From 6139430d2525211dfd7d49cb2be59064ee221609 Mon Sep 17 00:00:00 2001
From: Franck Cuny <franck@fcuny.net>
Date: Wed, 6 Apr 2022 12:44:44 -0700
Subject: refactor traefik

---
 modules/services/default.nix         |   1 +
 modules/services/traefik/default.nix | 103 +++++++++++++++++++++++++++++++++++
 2 files changed, 104 insertions(+)
 create mode 100644 modules/services/traefik/default.nix

(limited to 'modules')

diff --git a/modules/services/default.nix b/modules/services/default.nix
index 6dfc4fb..95c5f21 100644
--- a/modules/services/default.nix
+++ b/modules/services/default.nix
@@ -13,6 +13,7 @@
     ./tailscale
     ./thermald
     ./tlp
+    ./traefik
     ./unifi
   ];
 }
diff --git a/modules/services/traefik/default.nix b/modules/services/traefik/default.nix
new file mode 100644
index 0000000..980faee
--- /dev/null
+++ b/modules/services/traefik/default.nix
@@ -0,0 +1,103 @@
+{ pkgs, inputs, config, lib, ... }:
+
+with lib;
+
+let
+  cfg = config.my.services.navidrome;
+  domainPublic = "fcuny.net";
+  domainPrivate = "fcuny.xyz";
+  mkServiceConfig = name: url: domain: certResolver: {
+    http.routers."${name}.${domain}" = {
+      rule = "Host(`${name}.${domain}`)";
+      service = "${name}.${domain}";
+      tls.certResolver = certResolver;
+    };
+    http.services."${name}.${domain}" = {
+      loadBalancer.servers = [{ url = url; }];
+    };
+  };
+in {
+  options.my.services.traefik = with lib; {
+    enable = mkEnableOption "traefik router";
+  };
+
+  config = lib.mkIf cfg.enable {
+    age.secrets.traefik_gcp_sa = {
+      file = ../../../secrets/traefik/gcp_service_account.json.age;
+      owner = "traefik";
+    };
+
+    services.traefik = {
+      enable = true;
+
+      staticConfigOptions = {
+        metrics.prometheus = {
+          addEntryPointsLabels = true;
+          addRoutersLabels = true;
+          addServicesLabels = true;
+        };
+
+        global = {
+          checkNewVersion = false;
+          sendAnonymousUsage = false;
+        };
+
+        accessLog.format = "json";
+        log.level = "warn";
+
+        entryPoints.http.http.redirections = {
+          entryPoint.to = "https";
+          entryPoint.scheme = "https";
+          entryPoint.permanent = true;
+        };
+
+        entryPoints.http.address = ":80";
+        entryPoints.https.address = ":443";
+        # the default is 8080, which conflict with unifi
+        entryPoints.traefik.address = ":8090";
+
+        api = {
+          dashboard = true;
+          insecure = true;
+        };
+
+        # The unifi controller runs on HTTPS with a self-signed
+        # certificate, as a result we need to accept insecure
+        # certificates.
+        serversTransport.insecureSkipVerify = true;
+
+        certificatesResolvers = {
+          le-http.acme = {
+            email = "franck@fcuny.net";
+            storage = "/var/lib/traefik/cert.json";
+            httpChallenge = { entryPoint = "http"; };
+          };
+          le-dns.acme = {
+            email = "franck@fcuny.net";
+            storage = "/var/lib/traefik/cert.json";
+            dnsChallenge = {
+              provider = "gcloud";
+              delayBeforeCheck = 0;
+            };
+          };
+        };
+      };
+    };
+
+    services.traefik.dynamicConfigOptions = mkMerge [
+      (mkServiceConfig "dash" "http://127.0.0.1:3000/" domainPrivate "le-dns")
+      (mkServiceConfig "bt" "http://127.0.0.1:9091/" domainPrivate "le-dns")
+      (mkServiceConfig "unifi" "https://127.0.0.1:8443/" domainPrivate "le-dns")
+      (mkServiceConfig "music" "http://127.0.0.1:4533/" domainPrivate "le-dns")
+      (mkServiceConfig "git" "http://127.0.0.1:8002/" domainPrivate "le-dns")
+      (mkServiceConfig "git" "http://127.0.0.1:8002/" domainPublic "le-http")
+    ];
+
+    systemd.services.traefik.environment.GCE_SERVICE_ACCOUNT_FILE =
+      config.age.secrets.traefik_gcp_sa.path;
+    systemd.services.traefik.environment.GCE_PROJECT = "fcuny-homelab";
+
+    networking.firewall.allowedTCPPorts = [ 80 443 ];
+    networking.firewall.allowedUDPPorts = [ 443 ]; # QUIC
+  };
+}
-- 
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