Cloudbuild Notifier is a simple go service that listens to cloud-build Google Cloud Pub/Sub topic, which exists by default.
cloudbuild-notifier is publicly accessible as a Docker image:
gcr.io/cloudkite-public/cloudbuild-notifier:latest
Cloudbuild Notifier filters out messages from Cloud Pub/Sub messages and send notifications to Slack if there failing builds.
A subscription to that topic is created automatically to receive build status messages and if builds have any fails (FAILURE, INTERNAL_ERROR, TIMEOUT, CANCELLED), a notification is sent to Slack and/or Email. One can apply filters to determine when notifications should be sent based on: Build Status, Source Branch or Source Repo.
Follow instructions here https://cloud.google.com/cloud-build/docs/configure-third-party-notifications#slack_notifications
| NAME | DEFAULT | DESCRIPTION |
|---|---|---|
| GCLOUD_PROJECT_ID | no default | GCP project id |
| SLACK_WEBHOOK_URL | no default | Slack Webhook URL. Read more https://api.slack.com/incoming-webhooks |
| GCLOUD_PUBSUB_SUBSCRIPTION_NAME | cloudbuild-notifier-subscription | Google Cloud Pub/Sub topic subscription. Read more: https://cloud.google.com/pubsub/docs/subscriber |
| NOTIFICATION_FILTERS | "" | A string of regex filters that should trigger notifications to be sent to Slack (see section below) By default, notifications will be sent for all build messages |
The NOTIFICATION_FILTERS environment variable should be passed as a comma-separated string of regexes in the format:
<source regex>:<branch regex>:<status regex>,<source regex>:<branch regex>:<status regex>:<tag regex>
e.g.
org-name/repo-name-(1|2):(main|production|dev-*):(SUCCESS|WORKING),org-name/repo-name-(3|4):dev:(FAILURE|QUEUED):monitoring-*