Multiple Environments with Layering

You can use Kubes to easily create multiple environments with the same YAML configs. This is thanks to Kubes Layering. We’ll walk through an example to help understand how it works.

Creating Multiple Environments

To create multiple environments like dev and prod just change KUBES_ENV. Example:

KUBES_ENV=dev  kubes deploy
KUBES_ENV=prod kubes deploy

Different env files will be layered and merged to produce YAML files specific to each environment.

Project Structure

Here’s an example structure, so we can understand how layering works to create multiple environments.

├── base
│   ├── all.yaml
│   └── deployment.yaml
└── web
    ├── deployment
    │   ├── dev.yaml
    │   └── prod.yaml
    ├── deployment.yaml
    └── service.yaml

Concrete Example

Let’s look at a concrete web/deployment.yaml.

Here are the files that get layered when KUBES_ENV=dev:


And when KUBES_ENV=prod:


Layering allows us to have common settings that are processed before your main .kubes/resources/web/deployment.yaml YAML manifest. And then add environment specific YAML files that get merged.

Variables and Helpers

Additional, you can use variables and helpers to provide environment specific values.