diff options
| -rw-r--r-- | files/common/openwrt/chrony_prometheus-node-exporter.lua | 96 | ||||
| -rw-r--r-- | inventory/host_vars/ch-mon.yml | 2 |
2 files changed, 97 insertions, 1 deletions
diff --git a/files/common/openwrt/chrony_prometheus-node-exporter.lua b/files/common/openwrt/chrony_prometheus-node-exporter.lua new file mode 100644 index 00000000..30358898 --- /dev/null +++ b/files/common/openwrt/chrony_prometheus-node-exporter.lua @@ -0,0 +1,96 @@ +#!/usr/bin/lua +-- this is a lua-fied version of the python script that can be found here: +-- https://www.mail-archive.com/chrony-users@chrony.tuxfamily.org/msg02179.html + +local chrony_sourcestats_cmd = 'chronyc -n -c sourcestats' +local chrony_sources_cmd = 'chronyc -n -c sources' +local chrony_tracking_cmd = 'chronyc -n -c tracking' + +local status_types = {} +status_types['x'] = 0 +status_types['?'] = 1 +status_types['-'] = 2 +status_types['+'] = 3 +status_types['*'] = 4 + +local metrics_mode = {} +metrics_mode['^'] = "server" +metrics_mode['='] = "peer" +metrics_mode['#'] = "reference clock" + + +function get_cmdoutput(cmd) + local chrony_sourcestats, err = io.popen(cmd) + if err ~= nil then return nil, err end + + local lines = {} + for line in chrony_sourcestats:lines() do table.insert(lines, line) end + return lines +end + +function comma_split(s) + local elements = {} + for element in s:gmatch("([^,]*)") do + if element ~= "" then table.insert(elements, element) end + end + return elements +end + +function weight(value) + -- the reachability value is an octal number between 0 and 255 + -- the python script does rather complicated computations that + -- boil down to: value == 255 (377 oct) + if value == "377" then return 1 end + return 0 +end + + +local function scrape() + local metric_freq = metric("chronyd_freq_ppm", "gauge") + local metric_freq_skew = metric("chronyd_freq_skew_ppm", "gauge") + local metric_std_dev = metric("chronyd_std_dev_seconds", "gauge") + + local chrony_sourcestats = get_cmdoutput(chrony_sourcestats_cmd) + local line + for _, line in ipairs(chrony_sourcestats) do + local items = comma_split(line) + local labels = { remote = items[1] } + metric_freq(labels, tonumber(items[5])) + metric_freq_skew(labels, tonumber(items[6])) + metric_std_dev(labels, tonumber(items[8])) + end + + local metric_peer_status = metric("chronyd_peer_status", "gauge") + local metric_offset_seconds = metric("chronyd_offset_seconds", "gauge") + local metric_peer_reachable = metric("chronyd_peer_reachable", "gauge") + local chrony_sources = get_cmdoutput(chrony_sources_cmd) + for _, line in ipairs(chrony_sources) do + local items = comma_split(line) + local common_labels = { remote = items[3] } + local peer_labels = { remote = items[3], stratum = tonumber(items[4]), mode = metrics_mode[items[1]] } + metric_peer_status(peer_labels, status_types[items[2]]) + metric_offset_seconds(common_labels, tonumber(items[9])) + metric_peer_reachable(peer_labels, weight(items[6])) + end + + print("########") + local chrony_tracking = get_cmdoutput(chrony_tracking_cmd) + for _, line in ipairs(chrony_tracking) do + local items = comma_split(line) + metric("chronyd_tracking_source", "gauge", { value = items[2]}, 1) + metric("chronyd_tracking_stratum", "gauge", nil, tonumber(items[3])) + metric("chronyd_tracking_ref_time", "gauge", nil, tonumber(items[4])) + metric("chronyd_tracking_system_time", "gauge", nil, tonumber(items[5])) + metric("chronyd_tracking_last_offset", "gauge", nil, tonumber(items[6])) + metric("chronyd_tracking_rms_offset", "gauge", nil, tonumber(items[7])) + metric("chronyd_tracking_frequency_error", "gauge", nil, tonumber(items[8])) + metric("chronyd_tracking_frequency_residual", "gauge", nil, tonumber(items[9])) + metric("chronyd_tracking_frequency_skew", "gauge", nil, tonumber(items[10])) + metric("chronyd_tracking_root_delay", "gauge", nil, tonumber(items[11])) + metric("chronyd_tracking_root_dispersion", "gauge", nil, tonumber(items[12])) + metric("chronyd_tracking_update_interval", "gauge", nil, tonumber(items[13])) + metric("chronyd_tracking_leap_status", "gauge", { value = items[14]}, 1) + end +end + +return { scrape = scrape } diff --git a/inventory/host_vars/ch-mon.yml b/inventory/host_vars/ch-mon.yml index cf570e4d..b95b998a 100644 --- a/inventory/host_vars/ch-mon.yml +++ b/inventory/host_vars/ch-mon.yml @@ -107,7 +107,7 @@ prometheus_server_jobs_extra: | - job_name: 'node-helsinki' static_configs: - targets: - - 192.168.28.151:9100 + - 192.168.28.77:9100 labels: instance: rh-router-apu metric_relabel_configs: |