What is the recommended approach to synchronizing containers in CoreOS? For example, how might CoreOS ensure the following container execution order at startup?
1. Start PostgreSQL Server 2. Create schema (using separate one-shot Liquibase container) 3. Launch application The application cannot run without its database schema and Liquibase cannot create the database schema without PostgreSQL Server being ready to receive SQL statements. Which mechanisms in CoreOS can we use to guarantee this ordering? Thank you, Derek
