Add Pi-hole and Traefik LXC containers

- LXC 103 (pihole): Debian 12, 10.10.1.2, Pi-hole v6 with local DNS for
  gitea/grafana/traefik/pihole.homelab, Proxmox dnsmasq updated to use
  Pi-hole upstream
- LXC 104 (traefik): Debian 12, 10.10.1.3, Traefik v3 routing
  gitea.homelab → 10.10.1.125:3000, grafana.homelab → 10.10.1.137:3000
- DNAT rules on vmbr0 forwarding :80/:443 to Traefik, persisted in
  /etc/network/interfaces
- Ansible roles: pihole, traefik; playbooks: pihole.yml, traefik.yml
- site.yml excludes Debian containers from Arch-specific common role

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.claude/scheduled_tasks.lock

@@ -0,0 +1 @@
+{"sessionId":"e2025a38-3d43-46f4-8c97-bbac5bc5681b","pid":40455,"procStart":"489090","acquiredAt":1778850952882}

ansible/inventory/group_vars/all/vault.yml

@@ -1,33 +1,35 @@
 $ANSIBLE_VAULT;1.1;AES256
-34333966316434323536326366663637633834393865623238636338306361393837393530363665
+30353336323330616638366131616265353935386336623962313139666630386233333435376132
-3566366534376133643163376261343461653336643136330a356162653062663538636466346438
+6632383465666533323435613938636564636166353265300a636531383030323130356439663538
-31626464363033623331353037333131356434386631616566323337616166306431383330333261
+39373933303438346138306430393831663236626132353031623837643563353536383432393866
-6464656132613962610a306163353135653131623064386337643563646266623839383138326133
+3963613139663531620a613631636261653764663539323363326538373438326666646666643432
-31353466653633323030326432633364376236313239623439663265393365356262393138666263
+66663430333263653439613937326134653830663631363236663238663933613363343039393734
-62323962306439643166613930383933323132316132363236363639333336663237643966386337
+62313035653337363836633333636231643635656134396639653431646236353737353133343631
-63633764663263303933336332343266333161333835363235303965373134386434373532646137
+30343237373232356532363732366236343565353739353065363562643932386164366163343235
-38663965396332356561363932633736613836393861626435666162396666633033393963353264
+33363837626434306339623733623464646633656431643732303330353232656439313639363362
-35633438316238623933623966306330363432386632653936323436656337306430383439356462
+33376364343965323464663634386530303462613833333136623635366537363265646163653038
-64396137316464363835373137366434323263343330313163653638306434616635656537656264
+38376563353865636437313838313236333662376430303930356432663261383834626563343139
-66396366666562643734313235613364623734613662663161636332353035346666373732613165
+66643730373239623737383138663935313031373062646363663865366233383663336330333134
-64356630323239363665383933363139613738323866326134613661663731396566323065383438
+30333032366131363630303735653265636337616531656133343935306136303830333439656230
-39613335383434613432666266343935646537613266386335393131333635343633653736373634
+36303565643939616138323932393637373935396264666162356538313165656438306232613665
-64653164396439363631643565663839623966343165666236303434666431636431356136613335
+64666334306134323730383665666664303930646630343636653335653735323561393061323031
-36353166336664333031663435323161363137386237343034383863356430323433343766646134
+65643831353464353235626535346337663263396432356232323434653562656365386663636131
-36366665313130373363303136346239633538393230313832663430393233663062343834383534
+39663136313664353331373164616331626135356234623961663430653661316465393439643033
-64373363376139663165363663333962353538326461353838383865653963343036366336343563
+64653562383533383839386237323439376139333962396336386633653566656563636533366336
-65613336386438373262666263633761386332303737613038333735336639613230336636333265
+35313366336266633636383763643463376134316366393235313964313239373836336665353339
-30393735643432623935363832313738376630373036623630663735343935386165616133333563
+66303531336333646333326265646331353363653036313261663462626462653964306465383665
-63366637313961653264346539383233346465383263353566326134396333663632636630343133
+66313331656538336534653166363535336232316363303335663835656566623132383131373436
-64636261346437333166316430643437393032396237353231346136363634353838376238386335
+36366235643935373061366565623761333335666163326464326636626462663661346163323438
-39613865346266396639353838316331356430343331633330636534316335633563623464613661
+64653234333236383039393963336235643163653834303237366363633330613639353332616535
-34646132333135303361336135303263636362353937346635356464656438623539353836383132
+61323265346161313561396435643630383435633466636639316665353366343266306232663439
-65626566366539306536663462373236616430343135633439643836363365323761373463356131
+32653662666631636662323833646562353861333365303430326130633832313162316337643063
-65363337313334393265383362666639636132623032303764326335306336616136646165376264
+34393038646164363837306461303634653464343232663139363237353939323137333238613537
-30383561303866646138643734666462653765653362383163346432303435663738633936383866
+34616139376632373931343437316337383332343162363939633634303831353336333433633935
-39613831323436393061666532343765333331313961636164346338656561353731323064316630
+39343439313865343036376634653863653137653131363866363761653065313738316663383239
-32626238633863353530356436383665363239663965356564356239313334393732363265656665
+38383232626262303463393164326366633138313932366530663136616233313831303337316537
-30386266313538336339303731386634643839383261383361333931333739383563316134666331
+38343661663264303337346161323135366164373039663934343261663237396563383239663262
-66323064353733303838393635653037373538616138323763396536343064323633656562643337
+39383765643765396331333938666335663862303962353562663361323764643031373431306664
-39636138633066356134303739363061653065643464393331626531623030653766313764623630
+61646561353732323765363034326362663239666634316639356232633934663130663431613236
-64636434636233653065
+64336335653664646430653061313836386361316564353334336364626332303839363335343363
+65653931363331383834373364616538336135633936363533383461373931666666373863386438
+3231333561313139393966383964613731616139666536613536

