From f577a5e296bc1ab683b17025fb9a12e1742e6eb8 Mon Sep 17 00:00:00 2001
From: Jake Howard <git@theorangeone.net>
Date: Sun, 14 May 2023 15:33:07 +0100
Subject: [PATCH] Add aurto server for AUR caching

---
 ansible/group_vars/all/pve.yml        |  4 ++-
 ansible/hosts                         |  1 +
 ansible/main.yml                      |  4 +++
 ansible/roles/aurto/files/nginx.conf  | 43 ++++++++++++++++++++++++++
 ansible/roles/aurto/handlers/main.yml |  5 +++
 ansible/roles/aurto/tasks/main.yml    | 44 +++++++++++++++++++++++++++
 ansible/roles/aurto/tasks/nginx.yml   | 29 ++++++++++++++++++
 7 files changed, 129 insertions(+), 1 deletion(-)
 create mode 100644 ansible/roles/aurto/files/nginx.conf
 create mode 100644 ansible/roles/aurto/handlers/main.yml
 create mode 100644 ansible/roles/aurto/tasks/main.yml
 create mode 100644 ansible/roles/aurto/tasks/nginx.yml

diff --git a/ansible/group_vars/all/pve.yml b/ansible/group_vars/all/pve.yml
index ba8d67c..d12bfff 100644
--- a/ansible/group_vars/all/pve.yml
+++ b/ansible/group_vars/all/pve.yml
@@ -21,4 +21,6 @@ pve_hosts:
   renovate:
     ip: 10.23.1.110
   gitea_runner:
-    ip: 20.23.1.114
+    ip: 10.23.1.114
+  aurto:
+    ip: 10.23.1.106
diff --git a/ansible/hosts b/ansible/hosts
index 594edbd..94043d8 100644
--- a/ansible/hosts
+++ b/ansible/hosts
@@ -14,3 +14,4 @@ qbittorrent
 restic
 renovate
 gitea-runner
+aurto
diff --git a/ansible/main.yml b/ansible/main.yml
index 83ce909..9573444 100644
--- a/ansible/main.yml
+++ b/ansible/main.yml
@@ -135,3 +135,7 @@
     - pihole
     - role: prometheus.prometheus.node_exporter
       become: true
+
+- hosts: aurto
+  roles:
+    - aurto
diff --git a/ansible/roles/aurto/files/nginx.conf b/ansible/roles/aurto/files/nginx.conf
new file mode 100644
index 0000000..8b6101e
--- /dev/null
+++ b/ansible/roles/aurto/files/nginx.conf
@@ -0,0 +1,43 @@
+worker_processes  auto;
+
+events {
+    worker_connections  1024;
+}
+
+http {
+    include       mime.types;
+    default_type  application/octet-stream;
+
+    sendfile        on;
+    tcp_nopush     on;
+
+    keepalive_timeout  65;
+
+    server {
+        listen 80;
+
+        root /var/cache/pacman/aurto;
+
+        auth_basic "Restricted";
+        auth_basic_user_file /etc/nginx/.htpasswd;
+
+        # gzip
+        gzip on;
+        gzip_types *;
+
+        # IP detection
+        set_real_ip_from  0.0.0.0/0;
+        real_ip_header X-Forwarded-For;
+
+        # Kick malicious clients sooner
+        client_header_timeout 10s;
+        client_body_timeout 10s;
+        client_max_body_size 128k;
+        reset_timedout_connection on;
+        sendfile_max_chunk 1m;
+        keepalive_timeout 65;
+
+        # Ensure 403s respond with 404
+        error_page 403 /dev/null;
+    }
+}
diff --git a/ansible/roles/aurto/handlers/main.yml b/ansible/roles/aurto/handlers/main.yml
new file mode 100644
index 0000000..460c29a
--- /dev/null
+++ b/ansible/roles/aurto/handlers/main.yml
@@ -0,0 +1,5 @@
+- name: restart nginx
+  service:
+    name: nginx
+    state: restarted
+  become: true
diff --git a/ansible/roles/aurto/tasks/main.yml b/ansible/roles/aurto/tasks/main.yml
new file mode 100644
index 0000000..3adee0f
--- /dev/null
+++ b/ansible/roles/aurto/tasks/main.yml
@@ -0,0 +1,44 @@
+- name: Install aurto
+  package:
+    name: aurto
+  become: true
+
+- name: Create aurto user
+  user:
+    name: aurto
+    system: true
+  become: true
+
+- name: Ensure aurto repository has the correct owner
+  file:
+    path: /var/cache/pacman/aurto
+    state: directory
+    owner: aurto
+    mode: u=rwX,g=rwX,o=rX
+    recurse: true
+  become: true
+
+- name: Update aurto user
+  copy:
+    content: aurto
+    dest: /usr/lib/aurto/user
+    mode: "0700"
+    owner: aurto
+  become: true
+
+- name: Ensure trusted users have the correct permissions
+  file:
+    dest: /etc/aurto/trusted-users
+    mode: "0640"
+    owner: aurto
+  become: true
+
+- name: Allow aurto to run required commands as root
+  ansible.builtin.replace:
+    path: /etc/sudoers.d/50_aurto_passwordless
+    regexp: ^%wheel (.+)$
+    replace: aurto \1
+  become: true
+
+- name: Configure nginx
+  include_tasks: nginx.yml
diff --git a/ansible/roles/aurto/tasks/nginx.yml b/ansible/roles/aurto/tasks/nginx.yml
new file mode 100644
index 0000000..376d338
--- /dev/null
+++ b/ansible/roles/aurto/tasks/nginx.yml
@@ -0,0 +1,29 @@
+- name: Install nginx
+  package:
+    name: nginx
+  become: true
+
+- name: Enable nginx
+  service:
+    name: nginx
+    enabled: true
+  become: true
+
+- name: Add a user to a password file and ensure permissions are set
+  community.general.htpasswd:
+    path: /etc/nginx/.htpasswd
+    name: aurto
+    password: aurto
+    owner: http
+    group: http
+    mode: 0600
+  become: true
+  notify: restart nginx
+
+- name: Nginx config
+  template:
+    src: files/nginx.conf
+    dest: /etc/nginx/nginx.conf
+    mode: "0600"
+  become: true
+  notify: restart nginx