Render.com - Parser Full Documentation

The parser for Render.com translates the docker-compose.yml file into Render BluePrint. The parser logic can be found in GitHub inside docker-to-iac repo.

Parser language abbreviation for API

  • languageAbbreviation: RND.

Prerequisite to deploy Render BluePrint

There are no special requirements for using the Render.com blueprint. However, you need a valid render.com account with sufficient credits.

Architecture

The BluePrint will create a render "web" service.

Type = "Web Service".

Render dashboard will list all your web services. At the top, you can switch between Dashboard and BluePrints.

Render BluePrints

After the BluePrint has been created through one-click deployment, the BluePrint will be visible in the BluePrint menu.

In contrast to other cloud providers, Render.com's usability is very trivial. There is no VPC / VNet or anything else. After successful deployment, you can open your service via a URL.

Default output format

  • The default output format for this parser: YAML.

Supported Docker Compose Variables

The current version supports the following Docker Compose variables:

For services:

  • image
  • environment
  • ports
  • command
Note
📝
The supported variables that are not on this list are ignored. This means that they are not translated by the parser in Infrastructure as Code from docker-compose.yml or docker run command.

Volume Support

Render.com offers two types of storage options:

Default: Ephemeral Filesystem

By default, Render services use an ephemeral filesystem where:

  • Changes to the filesystem are lost after deployments or restarts
  • Each service instance has its own separate filesystem
  • No data persists between deployments

Persistent Disk Option

The parser supports adding persistent disk storage through the volumes directive:

  • Persistent disks are automatically configured with 10GB size
  • Only one disk per service is supported
  • Files are preserved across deployments and restarts
  • Only filesystem changes under the disk's mount path are preserved

Important limitations for persistent disks:

  • A disk can only be accessed by a single service instance
  • Services with persistent disks cannot scale to multiple instances

Read more here: render.com/docs/disks

Service Types

The parser automatically determines the appropriate service type for each container in your Docker configuration:

Web Services (Default)

By default, services are created as type: web, which is suitable for:

  • HTTP-based applications
  • Frontend applications
  • API servers
  • Any service that needs to be publicly accessible

Private Services

For databases and other TCP-based services, the parser automatically sets type: pserv. These services:

  • Are not publicly accessible
  • Can communicate with other services over TCP
  • Are ideal for databases and backend services

Read more here: render.com/docs/private-services.

The service type is determined based on the Docker image being used. For example:

yaml
services:
  web:
    image: nginx:latest
    # Automatically set to type: web
    
  db:
    image: mariadb:11.2
    # Automatically set to type: pserv

Adding New Service Types

If you're using a service that should be private but isn't automatically detected, please visit our Render: Contributing to Render Service Types docs page.

Multi Services Support

Multi services support for Render.com: yes

Since multi services feature is supported.

Please read more about multi service support here.