ansible/inventory/group_vars/pihole_servers/vars.yml

@@ -0,0 +1,2 @@
+ansible_user: root
+ansible_become: false

ansible/inventory/group_vars/traefik_servers/vars.yml

@@ -0,0 +1,2 @@
+ansible_user: root
+ansible_become: false

ansible/inventory/hosts.yml

@@ -9,6 +9,10 @@ all:
           ansible_host: 10.10.1.125
         monitoring:
           ansible_host: 10.10.1.137
+        pihole:
+          ansible_host: 10.10.1.2
+        traefik:
+          ansible_host: 10.10.1.3
 
     monitoring_servers:
       hosts:
@@ -17,3 +21,11 @@ all:
     gitea_servers:
       hosts:
         gitea:
+
+    pihole_servers:
+      hosts:
+        pihole:
+
+    traefik_servers:
+      hosts:
+        traefik:

ansible/playbooks/pihole.yml

@@ -0,0 +1,5 @@
+---
+- name: Deploy Pi-hole
+  hosts: pihole_servers
+  roles:
+    - pihole

ansible/playbooks/site.yml

@@ -1,6 +1,6 @@
 ---
-- name: Common setup for all VMs
+- name: Common setup for all Arch VMs
-  hosts: all
+  hosts: all:!pihole_servers:!traefik_servers
   roles:
     - common
     - node_exporter
@@ -15,3 +15,13 @@
   hosts: gitea_servers
   roles:
     - gitea
+
+- name: Pi-hole
+  hosts: pihole_servers
+  roles:
+    - pihole
+
+- name: Traefik
+  hosts: traefik_servers
+  roles:
+    - traefik

ansible/playbooks/traefik.yml

@@ -0,0 +1,5 @@
+---
+- name: Deploy Traefik
+  hosts: traefik_servers
+  roles:
+    - traefik

ansible/roles/pihole/defaults/main.yml

@@ -0,0 +1,11 @@
+---
+pihole_password: "{{ vault_pihole_password }}"
+pihole_dns_upstream1: "8.8.8.8"
+pihole_dns_upstream2: "8.8.4.4"
+pihole_local_domain: "homelab"
+pihole_interface: "eth0"
+pihole_dns_hosts:
+  - { ip: "10.10.1.2",   host: "pihole.homelab" }
+  - { ip: "10.10.1.3",   host: "traefik.homelab" }
+  - { ip: "10.10.1.125", host: "gitea.homelab" }
+  - { ip: "10.10.1.137", host: "grafana.homelab" }

ansible/roles/pihole/handlers/main.yml

@@ -0,0 +1,10 @@
+---
+- name: Restart pihole-FTL
+  ansible.builtin.service:
+    name: pihole-FTL
+    state: restarted
+
+- name: Update pihole hosts
+  ansible.builtin.command:
+    cmd: python3 /tmp/pihole_update_hosts.py
+  notify: Restart pihole-FTL

