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-rw-r--r--lass/2configs/monitoring/client.nix26
-rw-r--r--lass/2configs/monitoring/monit-alarms.nix44
-rw-r--r--lass/2configs/monitoring/node-exporter.nix15
-rw-r--r--lass/2configs/monitoring/prometheus-server.nix217
-rw-r--r--lass/2configs/monitoring/server.nix87
5 files changed, 232 insertions, 157 deletions
diff --git a/lass/2configs/monitoring/client.nix b/lass/2configs/monitoring/client.nix
deleted file mode 100644
index b8c245215..000000000
--- a/lass/2configs/monitoring/client.nix
+++ /dev/null
@@ -1,26 +0,0 @@
-{pkgs, config, ...}:
-with import <stockholm/lib>;
-{
- services.telegraf = {
- enable = true;
-
- extraConfig = {
- agent.interval = "1s";
- outputs = {
- influxdb = {
- urls = ["http://prism:8086"];
- database = "telegraf_db";
- user_agent = "telegraf";
- };
- };
- inputs = {
- cpu = {
- percpu = false;
- totalcpu = true;
- };
- mem = {};
- net = {};
- };
- };
- };
-}
diff --git a/lass/2configs/monitoring/monit-alarms.nix b/lass/2configs/monitoring/monit-alarms.nix
deleted file mode 100644
index 2cfc292e5..000000000
--- a/lass/2configs/monitoring/monit-alarms.nix
+++ /dev/null
@@ -1,44 +0,0 @@
-{pkgs, config, ...}:
-with import <stockholm/lib>;
-let
- echoToIrc = msg:
- pkgs.writeDash "echo_irc" ''
- set -euf
- export LOGNAME=prism-alarm
- ${pkgs.irc-announce}/bin/irc-announce \
- irc.r 6667 ${config.networking.hostName}-alarm \#noise "${msg}" >/dev/null
- '';
-
-in {
- krebs.monit = {
- enable = true;
- http.enable = true;
- alarms = {
- nirwanabluete = {
- test = "${pkgs.curl}/bin/curl -sf 'https://nirwanabluete.de/'";
- alarm = echoToIrc "test nirwanabluete failed";
- };
- ubik = {
- test = "${pkgs.curl}/bin/curl -sf 'https://ubikmedia.de'";
- alarm = echoToIrc "test ubik failed";
- };
- cac-panel = {
- test = "${pkgs.curl}/bin/curl -sf 'https://panel.cloudatcost.com/login.php'";
- alarm = echoToIrc "test cac-panel failed";
- };
- radio = {
- test = pkgs.writeBash "check_stream" ''
- ${pkgs.curl}/bin/curl -sif http://lassul.us:8000/radio.ogg \
- | ${pkgs.gawk}/bin/awk '/^\r$/{exit}{print $0}' \
- | ${pkgs.gnugrep}/bin/grep -q "200 OK" || exit "''${PIPESTATUS[0]}"
- '';
- alarm = echoToIrc "test radio failed";
- };
- };
- };
-
- krebs.iptables.tables.filter.INPUT.rules = [
- { predicate = "-p tcp -i retiolum --dport 9093"; target = "ACCEPT"; }
- ];
-}
-
diff --git a/lass/2configs/monitoring/node-exporter.nix b/lass/2configs/monitoring/node-exporter.nix
new file mode 100644
index 000000000..561e3a25c
--- /dev/null
+++ b/lass/2configs/monitoring/node-exporter.nix
@@ -0,0 +1,15 @@
+{ config, lib, pkgs, ... }:
+{
+ krebs.iptables.tables.filter.INPUT.rules = [
+ { predicate = "-i retiolum -p tcp --dport 9100 -s ${config.krebs.hosts.prism.nets.retiolum.ip4.addr}"; target = "ACCEPT"; v6 = false; }
+ { predicate = "-i retiolum -p tcp --dport 9100 -s ${config.krebs.hosts.prism.nets.retiolum.ip6.addr}"; target = "ACCEPT"; v4 = false; }
+ ];
+ services.prometheus.exporters = {
+ node = {
+ enable = true;
+ enabledCollectors = [
+ "systemd"
+ ];
+ };
+ };
+}
diff --git a/lass/2configs/monitoring/prometheus-server.nix b/lass/2configs/monitoring/prometheus-server.nix
new file mode 100644
index 000000000..1f9419e1a
--- /dev/null
+++ b/lass/2configs/monitoring/prometheus-server.nix
@@ -0,0 +1,217 @@
+{ pkgs, lib, config, ... }:
+{
+ #networking = {
+ # firewall.allowedTCPPorts = [
+ # 3000 # grafana
+ # 9090 # prometheus
+ # 9093 # alertmanager
+ # ];
+ # useDHCP = true;
+ #};
+
+ krebs.iptables.tables.filter.INPUT.rules = [
+ { predicate = "-i retiolum -p tcp --dport 3000"; target = "ACCEPT"; }
+ { predicate = "-i retiolum -p tcp --dport 9090"; target = "ACCEPT"; }
+ { predicate = "-i retiolum -p tcp --dport 9093"; target = "ACCEPT"; }
+ ];
+
+ services = {
+ prometheus = {
+ enable = true;
+ extraFlags = [
+ "-storage.local.retention 8760h"
+ "-storage.local.series-file-shrink-ratio 0.3"
+ "-storage.local.memory-chunks 2097152"
+ "-storage.local.max-chunks-to-persist 1048576"
+ "-storage.local.index-cache-size.fingerprint-to-metric 2097152"
+ "-storage.local.index-cache-size.fingerprint-to-timerange 1048576"
+ "-storage.local.index-cache-size.label-name-to-label-values 2097152"
+ "-storage.local.index-cache-size.label-pair-to-fingerprints 41943040"
+ ];
+ alertmanagerURL = [ "http://localhost:9093" ];
+ rules = [
+ ''
+ ALERT node_down
+ IF up == 0
+ FOR 5m
+ LABELS {
+ severity="page"
+ }
+ ANNOTATIONS {
+ summary = "{{$labels.alias}}: Node is down.",
+ description = "{{$labels.alias}} has been down for more than 5 minutes."
