Fix the Systemd unit for discourse

Switch the systemd unit to a oneshot type

site-cookbooks/kosmos_discourse/recipes/default.rb

@@ -35,19 +35,24 @@ git deploy_path do
   revision "master"
 end
 
-# FIXME: The systemd unit does not work
-template "/etc/systemd/system/discourse.service" do
-  source "discourse.service.erb"
-  variables deploy_path: deploy_path
-  notifies :run, "execute[systemctl daemon-reload]", :immediately
-end
-
-execute "systemctl daemon-reload" do
-  action :nothing
-end
-
-service "discourse" do
-  action [:enable]
+systemd_unit "discourse.service" do
+  content({Unit: {
+             Description: "discourse service with docker compose",
+             Requires: "docker.service",
+             After: "docker.service",
+           },
+           Service: {
+             Type: "oneshot",
+             RemainAfterExit: "true",
+             WorkingDirectory: deploy_path,
+             Environment: "SUPERVISED=true",
+             ExecStart: "#{deploy_path}/launcher start app",
+             ExecStop: "#{deploy_path}/launcher stop app",
+           },
+           Install: {
+             WantedBy: "multi-user.target"
+           }})
+  action [:create, :enable]
 end
 
 template "#{node['nginx']['dir']}/sites-available/#{domain}" do

site-cookbooks/kosmos_discourse/templates/discourse.service.erb

@@ -1,23 +0,0 @@
-[Unit]
-Description=discourse service with docker compose
-Requires=docker.service
-After=docker.service
-
-[Service]
-Restart=always
-
-WorkingDirectory=<%= @deploy_path %>
-
-Environment="SUPERVISED=true"
-
-ExecStartPre=<%= @deploy_path %>/launcher stop app
-# Remove all containers that have stopped for > 24 hours
-ExecStartPre=<%= @deploy_path %>/launcher cleanup
-
-ExecStart=<%= @deploy_path %>/launcher start app
-
-ExecStop=<%= @deploy_path %>/launcher stop app
-
-[Install]
-WantedBy=multi-user.target
-