Use DNS validation to generate/renew the TLS cert

site-cookbooks/sockethub/recipes/proxy.rb

@@ -26,8 +26,41 @@
 
 include_recipe 'sockethub::_firewall'
 include_recipe 'kosmos-nginx'
+include_recipe "kosmos-base::letsencrypt"
+
 server_name = node['sockethub']['nginx']['server_name']
 
+nginx_post_hook = <<-EOF
+#!/usr/bin/env bash
+
+set -e
+
+systemctl reload nginx
+EOF
+
+file "/etc/letsencrypt/renewal-hooks/post/nginx" do
+  content nginx_post_hook
+  mode 0755
+  owner "root"
+  group "root"
+end
+
+gandi_api_data_bag_item = data_bag_item('credentials', 'gandi_api_5apps')
+
+template "/root/gandi_dns_certbot_hook.sh" do
+  variables gandi_api_key: gandi_api_data_bag_item["key"]
+  mode 0770
+end
+
+# Generate a Let's Encrypt cert (only if no cert has been generated before).
+# The systemd timer will take care of renewing
+execute "letsencrypt cert for sockethub" do
+  command "certbot certonly --manual --preferred-challenges dns --manual-public-ip-logging-ok --agree-tos --manual-auth-hook \"/root/gandi_dns_certbot_hook.sh auth\" --manual-cleanup-hook \"/root/gandi_dns_certbot_hook.sh cleanup\" --deploy-hook \"/etc/letsencrypt/renewal-hooks/post/nginx\" --email ops@kosmos.org -d #{server_name}  -n"
+  not_if do
+    File.exist?("/etc/letsencrypt/live/#{server_name}/fullchain.pem")
+  end
+end
+
 template "#{node['nginx']['dir']}/sites-available/#{server_name}" do
   source 'nginx_conf_sockethub.erb'
   owner 'www-data'
@@ -40,13 +73,7 @@ template "#{node['nginx']['dir']}/sites-available/#{server_name}" do
   notifies :reload, 'service[nginx]', :delayed
 end
 
-# Legacy vhost
-nginx_site "sockethub" do
-  action :disable
-end
-
 nginx_site server_name do
   action :enable
 end
 
-nginx_certbot_site server_name