Add Server Info card

bin/malpd

@@ -166,6 +166,52 @@ def read_virtual_machines
   end
 end
 
+def read_server_info
+  info = { "type" => "server" }
+
+  if File.exist?("/etc/os-release")
+    File.readlines("/etc/os-release").each do |line|
+      if line =~ /^PRETTY_NAME="(.+)"$/
+        info["os_name"] = $1
+        break
+      end
+    end
+  end
+
+  out = `stat -c %W / 2>/dev/null`.strip
+  if out =~ /^\d+$/ && out.to_i > 0
+    info["install_date"] = Time.at(out.to_i).strftime("%Y-%m-%d")
+  elsif File.exist?("/etc/machine-id")
+    info["install_date"] = File.mtime("/etc/machine-id").strftime("%Y-%m-%d")
+  end
+
+  if File.exist?("/proc/cpuinfo")
+    cpuinfo = File.read("/proc/cpuinfo")
+    if cpuinfo =~ /^model name\s*:\s*(.+)$/
+      info["cpu_model"] = $1.strip
+    end
+    cores = cpuinfo.scan(/^processor\s*:/).size
+    info["cpu_cores"] = cores if cores > 0
+  end
+
+  if File.exist?("/proc/meminfo")
+    mem = {}
+    File.read("/proc/meminfo").each_line do |line|
+      if line =~ /^(\w+):\s+(\d+)/
+        mem[$1] = $2.to_i * 1024
+      end
+    end
+    if (total = mem["MemTotal"])
+      available = mem["MemAvailable"] ||
+        (mem["MemFree"].to_i + mem["Buffers"].to_i + mem["Cached"].to_i)
+      info["mem_total"] = total
+      info["mem_used"]  = total - available
+    end
+  end
+
+  info
+end
+
 def read_ups
   out = `apcaccess 2>/dev/null`
   return nil unless $?.success? && !out.empty?
@@ -232,6 +278,8 @@ def handle_info(conn)
   info.concat(read_filesystems)
   info.concat(read_virtual_machines)
 
+  info << read_server_info
+
   if (ups = read_ups)
     info << ups
   end