Issue #12: Add basic standalone certbot cert generation.

tasks/create-cert-standalone.yml

@@ -0,0 +1,23 @@
+---
+- name: Check if certificate already exists.
+  stat:
+    path: /etc/letsencrypt/live/{{ item.domains | first }}/cert.pem
+  register: letsencrypt_cert
+
+- name: Stop services to allow certbot to generate a cert.
+  service:
+    name: "{{ item }}"
+    state: stopped
+  when: not letsencrypt_cert.stat.exists
+  with_items: certbot_create_stop_services
+
+- name: Generate new certificate if one doesn't exist.
+  shell: "{{ certbot_create_command }}"
+  when: not letsencrypt_cert.stat.exists
+
+- name: Start services after cert has been generated.
+  service:
+    name: "{{ item }}"
+    state: started
+  when: not letsencrypt_cert.stat.exists
+  with_items: certbot_create_stop_services

tasks/main.yml

@@ -7,5 +7,9 @@
 - include: install-from-source.yml
   when: certbot_install_from_source
 
+- include: create-cert-standalone.yml
+  with_items: "{{ certbot_certs }}"
+  when: certbot_create_if_missing
+
 - include: renew-cron.yml
   when: certbot_auto_renew