[Deploy][XXS] Ensure Container Names Adhere to GCP Restrictions

[amrutha97]

Description
Currently, our container names may not fully comply with Google Cloud Platform's (GCP) naming restrictions. To prevent deployment issues and ensure compatibility, we need to enforce that all container names meet the following GCP constraints:

• Must be lowercase
• Can only include alphanumeric characters and dashes (-)
• No leading or trailing dashes

Expected Behavior

• All container names generated during deployment should strictly follow the GCP naming rules.

Steps to Reproduce

1. Deploy a container with a name that violates GCP restrictions (e.g., contains uppercase letters, underscores, or invalid characters).
2. Observe any errors or warnings during deployment.

Tasks

• Validate container names before deployment.
• Add automated checks to enforce lowercase alphanumeric and dash-only naming.
• Make sure no leading or trailing dashes are allowed.

Resources

• GCP Naming Guidelines for Containers

Code Pointers

preswald/cli.py Link
preswald/deploy.py Link

[danlm]

preswald/preswald/deploy.py

Lines 25 to 27 in 0ae458a

	def get_container_name(script_path: str) -> str:
	"""Generate a consistent container name for a given script"""
	return f"preswald-app-{Path(script_path).stem}"

Using regular expressions:

import re
def get_container_name(script_path: str) -> str: 
    """Generate a consistent container name for a given script""" 
    container_name = f"preswald-app-{Path(script_path).stem}" 
    container_name = container_name.lower()
    container_name = re.sub(r"[^a-z0-9-]", "", container_name)
    container_name = container_name.strip('-')
    return container_name