setup NUT

group_vars/all.yml

@@ -278,3 +278,17 @@ hydroqc2mqtt:
 
 homeassistant:
   version: 2024.1.3
+
+nut_server:
+  ansible_host: usbip
+  ups:
+    liebert-ps1:
+      driver: usbhid-ups
+      vendorid: "10af"
+      productid: "0001"
+
+nut_client:
+  ups: liebert-ps1
+  sched:
+    # How many seconds we are allowed to run on battery
+    on_bat: 300

hosts

@@ -18,6 +18,11 @@ all:
       hosts:
         router-0:
           ansible_host: 192.168.10.10
+          nut_client:
+            ups: liebert-ps1
+            sched:
+              # We want to shutdown this server last
+              on_bat: 3600
         server-0:
           ansible_host: 192.168.10.11
           vfio_pci_ids:
@@ -28,6 +33,11 @@ all:
             # - '1002:731f' # Advanced Micro Devices, Inc. [AMD/ATI] Navi 10 [Radeon RX 5600 OEM/5600 XT / 5700/5700 XT]
             - '10de:13c2' # NVIDIA Corporation GM204 [GeForce GTX 970]
             - '10de:13f1' # VGA compatible controller [0300]: NVIDIA Corporation GM204GL [Quadro M4000]
+          nut_client:
+            ups: liebert-ps1
+            sched:
+              # We want to shutdown this server quick
+              on_bat: 10
     bastion:
       hosts:
         bastion:

playbook.yml

@@ -1,13 +1,22 @@
+
+- hosts: usbip
+  roles:
+    - usbip
+    - nut-server
+
 - hosts: proxmox
   roles:
     - proxmox
+    - nut-client
 
 - hosts: k3s-server
   roles:
     - k3s-server
+    - nut-client
 - hosts: k3s-agent
   roles:
     - k3s-agent
+    - nut-client
 
 - hosts: generic-linux
   roles:
@@ -53,7 +62,3 @@
 - hosts: cups
   roles:
     - cups
-
-- hosts: usbip
-  roles:
-    - usbip

roles/k3s-agent/templates/k3s.service

@@ -6,7 +6,7 @@ After=network-online.target
 Type=notify
 ExecStartPre=-/sbin/modprobe br_netfilter
 ExecStartPre=-/sbin/modprobe overlay
-ExecStart=/usr/local/bin/k3s agent --server https://{{ hostvars[groups['k3s-server'][0]]['ansible_facts']['default_ipv4']['address'] }}:6443 --token {{ hostvars[groups['k3s-server'][0]]['token'] }} {{ k3s.extra_agent_args | default("") }} {{ k3s_extra_args }}
+ExecStart=/usr/local/bin/k3s agent --server https://{{ hostvars[groups['k3s-server'][0]]['ansible_default_ipv4']['address'] }}:6443 --token {{ hostvars[groups['k3s-server'][0]]['token'] }} {{ k3s.extra_agent_args | default("") }} {{ k3s_extra_args }}
 KillMode=process
 Delegate=yes
 # Having non-zero Limit*s causes performance problems due to accounting overhead

roles/nut-client/files/nut.conf

@@ -0,0 +1 @@
+MODE=netclient

roles/nut-client/files/upssched-cmd

@@ -0,0 +1,14 @@
+#!/bin/sh
+case $1 in
+      shutdown)
+         logger -t upssched-cmd "UPS on battery too long, shutdown"
+         /usr/bin/sudo /usr/sbin/shutdown -h +0
+         ;;
+      shutdown-critical)
+         logger -t upssched-cmd "UPS on battery critical, forced shutdown"
+         /usr/sbin/upsmon -c fsd
+         ;;
+      *)
+         logger -t upssched-cmd "Unrecognized command: $1"
+         ;;
+esac

roles/nut-client/handlers/main.yml

@@ -0,0 +1,5 @@
+- name: Restart nut-client
+  service:
+    name: nut-client
+    enabled: true
+    state: restarted

roles/nut-client/tasks/main.yml

@@ -0,0 +1,41 @@
+- name: Install NUT
+  apt:
+    update_cache: true
+    name:
+      - nut-client
+
+- name: Configure upsmon.conf
+  template:
+    src: upsmon.conf
+    dest: /etc/nut/upsmon.conf
+  notify:
+    - Restart nut-client
+
+- name: Configure nut.conf
+  copy:
+    src: nut.conf
+    dest: /etc/nut/nut.conf
+  notify:
+    - Restart nut-client
+
+- name: Configure upssched.conf
+  template:
+    src: upssched.conf
+    dest: /etc/nut/upssched.conf
+  notify:
+    - Restart nut-client
+
+- name: Configure upssched-cmd
+  copy:
+    src: upssched-cmd
+    dest: /etc/nut/upssched-cmd
+    mode: '0755'
+  notify:
+    - Restart nut-client
+
+- name: Allow nut user to invoke shutdown with sudo
+  lineinfile:
+    path: /etc/sudoers
+    line: 'nut ALL=NOPASSWD: /usr/sbin/shutdown'
+    regexp: '^nut\s+'
+    validate: '/usr/sbin/visudo -cf %s'

