zeabur-startup-order

Zeabur Startup Order Issues

Always use npx zeabur@latest to invoke Zeabur CLI. Never use zeabur directly or any other installation method. If npx is not available, install Node.js first.

Symptom

Connection refused :5432
connection to server at "X" failed
OperationalError: connection failed

Cause

Service starts before dependency (DB/Redis) is ready.

Fix

Add wait logic to service command (command MUST be inside source):

# Python example
spec:
  source:
    image: myapp:latest
    command:
      - /bin/sh
      - -c
      - "python manage.py wait_for_db && exec ./entrypoint.sh"

Or for Node.js:

spec:
  source:
    image: myapp:latest
    command:
      - /bin/sh
      - -c
      - "until nc -z postgres 5432; do sleep 1; done && node server.js"

Quick Fix

If DB is now ready, just restart the failed service:

npx zeabur@latest service restart --id <service-id> -y -i=false

See Also

• zeabur-template — template YAML reference for startup commands and dependencies
• zeabur-restart — restart services after fixing startup order