Merge pull request #19 from exploide/package-install

Install Certbot with package

.travis.yml

@@ -4,9 +4,12 @@ services: docker
 env:
   - distro: centos7
   - distro: centos6
+    playbook: test-source-install.yml
   - distro: ubuntu1604
   - distro: ubuntu1404
-  - distro: ubuntu1204
+    playbook: test-source-install.yml
+  - distro: debian8
+    playbook: test-source-install.yml
 
 script:
   # Download test shim.

README.md

@@ -2,30 +2,39 @@
 
 [![Build Status](https://travis-ci.org/geerlingguy/ansible-role-certbot.svg?branch=master)](https://travis-ci.org/geerlingguy/ansible-role-certbot)
 
-Installs Certbot (for Let's Encrypt) for RHEL/CentOS or Debian/Ubuntu.
+Installs and configures Certbot (for Let's Encrypt).
 
 ## Requirements
 
-Certbot requires Git to be installed. You can install Git using the `geerlingguy.git` role.
+If one wants to install Certbot from upstream Git repository instead of distribution's package management, this role requires Git to be installed. You can install Git using the `geerlingguy.git` role.
 
 ## Role Variables
 
-    certbot_repo: https://github.com/certbot/certbot.git
-    certbot_version: master
-    certbot_keep_updated: yes
-
-Certbot code repository options. This role clones the agent from the configured repo, then makes the `certbot-auto` script executable.
-
-    certbot_dir: /opt/certbot
-
-The directory inside which Certbot will be cloned.
+The variable `certbot_install_from_source` controls whether to install Certbot from Git or package management. The latter is the default, so the variable defaults to `no`.
 
     certbot_auto_renew: true
     certbot_auto_renew_user: "{{ ansible_user }}"
     certbot_auto_renew_hour: 3
     certbot_auto_renew_minute: 30
 
-By default, this role configures a cron job to run under the provided user account at the given hour and minute, every day. The defaults run `certbot-auto renew` via cron every day at 03:30:00 by the user you use in your Ansible playbook. It's preferred that you set a custom user/hour/minute so the renewal is during a low-traffic period and done by a non-root user account.
+By default, this role configures a cron job to run under the provided user account at the given hour and minute, every day. The defaults run `certbot renew` (or `certbot-auto renew`) via cron every day at 03:30:00 by the user you use in your Ansible playbook. It's preferred that you set a custom user/hour/minute so the renewal is during a low-traffic period and done by a non-root user account.
+
+### Variables Relavant for Source Installation from Git
+
+Instead of installing Certbot from distribution's package management, installing from Git repository is also an option. This might be useful in several cases, but especially when older LTS distributions don't ship Certbot yet. These include CentOS < 7, Ubuntu < 16.10 and Debian < 8. Debian 8 includes Certbot package when packports repository is enabled.
+
+In case source installation from Git is intended, the following variables are relevant:
+
+    certbot_install_from_source: yes
+    certbot_repo: https://github.com/certbot/certbot.git
+    certbot_version: master
+    certbot_keep_updated: yes
+
+Certbot Git repository options. This clones the configured `certbot_repo`, respecting the `certbot_version` setting. If `certbot_keep_updated` is set to `yes`, the repository is updated every time this role runs.
+
+    certbot_dir: /opt/certbot
+
+The directory inside which Certbot will be cloned.
 
 ## Dependencies
 
@@ -34,20 +43,20 @@ None.
 ## Example Playbook
 
     - hosts: servers
-    
+
       vars:
         certbot_auto_renew_user: your_username_here
         certbot_auto_renew_minute: 20
         certbot_auto_renew_hour: 5
-    
+
       roles:
         - geerlingguy.certbot
 
-After installation, you can create certificates using the `certbot-auto` script, which by default is installed inside the configured `certbot_dir`, so by default, `/opt/certbot/certbot-auto`. Here are some example commands to configure certificates with Certbot:
+After installation, you can create certificates using the `certbot` (or `certbot-auto`) script, which by default is installed inside the configured `certbot_dir` (when using Git). Here are some example commands to configure certificates with Certbot:
 
     # Automatically add certs for all Apache virtualhosts (use with caution!).
     /opt/certbot/certbot-auto --apache
-    
+
     # Generate certs, but don't modify Apache configuration (safer).
     /opt/certbot/certbot-auto --apache certonly
 

defaults/main.yml

@@ -1,10 +1,11 @@
 ---
 # Where to get Certbot.
+certbot_install_from_source: no
 certbot_repo: https://github.com/certbot/certbot.git
 certbot_version: master
 certbot_keep_updated: yes
 
-# Where to put Certbot.
+# Where to put Certbot when cloning from Git.
 certbot_dir: /opt/certbot
 
