Update go install guide

Add time interval

cachet/config.go

@@ -4,13 +4,14 @@ import (
 	"encoding/json"
 	"flag"
 	"fmt"
-	"github.com/castawaylabs/cachet-monitor/system"
 	"io"
 	"io/ioutil"
 	"log"
 	"net/http"
 	"net/url"
 	"os"
+
+	"github.com/castawaylabs/cachet-monitor/system"
 )
 
 // Static config
@@ -23,6 +24,7 @@ var Logger *log.Logger
 type CachetConfig struct {
 	APIUrl      string     `json:"api_url"`
 	APIToken    string     `json:"api_token"`
+	Interval    int64      `json:"interval"`
 	Monitors    []*Monitor `json:"monitors"`
 	SystemName  string     `json:"system_name"`
 	LogPath     string     `json:"log_path"`

example.config.json

@@ -1,6 +1,7 @@
 {
   "api_url": "https://demo.cachethq.io/api/v1",
   "api_token": "9yMHsdioQosnyVK4iCVR",
+  "interval": 5,
   "monitors": [
     {
       "name": "nodegear frontend",

main.go

@@ -9,7 +9,7 @@ func main() {
 	config := cachet.Config
 	log := cachet.Logger
 
-	log.Printf("System: %s, API: %s\n", config.SystemName, config.APIUrl)
+	log.Printf("System: %s, Interval: %d second(s), API: %s\n", config.SystemName, config.Interval, config.APIUrl)
 	log.Printf("Starting %d monitors:\n", len(config.Monitors))
 	for _, mon := range config.Monitors {
 		log.Printf(" %s: GET %s & Expect HTTP %d\n", mon.Name, mon.URL, mon.ExpectedStatusCode)
@@ -20,7 +20,7 @@ func main() {
 
 	log.Println()
 
-	ticker := time.NewTicker(time.Second)
+	ticker := time.NewTicker(time.Duration(config.Interval)*time.Second)
 	for range ticker.C {
 		for _, mon := range config.Monitors {
 			go mon.Run()

readme.md

@@ -9,7 +9,7 @@ Features
 --------
 
 - [x] Creates & Resolves Incidents
-- [x] Posts monitor lag every second
+- [x] Posts monitor lag every second * config.Interval
 - [x] Updates Component to Partial Outage
 - [x] Updates Component to Major Outage if in Partial Outage
 - [x] Can be run on multiple servers and geo regions
@@ -34,6 +34,7 @@ Configuration
 {
   "api_url": "https://demo.cachethq.io/api/v1",
   "api_token": "9yMHsdioQosnyVK4iCVR",
+  "interval": 60,
   "monitors": [
     {
       "name": "nodegear frontend",
@@ -41,7 +42,6 @@ Configuration
       "metric_id": 0,
       "component_id": 0,
       "threshold": 80,
-      "component_id": null,
       "expected_status_code": 200,
       "strict_tls": true
     }
@@ -66,8 +66,9 @@ How to run
 Example:
 
 1. Set up [Go](https://golang.org)
-2. `go install github.com/castawaylabs/cachet-monitor`
-3. `cachet-monitor -c https://raw.githubusercontent.com/CastawayLabs/cachet-monitor/master/example.config.json`
+2. `go get -d github.com/castawaylabs/cachet-monitor`
+3. `go install github.com/castawaylabs/cachet-monitor`
+4. `cachet-monitor -c https://raw.githubusercontent.com/CastawayLabs/cachet-monitor/master/example.config.json`
 
 Production: