From 9577adb1c4bc46b281182345cdc5108385756411 Mon Sep 17 00:00:00 2001 From: K900 Date: Fri, 5 Jul 2024 14:25:27 +0300 Subject: [PATCH] Add Grafana/Prometheus/Mimir minimal setup More later, Loki also later. --- hosts/bagel-box/default.nix | 1 + hosts/cl.forkos.org/default.nix | 1 + hosts/meta01.nixpkgs.lahfa.xyz/default.nix | 3 + secrets.nix | 2 + secrets/grafana-oauth-secret.age | 7 + secrets/mimir-environment.age | Bin 0 -> 431 bytes services/default.nix | 1 + services/monitoring/default.nix | 6 + services/monitoring/exporters/baseline.nix | 34 + services/monitoring/exporters/default.nix | 32 + services/monitoring/lgtm/alerts/.gitkeep | 0 .../lgtm/dashboards/node_exporter.json | 24148 ++++++++++++++++ services/monitoring/lgtm/default.nix | 6 + services/monitoring/lgtm/grafana.nix | 126 + services/monitoring/lgtm/prometheus.nix | 83 + 15 files changed, 24450 insertions(+) create mode 100644 secrets/grafana-oauth-secret.age create mode 100644 secrets/mimir-environment.age create mode 100644 services/monitoring/default.nix create mode 100644 services/monitoring/exporters/baseline.nix create mode 100644 services/monitoring/exporters/default.nix create mode 100644 services/monitoring/lgtm/alerts/.gitkeep create mode 100644 services/monitoring/lgtm/dashboards/node_exporter.json create mode 100644 services/monitoring/lgtm/default.nix create mode 100644 services/monitoring/lgtm/grafana.nix create mode 100644 services/monitoring/lgtm/prometheus.nix diff --git a/hosts/bagel-box/default.nix b/hosts/bagel-box/default.nix index eed24b1..f9a929a 100644 --- a/hosts/bagel-box/default.nix +++ b/hosts/bagel-box/default.nix @@ -40,6 +40,7 @@ hydra.enable = true; hydra.dbi = "dbi:Pg:dbname=hydra;user=hydra"; }; + bagel.meta.monitoring.address = "bagel-box.delroth.net"; security.acme.acceptTerms = true; security.acme.defaults.email = "bagel@delroth.net"; diff --git a/hosts/cl.forkos.org/default.nix b/hosts/cl.forkos.org/default.nix index a0f9f85..a483271 100755 --- a/hosts/cl.forkos.org/default.nix +++ b/hosts/cl.forkos.org/default.nix @@ -24,6 +24,7 @@ }; }; }; + bagel.meta.monitoring.address = "gerrit01.infra.forkos.org"; fileSystems."/gerrit-data" = { device = "/dev/disk/by-uuid/d1062305-0dea-4740-9a27-b6b1691862a4"; diff --git a/hosts/meta01.nixpkgs.lahfa.xyz/default.nix b/hosts/meta01.nixpkgs.lahfa.xyz/default.nix index 31b36d1..5800aac 100755 --- a/hosts/meta01.nixpkgs.lahfa.xyz/default.nix +++ b/hosts/meta01.nixpkgs.lahfa.xyz/default.nix @@ -21,6 +21,9 @@ enable = true; domain = "netbox.forkos.org"; }; + bagel.meta.monitoring.address = "meta01.infra.forkos.org"; + bagel.services.prometheus.enable = true; + bagel.services.grafana.enable = true; i18n.defaultLocale = "fr_FR.UTF-8"; diff --git a/secrets.nix b/secrets.nix index 3b1a9dd..c3b1ab3 100644 --- a/secrets.nix +++ b/secrets.nix @@ -7,6 +7,8 @@ let hydra-s3-credentials = [ machines.bagel-box ]; hydra-ssh-key-priv = [ machines.bagel-box ]; netbox-environment = [ machines.meta01 ]; + mimir-environment = [ machines.meta01 ]; + grafana-oauth-secret = [ machines.meta01 ]; }; in builtins.listToAttrs ( diff --git a/secrets/grafana-oauth-secret.age b/secrets/grafana-oauth-secret.age new file mode 100644 index 0000000..660c992 --- /dev/null +++ b/secrets/grafana-oauth-secret.age @@ -0,0 +1,7 @@ +age-encryption.org/v1 +-> ssh-ed25519 j2r2qQ Xl0fSOuF0xNTJrtVGdRLRIszd15LFrG5KCFNvSBK4Go +qSEMBBw90jz4j8elpoUeyS4CTLBhZtNDhLNigesJq+0 +-> ssh-ed25519 K3b7BA cKI0twKiuuTKv1Js4jqt5v8cOqpxEMY9dmVghgJtbzw +K5o31XP/nLsswsrMaxnIzCXVUtJqmJWoFglWFsV7+AQ +--- X8pvqCHeCQ0LjzcjIHThkqp6YeOOT8dBMLuktgdgeY4 +sZ[XŮ5=6)TQN{xI1!