From ec941f994fbc72ab9291e4fef39f167d17c0137e Mon Sep 17 00:00:00 2001
From: Jesse Luehrs <doy@tozt.net>
Date: Wed, 21 Feb 2024 00:27:17 -0500
Subject: add an attempt at basic headscale configuration

---
 modules/headscale/manifests/init.pp         | 23 +++++++++++++++++++++++
 modules/headscale/templates/config.yaml     | 11 +++++++++++
 modules/tozt/files/nginx/headscale-tls.conf | 29 +++++++++++++++++++++++++++++
 modules/tozt/files/nginx/headscale.conf     | 10 ++++++++++
 modules/tozt/manifests/headscale.pp         | 16 ++++++++++++++++
 5 files changed, 89 insertions(+)
 create mode 100644 modules/headscale/manifests/init.pp
 create mode 100644 modules/headscale/templates/config.yaml
 create mode 100644 modules/tozt/files/nginx/headscale-tls.conf
 create mode 100644 modules/tozt/files/nginx/headscale.conf
 create mode 100644 modules/tozt/manifests/headscale.pp

diff --git a/modules/headscale/manifests/init.pp b/modules/headscale/manifests/init.pp
new file mode 100644
index 0000000..183285e
--- /dev/null
+++ b/modules/headscale/manifests/init.pp
@@ -0,0 +1,23 @@
+class headscale($data_dir) {
+  package { "headscale":
+    ensure => installed;
+  }
+
+  file {
+    $data_dir:
+      ensure => directory;
+    "/etc/headscale/config.yaml":
+      content => template("headscale/config.yaml"),
+      require => Package['headscale'];
+  }
+
+  service { "headscale":
+    ensure => running,
+    enable => true,
+    require => [
+      File[$data_dir],
+      File['/etc/headscale/config.yaml'],
+      Package['headscale'],
+    ];
+  }
+}
diff --git a/modules/headscale/templates/config.yaml b/modules/headscale/templates/config.yaml
new file mode 100644
index 0000000..296fdd5
--- /dev/null
+++ b/modules/headscale/templates/config.yaml
@@ -0,0 +1,11 @@
+server_url: https://headscale.tozt.net
+listen_addr: 0.0.0.0:8080
+metrics_listen_addr: 0.0.0.0:9090
+private_key_path: <%= @data_dir %>/private.key
+noise:
+  private_key_path: <%= @data_dir %>/noise_private.key
+ip_prefixes:
+  - 100.64.0.0/10
+disable_check_updates: true
+db_type: sqlite3
+db_path: <%= @data_dir %>/db.sqlite
diff --git a/modules/tozt/files/nginx/headscale-tls.conf b/modules/tozt/files/nginx/headscale-tls.conf
new file mode 100644
index 0000000..392264d
--- /dev/null
+++ b/modules/tozt/files/nginx/headscale-tls.conf
@@ -0,0 +1,29 @@
+map $http_upgrade $connection_upgrade {
+    default      keep-alive;
+    'websocket'  upgrade;
+    ''           close;
+}
+
+server {
+    listen       443 ssl http2;
+    server_name  headscale.tozt.net;
+
+    access_log  /var/log/nginx/headscale.access.log;
+    error_log   /var/log/nginx/headscale.error.log;
+
+    include ssl;
+
+    location / {
+        proxy_pass http://127.0.0.1:8081;
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection $connection_upgrade;
+        proxy_set_header Host $server_name;
+        proxy_buffering off;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $http_x_forwarded_proto;
+        add_header Strict-Transport-Security "max-age=15552000; includeSubDomains" always;
+    }
+}
+# vim:ft=nginx
diff --git a/modules/tozt/files/nginx/headscale.conf b/modules/tozt/files/nginx/headscale.conf
new file mode 100644
index 0000000..830a95c
--- /dev/null
+++ b/modules/tozt/files/nginx/headscale.conf
@@ -0,0 +1,10 @@
+server {
+    listen       80;
+    server_name  headscale.tozt.net;
+
+    access_log   /var/log/nginx/headscale.access.log;
+    error_log    /var/log/nginx/headscale.error.log;
+
+    rewrite      ^(.*) https://$host$1 permanent;
+}
+# vim:ft=nginx
diff --git a/modules/tozt/manifests/headscale.pp b/modules/tozt/manifests/headscale.pp
new file mode 100644
index 0000000..b337e3b
--- /dev/null
+++ b/modules/tozt/manifests/headscale.pp
@@ -0,0 +1,16 @@
+class tozt::headscale {
+  include tozt::certbot
+  include tozt::persistent
+
+  class { "headscale":
+    data_dir => "/media/persistent/headscale";
+  }
+
+  nginx::site {
+    "headscale-tls":
+      source => 'puppet:///modules/tozt/nginx/headscale-tls.conf',
+      require => Class['certbot'];
+    "headscale":
+      source => 'puppet:///modules/tozt/nginx/headscale.conf';
+  }
+}
-- 
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