Cluster Service Update Helper

This script handles everything needed to trigger a forced update of a service, (which also causes nodes to pull new images, e.g. newer 'latest' images) and can be configured with environment variables:

• CI_DEPLOY_URL: The URL of the Service-Update-Helper-Service
• CI_DEPLOY_TOKEN: authorization token
• CI_DEPLOY_SERVICE: name of the service to update

Exit Codes:

• 0: Update triggered with success.
• 1: Missing environment variables
• 2: Service-Update-Helper-Service is not reachable (maybe URL is invalid?)
• 3: Invalid authorization token
• 4: No permission to update the given service
• 5: Service not found
• 6: Update failed