Add certbot installation with root cert renew

roles/reverse-proxy/handlers/main.yml

@@ -0,0 +1,5 @@
+---
+- name: Confirm Certbot plugin containment level
+  become: true
+  ansible.builtin.command:
+    cmd: snap set certbot trust-plugin-with-root=ok

roles/reverse-proxy/tasks/main.yml

@@ -19,6 +19,53 @@
   ansible.builtin.apt:
     name: nginx # Creates the "nginx" user as well
     state: present
+# TODO: Remove the default configuration here, we'll keep it for now as an example...
+# TODO: Setup Certbot as it's part of the installation...
+# ---------- CERTBOT INSTALLATION ---------- #
+# See the installation instructions here: https://certbot.eff.org/instructions?ws=nginx&os=debianbuster&tab=wildcard
+- name: Install Certbot
+  become: true
+  community.general.snap:
+    name: certbot
+    classic: true
+    state: present
+  notify: Confirm Certbot plugin containment level
+- name: Flush handlers # Makes sure that the handler runs
+  ansible.builtin.meta: flush_handlers
+- name: Install Certbot DNS Cloudflare plugin
+  become: true
+  community.general.snap:
+    name: certbot-dns-cloudflare
+    classic: true
+    state: present
+- name: Set cloudflare variable
+  ansible.builtin.set_fact:
+    cloudflare_credential_dir_path: "/root/.secrets/certbot"
+    cloudflare_credential_filename: cloudflare.ini
+- name: Create Certbot credential directory
+  become: true
+  ansible.builtin.file:
+    path: "{{ cloudflare_credential_dir_path }}"
+    state: directory
+    mode: '0700'
+- name: Place cloudflare credential in certbot user's file
+  become: true
+  ansible.builtin.template:
+    src: cloudflare.ini.j2
+    dest: "{{ cloudflare_credential_dir_path }}/{{ cloudflare_credential_filename }}"
+    mode: '0400'
+- name: Install the certificate script
+  become: true
+  ansible.builtin.template:
+    src: register_certbot_domain.sh.j2
+    dest: /usr/local/bin/register_certbot_domain.sh
+    mode: '0500'
+- name: Create the root certificate for my domain
+  become: true
+  ansible.builtin.command:
+    cmd: register_certbot_domain.sh kleinendorst.info
+    creates: /etc/letsencrypt/live/kleinendorst.info # The certificate directory
+# END ------ CERTBOT INSTALLATION ------ END #
 - name: Start Nginx
   become: true
   ansible.builtin.systemd:

roles/reverse-proxy/templates/cloudflare.ini.j2

@@ -0,0 +1,2 @@
+# Cloudflare API token used by Certbot
+dns_cloudflare_api_token = {{ dns_cloudflare_api_token }}

roles/reverse-proxy/templates/register_certbot_domain.sh.j2

@@ -0,0 +1,6 @@
+#!/bin/bash
+/snap/bin/certbot certonly \
+        --dns-cloudflare \
+        --dns-cloudflare-credentials '{{ cloudflare_credential_dir_path }}/{{ cloudflare_credential_filename }}' \
+        --agree-tos --test-cert -m {{ administration_email }} \
+        -d $1

roles/reverse-proxy/vars/main/defaults.yml

@@ -1,2 +1,3 @@
 ---
 nginx_user: nginx # Created automatically by the apt installation
+certbot_user: certbot

roles/reverse-proxy/vars/main/vault.yml

@@ -0,0 +1,9 @@
+$ANSIBLE_VAULT;1.1;AES256
+35613135623165306639373939396435656431326134336466636666393637333532623036303831
+6534646334633731313838323138303261663536376330640a376538653563353365336634346338
+34663031643265623838396239383164303865346332366361313839386533363530336361373930
+6438313861353563630a343738383365656531313137613361323636653635393232343738633433
+63356634323264623134313565386362663131313963373433306636383661373930323262353663
+64393433393639346166666433396363313465373032343239633939343830303465633564353130
+37333437643064346233633863346632393266633435396433396563653737386233346231303061
+37623138386233303764

roles/snapcraft/tasks/main.yml

@@ -0,0 +1,11 @@
+---
+- name: Install Snapcraft
+  become: true
+  ansible.builtin.apt:
+    name: snapd
+    state: present
+- name: Install Snap Core
+  become: true
+  community.general.snap:
+    name: core
+    state: present

roles/user/tasks/main.yml

@@ -63,12 +63,16 @@
     regexp: '^plugins=\((.*)(?<!zsh-autosuggestions)\)$'
     line: 'plugins=(\1 zsh-autosuggestions)'
     backrefs: true
-- name: Add Starship eval in ~/.zshrc
+# For some reason snap isn't properly configured and its bin directory isn't added to the $PATH variable.
+# This probably has something to do with the hardening rules, instead we'll fix it here.
+- name: Add Starship config and Snapcraft to ~/.zshrc
   become: true
   become_user: "{{ target_user }}"
   ansible.builtin.blockinfile:
     path: ~/.zshrc
     block: |-
+      # Add Snapcraft to $PATH
+      export PATH=$PATH:/snap/bin
 
       # Starship
       eval "$(starship init zsh)"