diff options
Diffstat (limited to 'krebs')
| -rw-r--r-- | krebs/1systems/puyak/config.nix | 7 | ||||
| -rw-r--r-- | krebs/1systems/wolf/config.nix | 10 | ||||
| -rw-r--r-- | krebs/2configs/shack/prometheus/alert-rules.nix | 102 | ||||
| -rw-r--r-- | krebs/2configs/shack/prometheus/server.nix | 90 | ||||
| -rw-r--r-- | krebs/2configs/shack/ssh-keys.nix | 10 |
5 files changed, 121 insertions, 98 deletions
diff --git a/krebs/1systems/puyak/config.nix b/krebs/1systems/puyak/config.nix index 6493c6df4..a20f6929e 100644 --- a/krebs/1systems/puyak/config.nix +++ b/krebs/1systems/puyak/config.nix @@ -13,6 +13,7 @@ <stockholm/krebs/2configs/ircd.nix> <stockholm/krebs/2configs/news.nix> <stockholm/krebs/2configs/news-spam.nix> + <stockholm/krebs/2configs/shack/ssh-keys.nix> <stockholm/krebs/2configs/shack/prometheus/node.nix> <stockholm/krebs/2configs/shack/prometheus/server.nix> <stockholm/krebs/2configs/shack/prometheus/unifi.nix> @@ -81,12 +82,6 @@ echo level disengaged > /proc/acpi/ibm/fan ''; - # to access vorstand vm - users.users.root.openssh.authorizedKeys.keys = [ - config.krebs.users.ulrich.pubkey - config.krebs.users.raute.pubkey - ]; - users.users.joerg = { openssh.authorizedKeys.keys = [ config.krebs.users.Mic92.pubkey ]; isNormalUser = true; diff --git a/krebs/1systems/wolf/config.nix b/krebs/1systems/wolf/config.nix index e87b7bb99..059e09ac1 100644 --- a/krebs/1systems/wolf/config.nix +++ b/krebs/1systems/wolf/config.nix @@ -16,6 +16,7 @@ in # handle the worlddomination map via coap <stockholm/krebs/2configs/shack/worlddomination.nix> + <stockholm/krebs/2configs/shack/ssh-keys.nix> # drivedroid.shack for shackphone <stockholm/krebs/2configs/shack/drivedroid.nix> @@ -117,14 +118,6 @@ in fileSystems."/" = { device = "/dev/disk/by-label/nixos"; fsType = "ext4"; }; - users.extraUsers.root.openssh.authorizedKeys.keys = [ - config.krebs.users."0x4A6F".pubkey - config.krebs.users.ulrich.pubkey - config.krebs.users.raute.pubkey - "ssh-rsa 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 root@plattenschwein" # for backup - "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC1Lx5MKtVjB/Ef6LpEiIAgVwY5xKQFdHuLQR+odQO4cAgxj1QaIXGN0moixY52DebVQhAtiCNiFZ83uJyOj8kmu30yuXwtSOQeqziA859qMJKZ4ZcYdKvbXwnf2Chm5Ck/0FvtpjTWHIZAogwP1wQto/lcqHOjrTAnZeJfQuHTswYUSnmUU5zdsEZ9HidDPUc2Gv0wkBNd+KMQyOZl0HkaxHWvn0h4KK4hYZisOpeTfXJxD87bo+Eg4LL2vvnHW6dF6Ygrbd/0XRMsRRI8OAReVBUoJn7IE1wwAl/FpblNmhaF9hlL7g7hR1ADvaWMMw0e8SSzW6Y+oIa8qFQL6wR1 gitlab-builder" # for being deployed by gitlab ci - ]; - services.udev.extraRules = '' SUBSYSTEM=="net", ATTR{address}=="${external-mac}", NAME="${ext-if}" ''; @@ -137,6 +130,7 @@ in enable = true; wideArea = false; }; + environment.systemPackages = [ pkgs.avahi ]; } diff --git a/krebs/2configs/shack/prometheus/alert-rules.nix b/krebs/2configs/shack/prometheus/alert-rules.nix new file mode 100644 index 000000000..096c551ba --- /dev/null +++ b/krebs/2configs/shack/prometheus/alert-rules.nix @@ -0,0 +1,102 @@ +{ lib }: +with lib; + +let + deviceFilter = ''device!="ramfs",device!="rpc_pipefs",device!="lxcfs",device!="nsfs",device!