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)