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Kompos - k8s cloud automation

Project description


Build Status Docker pull License PyPI pyversions


Kompos is a configuration driven tool for provisioning and managing Kubernetes infrastructure across AWS and Azure. It uses a hierarchical folder structure and yaml files to store and generate configurations, with pluggable compositions that encapsulates the infrastructure code and state. Terraform and helmfile are supported as provisioners.

Below is a graphical representation of the data flow.



NOTE: Only Python 3 is supported.


pip install kompos

Locally for development

Using virtualenv

pip install virtualenv
virtualenv .env
source .env/bin/activate
(env) cd kompos/
(env) pip install --editable .

Hierarchical configuration

Kompos leverages himl to provide a hiera-like configuration structure.

Checkout the examples for more information.

Nix integration

With kompos you can leverage nix to pin your infrastructure code (i.e terraform & helmfile releases) on a specific version. This enables you to finely control your deployments and use different infrastructure versions per environment, cluster etc.


Install nix and nix-prefetch-git.

$ curl | sh

# It's used to automatically derive the commit sha & the hash of the repo,
# in case those are not provided by the configuration.
$ nix-env -f '<nixpkgs>' -iA nix-prefetch-git


Use the integration with the --nix flag with each command. Below are the necessary parts of komposconfig regarding nix & versioning:

  # This is the place to look for the terraform repo locally.
  # Used as the default if nix is not enabled. 
  local_path: '/home/user/terraform-stack'

  # This is needed in case the modules are not in the root of the repo.
  root_path: 'src/terraform'

    # This will be the name of the nix derivation for terraform.
    name: 'terraform-stack'

    # The repo we would like to version.
    url:  ""

# Likewise for helmfile.
  local_path: '/home/user/helmfile-releases'
  root_path: 'src/helmfiles'

    name: 'helmfile-releases'
    url:  ""

And in the hierarchical configuration you'll need the following keys:

    version: "0.1.0" # A git tag or a commit sha.

    # This is an optional field.
    # The sha256 hash of the repo provides data integrity and ensures that we
    # always get the same input. 
    # It can be omitted when you're using a tag that is periodically updated. 
    # (e.g in a dev/nightly environment). Since this is a mandatory field for nix, 
    # nix-prefetch-git will be used as a fallback to caclulate it.
    sha256: "ab9190b0ecc8060a54f1fac7de606e6b2c4757c227f2ce529668eb145d9a9516"

  # Likewise for helmfile.
    version: "0.1.0"
    sha256: "139cd5119d398d06f6535f42d775986a683a90e16ce129a5fb7f48870613a1a5"

Docker Image


Apache License 2.0

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