ӖB z*L~K \ No newline at end of file diff --git a/secrets/mimir-environment.age b/secrets/mimir-environment.age new file mode 100644 index 0000000000000000000000000000000000000000..0e383def2121bf2281e451971a43ed30ab75078c GIT binary patch literal 431 zcmYdHPt{G$OD?J`D9Oyv)5|YP*Do{V(zR14F3!+RO))YxHMCU7GAc4E3{)uf^YAUp zjBpDvD9I1Yj!3sCa5K_3GjdBw&d7~2@JRRaNOTGdFmVhpEaxguaW3|%Ecftpt<=`n zF3t)~_b5n7_bhQt3Nb1uF$;I92+uYv$}R{mDMz=>+c?SG$x$IqzcM^1r8K-CB)l-k z+qXbFKRwvr#WbThu{bHf)6pw0Ei~9SJ+H(g+?6ZYz)Rb;C^E?-+d0CtGT+;|)H0&H zq$;s2-#FDII5IyhH7L*B%_286+k{J3S64wl!!oq8Ji^By&o#TiBFnJc(Adm1Jj%^D zsLIRGJ=CqL*gPyE(aR~ntei`^`FZN6H6Qne_I=`ZK7Ap~Cg6PUhKL#DshuaXS@%vT^E1yirM^gIkxE)0=&vws-LXQ zl6!I@>t?8Xk-?MQVl{V_d5=2vzv^Y^c+Bvmo^{&8?L2n3?p&6g^yQGULc&|i#I#ic QjLU!UtSkDmrM`DQ0JR~eVgLXD literal 0 HcmV?d00001 diff --git a/services/default.nix b/services/default.nix index 1e4488a..0f0954d 100644 --- a/services/default.nix +++ b/services/default.nix @@ -4,5 +4,6 @@ ./postgres ./netbox ./gerrit + ./monitoring ]; } diff --git a/services/monitoring/default.nix b/services/monitoring/default.nix new file mode 100644 index 0000000..77289f2 --- /dev/null +++ b/services/monitoring/default.nix @@ -0,0 +1,6 @@ +{ + imports = [ + ./exporters + ./lgtm + ]; +} \ No newline at end of file diff --git a/services/monitoring/exporters/baseline.nix b/services/monitoring/exporters/baseline.nix new file mode 100644 index 0000000..835fdee --- /dev/null +++ b/services/monitoring/exporters/baseline.nix @@ -0,0 +1,34 @@ +{ + config, + lib, + ... +}: +let + cfg = config.bagel.monitoring.exporters.baseline; + inherit (lib) mkEnableOption mkIf; +in +{ + options.bagel.monitoring.exporters.baseline.enable = (mkEnableOption "Standard set of exporters") // { default = true; }; + + config = mkIf cfg.enable { + services.prometheus.exporters.node = { + enable = true; + enabledCollectors = [ + "processes" + "systemd" + ]; + port = 9101; + }; + + services.cadvisor = { + enable = true; + port = 9102; + listenAddress = "0.0.0.0"; + }; + + bagel.meta.monitoring.exporters = [ + { port = 9101; } + { port = 9102; } + ]; + }; +} \ No newline at end of file diff --git a/services/monitoring/exporters/default.nix b/services/monitoring/exporters/default.nix new file mode 100644 index 0000000..cc24f3b --- /dev/null +++ b/services/monitoring/exporters/default.nix @@ -0,0 +1,32 @@ +{ + config, + lib, + ... +}: +let + inherit (lib) mkOption types; +in +{ + imports = [./baseline.nix]; + + options.bagel = { + meta.monitoring = { + address = mkOption { + description = "Node's public address"; + type = types.str; + }; + exporters = mkOption { + description = "List of all exporters to scrape"; + type = types.listOf (types.submodule { + options.port = mkOption { + description = "Exporter port"; + type = types.int; + }; + }); + default = []; + }; + }; + }; + + config.networking.firewall.allowedTCPPorts = map (e: e.port) config.bagel.meta.monitoring.exporters; +} \ No newline at end of file diff --git a/services/monitoring/lgtm/alerts/.gitkeep b/services/monitoring/lgtm/alerts/.gitkeep new file mode 100644 index 0000000..e69de29 diff --git a/services/monitoring/lgtm/dashboards/node_exporter.json b/services/monitoring/lgtm/dashboards/node_exporter.json new file mode 100644 index 0000000..5c5f61a --- 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{ + "refresh_intervals": [ + "5s", + "10s", + "30s", + "1m", + "5m", + "15m", + "30m", + "1h", + "2h", + "1d" + ], + "time_options": [ + "5m", + "15m", + "1h", + "6h", + "12h", + "24h", + "2d", + "7d", + "30d" + ] + }, + "timezone": "browser", + "title": "node_exporter", + "uid": "rYdddlPWk", + "version": 1, + "weekStart": "" +} \ No newline at end of file diff --git a/services/monitoring/lgtm/default.nix b/services/monitoring/lgtm/default.nix new file mode 100644 index 0000000..eccb275 --- /dev/null +++ b/services/monitoring/lgtm/default.nix @@ -0,0 +1,6 @@ +{ + imports = [ + ./grafana.nix + ./prometheus.nix + ]; +} \ No newline at end of file diff --git a/services/monitoring/lgtm/grafana.nix b/services/monitoring/lgtm/grafana.nix new file mode 100644 index 0000000..64ed3d1 --- /dev/null +++ b/services/monitoring/lgtm/grafana.nix @@ -0,0 +1,126 @@ +{ + config, + lib, + ... +}: +let + cfg = config.bagel.services.grafana; + inherit (lib) mkEnableOption mkIf; +in +{ + options.bagel.services.grafana.enable = mkEnableOption "Grafana frontend"; + + config = mkIf cfg.enable { + age.secrets.grafana-oauth-secret = { + file = ../../../secrets/grafana-oauth-secret.age; + owner = "grafana"; + }; + + bagel.services.postgres.enable = true; + + services = { + grafana = { + enable = true; + + settings = { + server = { + domain = "grafana.forkos.org"; + http_addr = "127.0.0.1"; + http_port = 2342; + root_url = "https://grafana.forkos.org/"; + }; + + database = { + type = "postgres"; + user = "grafana"; + host = "/run/postgresql"; + }; + + "auth.generic_oauth" = { + enabled = true; + + name = "Lix SSO"; + client_id = "forkos-grafana"; + client_secret = "$__file{${config.age.secrets.grafana-oauth-secret.path}}"; + + auth_url = "https://identity.lix.systems/realms/lix-project/protocol/openid-connect/auth"; + token_url = "https://identity.lix.systems/realms/lix-project/protocol/openid-connect/token"; + api_url = "https://identity.lix.systems/realms/lix-project/protocol/openid-connect/userinfo"; + + login_attribute_path = "username"; + email_attribute_path = "email"; + name_attribute_path = "full_name"; + + scopes = [ + "openid" + "profile" + "email" + "offline_access" + "roles" + ]; + + allow_sign_up = true; + auto_login = true; + allow_assign_grafana_admin = true; + + role_attribute_path = "contains(roles[*], 'grafana-admin') && 'GrafanaAdmin' || contains(roles[*], 'grafana-editor') && 'Editor' || 'Viewer'"; + }; + + dashboards.default_home_dashboard_path = "${./dashboards/node_exporter.json}"; + + feature_toggles.enable = "autoMigrateOldPanels newVizTooltips"; + security.angular_support_enabled = false; + }; + + provision = { + dashboards.settings = { + apiVersion = 1; + providers = [ + { + name = "default"; + options.path = ./dashboards; + } + ]; + }; + + datasources.settings = { + apiVersion = 1; + datasources = [ + { + name = "Mimir"; + type = "prometheus"; + uid = "mimir"; + access = "proxy"; + url = "http://127.0.0.1:9009/prometheus"; + } + ]; + }; + }; + }; + + postgresql = { + ensureDatabases = [ "grafana" ]; + ensureUsers = [ + { + name = "grafana"; + ensureDBOwnership = true; + } + ]; + }; + + nginx = let + scfg = config.services.grafana.settings.server; + in { + enable = true; + virtualHosts."${scfg.domain}" = { + enableACME = true; + forceSSL = true; + locations."/" = { + proxyPass = "http://${scfg.http_addr}:${toString scfg.http_port}"; + proxyWebsockets = true; + }; + }; + }; + }; +}; +} diff --git a/services/monitoring/lgtm/prometheus.nix b/services/monitoring/lgtm/prometheus.nix new file mode 100644 index 0000000..2f83b8f --- /dev/null +++ b/services/monitoring/lgtm/prometheus.nix @@ -0,0 +1,83 @@ +{ + config, + lib, + nodes, + ... +}: +let + cfg = config.bagel.services.prometheus; + inherit (lib) mkEnableOption mkIf; + + forEachMachine = fn: map fn (builtins.attrValues nodes); + + allMetas = forEachMachine (machine: { + name = machine.config.networking.hostName; + address = machine.config.bagel.meta.monitoring.address or null; + exporters = machine.config.bagel.meta.monitoring.exporters or []; + }); + + scrapableMetas = builtins.filter (m: m.address != null && m.exporters != []) allMetas; + + toJobConfig = m: { + job_name = m.name; + static_configs = [ + { targets = map (e: m.address + ":" + (toString e.port)) m.exporters; } + ]; + }; + + jobConfigs = map toJobConfig scrapableMetas; +in +{ + options.bagel.services.prometheus.enable = mkEnableOption "Prometheus scraper"; + + config = mkIf cfg.enable { + age.secrets.mimir-environment.file = ../../../secrets/mimir-environment.age; + + services.prometheus = { + enable = true; + enableAgentMode = true; + listenAddress = "127.0.0.1"; + port = 9001; + globalConfig.scrape_interval = "15s"; + scrapeConfigs = jobConfigs; + remoteWrite = [ + { url = "http://localhost:9009/api/v1/push"; } + ]; + }; + + services.mimir = { + enable = true; + extraFlags = ["--config.expand-env=true"]; + configuration = { + multitenancy_enabled = false; + + common.storage = { + backend = "s3"; + s3 = { + endpoint = "s3.delroth.net"; + bucket_name = "bagel-mimir"; + secret_access_key = "\${S3_KEY}"; # This is a secret injected via an environment variable + access_key_id = "\${S3_KEY_ID}"; + }; + }; + + server = { + http_listen_port = 9009; + grpc_server_max_recv_msg_size = 104857600; + grpc_server_max_send_msg_size = 104857600; + grpc_server_max_concurrent_streams = 1000; + }; + + ingester.ring.replication_factor = 1; + + blocks_storage.backend = "s3"; + ruler_storage = { + backend = "local"; + local.directory = ./alerts; + }; + }; + }; + + systemd.services.mimir.serviceConfig.EnvironmentFile = [ config.age.secrets.mimir-environment.path ]; + }; +}