name: entrypoint description: Generates entrypoint.sh script for Docker container runtime environment variable injection. Replaces placeholder values in built assets with actual environment variables at container startup.

Entrypoint Script Skill

Purpose

Generate entrypoint.sh script for Docker container runtime environment variable injection.

Output

Create the file: entrypoint.sh in the root directory

Example File

See: examples.md in this directory for complete examples and detailed explanations.

Conditional Logic

JS Environment Substitution

• If application_type: "standalone" → Include the for loop that processes app*.js files with envsubst
• If application_type: "micro-frontend" → Omit the for loop (launcher handles environment injection)

Note: The {{JS_ENV_SUBSTITUTION}} placeholder in the template should be replaced with the actual for loop code or removed based on application_type.

Notes

• Enables runtime environment variable injection into built assets
• Uses envsubst to replace placeholders with actual environment variable values
• Always processes index.html for VITE_CONTEXT_PATH
• Conditionally processes JavaScript files for standalone apps only
• Sets errexit and nounset for safer script execution
• Starts nginx in foreground mode for Docker container
• Requires gettext-base package for envsubst command
• Must be executable (chmod +x entrypoint.sh)