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Let's Encrypt Nginx setup with Ansible
Ansible playbook to setup HTTPS using Let's encrypt on nginx.
The Ansible playbook installs everything needed to serve static files from a nginx server over HTTPS.
The server pass A rating on [SSL Labs](https://www.ssllabs.com/).
To use:
1. Install [Ansible](https://www.ansible.com/)
2. Setup an Ubuntu 16.04 server accessible over ssh
3. Create `/etc/ansible/hosts` according to template below and change example.com to your domain
4. Copy the rest of the files to an empty directory (`playbook.yml` in the root of that folder and the rest in the `templates` subfolder)
5. Run `ansible-playbook playbook.yml`
6. Copy your (static HTML) code to `/var/www/example.com` (`example.com` replaced with your domain)
7. Restart nginx (`systemctl restart nginx`)
[letsencrypt]
example.com ansible_user=root letsencrypt_email=me@example.com domain_name=example.com
---
- hosts: letsencrypt
become: true
gather_facts: no
pre_tasks:
- raw: apt-get install -y python-simplejson
tasks:
- name: Upgrade system
apt: upgrade=dist update_cache=yes
- name: Install nginx
apt: name=nginx state=latest
- name: install letsencrypt
apt: name=letsencrypt state=latest
- name: create letsencrypt directory
file: name=/var/www/letsencrypt state=directory
- name: Remove default nginx config
file: name=/etc/nginx/sites-enabled/default state=absent
- name: Install system nginx config
template:
src: templates/nginx.conf.j2
dest: /etc/nginx/nginx.conf
- name: Install nginx site for letsencrypt requests
template:
src: templates/nginx-http.j2
dest: /etc/nginx/sites-enabled/http
- name: Reload nginx to activate letsencrypt site
service: name=nginx state=restarted
- name: Create letsencrypt certificate
shell: letsencrypt certonly -n --webroot -w /var/www/letsencrypt -m {{ letsencrypt_email }} --agree-tos -d {{ domain_name }}
args:
creates: /etc/letsencrypt/live/{{ domain_name }}
- name: Generate dhparams
shell: openssl dhparam -out /etc/nginx/dhparams.pem 2048
args:
creates: /etc/nginx/dhparams.pem
- name: Install nginx site for specified site
template:
src: templates/nginx-le.j2
dest: /etc/nginx/sites-enabled/le
- name: Reload nginx to activate specified site
service: name=nginx state=restarted
- name: Add letsencrypt cronjob for cert renewal
cron:
name: letsencrypt_renewal
special_time: weekly
job: letsencrypt --renew certonly -n --webroot -w /var/www/letsencrypt -m {{ letsencrypt_email }} --agree-tos -d {{ domain_name }} && service nginx reload
server_tokens off;
server {
listen 80 default_server;
server_name {{ domain_name }};
location /.well-known/acme-challenge {
root /var/www/letsencrypt;
try_files $uri $uri/ =404;
}
location / {
rewrite ^ https://{{ domain_name }}$request_uri? permanent;
}
}
add_header X-Frame-Options SAMEORIGIN;
add_header X-Content-Type-Options nosniff;
add_header X-XSS-Protection "1; mode=block";
add_header Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval' https://www.google-analytics.com; img-src 'self' data: https://www.google-analytics.com; style-src 'self' 'unsafe-inline'; font-src 'self'; frame-src 'none'; object-src 'none'";
# HTTPS server
#
server {
listen 443 ssl default deferred;
server_name {{ domain_name }};
ssl on;
ssl_certificate /etc/letsencrypt/live/{{ domain_name }}/fullchain.pem;
ssl_certificate_key /etc/letsencrypt/live/{{ domain_name }}/privkey.pem;
ssl_trusted_certificate /etc/letsencrypt/live/{{ domain_name }}/fullchain.pem;
ssl_session_cache shared:SSL:50m;
ssl_session_timeout 5m;
ssl_stapling on;
ssl_stapling_verify on;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_ciphers "ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA:ECDHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES256-GCM-SHA384:AES128-GCM-SHA256:AES256-SHA256:AES128-SHA256:AES256-SHA:AES128-SHA:DES-CBC3-SHA:HIGH:!aNULL:!eNULL:!EXPORT:!DES:!MD5:!PSK:!RC4";
ssl_dhparam /etc/nginx/dhparams.pem;
ssl_prefer_server_ciphers on;
root /var/www/{{ domain_name }};
index index.html index.htm;
location / {
try_files $uri $uri/ =404;
}
}
user www-data;
worker_processes 4;
pid /run/nginx.pid;
events {
worker_connections 768;
}
http {
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 65;
types_hash_max_size 2048;
include /etc/nginx/mime.types;
default_type application/octet-stream;
access_log /var/log/nginx/access.log;
error_log /var/log/nginx/error.log;
gzip on;
gzip_disable "msie6";
include /etc/nginx/conf.d/*.conf;
include /etc/nginx/sites-enabled/*;
}
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