roles/nut-client/templates/upsmon.conf

@@ -0,0 +1,21 @@
+# TODO: setup credentials
+MONITOR {{ nut_client.ups }}@{{ hostvars[nut_server.ansible_host]['ansible_default_ipv4']['address'] }} 1 monuser admin secondary
+
+
+MINSUPPLIES 1
+SHUTDOWNCMD "/sbin/shutdown -h +0"
+NOTIFYCMD /usr/sbin/upssched
+POLLFREQ 5
+POLLFREQALERT 5
+HOSTSYNC 15
+DEADTIME 15
+POWERDOWNFLAG /run/killpower
+
+NOTIFYFLAG ONLINE	SYSLOG+WALL+EXEC
+NOTIFYFLAG ONBATT	SYSLOG+WALL+EXEC
+NOTIFYFLAG LOWBATT	SYSLOG+WALL+EXEC
+
+RBWARNTIME 43200
+NOCOMMWARNTIME 300
+
+FINALDELAY 5

roles/nut-client/templates/upssched.conf

@@ -0,0 +1,11 @@
+CMDSCRIPT /etc/nut/upssched-cmd
+PIPEFN /run/nut/upssched.pipe
+LOCKFN /run/nut/upssched.lock
+
+AT ONBATT * START-TIMER shutdown {{ nut_client.sched.on_bat }}
+AT ONLINE * CANCEL-TIMER shutdown
+AT LOWBATT * EXECUTE shutdown-critical
+#AT COMMBAD * START-TIMER commbad {#{ nut_client.sched.comm_bad}#}
+#AT COMMOK * CANCEL-TIMER commbad commok
+#AT NOCOMM * EXECUTE commbad
+#AT SHUTDOWN * EXECUTE powerdown

roles/nut-server/files/nut.conf

@@ -0,0 +1 @@
+MODE=netserver

roles/nut-server/files/upsd.conf

@@ -0,0 +1 @@
+LISTEN 0.0.0.0 3493

roles/nut-server/files/upsd.users

@@ -0,0 +1,4 @@
+# TODO: setup credentials
+[monuser]
+    password = admin
+    upsmon secondary

roles/nut-server/handlers/main.yml

@@ -0,0 +1,17 @@
+- name: Restart nut-server
+  service:
+    name: nut-server
+    enabled: true
+    state: restarted
+
+- name: Restart nut-client
+  service:
+    name: nut-server
+    enabled: true
+    state: restarted
+
+- name: Restart nut-monitor
+  service:
+    name: nut-monitor
+    enabled: true
+    state: restarted

roles/nut-server/tasks/main.yml

@@ -0,0 +1,52 @@
+- name: Install NUT
+  apt:
+    update_cache: true
+    name:
+      - nut
+      - nut-client
+      - nut-server
+
+- name: Configure ups.conf
+  template:
+    src: ups.conf
+    dest: /etc/nut/ups.conf
+  notify:
+    - Restart nut-server
+    - Restart nut-client
+    - Restart nut-monitor
+
+- name: Configure upsmon.conf
+  template:
+    src: upsmon.conf
+    dest: /etc/nut/upsmon.conf
+  notify:
+    - Restart nut-server
+    - Restart nut-client
+    - Restart nut-monitor
+
+- name: Configure upsd.conf
+  copy:
+    src: upsd.conf
+    dest: /etc/nut/upsd.conf
+  notify:
+    - Restart nut-server
+    - Restart nut-client
+    - Restart nut-monitor
+
+- name: Configure nut.conf
+  copy:
+    src: nut.conf
+    dest: /etc/nut/nut.conf
+  notify:
+    - Restart nut-server
+    - Restart nut-client
+    - Restart nut-monitor
+
+- name: Configure upsd.users
+  copy:
+    src: upsd.users
+    dest: /etc/nut/upsd.users
+  notify:
+    - Restart nut-server
+    - Restart nut-client
+    - Restart nut-monitor

roles/nut-server/templates/ups.conf

@@ -0,0 +1,9 @@
+maxretry = 3
+
+{% for name, config in nut_server.ups.items() %}
+[{{ name }}]
+    driver = {{ config.driver }}
+    port = auto
+    vendorid = {{ config.vendorid }}
+    productid = {{ config.productid }}
+{% endfor %}

roles/nut-server/templates/upsmon.conf

@@ -0,0 +1,4 @@
+# TODO: setup credentials
+{% for name in nut_server.ups.keys() %}
+MONITOR {{ name }}@localhost 1 monuser admin primary
+{% endfor %}