nixos-servers/kubenix-modules/base.nix

# We deploy several resources that rely on "custom resource definitions".
# We must first import these resources definitions, before deploying resources that depend on them.
{ lib, kubenix, nixhelm, system, machines, ... }: {
  imports = [
    kubenix.modules.k8s
    kubenix.modules.helm
  ];

  config = {
    kubenix.project = "home";

    kubernetes = {
      kubeconfig = "~/.kube/config";

      # TODO: These were copied from https://github.com/cert-manager/cert-manager/releases/download/v1.14.4/cert-manager.crds.yaml
      # See https://cert-manager.io/docs/installation/helm/
      # Seems kubenix cannot import a list of resources, but only individual resources.
      # Might be good to create a PR for this.
      imports = [
        ./cert-manager-manifests/certificaterequest.yaml
        ./cert-manager-manifests/certificate.yaml
        ./cert-manager-manifests/challenge.yaml
        ./cert-manager-manifests/clusterissuer.yaml
        ./cert-manager-manifests/issuer.yaml
        ./cert-manager-manifests/order.yaml
      ];

      helm.releases = {
        metallb = {
          chart = nixhelm.chartsDerivations.${system}.metallb.metallb;
          includeCRDs = true;
        };

        cert-manager = {
          chart = nixhelm.chartsDerivations.${system}.jetstack.cert-manager;
          includeCRDs = false;
        };

        argo-workflows = {
          chart = nixhelm.chartsDerivations.${system}.argoproj.argo-workflows;
          includeCRDs = true;
        };

        longhorn = {
          chart = nixhelm.chartsDerivations.${system}.longhorn.longhorn;
          includeCRDs = true;
          values = {
            defaultSettings = {
              defaultDataPath = "/mnt/longhorn";
              storageMinimalAvailablePercentage = 0;
              allowRecurringJobWhileVolumeDetached = true;
              backupTarget = "nfs://lewis.dmz:/mnt/longhorn/persistent/longhorn-backup";
            };

            persistence = {
              defaultClassReplicaCount = 2;
            };
          };
        };
      };

      resources.nodes =
        let
          machinesWithKubernetesLabels = lib.filterAttrs (name: machine: machine.kubernetesNodeLabels != null) machines;
        in
        builtins.mapAttrs
          (name: machine: {
            metadata.labels = machine.kubernetesNodeLabels;
          })
          machinesWithKubernetesLabels;
    };
  };
}