Slack Notifications for Google Cloud Build

This is not an officially supported Google product.

This Google Cloud Function sends a notification to a Slack channel whenever a Google Cloud Build completes.

Installation

Create a Slack Webhook

Follow Slack's "Getting Started with Incoming Webhooks" instructions to create a Slack app and incoming webhook URL. This URL will be required in the next installation step.

Deploy Google Cloud Function

If you don't already have a Google Cloud project, create one now. Ensure that you have the Google Cloud SDK installed as well.

Run the following command to deploy this Google Cloud Function, after changing $PROJECT to your Google Cloud project ID and $SLACK_WEBHOOK_URL to the webhook URL you created in the previous installation step. You may also customise $FUNC_NAME and $STAGE_BUCKET.

# Required parameters
$ PROJECT="YOUR-GOOGLE-CLOUD-PROJECT-ID"
$ SLACK_WEBHOOK_URL="YOUR-SLACK-WEBHOOK-URL"
# Customisable parameters
$ FUNC_NAME="cloudbuild2slack"
$ STAGE_BUCKET="${PROJECT}-cloudbuild2slack"

$ gcloud --project="${PROJECT}" functions deploy "${FUNC_NAME}" \
    --stage-bucket="${STAGE_BUCKET}" \
    --trigger-topic="cloud-builds" \
    --runtime="nodejs10" \
    --set-env-vars="SLACK_WEBHOOK_URL=${SLACK_WEBHOOK_URL}"