Docker image deployment with Next.js: Single image inside Next.js or multiple images for web / workflow runner respectively?

[imWildCat]

Like for inngest we have to define another service like inngest runner. Not sure whether it is needed for workflow sdk?

[pranaygp]

There's no external runner with workflow dev kit. It's mostly a client side library that uses a world for the orchestration. When using vercel, it will automatically use the vercel world and it just works. But, if you're building and deploying Next.js outside of Vercel, then I'd recommend either using the Jazz world (https://github.com/garden-co/workflow-world-jazz) or the postgres world (https://github.com/vercel/workflow/tree/main/packages/world-postgres) for the persistence

(side note that the documentation for postgres world could use some help too but we have some PRs coming up for that we're just reviewing and working through (for ex #59))

[imWildCat]

thanks! it works perfectly.

my docker-entrypoint.sh

#!/bin/bash
set -e


# Wait for database to be ready
if [ -n "$DATABASE_URL" ]; then
  echo "Waiting for PostgreSQL to be ready..."

  # Extract database connection details from DATABASE_URL
  DB_HOST=$(echo $DATABASE_URL | sed -n 's/.*:\/\/.*@\(.*\):.*/\1/p')
  DB_PORT=$(echo $DATABASE_URL | sed -n 's/.*:\([0-9]*\)\/.*/\1/p')

  if [ -n "$DB_HOST" ] && [ -n "$DB_PORT" ]; then
    # Wait for database connection using pg_isready
    timeout=60
    while ! pg_isready -h $DB_HOST -p $DB_PORT -U keyvisual_studio_user -d keyvisual_studio_production 2>/dev/null; do
      timeout=$((timeout - 1))
      if [ $timeout -le 0 ]; then
        echo "Database connection timeout"
        exit 1
      fi
      sleep 1
    done
    echo "PostgreSQL is ready!"
  fi
fi

# Run database migrations if they exist
if [ -f "/app/drizzle/run_migrate.cjs" ]; then
  echo "Running database migrations..."
  node drizzle/run_migrate.cjs || (echo "Database migrations failed" && exit 1)
  echo "Migrations completed successfully!"

  echo "Running workflow migrations..."
  pnpm exec workflow-postgres-setup || echo "Workflow migrations failed"
fi

# Start the Next.js application
echo "Starting Next.js application..."
exec node server.js