ansible/roles/pihole/tasks/main.yml

@@ -0,0 +1,58 @@
+---
+- name: Install Pi-hole dependencies
+  ansible.builtin.apt:
+    name:
+      - curl
+      - git
+      - libcap2-bin
+      - dns-root-data
+    state: present
+    update_cache: true
+
+- name: Create Pi-hole config directory
+  ansible.builtin.file:
+    path: /etc/pihole
+    state: directory
+    mode: "0755"
+
+- name: Write Pi-hole setup vars
+  ansible.builtin.template:
+    src: setupVars.conf.j2
+    dest: /etc/pihole/setupVars.conf
+    mode: "0644"
+
+- name: Check if Pi-hole is already installed
+  ansible.builtin.stat:
+    path: /usr/local/bin/pihole
+  register: pihole_binary
+
+- name: Download Pi-hole installer
+  ansible.builtin.get_url:
+    url: https://install.pi-hole.net
+    dest: /tmp/pihole-install.sh
+    mode: "0755"
+  when: not pihole_binary.stat.exists
+
+- name: Run Pi-hole unattended installer
+  ansible.builtin.command:
+    cmd: /tmp/pihole-install.sh --unattended
+    creates: /usr/local/bin/pihole
+  when: not pihole_binary.stat.exists
+
+- name: Set Pi-hole web password
+  ansible.builtin.command:
+    cmd: /usr/local/bin/pihole setpassword "{{ pihole_password }}"
+  changed_when: true
+
+- name: Set local DNS hosts in pihole.toml
+  ansible.builtin.template:
+    src: update_hosts.py.j2
+    dest: /tmp/pihole_update_hosts.py
+    mode: "0755"
+  notify: Update pihole hosts
+
+- name: Ensure pihole-FTL is running
+  ansible.builtin.service:
+    name: pihole-FTL
+    state: started
+    enabled: true

ansible/roles/pihole/templates/setupVars.conf.j2

@@ -0,0 +1,15 @@
+PIHOLE_INTERFACE={{ pihole_interface }}
+PIHOLE_DNS_1={{ pihole_dns_upstream1 }}
+PIHOLE_DNS_2={{ pihole_dns_upstream2 }}
+QUERY_LOGGING=true
+INSTALL_WEB_SERVER=true
+INSTALL_WEB_INTERFACE=true
+LIGHTTPD_ENABLED=true
+CACHE_SIZE=10000
+DNS_FQDN_REQUIRED=false
+DNS_BOGUS_PRIV=true
+DNSMASQ_LISTENING=local
+WEBPASSWORD=
+BLOCKING_ENABLED=true
+PIHOLE_DOMAIN={{ pihole_local_domain }}
+IPV4_ADDRESS=10.10.1.2/24

ansible/roles/pihole/templates/update_hosts.py.j2

@@ -0,0 +1,22 @@
+#!/usr/bin/env python3
+import re
+
+hosts = [
+{% for h in pihole_dns_hosts %}
+    "{{ h.ip }} {{ h.host }}",
+{% endfor %}
+]
+
+hosts_str = "[" + ", ".join('"' + h + '"' for h in hosts) + "]"
+
+with open("/etc/pihole/pihole.toml", "r") as f:
+    content = f.read()
+
+content = re.sub(
+    r"(?m)^( *hosts\s*=\s*)\[.*\]",
+    r"\g<1>" + hosts_str,
+    content,
+)
+
+with open("/etc/pihole/pihole.toml", "w") as f:
+    f.write(content)

ansible/roles/traefik/defaults/main.yml

@@ -0,0 +1,17 @@
+---
+traefik_version: "3.3.4"
+traefik_http_port: 80
+traefik_https_port: 443
+traefik_dashboard_port: 8080
+traefik_log_level: "INFO"
+
+traefik_services:
+  - name: gitea
+    host: "gitea.homelab"
+    backend: "http://10.10.1.125:3000"
+  - name: grafana
+    host: "grafana.homelab"
+    backend: "http://10.10.1.137:3000"
+  - name: pihole
+    host: "pihole.homelab"
+    backend: "http://10.10.1.2:80"