="borgfs"''; +in mapAttrsToList (name: opts: { + alert = name; + expr = opts.condition; + for = opts.time or "2m"; + labels = if (opts.page or true) then { severity = "page"; } else {}; + annotations = { + summary = opts.summary; + description = opts.description; + }; +}) { + node_down = { + condition = ''up{job="node"} == 0''; + summary = "{{$labels.alias}}: Node is down."; + description = "{{$labels.alias}} has been down for more than 2 minutes."; + }; + node_systemd_service_failed = { + condition = ''node_systemd_unit_state{state="failed"} == 1''; + summary = "{{$labels.alias}}: Service {{$labels.name}} failed to start."; + description = "{{$labels.alias}} failed to (re)start service {{$labels.name}}."; + }; + node_filesystem_full_80percent = { + condition = ''sort(node_filesystem_free_bytes{${deviceFilter}} < node_filesystem_size_bytes{${deviceFilter}} * 0.2) / 1024^3''; + time = "10m"; + summary = "{{$labels.alias}}: Filesystem is running out of space soon."; + description = "{{$labels.alias}} device {{$labels.device}} on {{$labels.mountpoint}} got less than 20% space left on its filesystem."; + }; + node_filesystem_full_in_7d = { + condition = ''predict_linear(node_filesystem_free_bytes{${deviceFilter}}[2d], 7*24*3600) <= 0''; + time = "1h"; + summary = "{{$labels.alias}}: Filesystem is running out of space in 7 days."; + description = "{{$labels.alias}} device {{$labels.device}} on {{$labels.mountpoint}} is running out of space of in approx. 7 days"; + }; + node_filesystem_full_in_30d = { + condition = ''predict_linear(node_filesystem_free_bytes{${deviceFilter}}[30d], 30*24*3600) <= 0''; + time = "1h"; + summary = "{{$labels.alias}}: Filesystem is running out of space in 30 days."; + description = "{{$labels.alias}} device {{$labels.device}} on {{$labels.mountpoint}} is running out of space of in approx. 30 days"; + }; + node_filedescriptors_full_in_3h = { + condition = ''predict_linear(node_filefd_allocated[3h], 3*3600) >= node_filefd_maximum''; + time = "20m"; + 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"; + }; + node_filedescriptors_full_in_7d = { + condition = ''predict_linear(node_filefd_allocated[7d], 7*24*3600) >= node_filefd_maximum''; + time = "1h"; + summary = "{{$labels.alias}} is running out of available file descriptors in 7 days."; + description = "{{$labels.alias}} is running out of available file descriptors in approx. 7 days"; + }; + node_load15 = { + condition = ''node_load15 / on(alias) count(node_cpu_seconds_total{mode="system"}) by (alias) >= 1.0''; + time = "10m"; + summary = "{{$labels.alias}}: Running on high load: {{$value}}"; + description = "{{$labels.alias}} is running with load15 > 1 for at least 5 minutes: {{$value}}"; + }; + node_ram_using_90percent = { + condition = "node_memory_MemFree_bytes + node_memory_Buffers_bytes + node_memory_Cached_bytes < node_memory_MemTotal_bytes * 0.1"; + time = "1h"; + summary = "{{$labels.alias}}: Using lots of RAM."; + description = "{{$labels.alias}} is using at least 90% of its RAM for at least 1 hour."; + }; + node_swap_using_30percent = { + condition = "node_memory_SwapTotal_bytes - (node_memory_SwapFree_bytes + node_memory_SwapCached_bytes) > node_memory_SwapTotal_bytes * 0.3"; + time = "30m"; + summary = "{{$labels.alias}}: Using more than 30% of its swap."; + description = "{{$labels.alias}} is using 