Kompos - k8s cloud automation
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
pip install virtualenv virtualenv .env source .env/bin/activate (env) cd kompos/ (env) pip install --editable .
Checkout the examples for more information.
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.
$ curl -L https://nixos.org/nix/install | bash $ nix-env -f '<nixpkgs>' -iA nix-prefetch-git
The integration can be globally enabled or diabled with the flag
nix: [true|false] and a disable overwrite with
--no-nix argument. Below are the
necessary parts of komposconfig regarding nix & versioning:
terraform: # 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' repo: # This will be the name of the nix derivation for terraform. name: 'terraform-stack' # The repo we would like to version. url: "firstname.lastname@example.org:my-org/terraform-stack.git" # Likewise for helmfile. helmfile: local_path: '/home/user/helmfile-releases' root_path: 'src/helmfiles' repo: name: 'helmfile-releases' url: "email@example.com:my-org/helmfile-releases.git" nix: true
And in the hierarchical configuration you'll need the following keys:
infrastructure: terraform: 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. helmfile: version: "0.1.0" sha256: "139cd5119d398d06f6535f42d775986a683a90e16ce129a5fb7f48870613a1a5"
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