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Add Slack notifications of node shutdown events
* Accept a Slack WebhookURL to notify a Slack channel of node lifecycle events * Add -webhook flag to set the Slack WebhookURL
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| // Copyright (C) 2022 Poseidon Labs | ||
| // Copyright (C) 2022 Dalton Hubble | ||
| // | ||
| // This Source Code Form is subject to the terms of the Mozilla Public | ||
| // License, v. 2.0. If a copy of the MPL was not distributed with this | ||
| // file, You can obtain one at https://mozilla.org/MPL/2.0/. | ||
| package scuttle | ||
|
|
||
| import ( | ||
| "fmt" | ||
|
|
||
| "github.com/slack-go/slack" | ||
| ) | ||
|
|
||
| type Notification string | ||
|
|
||
| const ( | ||
| Uncordon Notification = "uncordon" | ||
| TermNotice Notification = "term-notice" | ||
| Shutdown Notification = "shutdown" | ||
| Drain Notification = "drain" | ||
| Delete Notification = "delete" | ||
| ) | ||
|
|
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| func (w *Scuttle) notifySlack(action Notification, node string) { | ||
| msg := &slack.WebhookMessage{} | ||
|
|
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| switch action { | ||
| case Uncordon: | ||
| msg.Text = fmt.Sprintf(":white_check_mark: Uncordon node `%s`", node) | ||
| case TermNotice: | ||
| msg.Text = fmt.Sprintf(":stopwatch: Detected spot termination notice for `%s`", node) | ||
| case Shutdown: | ||
| msg.Text = fmt.Sprintf(":octagonal_sign: Detected shutdown of `%s`", node) | ||
| case Drain: | ||
| msg.Text = fmt.Sprintf(":droplet: Draining node `%s`", node) | ||
| case Delete: | ||
| msg.Text = fmt.Sprintf(":headstone: Deleting node `%s`", node) | ||
| } | ||
|
|
||
| err := slack.PostWebhook(w.config.Webhook, msg) | ||
| if err != nil { | ||
| w.log.Errorf("error notifying Slack webhook url: %v", err) | ||
| } | ||
| } |