ansible/roles/traefik/handlers/main.yml

@@ -0,0 +1,9 @@
+---
+- name: Reload systemd
+  ansible.builtin.systemd:
+    daemon_reload: true
+
+- name: Restart traefik
+  ansible.builtin.systemd:
+    name: traefik
+    state: restarted

ansible/roles/traefik/tasks/main.yml

@@ -0,0 +1,86 @@
+---
+- name: Install dependencies
+  ansible.builtin.apt:
+    name:
+      - curl
+      - ca-certificates
+    state: present
+    update_cache: true
+
+- name: Create traefik user
+  ansible.builtin.user:
+    name: traefik
+    system: true
+    shell: /usr/sbin/nologin
+    home: /etc/traefik
+    create_home: false
+
+- name: Create traefik directories
+  ansible.builtin.file:
+    path: "{{ item }}"
+    state: directory
+    owner: traefik
+    group: traefik
+    mode: "0750"
+  loop:
+    - /etc/traefik
+    - /etc/traefik/conf.d
+
+- name: Check installed Traefik version
+  ansible.builtin.command:
+    cmd: /usr/local/bin/traefik version
+  register: traefik_installed_version
+  changed_when: false
+  failed_when: false
+
+- name: Download Traefik binary
+  ansible.builtin.get_url:
+    url: "https://github.com/traefik/traefik/releases/download/v{{ traefik_version }}/traefik_v{{ traefik_version }}_linux_amd64.tar.gz"
+    dest: /tmp/traefik.tar.gz
+    mode: "0644"
+  when: traefik_version not in (traefik_installed_version.stdout | default(''))
+
+- name: Extract Traefik binary
+  ansible.builtin.unarchive:
+    src: /tmp/traefik.tar.gz
+    dest: /usr/local/bin
+    include:
+      - traefik
+    remote_src: true
+    mode: "0755"
+  when: traefik_version not in (traefik_installed_version.stdout | default(''))
+  notify: Restart traefik
+
+- name: Write Traefik static config
+  ansible.builtin.template:
+    src: traefik.yml.j2
+    dest: /etc/traefik/traefik.yml
+    owner: traefik
+    group: traefik
+    mode: "0640"
+  notify: Restart traefik
+
+- name: Write Traefik dynamic routes config
+  ansible.builtin.template:
+    src: routes.yml.j2
+    dest: /etc/traefik/conf.d/routes.yml
+    owner: traefik
+    group: traefik
+    mode: "0640"
+  notify: Restart traefik
+
+- name: Write Traefik systemd service
+  ansible.builtin.template:
+    src: traefik.service.j2
+    dest: /etc/systemd/system/traefik.service
+    mode: "0644"
+  notify:
+    - Reload systemd
+    - Restart traefik
+
+- name: Enable and start Traefik
+  ansible.builtin.systemd:
+    name: traefik
+    state: started
+    enabled: true
+    daemon_reload: true

ansible/roles/traefik/templates/routes.yml.j2

@@ -0,0 +1,17 @@
+http:
+  routers:
+{% for svc in traefik_services %}
+    {{ svc.name }}:
+      rule: "Host(`{{ svc.host }}`)"
+      service: {{ svc.name }}
+      entryPoints:
+        - web
+{% endfor %}
+
+  services:
+{% for svc in traefik_services %}
+    {{ svc.name }}:
+      loadBalancer:
+        servers:
+          - url: "{{ svc.backend }}"
+{% endfor %}

ansible/roles/traefik/templates/traefik.service.j2

@@ -0,0 +1,18 @@
+[Unit]
+Description=Traefik reverse proxy
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+Type=notify
+User=traefik
+Group=traefik
+ExecStart=/usr/local/bin/traefik --configFile=/etc/traefik/traefik.yml
+Restart=on-failure
+RestartSec=5
+NoNewPrivileges=true
+AmbientCapabilities=CAP_NET_BIND_SERVICE
+CapabilityBoundingSet=CAP_NET_BIND_SERVICE
+
+[Install]
+WantedBy=multi-user.target

ansible/roles/traefik/templates/traefik.yml.j2

@@ -0,0 +1,15 @@
+api:
+  dashboard: true
+  insecure: true
+
+entryPoints:
+  web:
+    address: ":{{ traefik_http_port }}"
+
+providers:
+  file:
+    directory: /etc/traefik/conf.d
+    watch: true
+
+log:
+  level: {{ traefik_log_level }}