Add slack

cli/Makefile

@@ -0,0 +1,3 @@
+build:
+	docker build --pull -t ${PREFIX}/$$(gcloud config get-value project 2> /dev/null)/status-monitor:$(TAG) .
+

cli/go.mod

@@ -0,0 +1,3 @@
+module main
+
+go 1.13

cli/main.go

@@ -12,7 +12,7 @@ import (
 	"sync"
 
 	"github.com/Sirupsen/logrus"
-	cachet "github.com/castawaylabs/cachet-monitor"
+	cachet "github.com/macchiang/cachet-monitor"
 	docopt "github.com/docopt/docopt-go"
 	"github.com/mitchellh/mapstructure"
 	"gopkg.in/yaml.v2"

config.go

@@ -12,6 +12,7 @@ import (
 type CachetMonitor struct {
 	SystemName  string                   `json:"system_name" yaml:"system_name"`
 	DateFormat  string                   `json:"date_format" yaml:"date_format"`
+	SlackWebhook string                  `json:"slack_webhook" yaml:"slack_webhook"`
 	API         CachetAPI                `json:"api"`
 	RawMonitors []map[string]interface{} `json:"monitors" yaml:"monitors"`
 

example.config.json

@@ -5,6 +5,7 @@
     "insecure": false
   },
   "date_format": "02/01/2006 15:04:05 MST",
+  "slack_webhook": "https://hooks.slack.com/services/T00000000/B00000000/XXXXXXXXXXXXXXXXXXXXXXXX",
   "monitors": [
     {
       "name": "google",

example.config.yml

@@ -6,6 +6,7 @@ api:
   insecure: false
 # https://golang.org/src/time/format.go#L57
 date_format: 02/01/2006 15:04:05 MST
+slack_webhook: https://hooks.slack.com/services/T00000000/B00000000/XXXXXXXXXXXXXXXXXXXXXXXX
 monitors:
   # http monitor example
   - name: google

incident.go

@@ -67,7 +67,10 @@ func (incident *Incident) Send(cfg *CachetMonitor) error {
 	if resp.StatusCode != 200 {
 		return fmt.Errorf("Could not create/update incident!")
 	}
-
+	// send slack message
+	if cfg.SlackWebhook !="" {
+		sendSlack(cfg)
+	}
 	return nil
 }
 
@@ -110,3 +113,30 @@ func (incident *Incident) SetWatching() {
 func (incident *Incident) SetFixed() {
 	incident.Status = 4
 }
+
+// Send slack message
+func (incident *Incident) sendSlack(cfg *CachetMonitor) {
+	color:="#bf1932" //red
+	if incident.ComponentStatus == 1 {
+
+		color="#36a64f" //green
+	}
+	slack := Slack{
+		WebhookUrl: cfg.SlackWebhook
+		Attachments: []Attachments{
+			Attachments{
+				Fallback:   incident.Name,
+				Color:      color,
+				Title:      incident.Name,
+				TitleLink:  "https://status.easyship.com",
+				Text:       incident.Message,
+				Footer:     "Cachet Monitor",
+				FooterIcon: "https://i.imgur.com/spck1w6.png",
+				Ts:         time.Now().Unix(),
+			},
+		}}
+	err := slack.SendSlackNotification()
+	if err != nil {
+		fmt.Errorf(err)
+	}
+}

slack.go

@@ -0,0 +1,80 @@
+package cachet
+
+import (
+	"bytes"
+	"encoding/json"
+	"errors"
+	"log"
+	"net/http"
+	"time"
+)
+
+type Slack struct {
+	WebhookUrl  string
+	Attachments []Attachments `json:"attachments"`
+}
+type Fields struct {
+	Title string `json:"title"`
+	Value string `json:"value"`
+	Short bool   `json:"short"`
+}
+type Attachments struct {
+	Fallback   string   `json:"fallback"`
+	Color      string   `json:"color"`
+	Pretext    string   `json:"pretext"`
+	Title      string   `json:"title"`
+	TitleLink  string   `json:"title_link"`
+	Text       string   `json:"text"`
+	Fields     []Fields `json:"fields"`
+	ThumbURL   string   `json:"thumb_url"`
+	Footer     string   `json:"footer"`
+	FooterIcon string   `json:"footer_icon"`
+	Ts         int64    `json:"ts"`
+}
+
+func test() {
+	slack := Slack{
+		Attachments: []Attachments{
+			Attachments{
+				Fallback:   "Required plain-text summary of the attachment.",
+				Color:      "#36a64f",
+				Title:      "Slack API Documentation",
+				TitleLink:  "https://status.easyship.com",
+				Text:       "Optional text that appears within the attachment",
+				Footer:     "Cachet Monitor",
+				FooterIcon: "https://i.imgur.com/spck1w6.png",
+				Ts:         time.Now().Unix(),
+			},
+		}}
+	slack.WebhookUrl = "https://hooks.slack.com/services/0000000/00000000/xxxxxxxxxxxxxxxxxxx"
+	err := slack.SendSlackNotification()
+	if err != nil {
+		log.Fatal(err)
+	}
+}
+
+// SendSlackNotification will post to an 'Incoming Webook' url setup in Slack Apps. It accepts
+// some text and the slack channel is saved within Slack.
+func (slack *Slack) SendSlackNotification() error {
+
+	slackBody, _ := json.Marshal(slack)
+	req, err := http.NewRequest(http.MethodPost, slack.WebhookUrl, bytes.NewBuffer(slackBody))
+	if err != nil {
+		return err
+	}
+
+	req.Header.Add("Content-Type", "application/json")
+
+	client := &http.Client{Timeout: 10 * time.Second}
+	resp, err := client.Do(req)
+	if err != nil {
+		return err
+	}
+
+	buf := new(bytes.Buffer)
+	buf.ReadFrom(resp.Body)
+	if buf.String() != "ok" {
+		return errors.New("Non-ok response returned from Slack")
+	}
+	return nil
+}