From 3a53f289b2bd8fecbb365351235c0a1988e72273 Mon Sep 17 00:00:00 2001
From: Florian Sesser <florian@private.storage>
Date: Fri, 26 Nov 2021 16:16:10 +0000
Subject: [PATCH] Loki: Add promtail to monitoring machine
---
morph/lib/monitoring.nix | 3 +-
.../modules/monitoring/exporters/promtail.nix | 34 +++++++++++++++++++
2 files changed, 36 insertions(+), 1 deletion(-)
create mode 100644 nixos/modules/monitoring/exporters/promtail.nix
diff --git a/morph/lib/monitoring.nix b/morph/lib/monitoring.nix
index 066f554c..32454abd 100644
--- a/morph/lib/monitoring.nix
+++ b/morph/lib/monitoring.nix
@@ -24,8 +24,9 @@
../../nixos/modules/monitoring/vpn/server.nix
../../nixos/modules/monitoring/server/grafana.nix
../../nixos/modules/monitoring/server/prometheus.nix
+ ../../nixos/modules/monitoring/server/loki.nix
../../nixos/modules/monitoring/exporters/node.nix
../../nixos/modules/monitoring/exporters/blackbox.nix
- ../../nixos/modules/monitoring/server/loki.nix
+ ../../nixos/modules/monitoring/exporters/promtail.nix
];
}
diff --git a/nixos/modules/monitoring/exporters/promtail.nix b/nixos/modules/monitoring/exporters/promtail.nix
new file mode 100644
index 00000000..8b5e45ac
--- /dev/null
+++ b/nixos/modules/monitoring/exporters/promtail.nix
@@ -0,0 +1,34 @@
+# Promtail log forwarder configuration
+#
+# Scope: Tail logs on the local system and send them to Loki
+#
+# Description: This is not strictly an "exporter" like the Prometheus
+# exporters, but it is very similar in what it is doing -
+# preparing local data and sending it off to a TSDB.
+
+{
+ config.services.promtail.enable = true;
+ config.services.promtail.configuration = {
+ server = {
+ http_listen_port = 9080;
+ grpc_listen_port = 0;
+ };
+
+ clients = [{
+ url = "http://monitoring:3100/loki/api/v1/push";
+ }];
+
+ scrape_configs = [{
+ job_name = "systemd-journal";
+ journal = {
+ labels = {
+ job = "systemd-journal";
+ };
+ };
+ relabel_configs = [{
+ source_labels = [ "__journal__systemd_unit" ];
+ target_label = "unit";
+ }];
+ }];
+ };
+}
--
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