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refactor(flake): Improve flake outputs for k8s scripts and manifests

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docs(readme): Update k8s deployment instructions
This commit is contained in:
Pim Kunis 2024-07-17 18:20:49 +02:00
parent 7a40738989
commit 835aea667c
3 changed files with 48 additions and 60 deletions

0
flake-parts/kubenix-deploy.sh → flake-parts/applyset-deploy.sh
View file

70
flake-parts/kubenix.nix
View file

@ -1,59 +1,64 @@
{ self, pkgs, machines, dns, myLib, flake-utils, kubenix, nixhelm, blog-pim, ... }: flake-utils.lib.eachDefaultSystem
(system:
let
deployScript = (pkgs.writeScriptBin "kubenix" (builtins.readFile ./kubenix-deploy.sh)).overrideAttrs (old: {
deployScript = (pkgs.writeScriptBin "applyset-deploy.sh" (builtins.readFile ./applyset-deploy.sh)).overrideAttrs (old: {
buildCommand = "${old.buildCommand}\npatchShebangs $out";
});
mkDeployScript = kubernetes: applysetName: namespace:
mkKubernetes = name: module: namespace: (kubenix.evalModules.${system} {
specialArgs = { inherit namespace myLib blog-pim dns nixhelm system machines; };
module = { kubenix, ... }:
{
imports = [
kubenix.modules.k8s
kubenix.modules.helm
"${self}/kubenix-modules/custom"
"${self}/kubenix-modules/custom-types.nix"
module
];
config = {
kubenix.project = name;
kubernetes.namespace = namespace;
};
};
}).config.kubernetes;
mkManifest = name: { module, namespace }:
{
manifest = (mkKubernetes name module namespace).result;
};
mkDeployApp = name: { module, namespace }:
let
kubernetes = mkKubernetes name module namespace;
kubeconfig = kubernetes.kubeconfig or "";
result = kubernetes.result or "";
wrappedDeployScript = pkgs.symlinkJoin
{
name = "kubenix";
name = "applyset-deploy.sh";
paths = [ deployScript pkgs.vals pkgs.kubectl ];
buildInputs = [ pkgs.makeWrapper ];
passthru.manifest = result;
meta.mainProgram = "applyset-deploy.sh";
postBuild = ''
wrapProgram $out/bin/kubenix \
wrapProgram $out/bin/applyset-deploy.sh \
--suffix PATH : "$out/bin" \
--run 'export KUBECONFIG=''${KUBECONFIG:-${toString kubeconfig}}' \
--set MANIFEST '${result}' \
--set APPLYSET 'applyset-${applysetName}' \
--set APPLYSET 'applyset-${name}' \
--set NAMESPACE '${namespace}'
'';
};
in
wrappedDeployScript;
mkDeployScriptAndManifest = name: { module, namespace }:
let
kubernetes = (kubenix.evalModules.${system} {
specialArgs = { inherit namespace myLib blog-pim dns nixhelm system machines; };
module = { kubenix, ... }:
{
imports = [
kubenix.modules.k8s
kubenix.modules.helm
"${self}/kubenix-modules/custom"
"${self}/kubenix-modules/custom-types.nix"
module
];
config = {
kubenix.project = name;
kubernetes.namespace = namespace;
};
};
}).config.kubernetes;
in
{
manifest = kubernetes.result;
deploy = mkDeployScript kubernetes name namespace;
deploy = {
type = "app";
program = "${pkgs.lib.getExe wrappedDeployScript}";
};
};
deployers = {
@ -174,5 +179,6 @@
};
in
{
kubenix = builtins.mapAttrs mkDeployScriptAndManifest deployers;
apps = builtins.mapAttrs mkDeployApp deployers;
packages = builtins.mapAttrs mkManifest deployers;
})