"
+
+############################################################
+- name: Ensure old docker packages are removed (CentOS)
+  yum:
+    name:
+      - docker-client
+      - docker-client-latest
+      - docker-common
+      - docker-latest
+      - docker-latest-logrotate
+      - docker-logrotate
+      - docker-engine
+      - podman
+      - runc
+      - buildah
+    state: absent
+  when: ansible_distribution == "CentOS"
+
+############################################################
+- name: Ensure required supporting packages are installed (Ubuntu)
+  apt:
+    name:
+      - apt-transport-https
+      - ca-certificates
+      - curl
+      - gnupg-agent
+      - software-properties-common
+    state: present
+  when: ansible_distribution == "Ubuntu" or ansible_distribution == "Pop!_OS"
+
+############################################################
+- name: Ensure required supporting packages are installed (CentOS)
+  yum:
+    name:
+      - yum-utils
+    state: present
+  when: ansible_distribution == "CentOS"
+
+############################################################
+- name: Retrieve docker's official GPG key (Ubuntu)
+  shell:
+    cmd: >
+      /usr/bin/curl -fsSL
+      https://download.docker.com/linux/ubuntu/gpg
+      | /usr/bin/apt-key add -
+  when: ansible_distribution == "Ubuntu" or ansible_distribution == "Pop!_OS"
+
+############################################################
+- name: Add the stable docker repository (Ubuntu)
+  shell:
+    cmd: >
+      /usr/bin/add-apt-repository
+      "deb https://download.docker.com/linux/ubuntu
+      {{ ansible_distribution_release }}
+      stable"
+  when: ansible_distribution == "Ubuntu" or ansible_distribution == "Pop!_OS"
+
+############################################################
+- name: Add the stable docker repository (CentOS)
+  shell:
+    cmd: >
+      /usr/bin/yum-config-manager
+      --add-repo
+      https://download.docker.com/linux/centos/docker-ce.repo
+  when: ansible_distribution == "CentOS"
+
+############################################################
+- name: Update package cache (Ubuntu)
+  apt:
+    update-cache: true
+  when: ansible_distribution == "Ubuntu" or ansible_distribution == "Pop!_OS"
+
+############################################################
+- name: Install docker packages (Ubuntu)
+  apt:
+    name:
+      - docker-ce
+      - docker-ce-cli
+      - containerd.io
+    state: present
+  when: ansible_distribution == "Ubuntu" or ansible_distribution == "Pop!_OS"
+
+############################################################
+- name: Install docker packages (CentOS)
+  yum:
+    name:
+      - docker-ce
+      - docker-ce-cli
+      - containerd.io
+    state: present
+  when: ansible_distribution == "CentOS"
+
+############################################################
+- name: Add user to docker group
+  user:
+    name: "{{ username }}"
+    groups: docker
+    append: true
+
+############################################################
+- name: Enable docker daemon
+  systemd:
+    name: docker
+    enabled: true
+
+############################################################
+# using the pip3 command rather than the pip ansible module
+# because ansible can get in a weird state depending on the
+# python version used on the target host (python 2 on CentOS 7
+# vs python 3 otherwise)
+- name: Install docker python package
+  shell:
+    cmd: pip3 install docker
+
+############################################################
+- name: Install docker-compose
+  shell:
+    cmd: curl -L "https://github.com/docker/compose/releases/download/{{ docker_compose_version }}/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
+
+############################################################
+- name: Set permissions on /usr/local/bin/docker-compose
+  file:
+    path: /usr/local/bin/docker-compose
+    mode: "0755"
+
+# EOF