Prometheus exporter for APC UPSes controlled by apcupsd
- Export metrics about your APC UPS such as runtime remaining, battery charge, current load, etc.
- Inspect the current status of your APC UPS using
apcmetrics status - Inspect recent events for your APC UPS using
apcmetrics events
The following metrics are exported:
apc_info- Info about the UPSapc_status- Current status of the UPSapc_time_left- Remaining runtime left on the batteries in secondsapc_load_percent- Percentage of load capacityapc_charge_percent- Percentage of charge of the batteriesapc_line_voltage- Current line voltageapc_low_transfer_voltage- Line voltage below which the UPS will switch to batteriesapc_high_transfer_voltage- Line voltage above which the UPS will switch to batteriesapc_battery_voltage- Battery voltageapc_nominal_battery_voltage- Nominal battery voltageapc_nominal_input_voltage- Nominal input voltageapc_nominal_wattage- Max power the UPS is designed to supplyapc_battery_date- Date the batteries were last replaced as a UNIX timestampapc_last_time_on_battery- Last transfer on to batteries as a UNIX timestampapc_last_time_off_battery- Last transfer off of batteries as a UNIX timestampapc_last_self_test- Last self test as a UNIX timestamp
To build from source you'll need Go 1.16 installed.
git clone [email protected]:56quarters/apcmetrics.git && cd apcmetrics
make build
The apcmetrics binary will then be in the root of the checkout.
At the moment, apcmetrics is GNU/Linux specific. As such, these instructions assume a
GNU/Linux system.
To install apcmetrics after building as described above:
- Copy the binary to
/usr/local/bin
sudo cp apcmetrics /usr/local/bin/
- Copy and enable the Systemd unit
sudo cp ext/apcmetrics.service /etc/systemd/system/
sudo systemctl daemon-reload
sudo systemctl enable apcmetrics.service
- Start the daemon
sudo systemctl start apcmetrics.service
apcmetrics connects to apcupsd to read metrics about an APC UPS. As
such you will need an instance of apcupsd running that apcmetrics can connect to. apcmetrics
uses the NIS Server
feature of apcupsd which is usually enabled by default.
apcupsd can be installed on Debian or Ubuntu systems with apt-get install apcupsd. apcmetrics
must be able to connect to the server run by apcupsd. The easiest way to do this is to run
apcmetrics on the same host that apcupsd is running on.
Make sure the following settings are in place for apcupsd:
NETSERVER onNISIP <interface address>NISPORT 3551
The primary purpose of apcmetrics is to export metrics about an APC UPS to Prometheus. However,
it can also be used to inspect the current status of your UPS or recent events (such as power outages
and self-tests). Examples of how to do each are given below
apcmetrics must connect to apcupsd to export metrics. It defaults to collecting metrics from
a locally running apcupsd daemon using the default port of 3551. If apcupsd is not running
locally, you can supply the address using the --ups.address CLI flag.
An example of running apcmetrics this way:
./apcmetrics --ups.address=example:3551 metrics
In another terminal:
curl -s 'http://localhost:9780/metrics'
Prometheus metrics are exposed on port 9780 at /metrics by default. Once apcmetrics
is running, configure scrapes of it by your Prometheus server. Add the host running
apcmetrics as a target under the Prometheus scrape_configs section as described by
the example below.
# Sample config for Prometheus.
global:
scrape_interval: 15s
evaluation_interval: 15s
external_labels:
monitor: 'my_prom'
scrape_configs:
- job_name: apcmetrics
static_configs:
- targets: [ 'example:9780' ]Running apcmetrics status will display the current status of the APC UPS as JSON. It defaults to
collecting metrics from a locally running apcupsd daemon using the default port of 3551. If
apcupsd is not running locally, you can supply the address using the --ups.address CLI flag.
An example is given below.
$ apcmetrics status
{
"hostname": "example",
"version": "3.14.14 (31 May 2016) debian",
"ups_name": "example",
"model": "Back-UPS XS 1500 LCD",
"driver": "USB UPS Driver",
"ups_mode": "Stand Alone",
"status": "ONLINE",
"time_left": 4320000000000,
"load_percent": 6,
"charge_percent": 82,
"line_voltage": 120,
"low_transfer_voltage": 88,
"high_transfer_voltage": 139,
"battery_voltage": 25.2,
"nominal_battery_voltage": 24,
"nominal_input_voltage": 120,
"nominal_wattage": 865,
"battery_date": "2013-07-15T00:00:00Z",
"last_time_on_battery": "2021-11-06T15:39:29-04:00",
"last_time_off_battery": "2021-11-06T15:40:23-04:00",
"last_self_test": "0001-01-01T00:00:00Z"
}
Running apcmetrics events will display the last few events recorded by the APC UPS as JSON.
It defaults to collecting metrics from a locally running apcupsd daemon using the default
port of 3551. If apcupsd is not running locally, you can supply the address using the
--ups.address CLI flag. An example is given below.
$ apcmetrics events
[
{
"timestamp": "2021-10-31T19:28:19-04:00",
"message": "UPS Self Test switch to battery."
},
{
"timestamp": "2021-10-31T19:28:28-04:00",
"message": "UPS Self Test completed: Battery OK"
},
{
"timestamp": "2021-11-06T15:39:29-04:00",
"message": "Power failure."
},
{
"timestamp": "2021-11-06T15:39:35-04:00",
"message": "Running on UPS batteries."
},
{
"timestamp": "2021-11-06T15:40:23-04:00",
"message": "Mains returned. No longer on UPS batteries."
},
{
"timestamp": "2021-11-06T15:40:23-04:00",
"message": "Power is back. UPS running on mains."
}
]
To build a binary:
make build
To build a tagged release binary:
make build-dist
To build a Docker image
make image
To build a tagged release Docker image
make image-dist
To run tests
make test
To run lints
make lint
apcmetrics is available under the terms of the GPL, version 3.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you shall be licensed as above, without any additional terms or conditions.