Set the email sender in unattended-upgrades config

Mailgun was rejecting the email as it did not have a valid sender
(the default, which is something like root@akkounts-1). Unattended
upgrades have been working properly, now we will start getting emails
next time an upgrade is done on akkounts-1.

doc/mastodon.md

@@ -1,15 +0,0 @@
-# Mastodon
-
-Running on kosmos.social
-
-## Ops
-
-### Enable maintance mode
-
-Return a 503 and maintance page for all requests:
-
-    knife ssh -p2222 -a knife_zero.host "role:openresty_proxy" "sudo cp -p /var/www/maintenance.html /var/www/kosmos.social/public/ && sudo systemctl reload openresty"
-
-### Stop maintenance mode
-
-    knife ssh -p2222 -a knife_zero.host "role:openresty_proxy" "sudo rm /var/www/kosmos.social/public/maintenance.html && sudo systemctl reload openresty"

site-cookbooks/kosmos-base/recipes/default.rb

@@ -30,6 +30,9 @@ include_recipe 'ntp'
 include_recipe 'kosmos-base::journald_conf'
 include_recipe 'kosmos-base::systemd_emails'
 
+node.override["apt"]["unattended_upgrades"]["enable"] = true
+node.override["apt"]["unattended_upgrades"]["mail_only_on_error"] = false
+node.override["apt"]["unattended_upgrades"]["sender"] = "ops@kosmos.org"
 node.override["apt"]["unattended_upgrades"]["allowed_origins"] = [
   "${distro_id}:${distro_codename}-security",
   "${distro_id}:${distro_codename}-updates"

site-cookbooks/kosmos-bitcoin/recipes/btcpay.rb

@@ -21,7 +21,6 @@ bash 'build_btcpay' do
     systemctl stop btcpayserver.service
     ./build.sh
   EOH
-  environment "DOTNET_CLI_TELEMETRY_OPTOUT" => 1
   action :nothing
   notifies :restart, "service[btcpayserver]", :delayed
 end
@@ -88,7 +87,7 @@ systemd_unit 'btcpayserver.service' do
       Group: node['bitcoin']['usergroup'],
       Type: 'simple',
       WorkingDirectory: node['btcpay']['source_dir'],
-      Environment: "'BTCPAY_EXPLORERPOSTGRES=#{nbxpg_connect}' 'DOTNET_CLI_TELEMETRY_OPTOUT=1'",
+      Environment: defined?(nbxpg_connect) ? "'BTCPAY_EXPLORERPOSTGRES=#{nbxpg_connect}'" : '',
       ExecStart: "#{node['btcpay']['source_dir']}/run.sh --conf=#{node['btcpay']['config_path']}",
       PIDFile: '/run/btcpayserver/btcpayserver.pid',
       Restart: 'on-failure',
@@ -104,8 +103,6 @@ systemd_unit 'btcpayserver.service' do
   verify false
   triggers_reload true
   action [:create]
-  # reload is not applicable
-  notifies :restart, "service[btcpayserver]", :delayed
 end
 
 service "btcpayserver" do