30% of its swap space for at least 30 minutes."; + }; + node_visible_confluence_space = { + condition = "node_visible_confluence_space != 0"; + summary = "crowd prometheus cann see the {{$labels.space_name}} confluence space!"; + description = "crowd user `prometheus` can see the `{{$labels.space_name}}` confluence space."; + }; + node_hwmon_temp = { + condition = "node_hwmon_temp_celsius > node_hwmon_temp_crit_celsius*0.9 OR node_hwmon_temp_celsius > node_hwmon_temp_max_celsius*0.95"; + time = "5m"; + summary = "{{$labels.alias}}: Sensor {{$labels.sensor}}/{{$labels.chip}} temp is high: {{$value}} "; + description = "{{$labels.alias}} reports hwmon sensor {{$labels.sensor}}/{{$labels.chip}} temperature value is nearly critical: {{$value}}"; + }; + node_conntrack_limit = { + condition = "node_nf_conntrack_entries_limit - node_nf_conntrack_entries < 1000"; + time = "5m"; + summary = "{{$labels.alias}}: Number of tracked connections high"; + description = "{{$labels.alias}} has only {{$value}} free slots for connection tracking available."; + }; + node_reboot = { + condition = "time() - node_boot_time_seconds < 300"; + summary = "{{$labels.alias}}: Reboot"; + description = "{{$labels.alias}} just rebooted."; + }; + node_uptime = { + condition = "time() - node_boot_time_seconds > 2592000"; + page = false; + summary = "{{$labels.alias}}: Uptime monster"; + description = "{{$labels.alias}} has been up for more than 30 days."; + }; +} diff --git a/krebs/2configs/shack/prometheus/server.nix b/krebs/2configs/shack/prometheus/server.nix index 7f6f38610..f5d2e7640 100644 --- a/krebs/2configs/shack/prometheus/server.nix +++ b/krebs/2configs/shack/prometheus/server.nix @@ -28,90 +28,12 @@ "-storage.local.index-cache-size.label-name-to-label-values 2097152" "-storage.local.index-cache-size.label-pair-to-fingerprints 41943040" ]; - rules = [ - '' - ALERT node_down - IF up == 0 - FOR 5m - LABELS { - severity="page" - } - ANNOTATIONS { - summary = "{{$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.", - } - '' - ]; + ruleFiles = lib.singleton (pkgs.writeText "prometheus-rules.yml" (builtins.toJSON { + groups = lib.singleton { + name = "mf-alerting-rules"; + rules = import ./alert-rules.nix { inherit lib; }; + }; + })); scrapeConfigs = [ { job_name = "node"; diff --git a/krebs/2configs/shack/ssh-keys.nix b/krebs/2configs/shack/ssh-keys.nix new file mode 100644 index 000000000..9c7f507f1 --- /dev/null +++ b/krebs/2configs/shack/ssh-keys.nix @@ -0,0 +1,10 @@ +{ config, ... }: +{ + users.users.root.openssh.authorizedKeys.keys = [ + config.krebs.users."0x4A6F".pubkey + config.krebs.users.ulrich.pubkey + config.krebs.users.raute.pubkey + "ssh-rsa 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 root@plattenschwein" # for backup + "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC1Lx5MKtVjB/Ef6LpEiIAgVwY5xKQFdHuLQR+odQO4cAgxj1QaIXGN0moixY52DebVQhAtiCNiFZ83uJyOj8kmu30yuXwtSOQeqziA859qMJKZ4ZcYdKvbXwnf2Chm5Ck/0FvtpjTWHIZAogwP1wQto/lcqHOjrTAnZeJfQuHTswYUSnmUU5zdsEZ9HidDPUc2Gv0wkBNd+KMQyOZl0HkaxHWvn0h4KK4hYZisOpeTfXJxD87bo+Eg4LL2vvnHW6dF6Ygrbd/0XRMsRRI8OAReVBUoJn7IE1wwAl/FpblNmhaF9hlL7g7hR1ADvaWMMw0e8SSzW6Y+oIa8qFQL6wR1 gitlab-builder" # for being deployed by gitlab ci + ]; +} |