Slack (v0.4.0+)

Notification templates can be customized to leverage slack message blocks and attachments feature.

The message blocks and attachments can be specified in blocks and attachments string fields under slack field:

templates:
  - name: app-sync-status
    title: Application {{.app.metadata.name}} sync status is {{.app.status.sync.status}}
    body: |
      Application {{.app.metadata.name}} sync is {{.app.status.sync.status}}.
      Application details: {{.context.argocdUrl}}/applications/{{.app.metadata.name}}.
    slack:
      attachments: |
        [{
          "title": "{{.app.metadata.name}}",
          "title_link": "{{.context.argocdUrl}}/applications/{{.app.metadata.name}}",
          "color": "#18be52",
          "fields": [{
            "title": "Sync Status",
            "value": "{{.app.status.sync.status}}",
            "short": true
          }, {
            "title": "Repository",
            "value": "{{.app.spec.source.repoURL}}",
            "short": true
          }]
        }]