See the article: Building an AI Slack Bot using Vertex Generative AI
Create a terraform.tfvars file containing:
project_id = "<your-project-id>"
region = "europe-west1"
slack_token = "xoxb-...." # Slack OAuth token for workspace
slack_signing_key = "8e................02f" # Slack signing key
slack_app_id = "A........L" # App ID