97 lines
2.9 KiB
Nix
97 lines
2.9 KiB
Nix
{
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description = "Flake that configures a static site hosted in a k3s pod";
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inputs = {
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nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";
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};
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outputs =
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{ self, nixpkgs, ... }:
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{
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nixosModules.nimh-static =
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{
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config,
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lib,
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pkgs,
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...
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}:
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let
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k3sDir = ./k3s;
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siteDir = ./site;
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opts = config.services.nimh-static;
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in
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{
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options.services.nimh-static = {
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enable = lib.mkEnableOption "serve nimh via k3s pod.";
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default-nginx = {
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enable = lib.mkEnableOption "Enable nginx reverse proxy.";
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hostname = lib.mkOption {
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type = lib.types.str;
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default = "localhost";
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description = "Hostname for reverse proxy";
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};
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};
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};
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config = lib.mkIf opts.enable {
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systemd.services.nimh-static = {
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description = "oneshot apply service to k3s";
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after = [ "k3s.service" ];
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wantedBy = [ "multi-user.target" ];
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serviceConfig = {
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Type = "oneshot";
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ExecStart = pkgs.writeShellScript "start-nimh-static" ''
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echo "Creating temp dir"
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kubernetes_config=$(mktemp -d)
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echo "Generating templated files"
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gomplate=${pkgs.gomplate}/bin/gomplate
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$gomplate --input-dir=${k3sDir} --output-dir=$kubernetes_config -d site=file://${siteDir}/index.html?type=text/plain
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echo "Applying k3s config"
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kubectl=${pkgs.kubectl}/bin/kubectl
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$kubectl apply -k $kubernetes_config
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'';
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User = "root";
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Group = "root";
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};
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};
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services.nginx = lib.mkIf opts.default-nginx.enable {
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enable = true;
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virtualHosts.${opts.default-nginx.hostname} = {
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forceSSL = true;
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# Parse TLD from hostname to use wildcard cert (just takes last two elements separated by a period)
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useACMEHost =
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let
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b = builtins;
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s = lib.strings;
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fl = s.splitString "." "${opts.default-nginx.hostname}";
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in
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b.concatStringsSep "." [
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(b.elemAt fl (b.length fl - 2))
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(b.elemAt fl (b.length fl - 1))
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];
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locations."/" = {
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# Default k3s port?
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proxyPass = "http://localhost:30080";
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};
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};
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};
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networking.firewall.allowedTCPPorts = lib.mkIf opts.default-nginx.enable [
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80
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443
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];
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};
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};
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};
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}
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