Refactor RSK nginx sites for proxy/lb usage

site-cookbooks/kosmos_rsk/resources/nginx_site.rb

@@ -0,0 +1,37 @@
+resource_name :rskj_nginx_site
+provides :rskj_nginx_site
+
+property :network, String, required: true, name_property: true
+property :domain, String, required: true
+
+action :create do
+  include_recipe "kosmos-nginx"
+
+  network = new_resource.network
+  domain  = new_resource.domain
+
+  nginx_certbot_site domain
+
+  upstream_hosts = []
+  search(:node, "role:rskj_#{network}").each do |node|
+    upstream_hosts << node["knife_zero"]["host"]
+  end
+  upstream_hosts.push("localhost") if upstream_hosts.empty?
+
+  template "#{node['nginx']['dir']}/sites-available/#{domain}" do
+    source "nginx_conf_rskj.erb"
+    owner 'www-data'
+    mode 0640
+    variables domain: domain,
+              upstream_name: "rskj_#{network}",
+              upstream_hosts: upstream_hosts,
+              upstream_port: "4444",
+              ssl_cert: "/etc/letsencrypt/live/#{domain}/fullchain.pem",
+              ssl_key: "/etc/letsencrypt/live/#{domain}/privkey.pem"
+    notifies :reload, 'service[nginx]', :delayed
+  end
+
+  nginx_site domain do
+    action :enable
+  end
+end