How to access your Node.js application
Private internal access
Projects in Zerops represent a group of one or more services. Services can be of different types (runtime services, databases, message brokers, object storage, etc.). All services of the same project share a dedicated private network. To connect to a service within the same project, just use the service hostname and its internal port.
To connect to your application with app hostname running on internal port 3000, simply use http://app:3000
Do not use https:// when communicating with Node.js from other runtime services in the same project. The internal communication is done over a private network and is isolated from other projects.
Use Node.js environment variables
Zerops creates default environment variables for each Node.js service to help you with connection within the same project. To avoid the need to copy the access parameters manually, use generated environment variables of the Node.js service.
Prefix the environment variable key
All services of the same project can reference environment variables from other services. To use an environment variable from one service in another service in the same project, you must prefix the environment variable key with the service hostname and underscore.
Example:
To access the API_TOKEN env variable of the app service, use app_API_TOKEN as the env variable key.
Read more about env variables.
Private access via VPN
Start VPN connection
You can securely connect to your Node.js application from your local workspace via Zerops VPN. Zerops VPN client is included into zCLI, the Zerops command-line tool. To start a VPN connection to the selected Zerops project, follow these steps:
Access Node.js application through VPN
Once the VPN session is established, you have the secured connection to the project's private network in Zerops. You can access all project services locally by using their hostname. The only difference is that no environment variables are available when connected through VPN. To connect to your Node.js application in Zerops set the hostname and internal port e.g. http://app:3000
Do not use https:// when communicating with Node.js over the VPN. The security is assured by the VPN. The internal communication is done over a private network and is isolated from other projects.
Connect via SSH
Use the ssh command to connect to your service via SSH.
Stop VPN connection
Stop the Zerops VPN in zCLI.
Public access through zerops.io subdomain
By default, your Node.js service is not publicly accessible. To test your application, enable the public access through zerops.io subdomain.
Public access through your domain
By default, your Node.js service is not publicly accessible. When your application is ready for production or if you want to test it on the production domain, configure the public access through your domain.
Public access from another Zerops project
All services of the same project share a dedicated private network. To connect to a service within the same project, just use the service hostname and its internal port. Different projects are not connected inside Zerops. To connect to a runtime service from another Zerops project, you need to use public access either through zerops.io subdomain or through your domain.