+ }
+ ALERT node_systemd_service_failed
+ IF node_systemd_unit_state{state="failed"} == 1
+ FOR 4m
+ LABELS {
+ severity="page"
+ }
+ ANNOTATIONS {
+ summary = "{{$labels.alias}}: Service {{$labels.name}} failed to start.",
+ description = "{{$labels.alias}} failed to (re)start service {{$labels.name}}."
+ }
+ ALERT node_filesystem_full_90percent
+ IF sort(node_filesystem_free{device!="ramfs"} < node_filesystem_size{device!="ramfs"} * 0.1) / 1024^3
+ FOR 5m
+ LABELS {
+ severity="page"
+ }
+ ANNOTATIONS {
+ summary = "{{$labels.alias}}: Filesystem is running out of space soon.",
+ description = "{{$labels.alias}} device {{$labels.device}} on {{$labels.mountpoint}} got less than 10% space left on its filesystem."
+ }
+ ALERT node_filesystem_full_in_4h
+ IF predict_linear(node_filesystem_free{device!="ramfs"}[1h], 4*3600) <= 0
+ FOR 5m
+ LABELS {
+ severity="page"
+ }
+ ANNOTATIONS {
+ summary = "{{$labels.alias}}: Filesystem is running out of space in 4 hours.",
+ description = "{{$labels.alias}} device {{$labels.device}} on {{$labels.mountpoint}} is running out of space of in approx. 4 hours"
+ }
+ ALERT node_filedescriptors_full_in_3h
+ IF predict_linear(node_filefd_allocated[1h], 3*3600) >= node_filefd_maximum
+ FOR 20m
+ LABELS {
+ severity="page"
+ }
+ ANNOTATIONS {
+ summary = "{{$labels.alias}} is running out of available file descriptors in 3 hours.",
+ description = "{{$labels.alias}} is running out of available file descriptors in approx. 3 hours"
+ }
+ ALERT node_load1_90percent
+ IF node_load1 / on(alias) count(node_cpu{mode="system"}) by (alias) >= 0.9
+ FOR 1h
+ LABELS {
+ severity="page"
+ }
+ ANNOTATIONS {
+ summary = "{{$labels.alias}}: Running on high load.",
+ description = "{{$labels.alias}} is running with > 90% total load for at least 1h."
+ }
+ ALERT node_cpu_util_90percent
+ IF 100 - (avg by (alias) (irate(node_cpu{mode="idle"}[5m])) * 100) >= 90
+ FOR 1h
+ LABELS {
+ severity="page"
+ }
+ ANNOTATIONS {
+ summary = "{{$labels.alias}}: High CPU utilization.",
+ description = "{{$labels.alias}} has total CPU utilization over 90% for at least 1h."
+ }
+ ALERT node_ram_using_90percent
+ IF node_memory_MemFree + node_memory_Buffers + node_memory_Cached < node_memory_MemTotal * 0.1
+ FOR 30m
+ LABELS {
+ severity="page"
+ }
+ ANNOTATIONS {
+ summary="{{$labels.alias}}: Using lots of RAM.",
+ description="{{$labels.alias}} is using at least 90% of its RAM for at least 30 minutes now.",
+ }
+ ALERT node_swap_using_80percent
+ IF node_memory_SwapTotal - (node_memory_SwapFree + node_memory_SwapCached) > node_memory_SwapTotal * 0.8
+ FOR 10m
+ LABELS {
+ severity="page"
+ }
+ ANNOTATIONS {
+ summary="{{$labels.alias}}: Running out of swap soon.",
+ description="{{$labels.alias}} is using 80% of its swap space for at least 10 minutes now."
