Merge pull request #2 from chrisjbowen/master

Added site.go to support website monitoring, updated readme

README.md

@@ -22,6 +22,12 @@ Flags:
   -d, --debug           Print debug logging
   -h, --help            help for spinner
   -t, --tail string     Path to file to tail and pipe to STDOUT.
+
+Service Usage:
+  spinner service [name] [flags]
+
+Site Usage:
+  spinner site [url] [flags]
 ```
 
 

cmd/site.go

@@ -0,0 +1,93 @@
+// Copyright © 2017 Ticketmaster
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cmd
+
+import (
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	s "strings"
+	"time"
+
+	"github.com/spf13/cobra"
+)
+
+var urlFlag string
+
+func queryPage(u string) {
+
+	var fullURL string
+
+	if s.HasPrefix(u, "http://") || s.HasPrefix(u, "https://") {
+		fullURL = u
+	} else {
+		fullURL = "http://" + u
+	}
+
+	fmt.Println("Full URL being monitored:", fullURL)
+	for {
+
+		resp, err := http.Get(fullURL)
+
+		if err != nil {
+			log.Fatal("An error occurred during the request:", err)
+		}
+
+		if resp.StatusCode != 200 {
+			log.Fatal("Status code != 200")
+		} else if debugFlag {
+			log.Println("Status Code:", resp.StatusCode)
+		}
+
+		resp.Body.Close()
+
+		time.Sleep(1000 * time.Millisecond)
+	}
+}
+
+// siteCmd represents the site command
+var siteCmd = &cobra.Command{
+	Use:     "site [url]",
+	Short:   "Watch a Site",
+	Aliases: []string{"url", "address"},
+	Example: "spinner.exe site http://localhost -t c:\\iislog\\W3SVC\\u_extend1.log",
+	Long: `Poll Web Site by Get request and terminate this process if
+the a >300 status code is returned.
+
+Use this as the entrypoint for a container to stop the container if
+the given service stops.`,
+	Run: func(cmd *cobra.Command, args []string) {
+		if len(args) < 1 {
+			fmt.Println("site needs a url for the command")
+			os.Exit(1)
+		}
+		if debugFlag {
+			fmt.Println("with debug")
+		}
+		if tailFile != "" {
+			go TailLog()
+		}
+
+		queryPage(args[0])
+
+	},
+}
+
+func init() {
+	RootCmd.AddCommand(siteCmd)
+
+	//siteCmd.Flags().StringVarP(&urlFlag, "url", "u", "http://localhost/", "Url to watch")
+
+}