Move web port to an attribute

site-cookbooks/kosmos_prometheus/recipes/server.rb

@@ -10,6 +10,8 @@ checksum = node["kosmos_prometheus"]["checksum"]
 tarball = "#{Chef::Config[:file_cache_path]}/prometheus-#{version}.linux-amd64.tar.gz"
 binary_url = "https://github.com/prometheus/prometheus/releases/download/v#{version}/prometheus-#{version}.linux-amd64.tar.gz"
 
+web_port = node["kosmos_prometheus"]["web"]["port"]
+
 group "prometheus"
 
 user "prometheus" do
@@ -110,7 +112,7 @@ systemd_unit "prometheus.service" do
       Type: "simple",
       User: "prometheus",
       Group: "prometheus",
-      ExecStart: "/usr/local/bin/prometheus --config.file=/etc/prometheus/prometheus.yml --storage.tsdb.path=/var/lib/prometheus --storage.tsdb.retention.time=15d --web.listen-address=:9090 --web.enable-lifecycle",
+      ExecStart: "/usr/local/bin/prometheus --config.file=/etc/prometheus/prometheus.yml --storage.tsdb.path=/var/lib/prometheus --storage.tsdb.retention.time=15d --web.listen-address=:#{web_port} --web.enable-lifecycle",
       ExecReload: "/bin/kill -HUP $MAINPID",
       Restart: "on-failure",
       RestartSec: "5",
@@ -128,7 +130,7 @@ service "prometheus" do
 end
 
 firewall_rule "prometheus web" do
-  port 9090
+  port web_port
   source "10.1.1.0/24"
   protocol :tcp
   command :allow