 # How to keep Certbot certs up to date.

meta/main.yml

@@ -3,21 +3,24 @@ dependencies: []
 
 galaxy_info:
   author: geerlingguy
-  description: "Certbot (for Let's Encrypt) for RHEL/CentOS and Debian/Ubuntu."
+  description: "Installs and configures Certbot (for Let's Encrypt)."
   company: "Midwestern Mac, LLC"
   license: "license (BSD, MIT)"
-  min_ansible_version: 1.8
+  min_ansible_version: 2.0
   platforms:
     - name: EL
       versions:
         - 6
         - 7
+    - name: Fedora
+      versions:
+        - all
     - name: Ubuntu
       versions:
-      - all
+        - all
     - name: Debian
       versions:
-      - all
+        - all
   galaxy_tags:
     - networking
     - system

tasks/include-vars.yml

@@ -0,0 +1,8 @@
+---
+- name: Load a variable file based on the OS type, or a default if not found.
+  include_vars: "{{ item }}"
+  with_first_found:
+    - "{{ ansible_distribution }}-{{ ansible_distribution_version }}.yml"
+    - "{{ ansible_distribution }}.yml"
+    - "{{ ansible_os_family }}.yml"
+    - "default.yml"

tasks/install-from-source.yml

@@ -0,0 +1,17 @@
+---
+- name: Clone Certbot into configured directory.
+  git:
+    repo: "{{ certbot_repo }}"
+    dest: "{{ certbot_dir }}"
+    version: "{{ certbot_version }}"
+    update: "{{ certbot_keep_updated }}"
+    force: yes
+
+- name: Set Certbot script variable.
+  set_fact:
+    certbot_script: "{{ certbot_dir }}/certbot-auto"
+
+- name: Ensure certbot-auto is executable.
+  file:
+    path: "{{ certbot_script }}"
+    mode: 0755

tasks/install-with-package.yml

@@ -0,0 +1,7 @@
+---
+- name: Install Certbot.
+  package: "name={{ certbot_package }} state=present"
+
+- name: Set Certbot script variable.
+  set_fact:
+    certbot_script: "{{ certbot_package }}"

tasks/main.yml

@@ -1,22 +1,11 @@
 ---
-- name: Clone Certbot into configured directory.
-  git:
-    repo: "{{ certbot_repo }}"
-    dest: "{{ certbot_dir }}"
-    version: "{{ certbot_version }}"
-    update: "{{ certbot_keep_updated }}"
-    force: yes
+- include: include-vars.yml
 
-- name: Ensure certbot-auto is executable.
-  file:
-    path: "{{ certbot_dir }}/certbot-auto"
-    mode: 0755
+- include: install-with-package.yml
+  when: not certbot_install_from_source
 
-- name: Add cron job for 'certbot-auto renew' (if configured).
-  cron:
-    name: Certbot automatic renewal.
-    job: "{{ certbot_dir }}/certbot-auto renew --quiet --no-self-upgrade"
-    minute: "{{ certbot_auto_renew_minute }}"
-    hour: "{{ certbot_auto_renew_hour }}"
-    user: "{{ certbot_auto_renew_user }}"
+- include: install-from-source.yml
+  when: certbot_install_from_source
+
+- include: renew-cron.yml
   when: certbot_auto_renew

tasks/renew-cron.yml

@@ -0,0 +1,8 @@
+---
+- name: Add cron job for certbot renewal (if configured).
+  cron:
+    name: Certbot automatic renewal.
+    job: "{{ certbot_script }} renew --quiet --no-self-upgrade"
+    minute: "{{ certbot_auto_renew_minute }}"
+    hour: "{{ certbot_auto_renew_hour }}"
+    user: "{{ certbot_auto_renew_user }}"

tests/test-source-install.yml

@@ -0,0 +1,23 @@
+---
+- hosts: all
+
+  vars:
+    certbot_install_from_source: yes
+
+  pre_tasks:
+    - name: Update apt cache.
+      apt: update_cache=yes cache_valid_time=600
+      when: ansible_os_family == 'Debian'
+      changed_when: false
+
+    - name: Install cron (RedHat).
+      yum: name=cronie state=present
+      when: ansible_os_family == 'RedHat'
+
+    - name: Install cron (Debian).
+      apt: name=cron state=present
+      when: ansible_os_family == 'Debian'
+
+  roles:
+    - geerlingguy.git
+    - role_under_test

tests/test.yml

@@ -16,5 +16,4 @@
       when: ansible_os_family == 'Debian'
 
   roles:
-    - geerlingguy.git
     - role_under_test

vars/Ubuntu-16.04.yml

@@ -0,0 +1 @@
+certbot_package: letsencrypt

vars/default.yml

@@ -0,0 +1,2 @@
+---
+certbot_package: certbot