feat: support change timezone (#226)

Signed-off-by: Ryota Sakamoto <sakamo.ryota+github@gmail.com>

docs/templates.md

@@ -49,6 +49,33 @@ The `message` field of the template definition allows creating a basic notificat
 fields to create complex notifications. For example using service-specific you can add blocks and attachments for Slack, subject for Email or URL path, and body for Webhook.
 See corresponding service [documentation](./services/overview.md) for more information.
 
+## Change the timezone
+
+You can change the timezone to show it as follows.
+
+1. Call time functions.
+
+```
+{{ (call .time.Parse .app.status.operationState.startedAt).Local.Format "2006-01-02T15:04:05Z07:00" }}
+```
+
+2. Set environment to container.
+
+```yaml
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+ name: argocd-notifications-controller
+spec:
+(snip)
+ spec:
+ containers:
+ - name: argocd-notifications-controller
+ env:
+ - name: TZ
+ value: Asia/Tokyo
+```
+
 ## Functions
 
 Templates have access to the set of built-in functions:

pkg/services/services.go

@@ -6,6 +6,7 @@ import (
  "fmt"
  "strings"
  texttemplate "text/template"
+ _ "time/tzdata"
 
  "github.com/ghodss/yaml"
 )

pkg/services/slack_test.go

@@ -1,10 +1,14 @@
 package services
 
 import (
+ "os"
  "testing"
  "text/template"
+ "time"
 
  "github.com/stretchr/testify/assert"
+
+ et "github.com/argoproj-labs/argocd-notifications/expr/time"
 )
 
 func TestValidIconEmoij(t *testing.T) {
@@ -47,3 +51,43 @@ func TestGetTemplater_Slack(t *testing.T) {
  assert.Equal(t, "hello", notification.Slack.Attachments)
  assert.Equal(t, "world", notification.Slack.Blocks)
 }
+
+func TestChangeTimezone_Slack(t *testing.T) {
+ tz := os.Getenv("TZ")
+ if err := os.Setenv("TZ", "Asia/Tokyo"); err != nil {
+ t.Fatal(err)
+ }
+ t.Cleanup(func() {
+ if err := os.Setenv("TZ", tz); err != nil {
+ t.Fatal(err)
+ }
+ })
+
+ n := Notification{
+ Slack: &SlackNotification{
+ Attachments: `{{ (call .time.Parse .date).Local.Format "2006-01-02T15:04:05Z07:00" }}`,
+ },
+ }
+ templater, err := n.GetTemplater("", template.FuncMap{})
+
+ if !assert.NoError(t, err) {
+ return
+ }
+
+ currentTime, err := time.Parse(time.RFC3339, "2021-03-26T23:38:01Z")
+ if !assert.NoError(t, err) {
+ return
+ }
+
+ var notification Notification
+ err = templater(&notification, map[string]interface{}{
+ "date": currentTime.Format(time.RFC3339),
+ "time": et.NewExprs(),
+ })
+
+ if !assert.NoError(t, err) {
+ return
+ }
+
+ assert.Equal(t, "2021-03-27T08:38:01+09:00", notification.Slack.Attachments)
+}