+ }
+ ''
+ ];
+ scrapeConfigs = [
+ {
+ job_name = "node";
+ scrape_interval = "10s";
+ static_configs = [
+ {
+ targets = [
+ ] ++ map (host: "${host}:9100") (lib.attrNames (lib.filterAttrs (_: host: host.owner.name == "lass" && host.monitoring) config.krebs.hosts));
+ #labels = {
+ # alias = "prometheus.example.com";
+ #};
+ }
+ ];
+ }
+ ];
+ alertmanager = {
+ enable = true;
+ listenAddress = "0.0.0.0";
+ configuration = {
+ "global" = {
+ "smtp_smarthost" = "smtp.example.com:587";
+ "smtp_from" = "alertmanager@example.com";
+ };
+ "route" = {
+ "group_by" = [ "alertname" "alias" ];
+ "group_wait" = "30s";
+ "group_interval" = "2m";
+ "repeat_interval" = "4h";
+ "receiver" = "team-admins";
+ };
+ "receivers" = [
+ {
+ "name" = "team-admins";
+ "email_configs" = [
+ {
+ "to" = "devnull@example.com";
+ "send_resolved" = true;
+ }
+ ];
+ "webhook_configs" = [
+ {
+ "url" = "https://example.com/prometheus-alerts";
+ "send_resolved" = true;
+ }
+ ];
+ }
+ ];
+ };
+ };
+ };
+ grafana = {
+ enable = true;
+ addr = "0.0.0.0";
+ domain = "grafana.example.com";
+ rootUrl = "https://grafana.example.com/";
+ security = import <secrets/grafana_security.nix>; # { AdminUser = ""; adminPassword = ""}
+ };
+ };
+ services.logstash = {
+ enable = true;
+ inputConfig = ''
+ http {
+ port => 14813
+ host => "127.0.0.1"
+ }
+ '';
+ filterConfig = ''
+ if ([alerts]) {
+ ruby {
+ code => '
+ lines = []
+ event["alerts"].each {|p|
+ lines << "#{p["labels"]["instance"]}#{p["annotations"]["summary"]} #{p["status"]}"
+ }
+ event["output"] = lines.join("\n")
+ '
+ }
+ }
+ '';
+ outputConfig = ''
+ file { path => "/tmp/logs.json" codec => "json_lines" }
+ irc {
+ channels => [ "#noise" ]
+ host => "irc.r"
+ nick => "alarm"
+ codec => "json_lines"
+ format => "%{output}"
+ }
+ '';
+ #plugins = [ ];
+ };
+}
diff --git a/lass/2configs/monitoring/server.nix b/lass/2configs/monitoring/server.nix
deleted file mode 100644
index adaecde2c..000000000
--- a/lass/2configs/monitoring/server.nix
+++ /dev/null
@@ -1,87 +0,0 @@
-{pkgs, config, ...}:
-with import <stockholm/lib>;
-{
- services.influxdb.enable = true;
-
- services.influxdb.extraConfig = {
- meta.hostname = config.krebs.build.host.name;
- # meta.logging-enabled = true;
- http.bind-address = ":8086";
- admin.bind-address = ":8083";
- http.log-enabled = false;
- monitoring = {
- enabled = false;
- # write-interval = "24h";
- };
- collectd = [{
- enabled = true;
- typesdb = "${pkgs.collectd}/share/collectd/types.db";
- database = "collectd_db";
- port = 25826;
- }];
- };
-
- krebs.kapacitor =
- let
- db = "telegraf_db";
- echoToIrc = pkgs.writeDash "echo_irc" ''
- set -euf
- data="$(${pkgs.jq}/bin/jq -r .message)"
- export LOGNAME=prism-alarm
- ${pkgs.irc-announce}/bin/irc-announce \
- irc.r 6667 prism-alarm \#noise "$data" >/dev/null
- '';
- in {
- enable = true;
- alarms = {
- cpu = {
- database = db;
- text = ''
- var data = batch
- |query(${"'''"}
- SELECT mean("usage_user") AS mean
- FROM "${db}"."default"."cpu"
- ${"'''"})
- .period(10m)
- .every(1m)
- .groupBy('host')
- data |alert()
- .crit(lambda: "mean" > 90)
- .exec('${echoToIrc}')
- data |deadman(1.0,5m)
- .stateChangesOnly()
- .exec('${echoToIrc}')
- '';
- };
- ram = {
- database = db;
- text = ''
- var data = batch
- |query(${"'''"}
- SELECT mean("used_percent") AS mean
- FROM "${db}"."default"."mem"
- ${"'''"})
- .period(10m)
- .every(1m)
- .groupBy('host')
- data |alert()
- .crit(lambda: "mean" > 90)
- .exec('${echoToIrc}')
- '';
- };
- };
- };
-
- services.grafana = {
- enable = true;
- addr = "0.0.0.0";
- auth.anonymous.enable = true;
- security = import <secrets/grafana_security.nix>; # { AdminUser = ""; adminPassword = ""}
- };
-
- krebs.iptables.tables.filter.INPUT.rules = [
- { predicate = "-p tcp -i retiolum --dport 8086"; target = "ACCEPT"; }
- { predicate = "-p tcp -i retiolum --dport 3000"; target = "ACCEPT"; }
- { predicate = "-p udp -i retiolum --dport 25826"; target = "ACCEPT"; }
- ];
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-18 11:56:49 +0000