Install official client

tasks/install.yml

+---
+# file: roles/letsencrypt/tasks/install.yml
+
+- name: "Checkout LetsEncrypt Sources"
+  git:
+    accept_hostkey: yes
+    repo: 'https://github.com/letsencrypt/letsencrypt'
+    dest: '/opt/letsencrypt'
+
+- name: "Initialize LetsEncrypt"
+  shell: /opt/letsencrypt/letsencrypt-auto --help

tasks/main.yml

+---
+# file: roles/letsencrypt/tasks/main.yml
 
-cd /opt
-git clone https://github.com/letsencrypt/letsencrypt
-# Run once, that downloads and configures everything needed
+- name: "Check LetsEncrypt Requirement"
+  shell: ls /opt/letsencrypt/letsencrypt-auto
+  register: letsencrypt_available
+  failed_when: false
 
-
-#without sudo
-/opt/letsencrypt/letsencrypt-auto --help
-/opt/letsencrypt/letsencrypt-auto -d admin.new.crebifax.ca --text --email admin@paragon-es.de --agree-tos --redirect
-
-/opt/letsencrypt/letsencrypt-auto certonly -d mon1.paragon-es.de --text --email admin@paragon-es.de --agree-tos --redirect
+- include: install.yml
+  when: letsencrypt_available is defined and letsencrypt_available.stdout != '/opt/letsencrypt/letsencrypt-auto'