Switch to a systemd unit Chef resource

site-cookbooks/sockethub/recipes/default.rb

@@ -27,11 +27,15 @@
 include_recipe 'kosmos-nodejs'
 include_recipe 'kosmos-redis'
 
-group "sockethub" do
+user  = "sockethub"
+group = "sockethub"
+entry = "/usr/bin/sockethub"
+
+group group do
   gid 7625
 end
 
-user "sockethub" do
+user user do
   comment     "sockethub user"
   uid         7625
   gid         7625
@@ -57,21 +61,25 @@ unless node['sockethub']['debug_logs'].nil?
   environment_variables['DEBUG'] = node['sockethub']['debug_logs']
 end
 
-template "/lib/systemd/system/sockethub_nodejs.service" do
-  source 'nodejs.systemd.service.erb'
-  owner 'root'
-  group 'root'
-  mode '0644'
-  variables(
-    user: "sockethub",
-    group: "sockethub",
-    entry: "/usr/bin/sockethub",
-    environment: environment_variables
-  )
-  notifies :run, "execute[systemctl daemon-reload]", :delayed
-  notifies :restart, "service[sockethub_nodejs]", :delayed
-end
+environment = environment_variables.map{|k, v| "'#{k}=#{v}'"}.join(' ')
 
-service "sockethub_nodejs" do
-  action [:enable, :start]
+systemd_unit "sockethub_nodejs.service" do
+  content <<-EOF
+[Unit]
+Description=Start sockethub
+Requires=redis-server.service
+After=redis-server.service
+
+[Service]
+ExecStart=#{entry}
+User=#{user}
+Group=#{group}
+Environment=#{environment}
+Restart=always
+
+[Install]
+WantedBy=multi-user.target
+  EOF
+  triggers_reload true
+  action [:create, :enable, :start]
 end

site-cookbooks/sockethub/templates/default/nodejs.systemd.service.erb

@@ -1,16 +0,0 @@
-[Unit]
-Description=Start nodejs app
-Requires=redis-server.service
-After=redis-server.service
-
-[Service]
-ExecStart=<%= @entry %>
-User=<%= @user %>
-Group=<%= @group %>
-<% unless @environment.empty? -%>
-Environment=<% @environment.each do |key, value| -%>'<%= key %>=<%= value %>' <% end %>
-<% end -%>
-Restart=always
-
-[Install]
-WantedBy=multi-user.target