LetsEncryptNGinx.yml

# Because the public ip of the NGinx server
# is tossed and replaced with the elastic IP
# we have to use the 'nginx_elastic_ip' 
# role
---
- hosts: nginx_elastic_ip
  become: yes
  vars:
    website_server_fqdn: 127.0.0.1
    dev_server_fqdn: 127.0.0.1
    test_server_fqdn: 127.0.0.1
    prod_app_lb_fqdn: 127.0.0.1
    cert_bot_email: admin@mywebsite.com
    cert_domains:   
      - www.mywebsite.com
      - mywebsite.com
      - prod.mywebsite.com
      - test.mywebsite.com
      - dev.mywebsite.com
      
  tasks:       
    - name: "FIX: Ubuntu 16.04 LTS doesn't come with certain modules, required by ansible"
      raw: apt-get install python-minimal aptitude -y
      changed_when: false
      
    - name: Install Python 2.x
      raw: test -e /usr/bin/python || (apt update && apt install -y python-simplejson)
      register: test
      changed_when: test.stdout
      
    - name: "Update the apt caches"
      raw: apt-get update
      changed_when: false
      
    - name: Handle the grub menace
      raw: >
          DEBIAN_FRONTEND=noninteractive apt-get -y -o 
          DPkg::options::="--force-confdef" -o 
          DPkg::options::="--force-confold"  
          install grub-pc  
      changed_when: false
      
    - name: Upgrade packages
      apt: upgrade=dist      
      
    - name: Install required software
      apt: name={{ item }} state=present
      sudo: yes
      with_items:
        - lua-zlib
        - nginx-extras
        - software-properties-common
        - fail2ban
      register: nginxinstalled
      notify:
        - start nginx

    - name: Copy Nginx Lua Deflate
      copy: src=~/environment/ansible/NGinx/resources/inflate_body.lua dest=/usr/share/nginx/inflate_body.lua mode=644
      notify:
        - restart nginx

    - name: Add NGinx Site Config
      when: nginxinstalled|success
      register: nginxconfig
      template: src=~/environment/ansible/NGinx/resources/nginx-template.conf.j2 dest=/etc/nginx/nginx.conf owner=root group=root
      notify:
        - restart nginx
    
    - name: Add the Certbot repository
      apt_repository:
        repo: 'ppa:certbot/certbot' 
        update_cache: yes
      
    - name: Install the certbot software
      apt: name={{ item }} state=present
      sudo: yes
      with_items:
        - python-certbot-nginx
        
    - name: Check if certificate already exists.
      stat:
        path: /etc/letsencrypt/live/{{ item }}/cert.pem
      with_items: "{{ cert_domains }}"  
      register: letsencrypt_cert

    - debug:
        var: letsencrypt_cert
        verbosity: 2

    - name: Stop services to allow certbot to generate a cert.
      service:
        name: nginx
        state: stopped
      when:
        - not item.stat.exists
      with_items: "{{ letsencrypt_cert.results }}"

    - name: Register the certbot software
      raw: certbot register --agree-tos --email {{cert_bot_email}} -n
      register: certbot_register
      changed_when: certbot_register.stdout
      ignore_errors: yes
      
    - debug:
        msg: "{{ letsencrypt_cert.results | selectattr('stat', 'defined') | map(attribute='stat') | selectattr('exists', 'equalto', False) | list | length > 0 }}"
      
    - name: Create the certs
      raw: > 
            certbot --nginx --noninteractive --agree-tos --redirect --expand -d {{ cert_domains.0 }} -d {{ cert_domains.1 }} -d {{ cert_domains.2 }} -d {{ cert_domains.3 }} -d {{ cert_domains.4 }}
      register: certbot_create
      when:
        - letsencrypt_cert.results | selectattr('stat', 'defined') | map(attribute='stat') | selectattr('exists', "equalto", False) | list | length > 0

    - name: Test include role
      include_role:
        name: jnv.unattended-upgrades
      vars:
        unattended_origins_patterns:
        - 'origin=Ubuntu,archive=${distro_codename}-security'
        - 'o=Ubuntu,a=${distro_codename}-updates'
        unattended_package_blacklist: [nginx, nginx-extras]
        unattended_mail: 'admin@mywebsite.com'

  handlers:
    - name: restart nginx
      service: name=nginx state=restarted  
    - name: start nginx
      service: name=nginx state=started